text:
Office of Scientific and Technical Information
Solar Resource & Meteorological Assessment Project (SOLRMAP): Observed Atmospheric and Solar Information System (OASIS); Tucson, Arizona (Data)
SciTech Connect (OSTI)
The U.S. Department of Energy's National Renewable Energy Laboratory collaborates with the solar industry to establish high quality solar and meteorological measurements. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.
Wilcox, S.; Andreas, A.
DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]
ARM Surface Meteorology Systems Instrument Handbook
The ARM Surface Meteorology Systems consist mainly of conventional in situ sensors that obtain a defined ōcoreö set of measurements. The core set of measurements is: Barometric Pressure (kPa), Temperature (░C), Relative Humidity (%), Arithmetic-Averaged Wind Speed (m/s), Vector-Averaged Wind Speed (m/s), and Vector-Averaged Wind Direction (deg).
Ritsche, MT
Meteorological Observations for Renewable Energy Applications at Site 300
In early October 2010, two Laser and Detection Ranging (LIDAR) units (LIDAR-96 and LIDAR-97), a 3 m tall flux tower, and a 3 m tall meteorological tower were installed in the northern section of Site 300 (Figure 1) as a first step in development of a renewable energy testbed facility. This section of the SMS project is aimed at supporting that effort with continuous maintenance of atmospheric monitoring instruments capable of measuring vertical profiles of wind speed and wind direction at heights encountered by future wind power turbines. In addition, fluxes of energy are monitored to estimate atmospheric mixing and its effects on wind flow properties at turbine rotor disk heights. Together, these measurements are critical for providing an accurate wind resource characterization and for validating LLNL atmospheric prediction codes for future renewable energy projects at Site 300. Accurate, high-resolution meteorological measurements of wind flow in the planetary boundary layer (PBL) and surface-atmosphere energy exchange are required for understanding the properties and quality of available wind power at Site 300. Wind speeds at heights found in a typical wind turbine rotor disk ({approx} 40-140 m) are driven by the synergistic impacts of atmospheric stability, orography, and land-surface characteristics on the mean wind flow in the PBL and related turbulence structures. This section of the report details the maintenance and labor required in FY11 to optimize the meteorological instruments and ensure high accuracy of their measurements. A detailed look at the observations from FY11 is also presented. This portion of the project met the following milestones: Milestone 1: successful maintenance and data collection of LIDAR and flux tower instruments; Milestone 2: successful installation of solar power for the LIDAR units; and Milestone 3: successful implementation of remote data transmission for the LIDAR units.
Wharton, S; Alai, M; Myers, K
The ARM Surface Meteorology Systems consist mainly of conventional in situ sensors that obtain a defined ōcoreö set of measurements. The core set of measurements is: Barometric Pressure (kPa), Temperature (░C), Relative Humidity (%), Arithmetic-Averaged Wind Speed (m/s), Vector-Averaged Wind Speed (m/s), and Vector-Averaged Wind Direction (deg). The sensors that collect the core variables are mounted at the standard heights defined for each variable: Ģ Winds: 10 meters Ģ Temperature and Relative Humidity: 2 meters Ģ Barometric Pressure: 1 meter. Depending upon the geographical location, different models and types of sensors may be used to measure the core variables due to the conditions experienced at those locations. Most sites have additional sensors that measure other variables that are unique to that site or are well suited for the climate of the location but not at others.
62 Bureau of Meteorology Annual Report 201314 Observations and infrastructure
E-Print Network [OSTI]
resources in the taking and recording of observations. It strategically plans, builds and operates improving delivery efficiencies; and ┬Ę facilitating both management and cultural change to ensure continued System Strategy; ┬Ę Observing Network Operations; and ┬Ę Infrastructure Management. The performance of each
Greenslade, Diana
An application of a meteorological data assimilation system to an air quality simulation
The need to calculate air pollutant exposure metrics for longer time periods, i.e., seasonal and annual, has generated a need to conduct long-term simulations using regional-scale Eulerian air quality models. Hourly-resolved meteorological and micro-meteorological fields for an entire year are required as input to the air quality models. In this paper, the authors describe the application of a meteorological data assimilation system to provide high-quality fields to drive a regional air quality model. The process of assimilation blends multiple data sources (large-scale gridded data, surface and upper air observations, satellite imagery, and radar data) into a unified atmospheric representation. The authors have used an assimilation system developed at the Center for the Analysis and Prediction of Storms at the University of Oklahoma. The modeling domain covers most of North America and 1995 was chosen as the simulation year. The data used in the assimilation include the NCAR/NCEP global reanalysis fields combined with North American surface and radiosonde data. The authors will describe modifications made to the assimilation system to enable estimation of a number of air-quality related quantities not normally calculated, such as Monin-Obhukov length and friction velocity. While the system supports a state-of-the-art three-dimensional cloud and hydrometeor field analysis based on background fields, surface observations, satellite, and radar; a simpler approach was developed in this study to estimate cloud fractional coverage based on the gridded relative humidity values.
Moon, D.; Pai, P.
Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. (2013) Phenomenology of Sahelian convection observed in Niamey
Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. (2013) Phenomenology SM. 2013. Phenomenology of Sahelian convection observed in Niamey during the early monsoon. Q. J. R
Guichard, Francoise
Ocean Observing Ocean Observing Systems (OOS)
, national, and global scales. ┬Ę Ocean Observing Systems serve: Fishing industry National security Coastal properties, such as salinity, temperature, and waves Satellite maps of sea surface temperature NATIONAL Integrated Ocean Observing System (IOOS) 11 REGIONAL Systems, including: MANY LOCAL Systems
Schladow, S. Geoffrey
Tonopah Test Range Air Monitoring: CY2012 Meteorological, Radiological, and Airborne Particulate Observations
In 1963, the Atomic Energy Commission (AEC), predecessor to the US Department of Energy (DOE), implemented Operation Roller Coaster on the Tonopah Test Range (TTR) and an adjacent area of the Nevada Test and Training Range (NTTR) (formerly the Nellis Air Force Range (NAFR)). Operation Roller Coaster consisted of four tests in which chemical explosions were detonated in the presence of nuclear devices to assess the dispersal of radionuclides and evaluate the effectiveness of storage structures to contain the ejected radionuclides. These tests resulted in dispersal of plutonium over the ground surface downwind of the test ground zero. Three tests, Clean Slate 1, 2, and 3, were conducted on the TTR in Cactus Flat; the fourth, Double Tracks, was conducted in Stonewall Flat on the NTTR. DOE is working to clean up and close all four sites. Substantial cleaned up has been accomplished at Double Tracks and Clean Slate 1. Cleanup of Clean Slate 2 and 3 is on the DOE planning horizon for some time in the next several years. The Desert Research Institute installed two monitoring stations, number 400 at the Sandia National Laboratories Range Operations Center and number 401 at Clean Slate 3, in 2008 and a third monitoring station, number 402 at Clean Slate 1, in 2011 to measure radiological, meteorological, and dust conditions. The primary objectives of the data collection and analysis effort are to (1) monitor the concentration of radiological parameters in dust particles suspended in air, (2) determine whether winds are re-distributing radionuclides or contaminated soil material, (3) evaluate the controlling meteorological conditions if wind transport is occurring, and (4) measure ancillary radiological, meteorological, and environmental parameters that might provide insight to the above assessments. The following observations are based on data collected during CY2012. The mean annual concentration of gross alpha and gross beta is highest at Station 400 and lowest at Station 401. This difference may be the result of using filter media at Station 400 with a smaller pore size than the media used at the other two stations. Average annual gamma exposure at Station 401 is slightly greater than at Station 400 and 402. Average annual gamma exposure at all three TTR stations are in the upper range to slightly higher than values reported for the CEMP stations surrounding the TTR. At higher wind speeds, the saltation counts are greater at Station 401 than at Station 402 while the suspended particulate concentrations are greater at Station 402 than at Statin 401. Although these observations seem counterintuitive, they are likely the result of differences in the soil material present at the two sites. Station 401 is located on an interfluve elevated above two adjacent drainage channels where the soil surface is likely to be composed of coarser material. Station 402 is located in finer sediments at the playa edge and is also subject to dust from a dirt road only 500 m to the north. During prolonged high wind events, suspended dust concentrations at Station 401 peaked with the initial winds then decreased whereas dust concentrations at Station 402 peaked with each peak in the wind speed. This likely reflects a limited PM10 source that is quickly expended at Station 401 relative to an abundant PM10 source at Station 402. In CY2013, to facilitate comparisons between radiological analyses of collected dust, the filter media at all three stations will be standardized. In addition, a sequence of samples will be collected at Station 400 using both types of filter media to enable development of a mathematical relationship between the results derived from the two filter types. Additionally, having acquired approximately four years of observations at Stations 400 and 401 and a year of observations at Station 402, a period-of-record analysis of the radiological and airborne dust conditions will be undertaken.
Mizell, Steve A; Nikolich, George; Shadel, Craig; McCurdy, Greg; Miller, Julianne J
Tonopah Test Range Air Monitoring: CY2013 Meteorological, Radiological, and Airborne Particulate Observations
In 1963, the U.S. Department of Energy (DOE) (formerly the Atomic Energy Commission [AEC]), implemented Operation Roller Coaster on the Tonopah Test Range (TTR) and an adjacent area of the Nevada Test and Training Range (NTTR) (formerly the Nellis Air Force Range). This test resulted in radionuclide-contaminated soils at Clean Slate I, II, and III. This report documents observations made during on-going monitoring of radiological, meteorological, and dust conditions at stations installed adjacent to Clean Slate I and Clean Slate III and at the TTR Range Operations Control center. The primary objective of the monitoring effort is to determine if winds blowing across the Clean Slate sites are transporting particles of radionuclide-contaminated soils beyond both the physical and administrative boundaries of the sites. Results for the calendar year (CY) 2013 monitoring include: (1) the gross alpha and gross beta values from the monitoring stations are approximately equivalent to the highest values observed during the CY2012 reporting at the surrounding Community Environmental Monitoring Program (CEMP) stations (this was the latest documented data available at the time of this writing); (2) only naturally occurring radionuclides were identified in the gamma spectral analyses; (3) the ambient gamma radiation measurements indicate that the average annual gamma exposure is similar at all three monitoring stations and periodic intervals of increased gamma values appear to be associated with storm fronts passing through the area; and (4) the concentrations of both resuspended dust and saltated sand particles generally increase with increasing wind speed. However, differences in the observed dust concentrations are likely due to differences in the soil characteristics immediately adjacent to the monitoring stations. Neither the resuspended particulate radiological analyses nor the ambient gamma radiation measurements suggest wind transport of radionuclide-contaminated soils.
Mizell, Steve A [DRI; Nikolich, George [DRI; Shadel, Craig [DRI; McCurdy, Greg [DRI; Etyemezian, Vicken [DRI; Miller, Julianne J [DRI
Air Observe System
This manuscript contains a description and basic principles for observing inaccessible areas using low cost, easily deployed equipment. The basic premise is to suspend a tiny video camera at an altitude of 10 - 200 meters over the area to be surveyed. The TV camera supports at altitude by wind or balloon. The technical challenges regard the means by which the camera is suspended. Such a system may be used by military or police forces or by civil authorities for rescue missions or assessment of natural disasters. The method may be further developed for military applications by integrating the surveillance task with deployment of munitions. Key words: air observer, air suspended system, low altitude video observer.
Alexander Bolonkin
and the eddy-covariance system and meteorological station were
and Tchizalamou flux tower sites by Yann Nouvellon Figure 1: Closed-path (Li-6262+ sonic anemometer Young 81000V graduate student : Sally Archibald ........................Page 7 FLUXNET young scientist: Agnes de with the closed-path system, and one month with the two systems, for comparison) #12;Africa surface. Another chal
Meteorological Tables for Determination of Precipitable Water, Temperatures and Pressures Aloft for a Saturated Pseudoadiabatic Atmosphere -- in the Metric System
TR-16 1968 Meteorological Tables for Determination of Precipitable Water, Temperatures and Pressures Aloft for a Saturated Pseudoadiabatic Atmosphere?in the Metric System W.O. Eihle R.J. Powers R.A. Clark...
Eihle, W. O.; Powers, R. J.; Clark, R.A.
Meteorological Monitoring on bikini atoll: system description and data summary (May 2000 - April 2001)
Meteorological data are continuously collected at three sites on Bikini Atoll in support of radioecological research and monitoring programs conducted by the Health and Ecological Assessments Division at the Lawrence Livermore National Laboratory (LLNL). Weather stations were first established on Bikini Atoll in April 1990, and provide information on rainfall, wind speed and direction, air temperature, humidity, and solar radiation. These data and information are used to interpret results of remediation experiments designed to evaluate the effectiveness of potassium fertilizer on reducing the uptake of {sup 137}Cs into locally grown foods. We have also demonstrated that {sup 137}Cs is slowly leached from surface soil by the action of rain water. Long-term meteorological data are crucial to our efforts of developing an understanding of environmental processes controlling the environment loss of {sup 137}Cs in coral atoll soil. In May 2000, older data collection platforms and the DOS-based system that downloaded data from National Oceanic & Atmospheric Administration (NOAA)'s Data Automatic Processing System (DAPS) was decommissioned, and new data loggers, GOES (Geostationary Operational Environmental Satellite) transmitters and antennas were installed. Consequently, new procedures were developed to maintain the field systems, download the data, and reduce and archive the data. This document provides an operational description and status report on the three new meteorological monitoring systems on Bikini Atoll as well as an computational summary of previously recorded data. Included are overviews of procedures for sensor exchange, data recovery and reduction, and specific information about the different sensors. We also provide a description of systems maintenance and trouble shooting activities. This report will be updated on an annual basis.
Gouveia F; Bradsher, R; Brunk, J; Hamilton, T
Meteorological significance of frontal thin-line angel echoes observed by CPS-9 radar
Effects of Vertical Wind-Shear on Convection Cells in the Atmosphere and Ocean 83 86 C. Radar Observations of Benard Cells and the Effects of Vertical Wind-Shear 89 D. Possible Effects of Wind-Shear Modified Convection Cells Exhibited by the Angel... of the Relationship between Wind-shear and Angel Echo Patterns 102 D. Summary of Conclusions REFERENCES APPENDIX 103 105 110 LIST OF FIGURES Figure 1. Surface Nap, 1500C, 10 December 1957 2. PPI Photographs~ 10 December 1957 3. Cold-frontal and Thin...
Miller, Donald Bradford
METEOROLOGICAL Bulletin of the American Meteorological Society
Science Foundation.36 37 #12;2 Capsule Summary1 The Community Earth System Model provides the research for earth system15 studies, making it a true community tool. Here we describe this earth system model, its16 at the above DOI once it is available. ┬® 2013 American Meteorological Society #12;1 The Community Earth System
Operational hydro-meteorological warning and real-time flood forecasting:the Piemonte region case study Hydrology and Earth System Sciences, 9(4), 457466 (2005) EGU
Operational hydro-meteorological warning and real-time flood forecasting:the Piemonte region case study 457 Hydrology and Earth System Sciences, 9(4), 457466 (2005) ┬® EGU Operational hydro forecasting system in the context of the Piemonte Regions hydro-meteorological operational alert procedure
Paris-Sud XI, Universit├® de
A recent study of meteorological conditions around the Pentagon will support development of a system to protect its 25,000+ occupants from chemical, biological, and radiological attack.
of a system to protect its 25,000+ occupants from chemical, biological, and radiological attack. I nFEBRUARY 2007AMERICAN METEOROLOGICAL SOCIETY | #12;of the most likely targets for a future terrorist attack
Knievel, Jason Clark
Improved Meteorological Input for Atmospheric Release Decision support Systems and an Integrated LES Modeling System for Atmospheric Dispersion of Toxic Agents: Homeland Security Applications
When hazardous material is accidently or intentionally released into the atmosphere, emergency response organizations look to decision support systems (DSSs) to translate contaminant information provided by atmospheric models into effective decisions to protect the public and emergency responders and to mitigate subsequent consequences. The Department of Homeland Security (DHS)-led Interagency Modeling and Atmospheric Assessment Center (IMAAC) is one of the primary DSSs utilized by emergency management organizations. IMAAC is responsible for providing 'a single piont for the coordination and dissemination of Federal dispersion modeling and hazard prediction products that represent the Federal position' during actual or potential incidents under the National Response Plan. The Department of Energy's (DOE) National Atmospheric Release Advisory Center (NARAC), locatec at the Lawrence Livermore National Laboratory (LLNL), serves as the primary operations center of the IMAAC. A key component of atmospheric release decision support systems is meteorological information - models and data of winds, turbulence, and other atmospheric boundary-layer parameters. The accuracy of contaminant predictions is strongly dependent on the quality of this information. Therefore, the effectiveness of DSSs can be enhanced by improving the meteorological options available to drive atmospheric transport and fate models. The overall goal of this project was to develop and evaluate new meteorological modeling capabilities for DSSs based on the use of NASA Earth-science data sets in order to enhance the atmospheric-hazard information provided to emergency managers and responders. The final report describes the LLNL contributions to this multi-institutional effort. LLNL developed an approach to utilize NCAR meteorological predictions using NASA MODIS data for the New York City (NYC) region and demonstrated the potential impact of the use of different data sources and data parameterizations on IMAAC/NARAC fate and transport predictions. A case study involving coastal sea breeze circulation patterns in the NYC region was used to investigate the sensitivity of atmospheric dispersion results on the source of three-dimensional wind field data.
Arnold, E; Simpson, M; Larsen, S; Gash, J; Aluzzi, F; Lundquist, J; Sugiyama, G
Aircraft as a meteorological sensor
Meteorological Institute 2 | The aircraft as a meteorological sensor Photo cover: A KLM Airbus A330-200 landsAircraft as a meteorological sensor Using Mode-S Enhanced Surveillance data to derive upper air Meteorological Institute 3 | The aircraft as a meteorological sensor Aircraft as a meteorological sensor Using
Haak, Hein
Time changes in a subtropical cloud and weather system as revealed by meteorological satellite data
United States. The 700-mb humidity chart in Figure 4 shows two very significant features. A narrow band of moist air 2 ~F80 s~oeo? + RO 60 45+M &1 f ) I I. J ~ S gD 40 20 'T fl i I pe ys p C 44 p I f I S+ lt 1 50- sS I'x gO 20 I C... TIROS I photographs as well as con- ventional analysis tools. A zone of maximum relative humidity was noted on the warm side of the axis of maxi- mum winds between the 700-mb and 400-mb levels. The cloud system developed from a poorly organized cloud...
Randerson, Darryl
The web-PLOP observation prioritisation system
We present a description of the automated system used by RoboNet to prioritise follow up observations of microlensing events to search for planets. The system keeps an up-to-date record of all public data from OGLE and MOA together with any existing RoboNet data and produces new PSPL fits whenever new data arrives. It then uses these fits to predict the current or future magnitudes of events, and selects those to observe which will maximise the probability of detecting planets for a given telescope and observing time. The system drives the RoboNet telescopes automatically based on these priorities, but it is also designed to be used interactively by human observers. The prioritisation options, such as telescope/instrument parameters, observing conditions and available time can all be controlled via a web-form, and the output target list can also be customised and sorted to show the parameters that the user desires. The interactive interface is available at http://www.artemis-uk.org/web-PLOP/
Colin Snodgrass; Yiannis Tsapras; Rachel Street; Daniel Bramich; Keith Horne; Martin Dominik; Alasdair Allan
NASA Surface meteorology and Solar Energy: Methodology
1 NASA Surface meteorology and Solar Energy: Methodology Energy Technology (RET) projects. These climatological profiles are used for designing systems that have for implementing RETs, there are inherent problems in using them for resource assessment. Ground measurement
Firestone, Jeremy
METEOROLOGICAL Journal of Climate
AMERICAN METEOROLOGICAL SOCIETY Journal of Climate EARLY ONLINE RELEASE This is a preliminary PDF it is available. ® 201 American Meteorological Society1 #12;Sun et al. climate downscaling of the Australian currents 1 Marine downscaling of a future climate scenario for Australian boundary currents Chaojiao Sun
Feng, Ming
Common Cyber Security Vulnerabilities Observed in Control System...
Broader source: Energy.gov (indexed) [DOE]
Common Cyber Security Vulnerabilities Observed in Control System Assessments by the INL NSTB Program Common Cyber Security Vulnerabilities Observed in Control System Assessments by...
Description of the RDCDS Meteorological Component
This report provides a detailed description of the Rapidly Deployable Chemical Defense System (RDCDS) Meteorological Component. The Meteorological Component includes four surface meteorological stations, miniSODAR, laptop computers, and communications equipment. This report describes the equipment that is used, explains the operation of the network, and gives instructions for setting up the Component and replacing defective parts. A detailed description of operation and use of the individual sensors, including the data loggers is not covered in the current document, and the interested reader should refer to the manufacturerÆs documentation.
Pekour, Mikhail S.; Berg, Larry K.
Observing System Simulation Experiments (OSSEs) for the Mid-Columbia Basin
The overall goal of this multi-phased research project known as WindSENSE is to develop an observation system deployment strategy that would improve wind power generation forecasts. The objective of the deployment strategy is to produce the maximum benefit for 1- to 6-hour ahead forecasts of wind speed at hub-height ({approx}80 m). In this phase of the project the focus is on the Mid-Columbia Basin region, which encompasses the Bonneville Power Administration (BPA) wind generation area (Figure 1) that includes the Klondike, Stateline, and Hopkins Ridge wind plants. There are two tasks in the current project effort designed to validate the Ensemble Sensitivity Analysis (ESA) observational system deployment approach in order to move closer to the overall goal: (1) Perform an Observing System Experiment (OSE) using a data denial approach. The results of this task are presented in a separate report. (2) Conduct a set of Observing System Simulation Experiments (OSSE) for the Mid-Colombia basin region. This report presents the results of the OSSE task. The specific objective is to test strategies for future deployment of observing systems in order to suggest the best and most efficient ways to improve wind forecasting at BPA wind farm locations. OSSEs have been used for many years in meteorology to evaluate the potential impact of proposed observing systems, determine tradeoffs in instrument design, and study the most effective data assimilation methodologies to incorporate the new observations into numerical weather prediction (NWP) models (Atlas 1997; Lord 1997). For this project, a series of OSSEs will allow consideration of the impact of new observing systems of various types and in various locations.
Zack, J; Natenberg, E J; Knowe, G V; Waight, K; Manobianco, J; Hanley, D; Kamath, C
Proposed Solution:Proposed Solution: The Autonomous Networked Aquatic Microbial Observing SystemThe Autonomous Networked Aquatic Microbial Observing System Networked Aquatic Microbial Observing Systems: an overviewNetworked Aquatic Microbial Observing Sys
Proposed Solution:Proposed Solution: The Autonomous Networked Aquatic Microbial Observing SystemThe Autonomous Networked Aquatic Microbial Observing System Networked Aquatic Microbial Observing Systems Ocean Research Goals ┬Ę Development of autonomous networks of heterogeneous sensors to monitor and sample
Smith, Ryan N.
Educational Innovations in Radar Meteorology Prof. S. A. Rutledge
of the most memorable aspects of your graduate level education in radar meteorology? 2. Briefly describe and integrating the radar measurements with other observations #12;NCAR CPNCAR CP--3 and CP3 and CP--3 mobile C3Educational Innovations in Radar Meteorology Prof. S. A. Rutledge Department of Atmospheric Science
Rutledge, Steven
Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. 140: 500516, January 2014 B Phenomenology of Sahelian convection observed in Niamey
2014 B Phenomenology of Sahelian convection observed in Niamey during the early monsoon C. Dionea Citation: Dione C, Lothon M, Badiane D, Campistron B, Couvreux F, Guichard F, Sall SM. 2014. Phenomenology
) transition of the research results into sustained operations; and 3) management ap- plications in the U, and effective data integration and dissemination. Efficient management of sustained observing sys- tem, and the management and strategic planning applications at CPO. The final discussion contains some concluding remarks
, the statistical estimates of the differences between the various air-sea heat flux products tend to be largest. ┬® 201 American Meteorological Society1 #12;A comparison of Southern Ocean air-sea buoyancy flux from an ocean state estimate with five other products Ivana Cerovecki, Lynne D. Talley and Matthew R. Mazloff
Talley, Lynne D.
Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. 00: 117 (0000) Impact of Non-Smooth Observation Operators on Variational
) Impact of Non-Smooth Observation Operators on Variational and Sequential Data Assimilation for a Limited-mail: email@example.com We investigate the issue of variational and sequential data assimilation with non & Overton, 2008) and (Karmitsa, 2007), we investigate minimization of the data assimilation cost functional
Navon, Michael
Development and validation of standard classroom observation systems for school practitioners: Ecobehavioral Assessment Systems Software (EBASS)
The development and validation of Ecobehavioral Assessment Systems Software (EBASS), a computer-assisted observational system for school practitioners, are described. Portable computers, used to support observational ...
Greenwood, Charles R.; Carta, Judith J.; Kamps, Debra; Terry, Barbara; Delquadri, Joseph
Letter of transmittal Office of the Director of Meteorology
............................................ 138 South Australia....................................... 140 Western Australia Melbourne VIC 3001 Australia Australia's National Meteorological Service 700 Collins Street Docklands VIC continued its work of observing, analysing and predicting Australia's weather, climate, oceans and water
.................................................... 92 South Australia ............................................... 94 Western Australia Melbourne VIC 3001 Australia Australia's National Meteorological Service 700 Collins Street Docklands VIC continued its work of observing, analysing and predicting Australia's weather, climate, oceans, water
Analysis of Spatial Performance of Meteorological Drought Indices
by policy makers and the general public. This study analyzes the spatial performance of interpolation methods for meteorological drought indices in the United States based on data from the Co-operative Observer Network (COOP) and United States Historical...
Patil, Sandeep 1986-
Seismic Observation Systems in Nagoya University and Publication of Data
Seismic Observation Systems in Nagoya University and Publication of Data Nobuo Fukuwa,a) Jun Tobita,b) and Hiroaki Kojimac) This paper reports the current situation of the seismic monitoring program conducted by Nagoya University. First, the system for observing seismic ground motion in the Tokai Region is described
Southern California, University of
Automated Surface Observing System (ASOS) General System Description
Generator System $ 4,300 135 $ 580,500 Hydrogen Fuel Cell $ 5,500 135 $ 742,500 4 #12;Life Cycle Cost;ACU Option Comparison Battery Bank to power Hydrogen Fuel Engine Generator the existing UPS Cell at 884 sites nationwide, normally at airports ┬Ę System has two distinct subsystems: Field installed
Integrating spacecraft and aircraft in Earth Observation System architectures
The Global Earth Observation System (GEOS) is the essential data gathering network that enables the advancement of Earth science. In recent years, efforts have been made to understand the major GEOS architectural tradeoffs. ...
Suarez, Brandon H
Meteorological database for the United States
to Indoor Air Meteorological Database for the United StatesUC-402 Meteorological Database for the United States M.G.Abstract A meteorological database has been developed to aid
Apte, M.G.
INTEGRATING THE OCEAN OBSERVING SYSTEM: MOBILE PLATFORMS Dean Roemmich(1)
/AOML, 4301 Rickenbacker Causeway, Miami FL 33149 USA, Email: email@example.com (12) Center for Ocean, including oxygen, chlorophyll-A, and particulate organic carbon, and coordination with shipboard and moored. The observing system infrastructure must evolve in parallel with the system's scope and complexity. Expanded
Circle criterion observer for a compression system Bjrnar Bhagen
.firstname.lastname@example.com Abstract-- Observers for a compression system using turbo compressors are derived for a model that captures speed. Results are validated by simulations. I. MOTIVATION Compression systems using turbo compressors, centrifugal or axial, are exposed to the phenomenons of surge and rotating stall. Surge is an axisymmtrical
Gravdahl, Jan Tommy
Controllers with Minimal Observation Power (Application to Timed Systems)
Controllers with Minimal Observation Power (Application to Timed Systems) Peter Bulychev1 , Franck is the computation of a subset of predicates sufficient for control and whose cost is minimal. Our solution avoids, Danish-Chinese Center for Cyber Physical Systems (IDEA4CPS) and VKR Center of Excellence MT-LAB. #12;The
David, Alexandre
Internal and Boundary Observability Estimates for the Heterogeneous Maxwell's System
Observability estimates for Maxwell's system with variable coefficients are established using the differential geometry method recently developed for scalar wave equations.The main tool is that Maxwell's system is reducible to a perturbed vectorial wave equation with a decoupled principal part.
Nicaise, Serge [Universite de Valenciennes et du Hainaut Cambresis, MACS, Institut des Sciences et Techniques de Valenciennes, 59313 Valenciennes Cedex 9 (France)], E-mail: firstname.lastname@example.com; Pignotti, Cristina [Dipartimento di Matematica Pura e Applicata, Universita di L'Aquila, Via Vetoio, Loc. Coppito, 67010 L'Aquila (Italy)], E-mail: email@example.com
A cooperative control algorithm for camera based observational systems.
Over the last several years, there has been considerable growth in camera based observation systems for a variety of safety, scientific, and recreational applications. In order to improve the effectiveness of these systems, we frequently desire the ability to increase the number of observed objects, but solving this problem is not as simple as adding more cameras. Quite often, there are economic or physical restrictions that prevent us from adding additional cameras to the system. As a result, we require methods that coordinate the tracking of objects between multiple cameras in an optimal way. In order to accomplish this goal, we present a new cooperative control algorithm for a camera based observational system. Specifically, we present a receding horizon control where we model the underlying optimal control problem as a mixed integer linear program. The benefit of this design is that we can coordinate the actions between each camera while simultaneously respecting its kinematics. In addition, we further improve the quality of our solution by coupling our algorithm with a Kalman filter. Through this integration, we not only add a predictive component to our control, but we use the uncertainty estimates provided by the filter to encourage the system to periodically observe any outliers in the observed area. This combined approach allows us to intelligently observe the entire region of interest in an effective and thorough manner.
Young, Joseph G.
Time evolution of observable properties of parametrized systems
A short review of some recent work on the problem of time and of observables for the reparametrization invariant systems is given. A talk presented at the Second Meeting on Constraint Dynamics and Quantum Gravity at Santa Marguerita Ligure, September 17--21 1996.
P. Hajicek
DESIGN OF THE GREAT LAKES OBSERVING SYSTEM ENTERPRISE ARCHITECTURE T.J. Dekker1 , J.V. DePinto1 , S: email@example.com 2 NOAA Great Lakes Environmental Research Lab, Ann Arbor, Michigan, USA, email: steve, collaborative, and consensus-based enterprise architecture design process was conducted under the direction
Programperformance BUREAU OF METEOROLOGY ANNUAL REPORT 201213 121
and reliably provide weather, climate, ocean and water products and services. Highly resilient and reliable's supercomputer, and maintaining data communication links to observing sites, often in remote locations or extreme of meteorological and related data from the observational network to the Central Computing Facility and Regional
Algorithms, Protocols & Systems for Remote Observation Using Networked Robotic Cameras
assist in waste cleanup using Point- and-Direct (PAD) commands. Users point to cleanup locations in a shared image and a robot excavates each location in turn. Recent developments in MOSR systems can be found in [26,27]. In [27] Goldberg et al. propose...ALGORITHMS, PROTOCOLS AND SYSTEMS FOR REMOTE OBSERVATION USING NETWORKED ROBOTIC CAMERAS A Dissertation by NI QIN Submitted to the O?ce of Graduate Studies of Texas A&M University in partial fulflllment of the requirements for the degree of DOCTOR...
Qin, Ni
Digital meteorological radar data compared with digital infrared data from a geostationary meteorological satellite
OF CONTENTS Page ABSTRACT. ACKNOWLEDGMENTS. DEDICATION . iv vi TABLE OF CONTENTS . vii LIST OF TABLES. IX LIST OF FIGURES . LIST OF ACRONYMS CHAPTER xii I. INTRODUCTION 1. The Need for This Investigation 2. Present Status of Research Relating... to This Investigation 3. Objectives of the Investigation 4. Techniques and Scope of the Investigation. II. METEOROLOGICAL RADAR DATA . 10 1. Basic Radar Theory . 2. Earth Curvature Correction . 3. The TAMU Weather Radar System. 4. Data Reduction and Display 10...
Henderson, Rodney Stuart
METEOROLOGICAL Monthly Weather Review
the lofting of supercooled water above the melting level, and an enhanced LDR "cap" above the column implied warm-cloud depths, increased ice mass observed just above the melting level, and a narrower with precipitation-sized ice extending to 15 km. In addition, the presence of ZDR columns in these cells indicated
Computational methods in wind power meteorology
Computational methods in wind power meteorology Bo Hoffmann J├Ėrgensen, S├Ėren Ott, Niels N├Ėrmark, Jakob Mann and Jake Badger Title: Computational methods in wind power meteorology Department: Wind in connection with the project called Computational meth- ods in wind power meteorology which was supported
┬Ł Present Average Climate System Behavior (14 lectures) History; Vision of Victor Starr; Global Budgets of Angular Momentum, Energy, Water Vapor; Regional Water Budget; Meridional Ocean Heat Transport 3 and Indices: Diagnostic Tools (wind stress curl, velocity potential, outgoing LW radiation); ENSO cycles
Droegemeier, Kelvin K.
Observational Techniques for Detecting Planets in Binary Systems
Searches for planets in close binary systems explore the degree to which stellar multiplicity inhibits or promotes planet formation. There is a degeneracy between planet formation models when only systems with single stars are studied--several mechanisms appear to be able to produce such a final result. This degeneracy is lifted by searching for planets in binary systems; the resulting detections (or evidence of non-existence) of planets in binaries isolates which models may contribute to how planets form in nature. In this chapter, we consider observational efforts to detect planetary companions to binary stars in two types of hierarchical planet-binary configurations: first ``S-type'' planets which orbit just one of the stars, with the binary period being much longer than the planet's; second, ``P-type'' or circumbinary planets, where the planet simultaneously orbits both stars, and the planetary orbital period is much longer than that of the binary. The S-type planet finding techniques are different for binaries that can or cannot be spatially resolved. For wider systems, techniques reviewed include dualstar interferometric differential astrometry and precision radial velocities. Alternatively, unresolved binaries can be studied using modified dualstar "PHASES-style" differential astrometry or a modification of the radial velocity technique for composite spectra. Should a fortunately aligned--but still long period--binary be found, eclipse timing can also reveal the presence of S-type planets. Methods for detecting P-type planets include the composite-spectra variant of the radial velocity technique and eclipse timing.
Matthew W. Muterspaugh; Maciej Konacki; Benjamin F. Lane; Eric Pfahl
Observability Criteria and Estimator Design for Stochastic Linear Hybrid Systems
. Alessandri and Coletta [5] proposed a Luenberger observer design methodology for deterministic linear hybrid
Gummadi, Ramakrishna
42 Bureau of Meteorology Annual Report 201314 Environment and research
and hydrology to build world-class systems and prediction services to support decision-makers in government services, and energy and services sectors; Ę Australian, State and local governments and their agencies; Ę international organisations including the World Meteorological Organization and Pacific Island National
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the ContributionsArmsSpeedingSpeedingUnder Well-ControlledObservation ofof Multiple
METR 3223: Physical Meteorology II: Cloud Physics, Atmospheric Electricity and Optics
METR 3223: Physical Meteorology II: Cloud Physics, Atmospheric Electricity and Optics CLASS: Monday as atmospheric electricity and optics. Specific topics that will be covered are as follows: Cloud physics: Review Observation studies Atmospheric electricity: Electrostatics Electromagnetic wave Thunderstorm charging
11971197AUGUST 2007AMERICAN METEOROLOGICAL SOCIETY | The Global Ocean Data Assimilation
and in situ observations, for NWP, ocean forecasting, ecosystem applications, and climate research. BY C forecasting, military and defence operations, validating or forcing ocean and atmospheric models, ecosystem11971197AUGUST 2007AMERICAN METEOROLOGICAL SOCIETY | The Global Ocean Data Assimilation Experiment
Merchant, Chris
Technical Work Plan For: Meteorological Monitoring Data Analysis
The meteorological monitoring and analysis program has five objectives. (1) Acquire qualified meteorological data from YMP meteorological monitoring network using appropriate controls on measuring and test equipment. Because this activity is monitoring (i.e., recording naturally occurring events) pre-test predictions are not applicable. All work will be completed in accordance with U.S. Department of Energy (DOE) Office of Repository Development (ORD) administrative procedures and Bechtel SAIC Co., LLC (BSC) line procedures. The meteorological monitoring program includes measuring and test equipment calibrations, operational checks, preventive and corrective maintenance, and data collection. (2) Process the raw monitoring data collected in the field and submit technically reviewed, traceable data to the Technical Data Management System (TDMS) and the Records Processing Center. (3) Develop analyses or calculations to provide information to data requesters and provide data sets as requested. (4) Provide precipitation amounts to Site Operations to support requirements to perform inspections in the Stormwater Pollution Prevention Plan (implemented in LP-OM-050Q-BSC) following storm events of greater than 0.5 inches. The program also provides meteorological data during extreme weather conditions (e.g., high winds, rainstorms, etc.) to support decisions regarding worker safety. (5) Collect samples of precipitation for chemical and isotopic analysis by the United States Geological Survey (USGS). The BSC ES&H Environmental Compliance organization is responsible for performing this work. Data from calendar-year periods are submitted to the TDMS to provide YMP users with qualified meteorological data for scientific modeling and analyses, engineering designs of surface facilities, performance assessment analyses, and operational safety issues.
R. Green
Estimation of the WECC System Inertia Using Observed Frequency Transients
Computer models being developed to understand the interaction between demand-response technology, power system deregulation and market transformation depend in part on understanding the relationship between system frequency and load-control. Frequency, load, and plant outage events data collected over the last several years have permitted analysis to determine the Western Electricity Coordination Council (WECC) system's inertia during each event. This data was used to evaluate the relationship of system inertia to total load, which is used to model system response to load curtailment programs in next generation power system simulations.
David P. Chassin; Zhenyu Huang; Matthew K. Donnelly; Candee Hassler; Enrique Ramirez; Cody Ray
Satellite Meteorology and Climatology Division Roadmap
Satellite Meteorology and Climatology Division Roadmap NOAA NESDIS Center for Satellite Applications and Research #12;SMCD Roadmap 2 NOAA/NESDIS/STAR Satellite Meteorology and Climatology Division Roadmap September 2005 NOAA Science Center, 5200 Auth Road, Room 712, Camp Springs, MD 20746 #12;SMCD
Kuligowski, Bob
Solar Radiation and Meteorological Data Support
Solar Radiation and Meteorological Data Support for the Long Island Solar Farm and NSERCand NSERC-9 2011March 8 9, 2011 #12;LISF Solar Radiation and Meteorological Sensor Network ┬Ę┬Ę Technology Needs on intermittent source of solar radiationintermittent source of solar radiation #12;LISF Solar Radiation
Homes, Christopher C.
Estimation of WECC System Inertia Using Observed Frequency Transients
As demand for electricity in the western United States increases, stresses upon the aging power grid are intensifying. Computer models based on complex mathematical relationships are being developed to assist in understanding the impact of deregulation and market transformation. Frequency, load, and plant outage events data collected over the last several years. Analysis of these events was performed to determine frequency deviation and the systems inertial constant (M) during each event. Utilizing a theoretical relationship that relates system inertia to power loss, M was calculated for 157 events. The relationship of M to system wide load was then examined.
Chassin, David P.; Huang, Zhenyu; Donnelly, Matt K.; Hassler, Candee A.; Ramirez, Enrique; Ray, Cody W.
Extreme hydro-meteorological events and their probabilities
Extreme hydro-meteorological events and their probabilities Jules Beersma #12;Promotor: Prof. dr. A Onderzoekschool (BBOS) #12;Extreme hydro-meteorological events and their probabilities Extreme hydro
Beersma, Jules
Recycling of quantum information: Multiple observations of quantum systems
Given a finite number of copies of an unknown qubit state that have already been measured optimally, can one still extract any information about the original unknown state? We give a positive answer to this question and quantify the information obtainable by a given observer as a function of the number of copies in the ensemble, and of the number of independent observers that, one after the other, have independently measured the same ensemble of qubits before him. The optimality of the protocol is proven and extensions to other states and encodings are also studied. According to the general lore, the state after a measurement has no information about the state before the measurement. Our results manifestly show that this statement has to be taken with a grain of salt, specially in situations where the quantum states encode confidential information.
Peter Rapcan; John Calsamiglia; Ramon Munoz-Tapia; Emilio Bagan; Vladimir Buzek
Simulations of Solar System observations in alternative theories of gravity
In this communication, we focus on the possibility to test General Relativity (GR) with radioscience experiments. We present simulations of observables performed in alternative theories of gravity using a software that simulates Range/Doppler signals directly from the space time metric. This software allows one to get the order of magnitude and the signature of the modifications induced by an alternative theory of gravity on radioscience signals. As examples, we present some simulations for the Cassini mission in Post-Einsteinian gravity (PEG) and with Standard Model Extension (SME).
A. Hees; B. Lamine; S. Reynaud; M. -T. Jaekel; C. Le Poncin-Lafitte; V. Lainey; A. F³zfa; J. -M. Courty; V. Dehant; P. Wolf
Automated Surface Observing System: Standby Power Options | Department of
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: Top Five EERE BlogAttachmentFlash2011-21 AuditInsulated Cladding Systems
Common Cyber Security Vulnerabilities Observed in Control System
Office of Environmental Management (EM)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power Systems EngineeringDepartmentSmart Grid RFI: AddressingEnergy
OBSERVER DESIGN FOR NONLINEAR SYSTEMS BY USING INPUT-TO-STATE STABILITY A. Alessandri Abstract by solving LMI problems [18]. A. Alessandri is with the Institute of Intelligent Systems for Automation
Sontag, Eduardo
A13G-0330: Evaluation of 3-dimensional winds measured by the Aircraft Integrated Meteorological Measurement System (AIMMS) Christopher G Kruse, David J Delene, and Cedric Grainger, University of North Dakota (firstname.lastname@example.com)
A13G-0330: Evaluation of 3-dimensional winds measured by the Aircraft Integrated Meteorological, and IMU to derive the winds. The IMU and CPU were mounted in the cabin, the ADP was mounted under The time intervals and mean magnitude of vertical wind during the straight and level and porpoise maneuvers
Delene, David J.
A climate sensitivity estimate using Bayesian fusion of instrumental observations and an Earth System model
sensitivity estimate using Bayesian fusion of instrumental observations and an Earth System model, J. Geophys System model Roman Olson,1 Ryan Sriver,1 Marlos Goes,2,3 Nathan M. Urban,4,5 H. Damon Matthews,6 MuraliA climate sensitivity estimate using Bayesian fusion of instrumental observations and an Earth
A nonlinear observer to estimate unknown parameters during the synchronization of chaotic systems
This paper proposes an Extended-Kalman-Filter-like observer for parameter estimation during synchronization of chaotic systems. The exponential stability of the observer is guaranteed by a persistent excitation condition. This approach is shown to be suitable for various classical chaotic systems and several simulations are presented accordingly.
L. Torres
Development and Demonstration of a Relocatable Ocean OSSE System: Optimizing Ocean Observations for Hurricane Forecast
forecasts for individual storms and improved seasonal forecast of the ocean thermal energy availableDevelopment and Demonstration of a Relocatable Ocean OSSE System: Optimizing Ocean Observations in the Gulf of Mexico is being extended to provide NOAA the ability to evaluate new ocean observing systems
Towards a General Theory of Extremes for Observables of Chaotic Dynamical Systems Valerio Lucarini,
Towards a General Theory of Extremes for Observables of Chaotic Dynamical Systems Valerio Lucarini the geometrical properties of a chaotic dynamical system and the distribution of extreme values. We show that the extremes of so-called physical observables are distributed according to the classical generalised Pareto
CESM Community Earth System Model MODEL Meteorological
) Ł Anthropogenic: POET, with REAS over Asia (time-varying for 1997-2010; 1997 used for 1992-1996). Ł Biomass. Ł Biogenic, soil, ocean, volcano: POET, GEIA, etc. as described in Emmons et al., 2010. Emissions in trop
E-Print Network 3.0 - applied meteorology unit Sample Search...
2005 Meteorology applied Summary: ACPD 5, 7903-7927, 2005 Meteorology applied to urban air pollution problems B. Fisher et al. Title... and Physics Discussions Meteorology...
Meteorological aspects of siting large wind turbines
This report, which focuses on the meteorological aspects of siting large wind turbines (turbines with a rated output exceeding 100 kW), has four main goals. The first is to outline the elements of a siting strategy that will identify the most favorable wind energy sites in a region and that will provide sufficient wind data to make responsible economic evaluations of the site wind resource possible. The second is to critique and summarize siting techniques that were studied in the Department of Energy (DOE) Wind Energy Program. The third goal is to educate utility technical personnel, engineering consultants, and meteorological consultants (who may have not yet undertaken wind energy consulting) on meteorological phenomena relevant to wind turbine siting in order to enhance dialogues between these groups. The fourth goal is to minimize the chances of failure of early siting programs due to insufficient understanding of wind behavior.
Hiester, T.R.; Pennell, W.T.
Meteorological Support at the Savanna River Site
The Department of Energy (DOE) operates many nuclear facilities on large complexes across the United States in support of national defense. The operation of these many and varied facilities and processes require meteorological support for many purposes, including: for routine operations, to respond to severe weather events, such as lightning, tornadoes and hurricanes, to support the emergency response functions in the event of a release of materials to the environment, for engineering baseline and safety documentation, as well as hazards assessments etc. This paper describes a program of meteorological support to the Savannah River Site, a DOE complex located in South Carolina.
Addis, Robert P.
A Search for Additional Planets in the Nasa Epoxi Observations of the Exoplanet System Gj 436
We present time series photometry of the M dwarf transiting exoplanet system GJ 436 obtained with the Extrasolar Planet Observation and Characterization (EPOCh) component of the NASA EPOXI mission. We conduct a search of ...
Seager, Sara
Thermal Energy Conversion (OTEC) site off the south coast of Oah'u as well as the circulation of Mamala analyses of the observing systems were conducted at the outflow plume depth of a potential pilot Ocean
Luther, Douglas S.
Rank Tests for the Observability of Discrete-Time Jump Linear Systems with Inputs
Rank Tests for the Observability of Discrete-Time Jump Linear Systems with Inputs Ehsan Elhamifar of rank tests on the parameters of the JLS when the discrete state sequence is arbitrary. Our key verify observ- ability by checking a number of rank tests that is only quadratic in the number
Direct observations of nitric oxide produced by energetic electron precipitation in1 to the Antarctic middle atmosphere2
Observation, Finnish Meteorological Institute, Helsinki, Finland.11 5 Max Planck Institut f├╝r Solar System (EEP) from the Earth's magnetosphere than by solar protons [Randall et al.,43 2005]. However, it is unclear which electron energy range is most important for44 stratospheric chemistry. At auroral
Otago, University of
OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy
OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy Varick L. Erickson, Miguel Á & control General Terms Algorithms, Machine Learning, Measurement Keywords Occupancy, HVAC, Ventilation for heating, ventilation, and air-conditioning (HVAC) systems[2]. Studies suggest that 15% to 25% of HVAC
Carreira-Perpi├▒├Īn, Miguel ├ü.
Stochastic Modeling and Optimization for Robust Power Management in a Partially Observable System
or hard disk. The power management hardware/software monitors the state transition in the systemStochastic Modeling and Optimization for Robust Power Management in a Partially Observable System As the hardware and software complexity grows, it is unlikely for the power management hardware/software to have
Qiu, Qinru
2 Bureau of Meteorology Annual Report 201314 Dr Rob Vertessy
OF METEOROLOGY #12;3Bureau of Meteorology Annual Report 2013┬Ł14 1 Overview Review by the Director | IntroductionOverview #12;2 Bureau of Meteorology Annual Report 2013┬Ł14 Dr Rob Vertessy DIRECTOR, energy and transport sectors as well as the general community. We also trialled a thunderstorm tracker
Observing trajectories with weak measurements in quantum systems in the semiclassical regime
We propose a scheme allowing to observe the evolution of a quantum system in the semiclassical regime along the paths generated by the propagator. The scheme relies on performing consecutive weak measurements of the position. We show how weak trajectories" can be extracted from the pointers of a series of measurement devices having weakly interacted with the system. The properties of these "weak trajectories" are investigated and illustrated in the case of a time-dependent model system.
A. Matzkin
E-Print Network 3.0 - air medical meteorology Sample Search Results
institutes Disciplines Systemanalysis science Medical science Statistics Meteorology... - Air pollution - CO2 costs - Climate + meteorology Base-line definition: Geographical...
METR 3223: Physical Meteorology II: Cloud Physics, Atmospheric Electricity and Optics CLASS: Monday of the physical states and processes of clouds and precipitation as well as atmospheric electricity and optics and results Radar observation and estimation Atmospheric electricity: Electrostatics Electromagnetic wave
Accurately Estimating the State of a Geophysical System with Sparse Observations: Predicting the Weather
Utilizing the information in observations of a complex system to make accurate predictions through a quantitative model when observations are completed at time $T$, requires an accurate estimate of the full state of the model at time $T$. When the number of measurements $L$ at each observation time within the observation window is larger than a sufficient minimum value $L_s$, the impediments in the estimation procedure are removed. As the number of available observations is typically such that $L \\ll L_s$, additional information from the observations must be presented to the model. We show how, using the time delays of the measurements at each observation time, one can augment the information transferred from the data to the model, removing the impediments to accurate estimation and permitting dependable prediction. We do this in a core geophysical fluid dynamics model, the shallow water equations, at the heart of numerical weather prediction. The method is quite general, however, and can be utilized in the analysis of a broad spectrum of complex systems where measurements are sparse. When the model of the complex system has errors, the method still enables accurate estimation of the state of the model and thus evaluation of the model errors in a manner separated from uncertainties in the data assimilation procedure.
Zhe An; Daniel Rey; Henry D. I. Abarbanel
Use of Advanced Meteorological Model Output for Coastal Ocean Modeling in Puget Sound
It is a great challenge to specify meteorological forcing in estuarine and coastal circulation modeling using observed data because of the lack of complete datasets. As a result of this limitation, water temperature is often not simulated in estuarine and coastal modeling, with the assumption that density-induced currents are generally dominated by salinity gradients. However, in many situations, temperature gradients could be sufficiently large to influence the baroclinic motion. In this paper, we present an approach to simulate water temperature using outputs from advanced meteorological models. This modeling approach was applied to simulate annual variations of water temperatures of Puget Sound, a fjordal estuary in the Pacific Northwest of USA. Meteorological parameters from North American Region Re-analysis (NARR) model outputs were evaluated with comparisons to observed data at real-time meteorological stations. Model results demonstrated that NARR outputs can be used to drive coastal ocean models for realistic simulations of long-term water-temperature distributions in Puget Sound. Model results indicated that the net flux from NARR can be further improved with the additional information from real-time observations.
Yang, Zhaoqing; Khangaonkar, Tarang; Wang, Taiping
Meteorological services annual data report for 2012
This document presents the meteorological data collected at Brookhaven National Laboratory (BNL) by Meteorological Services (Met Services) for the calendar year 2012. The purpose is to publicize the data sets available to emergency personnel, researchers and facility operations. Met services has been collecting data at BNL since 1949. Data from 1994 to the present is available in digital format. Data is presented in monthly plots of one-minute data. This allows the reader the ability to peruse the data for trends or anomalies that may be of interest to them. Full data sets are available to BNL personnel and to a limited degree outside researchers. The full data sets allow plotting the data on expanded time scales to obtain greater details (e.g., daily solar variability, inversions, etc.).
Heiser J.; Smith, S.
MAGIC observations of MWC 656, the only known Be/BH system
Context: MWC 656 has recently been established as the first observationally detected high-mass X-ray binary system containing a Be star and a black hole (BH). The system has been associated with a gamma-ray flaring event detected by the AGILE satellite in July 2010. Aims: Our aim is to evaluate if the MWC 656 gamma-ray emission extends to very high energy (VHE > 100 GeV) gamma rays. Methods. We have observed MWC 656 with the MAGIC telescopes for $\\sim$23 hours during two observation periods: between May and June 2012 and June 2013. During the last period, observations were performed contemporaneously with X-ray (XMM-Newton) and optical (STELLA) instruments. Results: We have not detected the MWC 656 binary system at TeV energies with the MAGIC Telescopes in either of the two campaigns carried out. Upper limits (ULs) to the integral flux above 300 GeV have been set, as well as differential ULs at a level of $\\sim$5\\% of the Crab Nebula flux. The results obtained from the MAGIC observations do not support persis...
Observers for Nonlinear-Linear Cascade Systems Hvard Fjr Grip, Ali Saberi, and Tor A. Johansen
Observers for Nonlinear-Linear Cascade Systems HÕvard Fjµr Grip, Ali Saberi, and Tor A. Johansen been HÕvard Fjµr Grip and Ali Saberi are with the School of Electrical Engineering and Computer Science of HÕvard Fjµr Grip is supported by the Research Council of Norway. The work of Ali Saberi is partially
Johansen, Tor Arne
Faculty Observations: John Scofield An Energy-Monitoring System for Stanford
Faculty Observations: John Scofield An Energy-Monitoring System for Stanford University's Leslie buildings use energy, and each year we conducted an energy audit of a local building, most often a house in town. We conducted energy audits of two Oberlin College buildings, the Wright Laboratory of Physics
Scofield, John H.
HF radar in French Mediterranean Sea: an element of MOOSE Mediterranean Ocean Observing System on Environment
Sea in the context of climate change and anthropogenic pressure and to supply and maintain longHF radar in French Mediterranean Sea: an element of MOOSE Mediterranean Ocean Observing System , Pascal Guterman2 , Karim Bernardet2 1 Mediterranean Institute of Oceanography (MIO, UM 110, USTV
Boyer, Edmond
Effects of valley meteorology on forest pesticide spraying
Pacific Northwest Laboratory conducted this study for the Missoula Technology and Development Center of the US Department of Agriculture's Forest Service. The purpose of the study was to summarize recent research on valley meteorology during the morning transition period and to qualitatively evaluate the effects of the evolution of valley temperature inversions and wind systems on the aerial spraying of pesticides in National Forest areas of the western United States. Aerial spraying of pesticides and herbicides in forests of the western United States is usually accomplished in the morning hour after first light, during the period known to meteorologists as the morning transition period.'' This document describes the key physical processes that occur during the morning transition period on undisturbed days and the qualitative effects of these processes on the conduct of aerial spraying operations. Since the timing of valley meteorological events may be strongly influenced by conditions that are external to the valley, such as strong upper-level winds or the influence of clouds on the receipt of solar energy in the valley, some remarks are made on the qualitative influence of these processes. Section 4 of this report suggests ways to quantify some of the physical processes to provide useful guidance for the planning and conduct of spraying operations. 12 refs., 9 figs.
Whiteman, C.D.
Data Management for Earth System Science Institute for Computational Earth System Science
observations, and there are several currently operat- ing satellite systems that acquire this level of cover, and indirectly from satellites), and meteorological measurements (fixed weather stations and mobile field measure- ments). A recent and significant source of point data are satellite-borne radar altimeters, which we
Dozier, Jeff
The dynamical evolution of planetary systems leaves observable signatures in debris disks. Optical images trace micron-sized grains, which are strongly affected by stellar radiation and need not coincide with their parent body population. Observations of millimeter-sized grains accurately trace parent bodies, but previous images lack the resolution and sensitivity needed to characterize the ring's morphology. Here we present ALMA 350 GHz observations of the Fomalhaut debris ring. These observations demonstrate that the parent body population is 13-19 AU wide with a sharp inner and outer boundary. We discuss three possible origins for the ring and suggest that debris confined by shepherd planets is the most consistent with the ring's morphology.
Boley, A. C.; Payne, M. J.; Ford, E. B.; Shabram, M. [Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611 (United States); Corder, S. [North American ALMA Science Center, National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903 (United States); Dent, W. R. F. [ALMA, Alonso de Cordova 3107, Vitacura, Santiago (Chile)
Autonomous Observing and Control Systems for PAIRITEL, a 1.3m Infrared Imaging Telescope
The Peters Automated Infrared Imaging Telescope (PAIRITEL) is the first meter-class telescope operating as a fully robotic IR imaging system. Dedicated in October 2004, PAIRITEL began regular observations in mid-December 2004 as part of a 1.5 year commissioning period. The system was designed to respond without human intervention to new gamma-ray burst transients: this milestone was finally reached on November 9, 2005 but the telescope had a number of semi-automated sub-10 minute responses throughout early commissioning. When not operating in Target of Opportunity mode, PAIRITEL performs a number of queue scheduled transient monitoring campaigns. To achieve this level of automation, we have developed communicating tools to connect the various sub-systems: an intelligent queue scheduling database, run-time configurable observation sequence software, a data reduction pipeline, and a master state machine which monitors and controls all functions within and affecting the observatory.
J. S. Bloom; Dan L. Starr; Cullen H. Blake; M. F. Skrutskie; Emilio E. Falco
Stability of autonomous systems The pole placement problem Stabilization by state feedback State observers Pole placement and Stability, Pole Placement, Observers and
Stability of autonomous systems The pole placement problem Stabilization by state feedback State University of Groningen Stability, Pole Placement, Observers and Stabilization #12;Stability of autonomous and Outline 1 Stability of autonomous systems 2 The pole placement problem 3 Stabilization by state feedback 4
Trentelman, Harry L.
Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models
Eighty planetary systems of two or more planets are known to orbit stars other than the Sun. For most, the data can be sufficiently explained by non-interacting Keplerian orbits, so the dynamical interactions of these systems have not been observed. Here we present 4 sets of lightcurves from the Kepler spacecraft, which each show multiple planets transiting the same star. Departure of the timing of these transits from strict periodicity indicates the planets are perturbing each other: the observed timing variations match the forcing frequency of the other planet. This confirms that these objects are in the same system. Next we limit their masses to the planetary regime by requiring the system remain stable for astronomical timescales. Finally, we report dynamical fits to the transit times, yielding possible values for the planets masses and eccentricities. As the timespan of timing data increases, dynamical fits may allow detailed constraints on the systems architectures, even in cases for which high-precision Doppler follow-up is impractical.
Fabrycky, Daniel C.; /UC, Santa Cruz; Ford, Eric B.; /Florida U.; Steffen, Jason H.; /Fermilab; Rowe, Jason F.; /SETI Inst., Mtn. View /NASA, Ames; Carter, Joshua A.; /Harvard-Smithsonian Ctr. Astrophys.; Moorhead, Althea V.; /Florida U.; Batalha, Natalie M.; /San Jose State U.; Borucki, William J.; /NASA, Ames; Bryson, Steve; /NASA, Ames; Buchhave, Lars A.; /Bohr Inst. /Copenhagen U.; Christiansen, Jessie L.; /SETI Inst., Mtn. View /NASA, Ames /Caltech
Career Map: Meteorological Technician | Department of Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' ResearchTheMarketing,Energy-Chevron U.S.A.CAMPAIGNINGcivilMeteorological Technicians
Optical observations of Be/X-ray transient system KS 1947+300
ROTSE-IIId observations of the Be/X-ray transient system KS 1947+300 obtained between September 2004 and December 2005 make it possible to study the correlation between optical and X-ray activity. The optical outburst of 0.1 mag was accompanied by an increase in X-ray flux in 2004 observations. Strong correlation between the optical and X-ray light curves suggests that neutron star directly accretes from the outflowing material of Be star. The nearly zero time lag between X-ray and optical light curves suggests a heating of the disk of Be star by X-rays. No optical brightening and X-ray enhancement was seen in 2005 observations. There is no indication of the orbital modulation in the optical light curve.
U. Kiziloglu; A. Baykal; N. Kiziloglu
Max-Planck-Institute for Meteorology, Hamburg, Germany Swedish Meteorological and Hydrological Institute, Norrkoping, Sweden
Institute, Norrko├?ping, Sweden 3 Finnish Meteorological Institute, Helsinki, Finland 4 Rossby Centre, Norrko├?ping, Sweden 5 German Weather Service, Offenbach, Germany 6 Institute for Marine Research, University of Kiel, Sweden A comprehensive model inter-comparison study investigating the water budget during the BALTEX
Lindau, Ralf
Observable Consequences of Planet Formation Models in Systems with Close-in Terrestrial Planets
To date, two planetary systems have been discovered with close-in, terrestrial-mass planets (planet; 4) formation from material being shepherded by moving secular resonances during dispersal of the protoplanetary disk; 5) tidal circularization of eccentric terrestrial planets with close-in perihelion distances; and 6) photo-evaporative mass loss of a close-in giant planet. Models 1-4 have been validated in previous work. We show that tidal circularization can form hot Earths, but only for relatively massive planets (> 5 Earth masses) with very close-in perihelion distances (planets of less than about 70 Earth masses, photo-evaporation can remove the planet's envelope and leave behind the solid core on a Gyr timescale, but only for planets inside 0.025-0.05 AU. Using two quantities that are observable by current and upcoming missions, we show that these models each produce unique signatures, and can be observationally distinguished. These observables are the planetary system architecture (detectable with radial velocities, transits and transit-timing) and the bulk composition of transiting close-in terrestrial planets (measured by transits via the planet's radius).
Sean N. Raymond; Rory Barnes; Avi M. Mandell
Hanford Meteorological Station computer codes: Volume 8, The REVIEW computer code
The Hanford Meteorological Station (HMS) routinely collects meteorological data from sources on and off the Hanford Site. The data are averaged over both 15 minutes and 1 hour and are maintained in separate databases on the Digital Equipment Corporation (DEC) VAX 11/750 at the HMS. The databases are transferred to the Emergency Management System (EMS) DEC VAX 11/750 computer. The EMS is part of the Unified Dose Assessment Center, which is located on on the ground-level floor of the Federal building in Richland and operated by Pacific Northwest Laboratory. The computer program REVIEW is used to display meteorological data in graphical and alphanumeric form from either the 15-minute or hourly database. The code is available on the HMS and EMS computer. The REVIEW program helps maintain a high level of quality assurance on the instruments that collect the data and provides a convenient mechanism for analyzing meteorological data on a routine basis and during emergency response situations.
Andrews, G.L.; Burk, K.W.
Correlated observables in single-particle systems and field theoretic interpretations
Bell-type experiments that test correlated observables typically involve measurements of spin or polarization on multi-particle systems in singlet states. These observables are all non-commuting and satisfy an uncertainty relation. Theoretically, the non-commuting nature should be independent of whether the singlet state consists of multiple particles or a single particle. Recent experiments in single neutron interferometry have in fact demonstrated this. In addition, if Bell-type inequalities can be found for experiments involving spin and polarization, the same should be true for experiments involving other non-commuting observables such as position and momentum as in the original EPR paper. As such, an experiment is proposed to measure (quantum mechanically) position and momentum for a single oscillator as a means for deriving a Bell-type inequality for these correlated observables. The experiment, if realizable, would shed light on the basic nature of matter, perhaps pointing to some form of self-entanglement, and would also help to further elucidate a possible mechanism behind the Heisenberg uncertainty principle. Violation of these inequalities would, in fact, offer yet another confirmation of the principle.
Ian T. Durham
CHAPTER III MARINE METEOROLOGY OF THE GULF OF MEXICO #12;Blank page retained for pagination #12;MARINE METEOROLOGY OF THE GULF OF MEXICO, A BRIEF REVIEW 1 By DALE F. LEIPPER, Department oj Oceonography, Agricultural and Mechanical College oj Tuas The best general summary of the weather over the Gulf of Mexico
beneficial relationships have more staying power. Geodesy needs more meteorological input. Ę If meteorology is associated with the induced dipole moment of all atmospheric components (including water vapor). The wet involves using GPS to sense Z, isolate the wet delay Zw, and transform Zw to PW (the total vertical column
Brookhaven National Laboratory meteorological services instrument calibration plan and procedures
This document describes the Meteorological Services (Met Services) Calibration and Maintenance Schedule and Procedures, The purpose is to establish the frequency and mechanism for the calibration and maintenance of the network of meteorological instrumentation operated by Met Services. The goal is to maintain the network in a manner that will result in accurate, precise and reliable readings from the instrumentation.
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regimes Regime meteorology Vertical pressure velocity Potential temperature Relative humidity Wind speed regimes Regime meteorology Vertical pressure velocity Potential temperature Relative humidity Wind speed Regime meteorology Vertical pressure velocity Potential temperature Relative humidity Wind speed
Jakob, Christian
Ultrashort-period MS eclipsing systems. New observations and light curve solutions of six NSVS binaries
We carried out photometric and low-resolution spectral observations of six eclipsing ultrashort-period binaries with MS components. The light curve solutions of the Rozhen observations show that all targets are overcontact systems. We found well-defined empirical relation "period -- semi-major axis" for the short-period binaries and used it for estimation of the global parameters of the targets. Our results revealed that NSVS 925605 is quite interesting target: (a) it is one of a few contact binaries with M components; (b) it exhibits high activity (emission in H$\\alpha$ line, X-ray emission, large cool spots, non-Planck energy distribution); (c) its components differ in temperature by 700 K. All appearances of high magnetic activity and huge fillout factor (0.7) of NSVS 925605 might be assumed as a precursor of the predicted merging of close magnetic binaries. Another unusual binary is NSVS 2700153 which reveals considerable long-term variability.
Dimitrov, Dinko
Understanding and Improving CRM and GCM Simulations of Cloud Systems with ARM Observations
The works supported by this ASR project lay the solid foundation for improving the parameterization of convection and clouds in the NCAR CCSM and the climate simulations. We have made a significant use of CRM simulations and ARM observations to produce thermodynamically and dynamically consistent multi-year cloud and radiative properties; improve the GCM simulations of convection, clouds and radiative heating rate and fluxes using the ARM observations and CRM simulations; and understand the seasonal and annual variation of cloud systems and their impacts on climate mean state and variability. We conducted multi-year simulations over the ARM SGP site using the CRM with multi-year ARM forcing data. The statistics of cloud and radiative properties from the long-term CRM simulations were compared and validated with the ARM measurements and value added products (VAP). We evaluated the multi-year climate simulations produced by the GCM with the modified convection scheme. We used multi-year ARM observations and CRM simulations to validate and further improve the trigger condition and revised closure assumption in NCAR GCM simulations that demonstrate the improvement of climate mean state and variability. We combined the improved convection scheme with the mosaic treatment of subgrid cloud distributions in the radiation scheme of the GCM. The mosaic treatment of cloud distributions has been implemented in the GCM with the original convection scheme and enables the use of more realistic cloud amounts as well as cloud water contents in producing net radiative fluxes closer to observations. A physics-based latent heat (LH) retrieval algorithm was developed by parameterizing the physical linkages of observed hydrometeor profiles of cloud and precipitation to the major processes related to the phase change of atmospheric water.
Wu, Xiaoqing
Daily Processing of Solar System Object Observations by Gaia UMR 6202 Cassiope, University of Nice-Sophia Antipolis, CNRS,
complex operations, devoted to obtain the best accuracies in the output. It will operate on data obtainedDaily Processing of Solar System Object Observations by Gaia Tanga, P. UMR 6202 Cassiopķe to a selected event. For this reason, a pipeline performing fast processing of Gaia observations of Solar System
Paris-Sud XI, Universitķ de
Heating and Dynamics of Two Flare Loop Systems Observed by AIA and EIS
We investigate heating and evolution of flare loops in a C4.7 two-ribbon flare on 2011 February 13. From SDO/AIA imaging observations, we can identify two sets of loops. Hinode/EIS spectroscopic observations reveal blueshifts at the feet of both sets of loops. The evolution and dynamics of the two sets are quite different. The first set of loops exhibits blueshifts for about 25 minutes followed by redshifts, while the second set shows stronger blueshifts, which are maintained for about one hour. The UV 1600 observation by AIA also shows that the feet of the second set of loops brighten twice. These suggest that continuous heating may be present in the second set of loops. We use spatially resolved UV light curves to infer heating rates in the few tens of individual loops comprising the two loop systems. With these heating rates, we then compute plasma evolution in these loops with the "enthalpy-based thermal evolution of loops" (EBTEL) model. The results show that, for the first set of loops, the synthetic EU...
Li, Y; Ding, M D
1 JULY 2002 1537W A T A N A B E E T A L . 2002 American Meteorological Society
AND FEI-FEI JIN Department of Meteorology, School of Ocean and Earth Science and Technology, University, Tokyo, Japan (Manuscript received 24 August 2001, in final form 6 December 2001) ABSTRACT by the leading principal component of the observed 300-hPa streamfunction anomalies, shows quite significant
Wang, Yuqing
Classicality condition on a system's observable in a quantum measurement and relative-entropy conservation law
We consider the information flow on a system's observable $X$ corresponding to a positive-operator valued measure under a quantum measurement process $Y$ described by a completely positive instrument from the viewpoint of the relative entropy. We establish a sufficient condition for the relative-entropy conservation law which states that the averaged decrease in the relative entropy of the system's observable $X$ equals the relative entropy of the measurement outcome of $Y$, i.e. the information gain due to measurement. This sufficient condition is interpreted as an assumption of classicality in the sense that there exists a sufficient statistic in a joint successive measurement of $Y$ followed by $X$ such that the probability distribution of the statistic coincides with that of a single measurement of $X$ for the pre-measurement state. We show that in the case when $X$ is a discrete projection-valued measure and $Y$ is discrete, the classicality condition is equivalent to the relative-entropy conservation for arbitrary states. The general theory on the relative-entropy conservation is applied to typical quantum measurement models, namely quantum non-demolition measurement, destructive sharp measurements on two-level systems, a photon counting, a quantum counting, homodyne and heterodyne measurements. These examples except for the non-demolition and photon-counting measurements do not satisfy the known Shannon-entropy conservation law proposed by Ban~(M. Ban, J. Phys. A: Math. Gen. \\textbf{32}, 1643 (1999)), implying that our approach based on the relative entropy is applicable to a wider class of quantum measurements.
Yui Kuramochi; Masahito Ueda
A Saturn Ring Observer Mission Using Multi-Mission Radioisotope Power Systems
Saturn remains one of the most fascinating planets within the solar system. To better understand the complex ring structure of this planet, a conceptual Saturn Ring Observer (SRO) mission is presented that would spend one year in close proximity to Saturn's A and B rings, and perform detailed observations and measurements of the ring particles and electric and magnetic fields. The primary objective of the mission would be to understand ring dynamics, including the microphysics of individual particles and small scale (meters to a few kilometers) phenomena such as particle agglomeration behavior. This would be accomplished by multispectral imaging of the rings at multiple key locations within the A and B rings, and by ring-particle imaging at an unprecedented resolution of 0.5 cm/pixel. The SRO spacecraft would use a Venus-Earth-Earth-Jupiter Gravity Assist (VEEJGA) and be aerocaptured into Saturn orbit using an advanced aeroshell design to minimize propellant mass. Once in orbit, the SRO would stand off from the ring plane 1 to 1.4 km using chemical thrusters to provide short propulsive maneuvers four times per revolution, effectively causing the SRO vehicle to 'hop' above the ring plane. The conceptual SRO spacecraft would be enabled by the use of a new generation of multi-mission Radioisotope Power Systems (RPSs) currently being developed by NASA and DOE. These RPSs include the Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) and Stirling Radioisotope Generator (SRG). The RPSs would generate all necessary electrical power ({>=}330 We at beginning of life) during the 10-year cruise and 1-year science mission ({approx}11 years total). The RPS heat would be used to maintain the vehicle's operating and survival temperatures, minimizing the need for electrical heaters. Such a mission could potentially launch in the 2015-2020 timeframe, with operations at Saturn commencing in approximately 2030.
Abelson, Robert D.; Spilker, Thomas R.; Shirley, James H. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Mail Stop 301-445W, Pasadena, CA 91109-8099 (United States)
High-speed, energy-resolved, STJ observations of the AM Her system V2301 Oph
We present high time-resolution optical energy-resolved photometry of the eclipsing cataclysmic variable V2301 Oph made using the ESA S-Cam detector, an array of photon counting super-conducting tunnel junction (STJ) devices with intrinsic energy resolution. Three eclipses were observed, revealing considerable variation in the eclipse shape, particularly during ingress. The eclipse shape is shown to be understood in terms of AM Her accretion via a bright stream, with very little contribution from the white dwarf photosphere and/or hotspot. About two thirds of the eclipsed light arises in the threading region. Variation in the extent of the threading region can account for most of the variations observed between cycles. Spectral fits to the data reveal a 10,000K blackbody continuum with strong, time-varying emission lines of hydrogen and helium. This is the first time that stellar emission lines have been detected in the optical band using a non-dispersive photon-counting system.
A. P. Reynolds; G. Ramsay; J. H. J. de Bruijne; M. A. C. Perryman; M. Cropper; C. M. Bridge; A. Peacock
Data Archive of Tracer Experiments and Meteorology Roland R. Draxler
to address these issues. In particular there has been consistent emphasis on nuclear reactor accidents since the Chernobyl accident by the International Atomic Energy Agency (IAEA) and the World Meteorological
Applications of Climatology and Meteorology to Hydrologic Simulation
TR-38 1971 Applications of Climatology and Meteorology to Hydrologic Simulation R.A. Clark G.E. O?Connor Texas Water Resources Institute Texas A&M University ...
Clark, R. A.; O'Connor, G. E.
CLARREO shortwave observing system simulation experiments of the twenty-first century: Simulator design and implementation
Projected changes in the Earth system will likely be manifested in changes in reflected solar radiation. This paper introduces an operational Observational System Simulation Experiment (OSSE) to calculate the signals of future climate forcings and feedbacks in top-of-atmosphere reflectance spectra. The OSSE combines simulations from the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report for the NCAR Community Climate System Model (CCSM) with the MODTRAN radiative transfer code to calculate reflectance spectra for simulations of current and future climatic conditions over the 21st century. The OSSE produces narrowband reflectances and broadband fluxes, the latter of which have been extensively validated against archived CCSM results. The shortwave reflectance spectra contain atmospheric features including signals from water vapor, liquid and ice clouds, and aerosols. The spectra are also strongly influenced by the surface bidirectional reflectance properties of predicted snow and sea ice and the climatological seasonal cycles of vegetation. By comparing and contrasting simulated reflectance spectra based on emissions scenarios with increasing projected and fixed present-day greenhouse gas and aerosol concentrations, we find that prescribed forcings from increases in anthropogenic sulfate and carbonaceous aerosols are detectable and are spatially confined to lower latitudes. Also, changes in the intertropical convergence zone and poleward shifts in the subsidence zones and the storm tracks are all detectable along with large changes in snow cover and sea ice fraction. These findings suggest that the proposed NASA Climate Absolute Radiance and Refractivity Observatory (CLARREO) mission to measure shortwave reflectance spectra may help elucidate climate forcings, responses, and feedbacks.
Feldman, D.R.; Algieri, C.A.; Ong, J.R.; Collins, W.D.
Potential Soil Moisture Products from the Aquarius Radiometer and Scatterometer Using an Observing System Simulation Experiment
Using an observing system simulation experiment (OSSE), we investigate the potential soil moisture retrieval capability of the National Aeronautics and Space Administration (NASA) Aquarius radiometer (L-band 1.413 GHz) and scatterometer (L-band, 1.260 GHz). We estimate potential errors in soil moisture retrievals and identify the sources that could cause those errors. The OSSE system includes (i) a land surface model in the NASA Land Information System, (ii) a radiative transfer and backscatter model, (iii) a realistic orbital sampling model, and (iv) an inverse soil moisture retrieval model. We execute the OSSE over a 1000 2200 km2 region in the central United States, including the Red and Arkansas river basins. Spatial distributions of soil moisture retrieved from the radiometer and scatterometer are close to the synthetic truth. High root mean square errors (RMSEs) of radiometer retrievals are found over the heavily vegetated regions, while large RMSEs of scatterometer retrievals are scattered over the entire domain. The temporal variations of soil moisture are realistically captured over a sparely vegetated region with correlations 0.98 and 0.63, and RMSEs 1.28% and 8.23% vol/vol for radiometer and scatterometer, respectively. Over the densely vegetated region, soil moisture exhibits larger temporal variation than the truth, leading to correlation 0.70 and 0.67, respectively, and RMSEs 9.49% and 6.09% vol/vol respectively. The domain-averaged correlations and RMSEs suggest that radiometer is more accurate than scatterometer in retrieving soil moisture. The analysis also demonstrates that the accuracy of the retrieved soil moisture is affected by vegetation coverage and spatial aggregation.
Luo, Yan [I.M. Systems Group at NOAA/NCEP/EMC; Feng, Xia [George Mason University; Houser, Paul [George Mason University; Anantharaj, Valentine G [ORNL; Fan, Xingang [Western Kentucky University, Bowling Green; De Lannoy, Gabrielle [Ghent University, Belgium; Zhan, Xiwu [NOAA/NESDIS Center for Satellite Applications and Research; Dabbiru, Lalitha [Mississippi State University (MSU)
Canonical Correlation Analysis (CCA) of GRACE, hydrological and hydro-meteorological signals
1 Canonical Correlation Analysis (CCA) of GRACE, hydrological and hydro-meteorological signals M. J and Hydro-meteorology Hydrology GRACE Hydro-meteorology RQ dt dS dt dMdS RETP . dt AH a #12;3 GRACE, times based signals #12;12 CCA on catchments based ┬Ł GRACE and hydro-meteorology T GDGDGD T VUQ dt d
Stuttgart, Universit├żt
The system for observing fitness instruction time (SOFIT) as a measure of energy expenditure during classroom based physical activity
The aim of this investigation was to develop an equation to estimate physical activity energy expenditure (PAEE) during a 10-min physically active academic lesson using The System for Observing Fitness Instruction Time ...
Honas, Jeffery J.; Washburn, Richard A.; Smith, Bryan K.; Greene, Leon; Cook-Wiens, Galen; Donnelly, Joseph E.
IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 22, NO. 4, NOVEMBER 2007 1881 Analysis of Tap-Induced Oscillations Observed
analysis, tap-changing transformers, voltage oscillations. I. INTRODUCTION ANUMBER of years ago, voltage-Induced Oscillations Observed in an Electrical Distribution System Vaibhav Donde, Member, IEEE, and Ian A. Hiskens, Fellow, IEEE Abstract--Slow oscillations, with a period of around 15 min, were observed in an 11-k
Hiskens, Ian A.
Observers for Interconnected Nonlinear and Linear Systems Havard Fjr Grip a, Ali Saberi a, and Tor A. Johansen b
Observers for Interconnected Nonlinear and Linear Systems H░avard Fjµr Grip a, Ali Saberi a (Esfandiari and Khalil, 1987; Saberi and Sannuti, 1990), and non-left-invertible systems (e.g., Gauthier, Hammouri, and Othman, 1992; Bornard and Hammouri, 2002; Grip and Saberi, 2010); the exploitation
24 m meteorological tower data report period: January through December, 1996
This report was prepared by the Desert Research Institute (DRI) for the US Department of Energy (DOE). It summarizes meteorological data collected at the 24 meter tower at the Nevada Test Site Hazardous Material Spill Center (HAZMAT) located at Frenchman Flat near Mercury, Nevada, approximately 75 miles northwest of Las Vegas, Nevada. The tower was originally installed in July, 1993 to characterize baseline conditions for an EPA sponsored experimental research program at the HAZMAT. This report presents results of the monitoring for January--December, 1996, providing: a status of the measurement systems during the report period and a summary of the meteorological conditions at the HAZMAT during the report period. The scope of the report is limited to summary data analyses and does not include extensive meteorological analysis. The tower was instrumented at 8 levels. Wind speed, wind direction, and temperature were measured at all 8 levels. Relative humidity was measured at 3 levels. Solar and net radiation were measured at 2 meters above the ground. Barometric pressure was measured at the base of the tower and soil temperature was measured near the base of the tower.
Freeman, D.; Bowen, J.; Egami, R.; Coulombe, W.; Crow, D.; Cristani, B.; Schmidt, S.
24 m meteorological tower data report period: January through December, 1995
This report was prepared by the Desert Research Institute (DRI) for the US Department of Energy (DOE). It summarizes meteorological data collected at the 24 meter tower at the Nevada Test Site Hazardous Material Spill Center (HAZMAT) located at Frenchman Flat near Mercury, Nevada, approximately 75 miles northwest of Las Vegas, Nevada. The tower was originally installed in July, 1993 to characterize baseline conditions for an EPA sponsored experimental research program at the HAZMAT. A previous report reported monitoring results for 1994. This report presents results of the monitoring for January--December, 1995, providing: a status of the measurement systems (including any quality assurance activities) during the report period and a summary of the meteorological conditions at the HAZMAT during the report period. The scope of the report is limited to summary data analyses and does not include extensive meteorological analysis. The tower was instrumented at 8 levels. Wind speed, wind direction, and temperature were measured at all 8 levels. Relative humidity was measured at 3 levels. Solar and net radiation were measured at 2 meters above the ground. Barometric pressure was measured at the base of the tower and soil temperature was measured near the base of the tower.
Freeman, D.; Bowen, J.B.; Egami, R.; Coulombe, W.; Crow, D.; Cristani, B.; Schmidt, S.
Cirrus cloud-temperature interactions over a tropical station, Gadanki from lidar and satellite observations
The cirrus clouds play an important role in the radiation budget of the earth's atmospheric system and are important to characterize their vertical structure and optical properties. LIDAR measurements are obtained from the tropical station Gadanki (13.5{sup 0} N, 79.2{sup 0} E), India, and meteorological indicators derived from Radiosonde data. Most of the cirrus clouds are observed near to the tropopause, which substantiates the strength of the tropical convective processes. The height and temperature dependencies of cloud height, optical depth, and depolarization ratio were investigated. Cirrus observations made using CALIPSO satellite are compared with lidar data for systematic statistical study of cirrus climatology.
S, Motty G, E-mail: email@example.com; Satyanarayana, M., E-mail: firstname.lastname@example.com; Krishnakumar, V., E-mail: firstname.lastname@example.com; Dhaman, Reji k., E-mail: firstname.lastname@example.com [Department of Optoelectronics, University of Kerala, Kariavattom, Trivandrum-695 581, Kerala (India)
Systems and Algorithms for Automated Collaborative Observation using Networked Robotic Cameras
and performance of the system, there are many technical challenges needing to be addressed. In this dissertation, we address two major challenges in the MOMR++ system development. We first address the robot coordination and planning issue in the application...
Xu, Yiliang
The Meteorological Monitoring program at a former nuclear weapons plant
The purpose of the Meteorological Monitoring program at Rocky Flats Plant (RFP) is to provide meteorological information for use in assessing the transport, and diffusion, and deposition of effluent actually or potentially released into the atmosphere by plant operations. Achievement of this objective aids in protecting health and safety of the public, employees, and environment, and directly supports Emergency Response programs at RFP. Meteorological information supports the design of environmental monitoring networks for impact assessments, environmental surveillance activities, remediation activities, and emergency responses. As the mission of the plant changes from production of nuclear weapons parts to environmental cleanup and economic development, smaller releases resulting from remediation activities become more likely. These possible releases could result from airborne fugitive dust, evaporation from collection ponds, or grass fires.
Maxwell, D.R.; Bowen, B.M.
Passive microwave observations of mesoscale convective systems over the tropical Pacific Ocean
This paper presents high resolution passive microwave measurements obtained in the western Pacific warm pool region. These measurements represent the first comprehensive observations of convection over the tropical oceans, and were obtained from...
McGaughey, Gary Rae
A satellite ocean color observation operator system for eutrophication assessment in coastal waters
Group (IOCCG) and following their recent guidelines, novel in- herent optical properties approaches (e of model variables into observed quantities which simplifies the transport of measurement errors- chemical products (including
Fontana, Cl├®ment
Revised for a more comprehensive overview of vapor incidents reported at the Hanford Tank Farms. Investigation into the meteorological influences on vapor incidents in the tank farm to determine what, if any, meteorological influences contribute to the reporting of odors, smells, vapors, and other gases. Weather phenomena, specifically barometric pressure, and wind velocity and direction can potentially cause or exacerbate a vapor release within the farm systems. The purpose of this document is to gather and evaluate the meteorological and weather information for the Tank Farms Shift Log Vapor Incident entries and determine what, if any, meteorological influences contribute to the reporting of odors, smells, vapors, and other gases such as propane. A part of the evaluation will be determining which of the incidents are related to actual ''intrusive'' work, and which are ''transient.'' Transient vapor incidents are herein defined as those vapors encountered during walkdowns, surveys, or other activities that did not require working directly with the tanks, pits, transfer lines, etc. Another part of the investigation will involve determining if there are barometric pressures or other weather related phenomena that might cause or contribute vapors being released when there are no ''intrusive'' activities. A final purpose is to evaluate whether there is any correlation between the 242-A Evaporator operations and Vapor Incidents entered on the Shift Log.
We analyze the deviations of transit times from a linear ephemeris for the Kepler Objects of Interest (KOI) through quarter six of science data. We conduct two statistical tests for all KOIs and a related statistical test for all pairs of KOIs in multi-transiting systems. These tests identify several systems which show potentially interesting transit timing variations (TTVs). Strong TTV systems have been valuable for the confirmation of planets and their mass measurements. Many of the systems identified in this study should prove fruitful for detailed TTV studies.
Steffen, Jason H. [Fermilab Center for Particle Astrophysics, P.O. Box 500, MS 127, Batavia, IL 60510 (United States); Ford, Eric B. [Astronomy Department, University of Florida, 211 Bryant Space Sciences Center, Gainesville, FL 32111 (United States); Rowe, Jason F.; Borucki, William J.; Bryson, Steve; Caldwell, Douglas A.; Jenkins, Jon M.; Koch, David G.; Sanderfer, Dwight T.; Seader, Shawn; Twicken, Joseph D. [NASA Ames Research Center, Moffett Field, CA 94035 (United States); Fabrycky, Daniel C. [UCO/Lick Observatory, University of California, Santa Cruz, CA 95064 (United States); Holman, Matthew J. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Welsh, William F. [Astronomy Department, San Diego State University, San Diego, CA 92182-1221 (United States); Batalha, Natalie M. [Department of Physics and Astronomy, San Jose State University, San Jose, CA 95192 (United States); Ciardi, David R. [NASA Exoplanet Science Institute/California Institute of Technology, Pasadena, CA 91125 (United States); Kjeldsen, Hans [Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C (Denmark); Prsa, Andrej, E-mail: email@example.com [Department of Astronomy and Astrophysics, Villanova University, 800 East Lancaster Avenue, Villanova, PA 19085 (United States)
Annual report 2008 | 1Ministry of Transport, Public Works and Water Management | Royal Netherlands Meteorological Institute Royal Netherlands
Annual report 2008 | 1Ministry of Transport, Public Works and Water Management | Royal Netherlands Meteorological Institute Royal Netherlands Meteorological Institute Ministry of Transport, Public Works and Water Management | Royal Netherlands Meteorological Institute Foreword ]| Annual report ]| Water ]| Interview
Stoffelen, Ad
Accomplishments and future perspective of coastal ocean observing systems Coastal oceans are the most densely urbanized regions on the
as communities increasingly rely on the coastal ocean to provide additional sources of energy (wind, waves, oil Observing System (IOOS) in the United States [see Marine Technologies Society Journal volumes 44(No.6 08901, United States E-mail address: firstname.lastname@example.com Yi Chao n Remote Sensing Solutions, Inc
1D+4D-VAR data assimilation of lightning with WRFDA system using nonlinear observation operators
1 1D+4D-VAR data assimilation of lightning with WRFDA system using nonlinear observation operators of assimilating data from the Earth Networks Total Lightning Network (ENTLN) during two cases of severe weather Mapper (GLM). We use the Weather Research and Forecast (WRF) model and variational data assimilation
"Real-Time Coastal Observing Systems for Ecosystem Dynamics and Harmful Algal Blooms" Resubmitted 4 March 2005
Initiation and Prediction in Large European Marine Ecosystems (HABILE) in the North Sea, Fisheries & Oceans"Real-Time Coastal Observing Systems for Ecosystem Dynamics and Harmful Algal Blooms" Resubmitted 4 ________________________________________________________________________ X.1 Introduction X X.2 Processes in the coastal ocean X X.2.1 Physical processes X X.2.2 Biological
Fabrikant, Sara Irina
Observations of prolific transient luminous event production above a mesoscale convective system in Argentina during
in Argentina during the Sprite2006 Campaign in Brazil F. T. S├Żo Sabbas,1 M. J. Taylor,2 P.D. Pautet,2 M. Bailey convective system (MCS) over Argentina, as part of the third sprite campaign in Brazil. GOES infrared (IR a mesoscale convective system in Argentina during the Sprite2006 Campaign in Brazil, J. Geophys. Res., 115, A
Thomas, Jeremy N.
Evolution of Meteorological Base Models for Estimating Hourly Global Solar Radiation in Texas
ESL-PA-13-11-01 Available online at www.sciencedirect.com Energy Procedia 00 (2013) 000¢000 www.elsevier.com/locate/procedia 2013 ISES Solar World Congress Evaluation of Meteorological Base Models... for Estimating Hourly Global Solar Radiation in Texas Kee Han Kima,b*, Juan-Carlos Baltazarb, and Jeff S. Haberla,b aDepartment of Architecture, Texas A&M University, 3137 TAMU, College Station, TX 77843-3137, U.S.A. bEnergy Systems Laboratory, Texas A...
Kim, H.; Baltazar, J.C.; Haberl, J.S
An Online Spectral Learning Algorithm for Partially Observable Nonlinear Dynamical Systems
Boots Machine Learning Department Carnegie Mellon University Pittsburgh, Pennsylvania 15213 Geoffrey J; Boots, Siddiqi, and Gordon 2010), and the closely related Observable Operator Models (OOMs) (Jaeger 2000 2009; Siddiqi, Boots, and Gordon 2010) and TPSRs (Rosencrantz, Gordon, and Thrun 2004; Boots, Siddiqi
Gordon, Geoffrey J.
The Earth Observing System (EOS)Aura satellite mission is scheduled to launch in June 2004.
://cloudsat.atmos.colostate.edu/),which is to be launched in mid-2005 [Stephens et al.,2002]. This group of satellites,including the Centre National d? Total Ozone Mapping Spectrometer (TOMS) observations from 1978 show a strong secular decrease in column the TOMS/SBUV global column and profile ozone trend measurements. What are the sources and processes
81Bulletin of the American Meteorological Society 1. Introduction
1998. ┬® 1999 American Meteorological Society ABSTRACT Shipborne Doppler radar operations were conducted 50 km of each other to conduct coordinated dual-Doppler scanning. The dual- Doppler operations were and Lukas 1992) was conducted in the warm- pool region of the western Pacific Ocean. The scien- tific goals
1819Bulletin of the American Meteorological Society 1. Introduction
reduc- tions in expenditures (and costs) for natural gas and heating oil, record seasonal sales their strategy for pur- chasing natural gas, leading to major savings to their customers. #12;1820 Vol. 80, No. 9 Meteorological Society ABSTRACT This paper assesses the major impacts on human lives and the economy
Catling, David C.
ORIGINAL PAPER Trends in meteorological and agricultural droughts in Iran
ORIGINAL PAPER Trends in meteorological and agricultural droughts in Iran S. Golian & O. Mazdiyasni droughts and their trends in Iran, as well as several subregions with different climate conditions from, northwestern, and central parts of Iran have experienced sig- nificant drying trends at a 95 % confidence level
AghaKouchak, Amir
Observations on A Technology Roadmap for Generation IV Nuclear Energy Systems: Technical Roadmap Report
Broader source: Energy.gov [DOE]
The development of advanced nuclear energy systems in the U.S. will depend greatly on the continued success of currently operating light water nuclear power plants and the ordering of new...
A third-order sliding-mode observer for a continuous delay chaotic system
Ponceau, 95014 Cergy-Pontoise Cedex. Departamento de Ingenieria de Control y Robotica, Division de Ingenieria Electrica, Facultad de Ingenieria UNAM. Electronic and Control Systems Laboratory (ECS-Lab EA
SST subseasonal variability in the central Benguela upwelling system as inferred from satellite observations (19992009)
associated with the eastern flank of the semipermanent South Atlantic Anti- cyclone (SAA). Through Ekman of distinct physical and biological features, the Benguela system can be separated into three zones charac
Observational Analysis of the Predictability of Mesoscale Convective Systems ISRAEL L. JIRAK AND WILLIAM R. COTTON
AND WILLIAM R. COTTON Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado merge into a large, long-lived organized convective system (Cotton and Anthes 1989). Thus, forecasting
Experimental observation of a phase transition in the evolution of many-body systems with dipolar interactions
Non-equilibrium dynamics of many-body systems is important in many branches of science, such as condensed matter, quantum chemistry, and ultracold atoms. Here we report the experimental observation of a phase transition of the quantum coherent dynamics of a 3D many-spin system with dipolar interactions, and determine its critical exponents. Using nuclear magnetic resonance (NMR) on a solid-state system of spins at room-temperature, we quench the interaction Hamiltonian to drive the evolution of the system. The resulting dynamics of the system coherence can be localized or extended, depending on the quench strength. Applying a finite-time scaling analysis to the observed time-evolution of the number of correlated spins, we extract the critical exponents v = s = 0.42 around the phase transition separating a localized from a delocalized dynamical regime. These results show clearly that such nuclear-spin based quantum simulations can effectively model the non-equilibrium dynamics of complex many-body systems, such as 3D spin-networks with dipolar interactions.
Gonzalo A. Alvarez; Dieter Suter; Robin Kaiser
Presented at the American Meteorological Society Summer Community Meeting Boulder, Colorado August 8 11, 2011 Meteorology and
in "green industries", particularly the maturing wind and emerging solar power industries. New BS and MS graduates in meteorology bring an excellent tool kit of quantitative skills and a unique perspective. Their educational backgrounds complement well those of the engineers who often lead power generation programs
Colorado at Boulder, University of
of testing of any nuclear explosive devices in all environments is the goal of the Comprehensive Test Ban throughout the world. The goal of this system is the detection of any nuclear test. In preparation an international framework under which all nations can agree to stop the testing of nuclear explosions
An adaptive observer for hyperbolic systems with application to UnderBalanced
an UnderBalanced well. While a well is being drilled, a fluid circulates through the drilling system. The drilling fluid cools down the drillbit, and evacuates rock cuttings. More importantly, it pressurizes fluid is controlled by a valve, which enables tighter control of the pressure. UnderBalanced Drilling
This chapter describes observations of continuing change in the Arctic environmental system. It is or-
for the longest period and largest area of ice sheet melt since at least 1978, and the highest melt rate since in the Canadian Arctic, where the rate of mass loss from small glaciers and ice caps continued to increase system. It is or- ganized into five broad sections: atmosphere, ocean, sea ice cover, land, and Greenland
Bhatt, Uma
Eighty planetary systems of two or more planets are known to orbit stars other than the Sun. For most, the data can be sufficiently explained by non-interacting Keplerian orbits, so the dynamical interactions of these systems have not been observed. Here we present four sets of light curves from the Kepler spacecraft, each which of shows multiple planets transiting the same star. Departure of the timing of these transits from strict periodicity indicates that the planets are perturbing each other: the observed timing variations match the forcing frequency of the other planet. This confirms that these objects are in the same system. Next we limit their masses to the planetary regime by requiring the system remain stable for astronomical timescales. Finally, we report dynamical fits to the transit times, yielding possible values for the planets' masses and eccentricities. As the timespan of timing data increases, dynamical fits may allow detailed constraints on the systems' architectures, even in cases for which high-precision Doppler follow-up is impractical.
Fabrycky, Daniel C. [Department of Astronomy and Astrophysics, University of California, Santa Cruz, Santa Cruz, CA 95064 (United States); Ford, Eric B.; Moorhead, Althea V. [Astronomy Department, University of Florida, 211 Bryant Space Sciences Center, Gainesville, FL 32111 (United States); Steffen, Jason H. [Fermilab Center for Particle Astrophysics, P.O. Box 500, MS 127, Batavia, IL 60510 (United States); Rowe, Jason F.; Christiansen, Jessie L. [SETI Institute, Mountain View, CA 94043 (United States); Carter, Joshua A.; Fressin, Francois; Geary, John [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Batalha, Natalie M. [Department of Physics and Astronomy, San Jose State University, San Jose, CA 95192 (United States); Borucki, William J.; Bryson, Steve; Haas, Michael R. [NASA Ames Research Center, Moffett Field, CA, 94035 (United States); Buchhave, Lars A. [Department of Astrophysics and Planetary Science, Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen (Denmark); Ciardi, David R. [NASA Exoplanet Science Institute/Caltech, Pasadena, CA 91126 (United States); Cochran, William D.; Endl, Michael [McDonald Observatory, The University of Texas, Austin TX 78730 (United States); Fanelli, Michael N. [Bay Area Environmental Research Institute/NASA Ames Research Center, Moffett Field, CA 94035 (United States); Fischer, Debra [Astronomy Department, Yale University, New Haven, CT (United States); Hall, Jennifer R., E-mail: firstname.lastname@example.com [Orbital Sciences Corporation/NASA Ames Research Center, Moffett Field, CA 94035 (United States); and others
HD 51106 and HD 50747: an ellipsoidal binary and a triple system observed with CoRoT
We present an analysis of the observations of HD 51106 and HD 50747 by the satellite CoRoT, obtained during its initial run, and of the spectroscopic preparatory observations. AIMS: We complete an analysis of the light curve, extract the main frequencies observed, and discuss some preliminary interpretations about the stars. Methods: We used standard Fourier transform and pre-whitening methods to extract information about the periodicities of the stars. Results: HD 51106 is an ellipsoidal binary, the light curve of which can be completely explained by the tidal deformation of the star and smaller secondary effects. HD 50747 is a triple system containing a variable star, which exhibits many modes of oscillation with periods in the range of a few hours. On the basis of this period range and the analysis of the physical parameters of the star, we conclude that HD 50747 is a Gamma-Doradus star.
Dolez, N; Michel, E; Hua, A Hui Bon; Vauclair, G; Contel, D Le; Mathias, P; Poretti, E; Amado, P J; Rainer, M; Samadi, R; Baglin, A; Catala, C; Auvergne, M; Uytterhoeven, K; Valtier, J C
Observation and characterization of chimera states in coupled dynamical systems with nonlocal coupling
By developing the concepts of strength of incoherence and discontinuity measure, we show that a distinct quantitative characterization of chimera and multichimera states which occur in networks of coupled nonlinear dynamical systems admitting nonlocal interactions of finite radius can be made. These measures also clearly distinguish between chimera or multichimera states (both stable and breathing types) and coherent and incoherent as well as cluster states....
R. Gopal; V. K. Chandrasekar; A. Venkatesan; M. Lakshmanan
UV Habitability of Possible Exomoons in Observed F-star Planetary Systems
In the present study we explore the astrobiological significance of F-type stars of spectral type between F5 V and F9.5 V, which possess Jupiter-type planets within or close to their climatological habitable zones. These planets, or at least a subset of them, may also possess rocky exomoons, which potentially offer habitable environments. Our work considers eight selected systems. The Jupiter-type planets in these systems are in notably different orbits with eccentricities ranging from 0.08 to 0.72. Particularly, we consider the stellar UV environments provided by the photospheric stellar radiation in regard to the circumstellar habitability of the system. According to previous studies, DNA is taken as a proxy for carbon-based macromolecules following the paradigm that extraterrestrial biology might be based on hydrocarbons. Thus, the DNA action spectrum is utilized to represent the impact of the stellar UV radiation. Atmospheric attenuation is taken into account based on parameterized attenuation functions. ...
Sato, Satoko
We present a new method for confirming transiting planets based on the combination of transit timing variations (TTVs) and dynamical stability. Correlated TTVs provide evidence that the pair of bodies is in the same physical system. Orbital stability provides upper limits for the masses of the transiting companions that are in the planetary regime. This paper describes a non-parametric technique for quantifying the statistical significance of TTVs based on the correlation of two TTV data sets. We apply this method to an analysis of the TTVs of two stars with multiple transiting planet candidates identified by Kepler. We confirm four transiting planets in two multiple-planet systems based on their TTVs and the constraints imposed by dynamical stability. An additional three candidates in these same systems are not confirmed as planets, but are likely to be validated as real planets once further observations and analyses are possible. If all were confirmed, these systems would be near 4:6:9 and 2:4:6:9 period commensurabilities. Our results demonstrate that TTVs provide a powerful tool for confirming transiting planets, including low-mass planets and planets around faint stars for which Doppler follow-up is not practical with existing facilities. Continued Kepler observations will dramatically improve the constraints on the planet masses and orbits and provide sensitivity for detecting additional non-transiting planets. If Kepler observations were extended to eight years, then a similar analysis could likely confirm systems with multiple closely spaced, small transiting planets in or near the habitable zone of solar-type stars.
Ford, Eric B.; Moorhead, Althea V.; Morehead, Robert C. [Astronomy Department, University of Florida, 211 Bryant Space Sciences Center, Gainesville, FL 32611 (United States); Fabrycky, Daniel C. [UCO/Lick Observatory, University of California, Santa Cruz, CA 95064 (United States); Steffen, Jason H. [Fermilab Center for Particle Astrophysics, P.O. Box 500, MS 127, Batavia, IL 60510 (United States); Carter, Joshua A.; Fressin, Francois; Holman, Matthew J.; Ragozzine, Darin; Charbonneau, David [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Lissauer, Jack J.; Rowe, Jason F.; Borucki, William J.; Bryson, Stephen T.; Burke, Christopher J.; Caldwell, Douglas A. [NASA Ames Research Center, Moffett Field, CA 94035 (United States); Welsh, William F. [Astronomy Department, San Diego State University, San Diego, CA 92182-1221 (United States); Allen, Christopher [Orbital Sciences Corporation/NASA Ames Research Center, Moffett Field, CA 94035 (United States); Batalha, Natalie M. [Department of Physics and Astronomy, San Jose State University, San Jose, CA 95192 (United States); Buchhave, Lars A., E-mail: email@example.com [Niels Bohr Institute, Copenhagen University, DK-2100 Copenhagen (Denmark); Collaboration: Kepler Science Team; and others
Compositional trends of ?-induced optical changes observed in chalcogenide glasses of binary As-S system
Compositional trends of ?-induced optical changes in chalcogenide glasses are studied with the binary As-S system. Effects of ?-irradiation and annealing are compared using the changes measured in the fundamental optical absorption edge region. It is shown that annealing near the glass transition temperature leads to bleaching of As-S glasses, while ?-irradiation leads to darkening; both depend on the glass composition and thermal history of the specimens. These results are explained in terms of competitive destruction¢polymerization transformations and physical aging occurring in As-S chalcogenide glasses under the influence of ?-irradiation.
Shpotyuk, M.; Shpotyuk, O.; Golovchak, Roman; McCloy, John S.; Riley, Brian J.
Cloud structures from defense meteorological satellite data
] . 32 Summary of Data Used in t'nis Investi- gation 37 Listing of I"ormat of File Identifica- tion for DMSP Digital Data Contained on NASA Prepared Magnetic Tape Listing of Format for Data Records of DMSP Digital Data 43 Boundary Values for DMSP... Dick- inson et al. , 1974] 28 10 Sample of DMSP ephemeris data for space- craft 6530 30 Block diagram of NSSL, WSR-57 system [after Wilk et al. , 1970] 33 12 Magnetic tape format of digital radar cia t a 35 13 Target area used for this investiga...
Phillips, John Frederick
41JUNE 2005AMERICAN METEOROLOGICAL SOCIETY | (not shown). This warm,
41JUNE 2005AMERICAN METEOROLOGICAL SOCIETY | (not shown). This warm, southerly flow accelerates to intense solar radiation, which lead to an early onset of melt. Therefore, an early and pro- longed meltW South 2004 (1), 2003 (2) Egedesminde 68.7┬║N, 52.8┬║W Central west 2004 (2), 2003 (1) Tasiilaq 65.6┬║N, 37
Box, Jason E.
NASA-Surface Meteorology and Solar Energy | Open Energy Information
Open Energy Info (EERE)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Powerstories onFocus Area EnergyMohawkaccrediationNASA-Surface Meteorology and
Meteorological Simulations of Ozone Episode Case Days during the 1996 Paso del Norte Ozone Study
Meteorological simulations centered around the border cities of El Paso and Ciudad Juarez have been performed during an ozone episode that occurred on Aug. 13,1996 during the 1996 Paso del Norte Ozone Study field campaign. Simulations were petiormed using the HOTMAC mesoscale meteorological model using a 1,2,4, and 8 km horizontal grid size nested mesh system. Investigation of the vertical structure and evolution of the atmospheric boundary layer for the Aug. 11-13 time period is emphasized in this paper. Comparison of model-produced wind speed profiles to rawirisonde and radar profiler measurements shows reasonable agreement. A persistent upper-level jet was captured in the model simulations through data assimilation. In the evening hours, the model was not able to produce the strong wind direction shear seen in the radar wind profiles. Based on virtual potential temperature profile comparisons, the model appears to correctly simulate the daytime growth of the convective mixed layer. However, the model underestimates the cooling of the surface layer at night. We found that the upper-level jet significantly impacted the turbulence structure of the boundary layer, leading to relatively high turbulent kinetic energy (tke) values aloft at night. The model indicates that these high tke values aloft enhance the mid-morning growth of the boundary layer. No upper-level turbulence measurements were available to verify this finding, however. Radar profiler-derived mixing heights do indicate relatively rapid morning growth of the mixed layer.
Brown, M.J.; Costigan, K.; Muller, C.; Wang, G.
Aerosol Observing System Upgraded
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout the BuildingInnovation 2011 Simulation Studies ofBusiness Forum2
Relationship between meteorological variables and total suspended and heavy metal particulates in Little Rock, Arkansas
RELATIONSHIP BETWEEN METEOROLOGICAL VARIABLES AND TOTAL SUSPENDED AND HEAVY NFXAL PARTICULATES IN LITTLE ROCK, ARKANSAS A Thesis MARY GWENDOLl'N AVERY Submitted to the Graduate College of Texas ALM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1985 Major Subject: Meteorology RELATIONSHIP BETWEEN METEOROLOGICAL VARIABLES AND TOTAL SUSPENDED AND HEAVY METAL PARTICULATES IN LITTLE ROCK, ARKANSAS A Thesis MARY GWENDOLYN AVERY Approved...
Avery, Mary Gwendolyn
Ensemble climate predictions using climate models and observational constraints
REVIEW Ensemble climate predictions using climate models and observational constraints BY PETER A. STOTT 1,* AND CHRIS E. FOREST 2 1 Hadley Centre for Climate Change (Reading Unit), Meteorology Building for constraining climate predictions based on observations of past climate change. The first uses large ensembles
E-Print Network 3.0 - area-specific 1982--86 meteorological Sample...
junior year ... Source: Droegemeier, Kelvin K. - School of Meteorology, University of Oklahoma Collection: Geosciences 5 INTERNATIONAL JOURNAL OF CLIMATOLOGY Int. J. Climatol. 19:...
E-Print Network 3.0 - air pollution meteorology Sample Search...
Search Powered by Explorit Topic List Advanced Search Sample search results for: air pollution meteorology Page: << < 1 2 3 4 5 > >> 1 Air Pollution Physics and Chemistry...
Weather Observations and a Tentative Meteorological Analysis of the Period May
understanding in three areas: past climate history and its impact on humanity; the course and causes.S. Douglas and H. H. Lamb 1979 Climatic Research Unit School of Environmental Sciences University of East with the study of natural and anthropogenic climate change. CRU is part of the School of Environmental Sciences
Feigon, Brooke
Snowpit Isotope Models at Jatunriti, 2012 Meteorological Station Observations, 2012-2013
for hydroelectricity, irrigation, and Andean population centers. However, climatic influences on precipitation delivery
Meteorological measurements in the vicinity of a coal burning power plant
High concentrations of sulfur dioxide (SO2) are commonly observed during the cool season in the vicinity of a 2.5 GW coal burning power plant located in the Mae Moh Valley of northern Thailand. The power plant is the source for nearly all of the observed SO2 since there are no other major industrial activities in this region. These high pollution fumigation events occur almost on a daily basis, usually lasting for several hours between late morning and early afternoon. One-hour average SO2 concentrations commonly exceed 1,000 micrograms/cu m. As a result, an increase in the number of respiratory type health complaints have been observed by local clinics during this time of the year. Meteorological data were acquired from a variety of observing platforms during an intensive field study from December 1993 to February 1994. The measurements included horizontal and vertical wind velocity, air temperature, relative humidity, and solar radiation. In addition, turbulent flux measurements were acquired by a sonic anemometer. SO2 measurements were made at seven monitoring sites scattered throughout the valley. These data were used to examine the atmospheric processes which are responsible for these high pollution fumigation events.
Crescenti, G.H.; Gaynor, J.E.
A Note on Several Meteorological Topics Related to Polar Regions
Analysis of the meteorology of Polar Regions is fundamental to the process of understanding the global climatology of the Earth and Earth-like planets. The nature of air circulation in a polar vortex is of preliminary importance. I have show that the local and continental spatiotemporal relationship between near surface wind events is self-organized criticality. In particular, the wind event size, wind event duration, and duration of quiescent wind event are well approximated by power-law distributions. On a continental scale, the wind events in the Antarctic tend to be self-organized criticality with ergodic properties. A similar self-organized criticality wind event was also found in Taylor Valley located at McMurdo Dry Valleys discovered by Captain Scott's expedition. Captain Scott's meteorological Terra Nova record was also examined. I have also revisited and re-analyzed wind events in Hornsund at Spitsbergen Island, in terms of marginal probabilities and marginal copulas which describe positive L\\'evy pr...
Sienicki, Krzysztof
The ALFALFA "Almost Darks" Campaign: Pilot VLA HI Observations of Five High Mass-to-Light Ratio Systems
We present VLA HI spectral line imaging of 5 sources discovered by ALFALFA. These targets are drawn from a larger sample of systems that were not uniquely identified with optical counterparts during ALFALFA processing, and as such have unusually high HI mass to light ratios. These candidate "Almost Dark" objects fall into 4 categories: 1) objects with nearby HI neighbors that are likely of tidal origin; 2) objects that appear to be part of a system of multiple HI sources, but which may not be tidal in origin; 3) objects isolated from nearby ALFALFA HI detections, but located near a gas-poor early-type galaxy; 4) apparently isolated sources, with no object of coincident redshift within ~400 kpc. Roughly 75% of the 200 objects without identified counterparts in the $\\alpha$.40 database (Haynes et al. 2011) fall into category 1. This pilot sample contains the first five sources observed as part of a larger effort to characterize HI sources with no readily identifiable optical counterpart at single dish resolutio...
Cannon, John M; Leisman, Lukas; Haynes, Martha P; Adams, Elizabeth A K; Giovanelli, Riccardo; Hallenbeck, Gregory; Janowiecki, Steven; Jones, Michael; J¾zsa, Gyula I G; Koopmann, Rebecca A; Nichols, Nathan; Papastergis, Emmanouil; Rhode, Katherine L; Salzer, John J; Troischt, Parker
Causes of variation in soil carbon simulations from CMIP5 Earth system models and comparison with observations
and benchmarks in Earth system models sitivity of the Amazonand benchmarks in Earth system models Thornton, P. E. ,simulations from CMIP5 Earth system models and comparison
Master thesis Solar Energy Meteorology Comparison of different methods to estimate cloud height for solar
Master thesis ┬Ł Solar Energy Meteorology Comparison of different methods to estimate cloud height: ┬Ę Interest in meteorology and solar energy ┬Ę Experiences with data handling and analysis ┬Ę Good programming for solar irradiance calculations In order to derive incoming solar irradiance at the earths surface
Peinke, Joachim
Solar Energy Prediction: An International Contest to Initiate1 Interdisciplinary Research on Compelling Meteorological2
of meteorological problems in-44 cluding wind energy, air pollution, winter hydrometeor classification, and storm puter scientists, and specifically machine learning and data mining researchers, are develop-18 ing of meteorological problems including wind energy,22 storm classification, winter hydrometeor classification, and air
Hamill, Tom
Agricultural and Forest Meteorology 181 (2013) 143151 Contents lists available at ScienceDirect
of the turbulence kinetic energy and fluxes above and beneath a tall open pine forest canopy Dean VickersAgricultural and Forest Meteorology 181 (2013) 143┬Ł151 Contents lists available at ScienceDirect Agricultural and Forest Meteorology journal homepage: www.elsevier.com/locate/agrformet Some aspects
Vickers, Dean
Workshop on Advances in Meteorology in Texas Department of Atmospheric Sciences, Texas A&M University
French ┬Ę Meteorological education Chair - Craig Epifanio (TAMU) 10:15 AMS education guidelines and NWS) 10:55 Mentoring broadcast meteorology interns: Bob French (KBTX) 11:15 Questions for discussion Center, radar room, broad- cast facility, and observatory will be available. ┬Ę Forecasting Chair - Gene
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY Q. J. R. Meteorol. Soc. 133: 101106 (2007)
R. Durranc a Meteorological and Hydrological Service, Croatia b Department of Geophysics, Faculty of Science, University of Zagreb, Croatia c Department of Atmospheric Sciences, University of Washington, WA Stiperski, Meteorological and Hydrological Service, Gric 3, HR -10000 Zagreb, Croatia. E-mail: stiperski
AFFILIATIONS: Neggers--Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; siebesma--Royal
AFFILIATIONS: Neggers--Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; siebesma--Royal Netherlands Meteorological Institute (KNMI), De Bilt, and Delft University of Technology, Delft, Netherlands; Heus--Max Planck Institut f├╝r Meteorologie, Hamburg, Germany CORRESPONDING AUTHOR: R
Siebesma, Pier
Master thesis in Leipzig Cooperation of TROPOS Leipzig and Solar Energy Meteorology at Uni Oldenburg
Master thesis in Leipzig ┬Ł Cooperation of TROPOS Leipzig and Solar Energy Meteorology at Uni in meteorology, satellite remote sensing and solar energy ┬Ę Experiences with data handling and analysis ┬Ę Good at the surface can be determined from satellite data using the Heliosat method, which is widely used for solar
In operando observation system for electrochemical reaction by soft X-ray absorption spectroscopy with potential modulation method
In order to investigate local structures of electrolytes in electrochemical reactions under the same scan rate as a typical value 100 mV/s in cyclic voltammetry (CV), we have developed an in operando observation system for electrochemical reactions by soft X-ray absorption spectroscopy (XAS) with a potential modulation method. XAS spectra of electrolytes are measured by using a transmission-type liquid flow cell with built-in electrodes. The electrode potential is swept with a scan rate of 100 mV/s at a fixed photon energy, and soft X-ray absorption coefficients at different potentials are measured at the same time. By repeating the potential modulation at each fixed photon energy, it is possible to measure XAS of electrochemical reaction at the same scan rate as in CV. We have demonstrated successful measurement of the Fe L-edge XAS spectra of aqueous iron sulfate solutions and of the change in valence of Fe ions at different potentials in the Fe redox reaction. The mechanism of these Fe redox processes is discussed by correlating the XAS results with those at different scan rates.
Nagasaka, Masanari, E-mail: email@example.com; Kosugi, Nobuhiro [Institute for Molecular Science, Myodaiji, Okazaki 444-8585 (Japan); The Graduate University for Advanced Studies, Myodaiji, Okazaki 444-8585 (Japan); Yuzawa, Hayato; Horigome, Toshio [Institute for Molecular Science, Myodaiji, Okazaki 444-8585 (Japan)
Comparison of the ESP Benchmark with Observed System Utilization Adrian T. Wong, William T. C. Kramer, Leonid Oliker, and David H. Bailey
Comparison of the ESP Benchmark with Observed System Utilization Adrian T. Wong, William T. C. Kramer, Leonid Oliker, and David H. Bailey National Energy Research Scientific Computing Center Lawrence of configuration changes and software upgrades in existing systems, but are evolving this benchmark to provide
Bailey, David H.
Time changes in gradient and observed winds
TIME CHANGES IN GRADIENT AND OBSERVED WINDS A Thesis by RONALD DALE CARLSON Submitted to the Graduate College of Texas A&M University in partial fulfillm=n of the requirement for the degree of MASTER OF SCIENCE MAY 1972 Major Subject...: Meteorology TIME CHANGES IN GRADIENT AND OBSERVED WINDS A Thesis by RONALD D. CARLSON Approved as to style and content by: (Chairman of Co , ee) (Member) (Member) May 1972 ABSTRACT Time Changes in Gradient and Observed Winds. (May 1972) Ronald Dale...
Carlson, Ronald Dale
Stratospheric profiles of nitrogen dioxide observed by Optical Spectrograph and Infrared Imager System on the Odin satellite
Stratospheric profiles of nitrogen dioxide observed by Optical Spectrograph and Infrared Imager of nitrogen dioxide in the 19┬Ł40 km altitude range are successfully retrieved over the globe from Optical, iterative onion peel Citation: Sioris, C. E., et al., Stratospheric profiles of nitrogen dioxide observed
Chance, Kelly
Surface Meteorology, Barrow, Alaska, Area A, B, C and D, Ongoing from 2012
Meteorological data are being collected at several points within four intensive study areas in Barrow. These data assist in the calculation of the energy balance at the land surface and are also useful as inputs into modeling activities.
Hinzman, Larry; Busey, Bob; Cable, William; Romanovsky, Vladimir
Impact of land use change on a hydro-meteorological event in Kampala, Uganda
Impact of land use change on a hydro-meteorological event in Kampala, Uganda Problem statement Kampala is the capital city of Uganda on the northern shores of Lake Victoria. Here, future climate change
Jetten, Victor
Ozone predictabilities due to meteorological uncertainties in the Mexico City basin using ensemble forecasts
The purpose of the present study is to investigate the sensitivity of ozone (O3)[(O subscript 3)] predictions in the Mexico City Metropolitan Area (MCMA) to meteorological initial uncertainties and planetary boundary layer ...
Bei, Naifang
Testing a Coupled Global-limited-area Data Assimilation System Using Observations from the 2004 Pacific Typhoon Season
Tropical cyclone (TC) track and intensity forecasts have improved in recent years due to increased model resolution, improved data assimilation, and the rapid increase in the number of routinely assimilated observations over oceans. The data...
Holt, Christina
New Observations of Extra-Disk Molecular Gas in Interacting Galaxy Systems, Including a Two-Component System in Stephan's Quintet
We present new CO (1 - 0) observations of eleven extragalactic tails and bridges in nine interacting galaxy systems, almost doubling the number of such features with sensitive CO measurements. Eight of these eleven features were undetected in CO to very low CO/HI limits, with the most extreme case being the NGC 7714/5 bridge. This bridge contains luminous H II regions and has a very high HI column density (1.6 X 10^21 cm^-2 in the 55" CO beam), yet was undetected in CO to rms T(R)* = 2.4 mK. The HI column density is higher than standard H2 and CO self-shielding limits for solar-metallicity gas, suggesting that the gas in this bridge is metal-poor and has an enhanced N(H2)/I(CO) ratio compared to the Galactic value. Only one of the eleven features in our sample was unambiguously detected in CO, a luminous HI-rich star formation region near an optical tail in the compact group Stephan's Quintet. We detect CO at two widely separated velocities in this feature, at ~6000 km/s and ~6700 km/s. Both of these components have HI and H-alpha counterparts. These velocities correspond to those of galaxies in the group, suggesting that this gas is material that has been removed from two galaxies in the group. The CO/HI/H-alpha ratios for both components are similar to global values for spiral galaxies.
B. J. Smith; C. Struck
Daily pollution forecast using optimal meteorological data at synoptic and local scales
We present a simple framework to easily pre-select the most essential data for accurately forecasting the concentration of the pollutant PM$_{10}$, based on pollutants observations for the years 2002 until 2006 in the metropolitan region of Lisbon, Portugal. Starting from a broad panoply of different data sets collected at several meteorological stations, we apply a forward stepwise regression procedure that enables us not only to identify the most important variables for forecasting the pollutant but also to rank them in order of importance. We argue the importance of this variable ranking, showing that the ranking is very sensitive to the urban spot where measurements are taken. Having this pre-selection, we then present the potential of linear and non-linear neural network models when applied to the concentration of pollutant PM$_{10}$. Similarly to previous studies for other pollutants, our validation results show that non-linear models in average perform as well or worse as linear models for PM$_{10}$. F...
Russo, Ana; Raischel, Frank; Trigo, Ricardo; Mendes, Manuel
438 IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 15, NO. 3, MAY 2007 Nonlinear Observer-Based Control of Load
--Homogeneous charge compression ignition (HCCI) engines, nonlinear feedback control, nonlinear observer, positive semidefinite Lyapunov functions, stability. I. INTRODUCTION HOMOGENEOUS charge compression ignition (HCCI particulate matter (PM) emis- sions due to low cylinder peak temperature (below 1700 K). Control of the HCCI
Stefanopoulou, Anna
Observed Characteristics of Clouds and Precipitating Systems Associated with the Tropical Circulation in Global Models and Reanalyses
This dissertation presents a series of work related to the representation of the Hadley circulation (HC) in atmospheric reanalyses and general circulation models (GCMs), with connections to the underlying tropical and subtropical cloud systems...
Stachnik, Justin Paul
Analysis of 2011 Meteorological Data from the Knolls Atomic Power Laboratory and Kesselring Site Operations Facilities
Both the Knolls Atomic Power Laboratory (KAPL) in Schenectady, NY and the Kesselring Site Operations (KSO) facility near Ballston Spa, NY are required to estimate the effects of hypothetical emissions of radiological material from their respective facilities by the US Environmental Protection Agency (EPA), which regulates these facilities. An atmospheric dispersion model known as CAP88, which was developed and approved by the EPA for such purposes, is used by KAPL and KSO to meet this requirement. CAP88 calculations over a given time period are based on statistical data on the meteorological conditions for that period. Both KAPL and KSO have on-site meteorological towers which take atmospheric measurements at a frequency ideal for EPA regulatory model input. However, an independent analysis and processing of the meteorological data from each tower is required to derive a data set appropriate for use in the CAP88 model. The National Atmospheric Release Advisory Center (NARAC) was contracted by KAPL to process the on-site data for the calendar year 2011. The purpose of this document is to: (1) summarize the procedures used in the preparation/analysis of the 2011 meteorological data; and (2) document adherence of these procedures to the guidance set forth in 'Meteorological Monitoring Guidance for Regulatory Modeling Applications', EPA document - EPA-454/R-99-005 (EPA-454). This document outlines the steps in analyzing and processing meteorological data from the Knolls Atomic Power Laboratory and Kesselring Site Operations facilities into a format that is compatible with the steady state dispersion model CAP88. This process is based on guidance from the EPA regarding the preparation of meteorological data for use in regulatory dispersion models. The analysis steps outlined in this document can be easily adapted to process data sets covering time period other than one year. The procedures will need to be modified should the guidance in EPA-454 be updated or revised.
Aluzzi, F J
Ensemble-Based Observation Targeting for Improving Ozone Prediction in Houston and the Surrounding Area
, observation targeting, observational impact factor. 1. Introduction The severity of air pollution situations is deter- mined by a complicated interaction among three factors: the emissions to the atmosphere, chemical high-pollution concentrations form on a given day is dominated principally by meteorological processes
Climatic regulation of the Black Sea hydro-meteorological and ecological properties at interannual-to-decadal time scales
Climatic regulation of the Black Sea hydro-meteorological and ecological properties at interannual Available online 3 March 2006 Abstract An examination of a wide spectrum of hydro
Dippner, Joachim W.
The formation and maintenance of single-thread tie channels entering floodplain lakes: observations from three diverse river systems
Tie channels connect rivers to floodplain lakes on many lowland rivers and thereby play a central role in floodplain sedimentology and ecology, yet they are generally unrecognized and little studied. here we report the results of field studies focused on tie channel origin and morphodynamics in three contrasting systems: the Middle Fly River, Papua New Guinea, the Lower Mississippi River, and Birch Creek in Alaska. Across these river systems, tie channels vary by an order of magnitude in size but exhibit the same characteristic morphology and appear to develop and evolve by a similar set of processes. In all three systems, the channels are characterized by a narrow, leveed single-thread morphology with maximum width approximately one tenth the width of the mainstem river. The channels typically have a V shaped cross-section, unlike most fluvial channels. These channels develop as lakes become isolated from the river by sedimentation. Narrowing of the connection between river and lake causes a sediment-laden jet to develop. Levees develop along the margins of the jet leading to channel emergence and eventual levee aggradation to the height of the mainstem levees. Bi-directional flow in these channels is common. Outflows from the lake scour sediment and prevent channel blockage. We propose that channel geometry and size are then controlled by a dynamic balance between channel narrowing by suspended sediment deposition and incision and widening by mass failure of banks during outflows. Tie channels are laterally stable and may convey flow for hundreds to a few thousand of years.
Rowland, Joel C [Los Alamos National Laboratory; Dietrich, William E [UC BERKELEY; Day, Geoff [NEWCREST MINING; Parker, Gary [UNIV OF ILLINOIS
CURRICULUM VITAE -RYAN H SMITH Atlantic Oceanographic and Meteorological Laboratory
. Implementation of moored oceanographic sensor arrays. Development of real-time oceanographic monitoring stations for Understanding Coral Reef Dynamics and Processes: Photo-Systems to Coral Reef Systems, 5, 415-431. contributing
Using radiation hydrodynamics simulations, we explore the evolution of circumplanetary disks around wide-orbit proto-gas giants. At large distances from the star ({approx}100 AU), gravitational instability followed by disk fragmentation can form low-mass substellar companions (massive gas giants and/or brown dwarfs) that are likely to host large disks. We examine the initial evolution of these subdisks and their role in regulating the growth of their substellar companions, as well as explore consequences of their interactions with circumstellar material. We find that subdisks that form in the context of GIs evolve quickly from a very massive state. Long-term accretion rates from the subdisk onto the proto-gas giant reach {approx}0.3 Jupiter masses kyr{sup -1}. We also find consistency with previous simulations, demonstrating that subdisks are truncated at {approx}1/3 of the companion's Hill radius and are thick, with (h/r) of {approx}> 0.2. The thickness of subdisks draws to question the use of thin-disk approximations for understanding the behavior of subdisks, and the morphology of subdisks has implications for the formation and extent of satellite systems. These subdisks create heating events in otherwise cold regions of the circumstellar disk and serve as planet formation beacons that can be detected by instruments such as ALMA.
Shabram, Megan; Boley, Aaron C. [Department of Astronomy, University of Florida, 211 Bryant Space Center, Gainesville, FL 32611 (United States)] [Department of Astronomy, University of Florida, 211 Bryant Space Center, Gainesville, FL 32611 (United States)
AUGUST 2002 705H A N S T R U M E T A L . 2002 American Meteorological Society
-Season Tornadoes of California and Southern Australia BARRY N. HANSTRUM Bureau of Meteorology, Perth, Western Australia and Western Australia combined (gray) for each month for the 10 yr, 1987Ł96. FIG. 2. Map showing Australia, Australia GRAHAM A. MILLS Bureau of Meteorology Research Centre, Melbourne, Victoria, Australia
Doswell III, Charles A.
The New Mexico State Climate Office and CARSAME Portal for Community Access to Meteorological, Satellite, and Model Archives
The New Mexico State Climate Office and CARSAME Portal for Community Access to Meteorological and Environmental Sciences New Mexico State University email@example.com Our community data portal is using in Agriculture, Meteorology and Environment (CARSAME) and New Mexico Climate Center but not available
VOL. 60, NO. 24 15 DECEMBER 2003J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S 2003 American Meteorological Society 2929
American Meteorological Society 2929 Convective Systems over the South China Sea: Cloud-Resolving Model for the May case. However, more rainfall is simulated for the June case. Net radiation (solar heating of the SCSMEX convective systems. 1. Introduction The global hydrological cycle is central to the earth
Johnson, Richard H.
Abstract--Meteorological time series are characterized by important spatial and temporal variation. Model determination and
of the meteorological time series used, which includes the use of statistical techniques to detect whether there exist for the time series using an evolutionary algorithm that adaptively adjusts some of its parameters during its and temperatures collected in a region of Romania. The results are promising for the analysis of such time series
Fernandez, Thomas
Partial Support for the Federal Committee for Meteorological Services and Supporting Research
DOE E-link Report Number DOE/ER62778 1999-2012 Please see attached Final Technical Report (size too large to post here). Annual Products Provided to DOE: Federal Plan for Meteorological Services and Supporting Research; National Hurricane Operations Plan; Interdepartmental Hurricane Conference Summary Report. All reports and publications can be found on the OFCM website, www.ofcm.noaa.gov.
Williamson, Samuel P
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY Q. J. R. Meteorol. Soc. 133: 21372141 (2007)
) Published online in Wiley InterScience (www.interscience.wiley.com) DOI: 10.1002/qj.179 A note on boundaryDepartment of Meteorology, University of Reading, UK bMet Office, Exeter, UK Abstract: The interaction between extratropical distributions and comparing the low-level winds, the differences are exposed and both of the proposed mechanisms
Reading, University of
15 NOVEMBER 2003 3585W A N G E T A L . 2003 American Meteorological Society
tropical to subtropical region is a relatively effective area for off-equatorial wind stress to generate-Equatorial Wind XIAOCHUN WANG* AND FEI-FEI JIN Department of Meteorology, School of Ocean and Earth Science and subtropical wind stress forcing. The results show that the wind stress forcing in the tropical and subtropical
Improvement of the European Wind Atlas Method by Spatial Interpolation of Meteorological Station Data
Improvement of the European Wind Atlas Method by Spatial Interpolation of Meteorological Station Data Hans Georg Beyer*, Matthias Bromeis, Detlev Heinemann, Thomas Pahlke**, Hans-Peter Waldl Energy of a spatial wind energy potential. We have investigated two types of spatial interpolation techniques
Heinemann, Detlev
Record-setting algal bloom in Lake Erie caused by agricultural and meteorological trends consistent with
Record-setting algal bloom in Lake Erie caused by agricultural and meteorological trends consistent) In 2011, Lake Erie experienced the largest harmful algal bloom in its recorded history, with a peak blooms in Lake Erie. extreme precipitation events | climate change | aquatic ecology | Microcystis sp
Selected Studies in Mountain Meteorology From Downslope Windstorms to Air Pollution Transport
strong wind shear and triggers shear-flow instability, which leads to the formation of a turbulent wake of Innsbruck by Alexander Gohm Innsbruck, April 2010 #12;#12;To Eva mountain wind i #12;ii #12;Preface in the field of mountain meteorology form the basis of this habilitation thesis. The overall goal is to improve
Gohm, Alexander
Agricultural and Forest Meteorology 113 (2002) 223243 Energy balance closure at FLUXNET sites
Agricultural and Forest Meteorology 113 (2002) 223┬Ł243 Energy balance closure at FLUXNET sites Kell, USA p Department of Forest Science and Resources, University of Tuscia, 1-01100 Viterbo, Italy q Abstract A comprehensive evaluation of energy balance closure is performed across 22 sites and 50 site
Cohen, Ronald C.
Agricultural and Forest Meteorology 123 (2004) 159176 Comparison of different chamber techniques for
Agricultural and Forest Meteorology 123 (2004) 159┬Ł176 Comparison of different chamber techniques ├?strengl, Waldemar Zieglerm, Peter Anthonim, Anders Lindrothn, Pertti Haria a Department of Forest Ecology Sciences and Energy Research, Weizmann Institute of Science, P.O. Box 26, Rehovot 76100, Israel h
Yakir, Dan
Meteorologically driven trends in sea level rise Alexander S. Kolker1
Meteorologically driven trends in sea level rise Alexander S. Kolker1 and Sultan Hameed2 Received] Determining the rate of global sea level rise (GSLR) during the past century is critical to understanding a suite of coastal oceanographic processes. These findings reduce variability in regional sea level rise
Hameed, Sultan
DECEMBER 2004 1117D A I E T A L . 2004 American Meteorological Society
Drought Severity Index for 1870Ł2002: Relationship with Soil Moisture and Effects of Surface Warming AIGUO.g., meteorological, hydrological, and agricultural droughts; see Wilhite 2000 and Keyantash and Dracup 2002 (Manuscript received 24 February 2004, in final form 26 May 2004) ABSTRACT A monthly dataset of Palmer Drought
Dai, Aiguo
1827DECEMBER 2003AMERICAN METEOROLOGICAL SOCIETY | otating tanks have been in use for many years
1827DECEMBER 2003AMERICAN METEOROLOGICAL SOCIETY | R otating tanks have been in use for many years in a wide variety of sizes, from small record-player-type turntables with 10-cm-diameter tanks to the world's largest turntable with its 13-m-diameter tank at Grenoble, France (Sommeria 2001). Rotating table
Schubert, Wayne H.
1 STATISTICAL METHODS FOR RELATING TEMPERATURE EXTREMES TO LARGE-SCALE METEOROLOGICAL PATTERNS Rick Extreme Value Analysis: Block Maxima (3) Conditional Extreme Value Analysis: Peaks over Threshold (4) Application to California Temperature Extremes (5) Remaining Work #12;3 #12;4 #12;5 (1) Introduction
Katz, Richard
Downscaling, Data Fusion, and Data Assimilation in Hydro-meteorology
Downscaling, Data Fusion, and Data Assimilation in Hydro (1997 -) GPM (2014 -) PR #12;3 GPM: a multi-satellite mission extending beyond the tropics #12;4 DPR of precipitation #12;Multi-sensor Data Fusion Problem ┬Ę Optimal merging of multi-sensor precipitation observations
Improvements in distribution of meteorological data using application layer multicast
in so many applications, the impact of these limitations is often substantial. This thesis removes these limitations by suggesting improvements in the IDD system and the LDM. We present new algorithms for constructing an application-layer data...
Shah, Saurin Bipin
Baldassare Bacchi and Roberto Ranzi Hydrology and Earth System Sciences, 7(6), 785798 (2003) EGU
Baldassare Bacchi and Roberto Ranzi 784 Hydrology and Earth System Sciences, 7(6), 785798 (2003) ┬® EGU Hydrological and meteorological aspects of floods in the Alps: an overview Baldassare Bacchi and summarises recent research on meteorological and hydrological aspects of floods in the Alps. The research
ARM - Mobile Aerosol Observing System
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC : XDCResearchWarmingMethane Background Information Outreach Home
ARM - Surface Aerosol Observing System
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC :ProductsSCM Forcing DataScienceSteering Committee RelatedFacilitiesSurface
Description of Atmospheric Conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS)
Atmospheric conditions at the site of a cosmic ray observatory must be known for reconstructing observed extensive air showers. The Global Data Assimilation System (GDAS) is a global atmospheric model predicated on meteorological measurements and numerical weather predictions. GDAS provides altitude-dependent profiles of the main state variables of the atmosphere like temperature, pressure, and humidity. The original data and their application to the air shower reconstruction of the Pierre Auger Observatory are described. By comparisons with radiosonde and weather station measurements obtained on-site in Malargue and averaged monthly models, the utility of the GDAS data is shown.
Abreu, P.; /Lisbon, IST; Aglietta, M.; /Turin U. /INFN, Turin; Ahlers, M.; /Wisconsin U., Madison; Ahn, E.J.; /Fermilab; Albuquerque, I.F.M.; /Sao Paulo U.; Allard, D.; /APC, Paris; Allekotte, I.; /Buenos Aires, CONICET; Allen, J.; /New York U.; Allison, P.; /Ohio State U.; Almela, A.; /Natl. Tech. U., San Nicolas /Buenos Aires, CONICET; Alvarez Castillo, J.; /Mexico U., ICN /Santiago de Compostela U.
ICOWES2013 Conference 17-19 June 2013, Lyngby WINDS OBSERVED IN THE NORTHERN EUROPEAN SEAS WITH
ICOWES2013 Conference 17-19 June 2013, Lyngby 1 WINDS OBSERVED IN THE NORTHERN EUROPEAN SEAS and SSM/I have been compared to offshore meteorological data. For the final satellite-based wind atlas 9 shear observed from the lidars. #12;Another aim was to produce a wind atlas based on satellite data
Cloud features and zonal wind measurements of Saturn's atmosphere as observed by Cassini/VIMS
Cloud features and zonal wind measurements of Saturn's atmosphere as observed by Cassini/VIMS D. S Cassini's Visual and Infrared Mapping Spectrometer (VIMS), focusing on the meteorology of the features seen in the 5 mm spectral window. We present VIMS mosaics and discuss the morphology and general
Choi, David S.
Comments on: Antarctic Automatic Weather Station Program: 30 Years of Polar Observations
Recently Lazzara et al. (2012) presented a review of the technical and scientific progress in deployment, data collection and analysis of the Automated Weather Stations (AWS) in the Antarctic. In the subsection entitled Science Applications using AWS Observations, the authors briefly account for several scientific occurrences of meteorological data collected by AWS.
STATUS, EVALUATION AND NEW DEVELOPMENTS IN THE AUTOMATED CLOUD OBSERVATIONS IN THE NETHERLANDS Wiel Netherlands Meteorological Institute (KNMI), Instrumental Department, (1) firstname.lastname@example.com, P.O. Box 201, 3730 AE De Bilt, The Netherlands (2) KNMI, Climate Research Department, email@example.com (3) KNMI
Wauben, Wiel
1411Bulletin of the American Meteorological Society 1. Introduction
, the contribution of polarimetric radars to the improvement of quantitative precipitation measurements to generate a high-level specification for the next generation of weather radars in Europe. *DLR, Institut f├╝r of the management committee for the COST action 75 (COST 75) on advanced weather radar systems was held in Brussels
The design and implementation of a demonstration supplementary control system
The overall goal of the Chestnut Ridge Supplemental Control System (SCS) demonstration project was to demonstrate how an existing monitoring network, existing air quality models, and existing meteorological forecasting ...
Ruane, Michael Frederick
/11/2004 page 3 of 17 1 INTRODUCTION KNMI (Royal Netherlands Meteorological Institute) has upgraded itsUPGRADE AND EVALUATION OF A LIGHTNING DETECTION SYSTEM Hans Beekhuis Iwan Holleman the Netherlands
Solar Resource & Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); Los Angeles, California (Data)
Stoffel, T.; Andreas, A.
Solar Resource & Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); Milford, Utah (Data)
Solar Resource & Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); La Ola Lanai, Hawaii (Data)
Solar Resource & Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); Cedar City, Utah (Data)
Solar Resource & Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); Kalaeloa Oahu, Hawaii (Data)
Solar Resource & Meteorological Assessment Project (SOLRMAP): Sun Spot Two; Swink, Colorado (Data)
Hanford Meteorological Station computer codes: Volume 1, The GEN computer code
The Hanford Meteorological Station, operated by Pacific Northwest Laboratory, issues general weather forecasts twice a day. The GEN computer code is used to archive the 24-hour forecasts and apply quality assurance checks to the forecast data. This code accesses an input file, which contains the date and hour of the previous forecast, and an output file, which contains 24-hour forecasts for the current month. As part of the program, a data entry form consisting of 14 fields that describe various weather conditions must be filled in. The information on the form is appended to the current 24-hour monthly forecast file, which provides an archive for the 24-hour general weather forecasts. This report consists of several volumes documenting the various computer codes used at the Hanford Meteorological Station. This volume describes the implementation and operation of the GEN computer code at the station.
Buck, J.W.; Andrews, G.L.
Global-to-local incompatibility, monogamy of entanglement, and ground-state dimerization: Theory and observability of quantum frustration in systems with competing interactions
Frustration in quantum many body systems is quantified by the degree of incompatibility between the local and global orders associated, respectively, to the ground states of the local interaction terms and the global ground state of the total many-body Hamiltonian. This universal measure is bounded from below by the ground-state bipartite block entanglement. For many-body Hamiltonians that are sums of two-body interaction terms, a further inequality relates quantum frustration to the pairwise entanglement between the constituents of the local interaction terms. This additional bound is a consequence of the limits imposed by monogamy on entanglement shareability. We investigate the behavior of local pair frustration in quantum spin models with competing interactions on different length scales and show that valence bond solids associated to exact ground-state dimerization correspond to a transition from generic frustration, i.e. geometric, common to classical and quantum systems alike, to genuine quantum frustration, i.e. solely due to the non-commutativity of the different local interaction terms. We discuss how such frustration transitions separating genuinely quantum orders from classical-like ones are detected by observable quantities such as the static structure factor and the interferometric visibility.
S. M. Giampaolo; B. C. Hiesmayr; F. Illuminati
24 M meteorological tower data report period: January--December, 1994
This report was prepared by the Desert Research Institute (DRI) for the U.S. Department of Energy (DOE). It summarizes meteorological data collected at the 24 meter tower at the Nevada Test Site Hazardous Material Spill Center (HAZMAT) located at Frenchman Flat near Mercury, Nevada, approximately 75 miles northwest of Las Vegas, Nevada. The tower was originally installed in July, 1993 to characterize baseline conditions for an EPA sponsored experimental research program at the HAZMAT.
Freeman, D.; Bowen, J.; Egami, R. [and others] [and others
Mesoscale convective complex vs. non-mesoscale convective complex thunderstorms: a comparison of selected meteorological variables
MESOSCALE CONVECTIVE CCMPLLX VS. NON-MESOSCALE CONVECTIVE COMPLEX THUNDERSTORMS: A COMPARISON OF SELECTED METEOROLOGICAL VARIABLES A Thesis MICHAkL EUGENE JJOOFARD Submitted to the Graduate College of Texas AJkM University in partial... by MICHAEL EUGENE HOOFARD Approved as to style and content by: a ter . enry (Chairman of Committee) %~5 44 c5 c usan gur c (Member) ona . oc ing (Member) ames . cogg (Head of Department) August 1986 ABSTRACT Nesoscale Convective Complex vs. Non...
Hoofard, Michael Eugene
Use of ARM observations and numerical models to determine radiative and latent heating profiles of mesoscale convective systems for general circulation models
This three-year project, in cooperation with Professor Bob Houze at University of Washington, has been successfully finished as planned. Both ARM (the Atmospheric Radiation Measurement Program) data and cloud-resolving model (CRM) simulations were used to identify the water budgets of clouds observed in two international field campaigns. The research results achieved shed light on several key processes of clouds in climate change (or general circulation models), which are summarized below. 1. Revealed the effect of mineral dust on mesoscale convective systems (MCSs) Two international field campaigns near a desert and a tropical coast provided unique data to drive and evaluate CRM simulations, which are TWP-ICE (the Tropical Warm Pool International Cloud Experiment) and AMMA (the African Monsoon Multidisciplinary Analysis). Studies of the two campaign data were contrasted, revealing that much mineral dust can bring about large MCSs via ice nucleation and clouds. This result was reported as a PI presentation in the 3rd ASR Science Team meeting held in Arlington, Virginia in March 2012. A paper on the studies was published in the Journal of the Atmospheric Sciences (Zeng et al. 2013). 2. Identified the effect of convective downdrafts on ice crystal concentration Using the large-scale forcing data from TWP-ICE, ARM-SGP (the Southern Great Plains) and other field campaigns, Goddard CRM simulations were carried out in comparison with radar and satellite observations. The comparison between model and observations revealed that convective downdrafts could increase ice crystal concentration by up to three or four orders, which is a key to quantitatively represent the indirect effects of ice nuclei, a kind of aerosol, on clouds and radiation in the Tropics. This result was published in the Journal of the Atmospheric Sciences (Zeng et al. 2011) and summarized in the DOE/ASR Research Highlights Summaries (see http://www.arm.gov/science/highlights/RMjY5/view). 3. Used radar observations to evaluate model simulations In cooperation with Profs. Bob Houze at University of Washington and Steven Rutledge at Colorado State University, numerical model results were evaluated with observations from W- and C-band radars and CloudSat/TRMM satellites. These studies exhibited some shortcomings of current numerical models, such as too little of thin anvil clouds, directing the future improvement of cloud microphysics parameterization in CRMs. Two papers of Powell et al (2012) and Zeng et al. (2013), summarizing these studies, were published in the Journal of the Atmospheric Sciences. 4. Analyzed the water budgets of MCSs Using ARM data from TWP-ICE, ARM-SGP and other field campaigns, the Goddard CRM simulations were carried out to analyze the water budgets of clouds from TWP-ICE and AMMA. The simulations generated a set of datasets on clouds and radiation, which are available http://cloud.gsfc.nasa.gov/. The cloud datasets were available for modelers and other researchers aiming to improve the representation of cloud processes in multi-scale modeling frameworks, GCMs and climate models. Special datasets, such as 3D cloud distributions every six minutes for TWP-ICE, were requested and generated for ARM/ASR investigators. Data server records show that 86,206 datasets were downloaded by 120 users between April of 2010 and January of 2012. 5. MMF simulations The Goddard MMF (multi-scale modeling framework) has been improved by coupling with the Goddard Land Information System (LIS) and the Goddard Earth Observing System Model, Version 5 (GOES5). It has also been optimized on NASA HEC supercomputers and can be run over 4000 CPUs. The improved MMF with high horizontal resolution (1 x 1 degree) is currently being applied to cases covering 2005 and 2006. The results show that the spatial distribution pattern of precipitation rate is well simulated by the MMF through comparisons with satellite retrievals from the CMOPRH and GPCP data sets. In addition, the MMF results were compared with three reanalyses (MERRA, ERA-Interim and CFSR). Although the MMF tends
Tao, Wei-Kuo; Houze, Robert, A., Jr.; Zeng, Xiping
The recent proliferation of affordable data gathering and storage media and powerful computing systems have provided a solid foundation for
, genetic algorithms (GAs), ant colony systems, Bayes networks, rule induction, etc. There are pros and cons are various natural phenomena or systems. Examples can be found in meteorology, earth sciences, astronomy
Triantaphyllou, Evangelos
MICHAEL E. MANN Department of Meteorology, and Earth and Environmental Systems Institute, The Pennsylvania State University,
a millennial simulation of the GKSS ECHAM and the global Hamburg Ocean Primitive Equation (ECHO-G) coupled to their own (GKSS ECHO-G) simulations might be involved in the skillful MRWA05 outcome. Addition- ally, ZVS07
Field observations and lessons learned
This presentation outlines observations and lessons learned from the Megaports program. It provides: (1) details of field and technical observations collected during LANL field activities at ports around the world and details of observations collected during radiation detections system testing at Los Alamos National Laboratory; (2) provides suggestions for improvement and efficiency; and (3) discusses possible program execution changes for more effective operations.
Nielsen, Joh B [Los Alamos National Laboratory
3892 VOLUME 17J O U R N A L O F C L I M A T E 2004 American Meteorological Society
and Environmental Engineering, University of California, Irvine, Irvine, California E. SMALL Department considerable attention in the hydro- meteorology community. This is partially because most of the monsoon
Small, Eric
Solar Technology Acceleration Center (SolarTAC): Solar Resource & Meteorological Assessment Project (SOLRMAP); Aurora, Colorado (Data)
Located in Colorado, near Denver International Airport, SolarTAC is a private, member-based, 74-acre outdoor facility where the solar industry tests, validates, and demonstrates advanced solar technologies. SolarTAC was launched in 2008 by a public-private consortium, including Midwest Research Institute (MRI). As a supporting member of SolarTAC, the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) has established a high quality solar and meteorological measurement station at this location. This Solar Resource and Meteorological Assessment Project (SOLRMAP) provides high quality measurements to support deployment of power projects in the United States. The no-funds-exchanged collaboration brings NREL solar resource assessment expertise together with industry needs for measurements. The end result is high quality data sets to support the financing, design, and monitoring of large scale solar power projects for industry in addition to research-quality data for NREL model development. NREL provides consultation for instrumentation and station deployment, along with instrument calibrations, data acquisition, quality assessment, data distribution, and summary reports. Industry participants provide equipment, infrastructure, and station maintenance.
Numerical experiments with assimilation of the mean and unresolved meteorological conditions into large-eddy simulation model
Micrometeorology, city comfort, land use management and air quality monitoring increasingly become important environmental issues. To serve the needs, meteorology needs to achieve a serious advance in representation and forecast on micro-scales (meters to 100 km) called meteorological terra incognita. There is a suitable numerical tool, namely, the large-eddy simulation modelling (LES) to support the development. However, at present, the LES is of limited utility for applications. The study addresses two problems. First, the data assimilation problem on micro-scales is investigated as a possibility to recover the turbulent fields consistent with the mean meteorological profiles. Second, the methods to incorporate of the unresolved surface structures are investigated in a priopi numerical experiments. The numerical experiments demonstrated that the simplest nudging or Newtonian relaxation technique for the data assimilation is applicable on the turbulence scales. It is also shown that the filtering property of...
Esau, Igor
ARCHITECTURE OF THE MERCURY MESOSCALE METEOROLOGICAL DATA FUSION C. Fields, C. Cavendish, M. Coombs, T. Eskridge, R. Hartley, H. Pfeiffer, and C. Soderlund
ARCHITECTURE OF THE MERCURY MESOSCALE METEOROLOGICAL DATA FUSION C. Fields, C. Cavendish, M. Coombs Atmospheric Sciences Laboratory White Sands Missile Range, NM 88002-5501 USA 1. INTRODUCTION The MERCURY) that require meteorological data as input (McWilliams or al., this volume). MERCURY addresses, at the mesoscale
Hartley, Roger
THE CLOUDSAT MISSION AND THE A-TRAIN A New Dimension of Space-Based Observations of Clouds and Precipitation
the wind fields (e.g., Menzel 2001). These large cloud systems are not mere passive tracers of wide. Clouds also dominate the energy budget of the planet. They tend to cool the earth by reflecting sunlight, California; MACE, SASSEN, AND WANG-- Department of Meteorology, University of Utah, Salt Lake City, Utah
Analysis and forecast improvements from simulated satellite water vapor profiles and rainfall using a global data assimilation system
The potential improvements of analyses and forecasts from the use of satellite-observed rainfall and water vapor measurements from the Defense Meteorological Satellite Program Sensor Microwave (SSM) T-1 and T-2 instruments are investigated in a series of observing system simulation experiments using the Air Force Phillips Laboratory (formerly Air Force Geophysics Laboratory) data assimilation system. Simulated SSM radiances are used directly in a radiance retrieval step following the conventional optimum interpolation analysis. Simulated rainfall rates in the tropics are used in a moist initialization procedure to improve the initial specification of divergence, moisture, and temperature. Results show improved analyses and forecasts of relative humidity and winds compared to the control experiment in the tropics and the Southern Hemisphere. Forecast improvements are generally restricted to the first 1-3 days of the forecast. 27 refs., 11 figs.
Nehrkorn, T.; Hoffman, R.N.; Louis, J.F.; Isaacs, R.G.; Moncet, J.L. (Atmospheric and Environmental Research, Inc., Cambridge, MA (United States))
Comparison of surface meteorological data representativeness for the Weldon Spring transport and dispersion modeling analysis
The US Department of Energy is conducting the Weldon Spring Site Remedial Action Project under the Surplus Facilities Management Program (SFMP). The major goals of the SFMP are to eliminate potential hazards to the public and the environment that associated with contamination at SFMP sites and to make surplus property available for other uses to the extent possible. This report presents the results of analysis of available meteorological data from stations near the Weldon Spring site. Data that are most representative of site conditions are needed to accurately model the transport and dispersion of air pollutants associated with remedial activities. Such modeling will assist the development of mitigative measures. 17 refs., 12 figs., 6 tabs.
Lazaro, M.
Copyright 2004, School of Meteorology, University of Oklahoma. Rev 04/04 Knowledge Expectations for METR 4424
the specific topics and order listed here. Pre-requisites: Grade of C or better in METR 3123, METR 3223, School of Meteorology, University of Oklahoma. Rev 04/04 ┬Ę Understand the utility and limitations of data devices (i.e., radar and satellites). ┬Ę Understand the utility and limitations of numerical methods used
Bulletin of the Australian Meteorological and Oceanographic Society Vol.18 page 104 BLUElink> Progress on operational ocean prediction for Australia
BLUElink> Progress on operational ocean prediction for Australia Gary B. Brassington1 , Graham Warren1 , Neville Smith1 , Andreas Schiller2 , Peter R. Oke2 1. Bureau of Meteorology, Melbourne Australia. 2. CSIRO Centre, PO Box 1289K, Melbourne, Victoria, Australia. Email: firstname.lastname@example.com Introduction "...a
Oke, Peter
APRIL 1999 1101S I E G E L E T A L . 1999 American Meteorological Society
of ocean radiant heating rates and solar radiation transmission are assessed using both model resultsAPRIL 1999 1101S I E G E L E T A L . 1999 American Meteorological Society Cloud Color and Ocean the flux of solar radiation reaching the sea surface. Clouds also affect the spectral distribution
Siegel, David A.
Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
Long-period fading in atmospherics during severe meteorological activity and associated solar activity with the solar geophysical phenomena was studied. The results are indicative of an interesting sequence of solar- terrestrial events. A tentative conclusion is reached, suggesting an origin
Assessment of the Performance of the Chilbolton 3-GHz Advanced Meteorological Radar for Cloud-Top-Height Retrieval
. The potential for this radar to make useful measurements of low-altitude liquid water cloud structure is investigated. To assess the cloud-height assignment capabilities of the 3-GHz radar, low-level cloudAssessment of the Performance of the Chilbolton 3-GHz Advanced Meteorological Radar for Cloud
1 JUNE 2001 2443G U A N D L I O U 2001 American Meteorological Society
and are parameterized in terms of the ice water content and mean effective ice crystal size. The correlated k-function adjustment is used to account for the strong forward-diffraction nature in the phase function of ice1 JUNE 2001 2443G U A N D L I O U 2001 American Meteorological Society Radiation Parameterization
Liou, K. N.
JANUARY 2004 157Z H A N G A N D Z H E N G 2004 American Meteorological Society
JANUARY 2004 157Z H A N G A N D Z H E N G 2004 American Meteorological Society Diurnal Cycles is evaluated using the 3-day mesoscale simulations of summertime weak-gradient flows over the central United is directed upward after sunrise. As more solar energy is absorbed by the earth's surface, free convective
Zhang, Da-Lin
MARCH 1999 857Z E N G A N D N E E L I N 1999 American Meteorological Society
MARCH 1999 857Z E N G A N D N E E L I N 1999 American Meteorological Society A Land surface albedo reflects more solar radiation into space. A positive feedback by moisture convergence: central Africa, the Maritime Continent, and the Amazon. A mean an- nual rainfall of over 2000 mm sustains
Zeng, Ning
Annual Report 2010 | 1Ministry of Infrastructure and the Environment | Royal Netherlands Meteorological Institute Annual Report 2010
Annual Report 2010 | 1Ministry of Infrastructure and the Environment | Royal Netherlands of Infrastructure and the Environment | Royal Netherlands Meteorological Institute Annual Report 2010 KNMI round the clock #12;2 | Annual report 2010 Ministry of Infrastructure and the Environment | Royal Netherlands
Meteorological and air quality data quarterly report. WIPP site: Eddy County, New Mexico. Summer quarter, June 1977-August 1977
The purpose of the WIPP meteorological, air quality, and radiological measurements program was to support the environmental effort for the evaluation of the site suitability. This data report is the latest in a series of seasonal quarterly data summaries to be issued for the southeastern New Mexico site.
Pocalujka, L.P.; Babij, E.; Catizone, P.A.; Church, H.W.
The Central American cold surge: an observational analysis of the deep southward penetration of North American cold fronts
THE CENTRAL AMERICAN COLD SURGE: AN OBSERVATIONAL ANALYSIS OF THE DEEP SOUTHWARD PENETRATION OF NORTH AMERICAN COLD FRONTS A Thesis by PHILIP JOHN REDING Submitted to the Office of Graduate Studies of Texas A &M University in partial... fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1992 Major Subject: Meteorology THE CENTRAL AMERICAN COLD SURGE: AN OBSERVATIONAL ANALYSIS OF THE DEEP SOUTHWARD PENETRATION OF NORTH AMERICAN COLD FRONTS A Thesis by PHILIP...
Reding, Philip John
Patterns of satellite-viewed, subtropical, jet-stream clouds in relation to the observed wind field
PATTERNS OF SATELLITE-VIEWED, SUBTROPICAL, JET- STREAM CLOUDS IN RELATION TO THE OBSERVED WIND FIELD A Thesis by RICHARD JOEL VOGT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1972 Major Subject: Meteorology PATTERNS OP SATELLITE-VIEWED, SUBTROPICAL, JET-STREAM CLOUDS IN RELATION TO THE OBSERVED WIND FIELD A Thesis by RICHARD JOEL VOGT Approved as to style and content by: (Chairman...
Vogt, Richard Joel
A system to test the effects of materials on the electron drift lifetime in liquid argon and observations on the effect of water
A materials test system (MTS) has been developed at FNAL to assess the suitability of materials for use in a large liquid argon time projection chamber. During development of the MTS, it was noted that controlling the cryostat pressure with a 'raining' condenser reduced the electron drift lifetime in the liquid argon. The effect of condensing has been investigated using a series of passive materials to filter the condensate. We report the results of these studies and of tests on different candidate materials for detector construction. The inferred reduction of electron drift lifetime by water concentrations in the parts per trillion is of particular interest.
Andrews, R.; Jaskierny, W.; Jostlein, H.; Kendziora, C.; Pordes, S.; Tope, T.; /Fermilab; ,
Identification of LAMBDA-like systems in Er{sup 3+}:Y{sub 2}SiO{sub 5} and observation of electromagnetically induced transparency
Electromagnetically induced transparency (EIT) is reported in a solid-state material doped with erbium ions. In this paper we introduce the spectroscopic investigations we have conducted in order to identify the adequate LAMBDA-like three-level systems in Er{sup 3+}:Y{sub 2}SiO{sub 5} crystal, relevant for the demonstration of EIT. These results pave the way for nonlinear and quantum optics applications based on EIT at the telecom wavelength around 1.5 mum.
Baldit, E.; Bencheikh, K.; Monnier, P.; Briaudeau, S.; Levenson, J. A.; Crozatier, V.; Lorgere, I.; Bretenaker, F.; Le Goueet, J. L.; Guillot-Noeel, O.; Goldner, Ph. [Laboratoire de Photonique et de Nanstructures, CNRS-UPR 20, 91460 Marcoussis (France); Laboratoire Aime Cotton, CNRS-UPR 3321, University Paris-Sud, Bat. 505, 91405 Orsay Cedex (France); Laboratoire de Chimie de la Matiere Condensee de Paris, CNRS-UMR 7574, ENSCP, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05 (France)
Evolutionary outcomes for pairs of planets undergoing orbital migration and circularization: second order resonances and observed period ratios in Kepler's planetary systems
In order to study the origin of the architectures of low mass planetary systems, we perform numerical surveys of the evolution of pairs of coplanar planets in the mass range $(1-4)\\ \\rmn{M}_{\\oplus}.$ These evolve for up to $2\\times10^7 \\rmn{yr}$ under a range of orbital migration torques and circularization rates assumed to arise through interaction with a protoplanetary disc. Near the inner disc boundary, significant variations of viscosity, interaction with density waves or with the stellar magnetic field could occur and halt migration, but allow ircularization to continue. This was modelled by modifying the migration and circularization rates. Runs terminated without an extended period of circularization in the absence of migration torques gave rise to either a collision, or a system close to a resonance. These were mostly first order with a few $\\%$ terminating in second order resonances. Both planetary eccentricities were small $< 0.1$ and all resonant angles liberated. This type of survey produced o...
Xiang-Gruess, M
Solar Resource and Meteorological Assessment Project (SOLRMAP): Rotating Shadowband Radiometer (RSR); Escalante Tri-State - Prewitt, New Mexico (Data)
Improvement of weather analysis in isolated areas of the southern hemisphere by meteorological satellite information: a case study.
pressure Temperature Wind Upper-air circulation Fronts Cloudiness Cyclonic and anticyclonic activity. Weather patterns Summary of the status of available information Status of the Use of Information from Meteorological Satellites as Applied... del Fuego and South Patagonia, unpredictable most of the time except for the orographic effects, is due to the changes in the atmospheric circulation in the vicinity of the Drake Passage . Aircraft of Argentine and Chilean airlines operate...
Alvarez, Jose? Angel
1052 VOLUME 18W E A T H E R A N D F O R E C A S T I N G 2003 American Meteorological Society
of Meteorology, Perth, Western Australia, Australia i European Centre for Medium-Range Weather Forecasts, Reading to frontogenesis, the mechanisms responsible for precipitation, and the energy budget during ET. Finally, a summary
Smith, Roger K.
We examined cloud radar data in monsoon climates, using cloud radars at Darwin in the Australian monsoon, on a ship in the Bay of Bengal in the South Asian monsoon, and at Niamey in the West African monsoon. We followed on with a more in-depth study of the continental MCSs over West Africa. We investigated whether the West African anvil clouds connected with squall line MCSs passing over the Niamey ARM site could be simulated in a numerical model by comparing the observed anvil clouds to anvil structures generated by the Weather Research and Forecasting (WRF) mesoscale model at high resolution using six different ice-phase microphysical schemes. We carried out further simulations with a cloud-resolving model forced by sounding network budgets over the Niamey region and over the northern Australian region. We have devoted some of the effort of this project to examining how well satellite data can determine the global breadth of the anvil cloud measurements obtained at the ARM ground sites. We next considered whether satellite data could be objectively analyzed to so that their large global measurement sets can be systematically related to the ARM measurements. Further differences were detailed between the land and ocean MCS anvil clouds by examining the interior structure of the anvils with the satellite-detected the CloudSat Cloud Profiling Radar (CPR). The satellite survey of anvil clouds in the Indo-Pacific region was continued to determine the role of MCSs in producing the cloud pattern associated with the MJO.
Houze, Jr., Robert A. [University of Washington Dept. of Atmospheric Sciences
[10-386] Assessing and Improving the Scale Dependence of Ecosystem Processes in Earth System Models
. Goodale Cornell U. *Overall Project Lead *Lead Institution Intellectual Merit: Earth system models include policies. Our research assesses and improves Earth system model simulations of the carbon cycle, ecosystem of the Community Climate System Model/Community Earth System Model, which includes statistical meteorological
Accurate economic analysis of photovoltaic (PV) systems performance over the system lifetime requires knowledge
modules will work over long periods. Nine years of PV data at Ashland, Oregon are used to determine and meteorological measurements. 1. INTRODUCTION As the solar industry matures, more and more emphasis is being. The benefits, costs, and design of the feed-in tariffs require knowledge of system output over time. Second
Oregon, University of
1 DECEMBER 2004 4541L U O A N D R O S S O W 2004 American Meteorological Society
Project (ISCCP) data and the Television and Infrared Observation Satellite (TIROS) Operational Vertical.g., large-scale lifting) replenish the particles to maintain tropical cirrus. Consequently, tropical cirrus- cesses, such as the mesoscale circulations of larger storm systems, large-scale lifting or gravity waves
Networked Aquatic Microbial Observing Systems: An Overview
wind, surface current directions and velocities). Ģ Enhanced algorithms for station-keeping capabilities of autonomous
GEO Secretariat Global Earth Observing System of
and Epidemiology 3. Energy Management 4. Climate Variability & Change 5. Water Management 6. Weather Forecasting 7 ┬Ł 2009-11 Work Plan Objective: to improve the management and protection of terrestrial, coastal
Electromagnetic Observables in Few-Nucleon Systems
The electromagnetic probe is a very valuable tool to study the dynamics of few nucleons. It can be very helpful in shedding light on the not yet fully understood three-nucleon forces. We present an update on the theoretical studies of electromagnetic induced reactions, such as photo-disintegration and electron scattering off 4He. We will show that they potentially represent a tool to discriminate among three-nucleon forces. Then, we will discuss the charge radius and the nuclear electric polarizability of the 6He halo nucleus.
Sonia Bacca
Automated Surface Observing System: Standby Power Options
Energy Savers [EERE]
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustionImprovement3--Logistical5/08 Attendance List1-02Evaluation Report(AO) AuthorizingAutomated
Meteorological and air quality impacts of increased urban albedo and vegetative cover in the Greater Toronto Area, Canada
The study described in this report is part of a project sponsored by the Toronto Atmospheric Fund, performed at the Lawrence Berkeley National Laboratory, to assess the potential role of surface property modifications on energy, meteorology, and air quality in the Greater Toronto Area (GTA), Canada. Numerical models were used to establish the possible meteorological and ozone air-quality impacts of increased urban albedo and vegetative fraction, i.e., ''cool-city'' strategies that can mitigate the urban heat island (UHI), significantly reduce urban energy consumption, and improve thermal comfort, particularly during periods of hot weather in summer. Mitigation is even more important during critical heat wave periods with possible increased heat-related hospitalization and mortality. The evidence suggests that on an annual basis cool-city strategies are beneficial, and the implementation of such measures is currently being investigated in the U.S. and Canada. We simulated possible scenari os for urban heat-island mitigation in the GTA and investigated consequent meteorological changes, and also performed limited air-quality analysis to assess related impacts. The study was based on a combination of mesoscale meteorological modeling, Lagrangian (trajectory), and photochemical trajectory modeling to assess the potential meteorological and ozone air-quality impacts of cool-city strategies. As available air-quality and emissions data are incompatible with models currently in use at LBNL, our air-quality analysis was based on photochemical trajectory modeling. Because of questions as to the accuracy and appropriateness of this approach, in our opinion this aspect of the study can be improved in the future, and the air-quality results discussed in this report should be viewed as relatively qualitative. The MM5 meteorological model predicts a UHI in the order of 2 to 3 degrees C in locations of maxima, and about 1 degree C as a typical value over most of the urban area. Our si mulations suggest that cool-city strategies can typically reduce local urban air temperature by 0.5-1 degrees C; as more sporadic events, larger decreases (1.5 degrees C, 2.5-2.7 degrees C and 4-6 degrees C) were also simulated. With regard to ozone mixing ratios along the simulated trajectories, the effects of cool-city strategies appear to be on the order of 2 ppb, a typical decrease. The photochemical trajectory model (CIT) also simulates larger decreases (e.g., 4 to 8 ppb), but these are not taken as representative of the potential impacts in this report. A comparison with other simulations suggest very crudely that a decrease of this magnitude corresponds to significant ''equivalent'' decreases in both NOx and VOCs emissions in the region. Our preliminary results suggest that significant UHI control can be achieved with cool-cities strategies in the GTA and is therefore worth further study. We recommend that better input data and more accurate modeling schemes be used to carry out f uture studies in the same direction.
Taha, Haider; Hammer, Hillel; Akbari, Hashem
Observables of Macdonald processes
We present a framework for computing averages of various observables of Macdonald processes. This leads to new contour--integral formulas for averages of a large class of multilevel observables, as well as Fredholm determinants for averages of two different single level observables.
Alexei Borodin; Ivan Corwin; Vadim Gorin; Shamil Shakirov
Methoden Wetenschappelijk and Observational
Methoden Wetenschappelijk Onderzoek Fact-free and Observational Science #12;Data ┬Ę Part of modern science is based on observation ┬ŁHow do we do this? ┬ŁAnd what are the pitfalls? ┬Ę Knowing how to observe is an important step in experimental design #12;Three kinds of science ┬Ę There are (in my view) three ways
Steels, Luc
1143AUGUST 2004AMERICAN METEOROLOGICAL SOCIETY | he Laurentian Great Lakes (Fig. 1) com-
; irrigates reclaimed lands in the West; manages giant hydroelectric power systems; administers grazing
Current HMS Observations - Hanford Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformationCenterResearchCASLNanoporousTestimonyContact UsHanford Meteorological Station
VLT/UVES observations of extremely strong intervening damped Lyman-alpha systems: Molecular hydrogen and excited carbon, oxygen and silicon at log N(HI)=22.4
We present a detailed analysis of three extremely strong intervening DLAs (log N(HI)>=21.7) observed towards quasars with VLT/UVES. We measure overall metallicities of [Zn/H]~-1.2, -1.3 and -0.7 at respectively zabs=2.34 towards SDSS J2140-0321 (log N(HI) = 22.4+/-0.1), zabs=3.35 towards SDSS J1456+1609 (log N(HI) = 21.7+/-0.1) and zabs=2.25 towards SDSS J0154+1935 (log N(HI) = 21.75+/-0.15). We detect H2 towards J2140-0321 (log N(H2) = 20.13+/-0.07) and J1456+1609 (log N(H2) = 17.10+/-0.09) and argue for a tentative detection towards J0154+1935. Absorption from the excited fine-structure levels of OI, CI and SiII are detected in the system towards J2140-0321, that has the largest HI column density detected so far in an intervening DLA. This is the first detection of OI fine-structure lines in a QSO-DLA, that also provides us a rare possibility to study the chemical abundances of less abundant atoms like Co and Ge. Simple single phase photo-ionisation models fail to reproduce all the observed quantities. Inst...
Noterdaeme, P; Rahmani, H; Petitjean, P; PŌris, I; Ledoux, C; Gupta, N; L¾pez, S
HIPPO (HIAPER Pole-to-Pole Observations) Data from CDIAC's HIPPO Data Archive
The HIPPO (HIAPER Pole-to-Pole Observations) study of the carbon cycle and greenhouse gases measured meteorology, atmospheric chemistry, and aerosol constituents along transects from approximately pole-to-pole over the Pacific Ocean. HIPPO flew hundreds of vertical profiles from the ocean/ice surface to as high as the tropopause, at five times during different seasons over a three year period from 2009-2011. HIPPO provides the first high-resolution vertically-resolved global survey of a comprehensive suite of atmospheric trace gases and aerosols pertinent to understanding the carbon cycle and challenging global climate models.
Evaluating Clouds, Aerosols, and their Interactions in Three Global Climate Models using COSP and Satellite Observations
Accurately representing aerosol-cloud interactions in global climate models is challenging. As parameterizations evolve, it is important to evaluate their performance with appropriate use of observations. In this work we compare aerosols, clouds, and their interactions in three climate models (AM3, CAM5, ModelE) to MODIS satellite observations. Modeled cloud properties were diagnosed using the CFMIP Observations Simulator Package (COSP). Cloud droplet number concentrations (N) were derived using the same algorithm for both satellite-simulated model values and observations. We find that aerosol optical depth tau simulated by models is similar to observations. For N, AM3 and CAM5 capture the observed spatial pattern of higher values in near-coast versus remote ocean regions, though modeled values in general are higher than observed. In contrast, ModelE simulates lower N in most near-coast versus remote regions. Aerosol- cloud interactions were computed as the sensitivity of N to tau for marine liquid clouds off the coasts of South Africa and Eastern Asia where aerosol pollution varies in time. AM3 and CAM5 are in most cases more sensitive than observations, while the sensitivity for ModelE is statistically insignificant. This widely used sensitivity could be subject to misinterpretation due to the confounding influence of meteorology on both aerosols and clouds. A simple framework for assessing the N ¢ tau sensitivity at constant meteorology illustrates that observed sensitivity can change from positive to statistically insignificant when including the confounding influence of relative humidity. Satellite simulated values of N were compared to standard model output and found to be higher with a bias of 83 cm-3.
Ban-Weiss, George; Jin, Ling; Bauer, S.; Bennartz, Ralph; Liu, Xiaohong; Zhang, Kai; Ming, Yi; Guo, Huan; Jiang, Jonathan
Observational learning in horses
OBSERVATIONAL LEARNING IN HORSES A Thesis by KATHERINE LOUISE BAER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1979 Major Subject: Animal... Science OBSERVATIONAL LEARNING IN HORSES A Thesis by KATHERINE LOUISE BAER Approved as to style and content by: L7 . 5+~ (Chairma of . C mmittee) ) c r (Mem ) YiNicc CJ ~- (Membeh) (Head of Department May 1979 ABSTRACT Observational...
Baer, Katherine Louise
Observation of Entropic Effect on Conformation Changes of Complex...
Entropic Effect on Conformation Changes of Complex Systems Under Well-Controlled Temperature Condition. Observation of Entropic Effect on Conformation Changes of Complex Systems...
Hot Pot Field Observations
Map of field observations including depressions, springs, evidence of former springs, travertine terraces and vegetation patterns. Map also contains interpretation of possible spring alignments.
Lane, Michael
B. MAPES et al.November 2008 175Journal of the Meteorological Society of Japan, Vol. 86A, pp. 175-185, 2008 Predictability Aspects of Global Aqua-planet Simulations
B. MAPES et al.November 2008 175Journal of the Meteorological Society of Japan, Vol. 86A, pp. 175;Journal of the Meteorological Society of Japan Vol. 86A176 1. Introduction In principle, anything Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder
Mapes, Brian
1491OCTOBER 2004AMERICAN METEOROLOGICAL SOCIETY | erosols are airborne suspensions of tiny par-
the burning of fossil and biofuels-- through industrial activities, transportation systems, and urban heating change. AFFILIATIONS: DINER, BRAVERMAN, DAVIES, KAHN, MARTONCHIK, AND MENZIES--Jet Propulsion Laboratory
Combined influence of atmospheric physics and soil hydrology on the simulated meteorology at the SIRTA atmospheric
for This paper is a contribution to the special issue on the IPSL and CNRM global climate and Earth System Models it to evaluate the standard and new parametrizations of boundary layer/convection/clouds in the Earth System Model (ESM) of Institut Pierre Simon Laplace (IPSL), which differentiate the IPSL-CM5A and IPSL- CM5B
Hourdin, Chez Fr├®d├®ric
Near-Infrared Observations April 9, 2009
idea: correct wavefront distortions using a deformable secondary mirror ┬Ę can achieve better correction;Energy Generation ┬Ę what are we seeing when we observe solar system objects in the NIR? ┬Ę reflected
Harrison, Thomas
1088 VOLUME 15J O U R N A L O F C L I M A T E 2002 American Meteorological Society
1088 VOLUME 15J O U R N A L O F C L I M A T E 2002 American Meteorological Society NOTES instability: the latter predominantly generates the seasonal phase locking of ENSO but has little effect periodic forcing, such as the annual cycle of solar insolation or monsoon wind. Using a conceptual ENSO
Wisconsin at Madison, University of
Meteorology Group, Departament de Fsica, Universitat de les Illes Balears, Palma de Mallorca, Spain IMEDEA, UIB-CSIC, Palma de Mallorca, Spain
, Spain 2 IMEDEA, UIB-CSIC, Palma de Mallorca, Spain 3 Instituto Nacional de Meteorolog├Ą├?a, Madrid, Spain Geltru, Barcelona, Spain A Case of Convection Development over the Western Mediterranean Sea: A Study of precipitation were recorded in coastal lands of eastern Spain, and 180 mm were estimated over the sea with radar
Romero, Romu
Oumbe A., Blanc Ph., Schroedter-Homscheidt M., Wald L., 2010. Solar surface irradiance from new meteorological satellite data. In Proceedings of the 29th
Tech, Center for Energy and Processes, BP 207, 06904 Sophia Antipolis, France b German Aerospace CenterOumbe A., Blanc Ph., Schroedter-Homscheidt M., Wald L., 2010. Solar surface irradiance from new, 320-328, doi:10.3233/978-1-60750-494-8-320 Solar surface irradiance from new meteorological satellite
VOLUME 12 APRIL 1999J O U R N A L O F C L I M A T E 1999 American Meteorological Society 917
VOLUME 12 APRIL 1999J O U R N A L O F C L I M A T E 1999 American Meteorological Society 917 Remote the solar radiation absorbed by the ocean, thereby leading to enhanced SSTs. In the tropical North Atlantic. These relationships fit the concept of an ``atmospheric bridge'' that connects SST anomalies in the central equatorial
1 JULY 2000 2261Z H A N G A N D M C P H A D E N 2000 American Meteorological Society
1 JULY 2000 2261Z H A N G A N D M C P H A D E N 2000 American Meteorological Society Intraseasonal in solar radiation flux and net buoyancy flux. The phase of net buoyancy flux is determined by the net heat intraseasonal Kelvin waves propagate eastward from the western Pacific into the central and eastern Pacific
Zhang, Chidong
15 JUNE 2003 1967L ' E C U Y E R A N D S T E P H E N S 2003 American Meteorological Society
15 JUNE 2003 1967L ' E C U Y E R A N D S T E P H E N S 2003 American Meteorological Society, and space--enhancing reflection of solar radiation to space, trapping thermal emission from the surface. Central to this issue is the role of the hydrological cycle governing the exchange of water between
Stephens, Graeme L.
3698 VOLUME 15J O U R N A L O F C L I M A T E 2002 American Meteorological Society
3698 VOLUME 15J O U R N A L O F C L I M A T E 2002 American Meteorological Society Surface in detecting clouds in the frequent surface-based temperature inversion and when solar radiation is absent 1991. Large positive trends in POLES over the central Arctic during spring are absent in TOVS in part
of New York at Albany For Presentation at the ARM Science Team Meeting, Albuquerque, NM March 27-31, 2006, such as static stability and updraft velocity. These influences may contribute to the observed weak correlation with entrainment processes around cloud top. These processes would be expected to decrease the amount of column
Observations of the Icy Universe
Freeze-out of the gas phase elements onto cold grains in dense interstellar and circumstellar media builds up ice mantles consisting of molecules that are mostly formed in situ (H2O, NH3, CO2, CO, CH3OH, and more). This review summarizes the detected infrared spectroscopic ice features and compares the abundances across Galactic, extragalactic, and solar system environments. A tremendous amount of information is contained in the ice band profiles. Laboratory experiments play a critical role in the analysis of the observations. Strong evidence is found for distinct ice formation stages, separated by CO freeze out at high densities. The ice bands have proven to be excellent probes of the thermal history of their environment. The evidence for the long-held idea that processing of ices by energetic photons and cosmic rays produces complex molecules is weak. Recent state of the art observations show promise for much progress in this area with planned infrared facilities.
Boogert, Adwin; Whittet, Douglas
Observing Massive Galaxy Formation
A major goal of contemporary astrophysics is understanding the origin of the most massive galaxies in the universe, particularly nearby ellipticals and spirals. Theoretical models of galaxy formation have existed for many decades, although low and high redshift observations are only beginning to put constraints on different ideas. We briefly describe these observations and how they are revealing the methods by which galaxies form by contrasting and comparing fiducial rapid collapse and hierarchical formation model predictions. The available data show that cluster ellipticals must have rapidly formed at z > 2, and that up to 50% of all massive galaxies at z ~ 2.5 are involved in major mergers. While the former is consistent with the monolithic collapse picture, we argue that hierarchal formation is the only model that can reproduce all the available observations.
Christopher J. Conselice
Observer-based fault detection for nuclear reactors
This is a study of fault detection for nuclear reactor systems. Basic concepts are derived from fundamental theories on system observers. Different types of fault- actuator fault, sensor fault, and system dynamics fault ...
Li, Qing, 1972-
Statistical approach to lorig-term performances of photovoltaic systems B. Bartoli, U. Coscia, V. Cuomo, F. Fontana and V. Silvestrini
281 Statistical approach to lorig-term performances of photovoltaic systems B. Bartoli, U. Coscia in the problem : system sizes and meteorological parameters. Furthermore we study the reliability of our model represent the size and the technical properties of the system [2]. This approach allows a drastic
Academic Writing Observation Papers
a particular action and did not notice something about the people involved. Note what you did not notice observations. People: If the setting is crowded, choose a particular group (or groups) or focus on random paper around a research question: For example, you may be interested in power relations, interactions
a particular action and did not notice something about the people involved. Note what you did not notice observations. People: If the setting is crowded, choose a particular group (or groups) or focus on random in power relations, interactions between interpersonal communication processes and other media, or other
Global Warming Observations
Global Warming Observations: 1. Global temperature has been gradually rising in recent years #15 in range 8000 12000 nm { CFC's, methane and N 2 O important for global warming even though concentra- tions in concentration of \\greenhouse gases" like CO 2 What determines global temperature? Energy budget of earth: 1
Schofield, Jeremy
EBONEEUROPEAN BIODIVERSITY OBSERVATION NETWORK Geert De Blust, Guy Laurijssens, Hans Van Calster of biodiversity monitoring through close collaboration of users and data providers #12;#12;Design of a monitoring-effectiveness Optimization of biodiversity monitoring through close collaboration of users and data providers Geert De Blust1
for Lagrangian Trajectory Models2 Kenneth P. Bowman4 Department of Atmospheric Sciences, Texas A&M University of Atmospheric Sciences, University of Utah, Salt Lake City, UT, USA 10 Andreas Stohl Norwegian Institute for Air, Boulder, CO, USA 22 Dominik Brunner Laboratory for Air Pollution and Environmental Technology, Empa
in the Marine Boundary Layer (CAP-MBL)38 deployment at Graciosa Island in the Azores generated a 21 month (April, distributed, and cited, but please be aware that there will be visual differences and possibly some content to Graciosa Island in the northeastern Atlantic Ocean is providing an unprecedented record of the clouds
Meteorological Conditions Processing for Vision-based Traffic Monitoring Nicolas Hautire
of the sensors. A vision-based traffic monitoring system is proposed to take fog and rain into account and react ac- cordingly. A background modeling approach, based on a mixture of gaussians, is used to separate the foreground from the background. Since fog is steady weather, the back- ground image is used to detect
on the Autonomous Temperature Line Acquisition System (ATLAS) moorings. In 2005, the drifter array reached its Current, conflicting with the simple hypothesis of a more-intense-than-average wind-driven gyre26 JUNE 2006| intraseasonal (MJO) wind fluctuations (cf. Eisenman et al. 2005). In January (Fig. 3
17FEBRUARY 2004AMERICAN METEOROLOGICAL SOCIETY | he International MODIS (Moderate Resolution
broadcast from Terra or Aqua to produce calibrated and geolocated radiances and a variety of environmental, ELISABETH WEISZ, THOMAS RINK, KEVIN BAGGETT, JIM DAVIES, WILLIAM L. SMITH, AND JAMES C. DODGE SYSTEMS detection, fisheries management, weather forecasting, aviation safety, and ice forecasts. To date
Li, Jun
255FEBRUARY 2002AMERICAN METEOROLOGICAL SOCIETY | he Surface Heat Budget of the Arctic Ocean
that determine the surface energy budget and the seaŁice mass balance in the Arctic (Moritz et al. 1993; Perovich of the vertical and horizontal energy exchanges within the oceanŁiceŁatmosphere system. The SHEBA pro- gram for Atmospheric Research, Boulder, Colorado; TURENNE--Canadian Coast Guard, Quebec City, Quebec, Canada; SERREZE
Shupe, Matthew
High-latitude ionospheric convection models derived from Defense Meteorological Satellite Program ion drift
Vladimir O. Papitashvili Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan to the average solar wind (i.e., the ``quasi-viscous'' interaction) and to changes in the IMF By, Bz 0, and Bz, plasma convection, current systems 1. Introduction [2] Earth's magnetosphere is immersed in the solar
Michigan, University of
Rintoul, S.R., M.P. Meredith, O. Schofield, and L. Newman. 2012. The Southern Ocean Observing System. Oceanography 25(3):6869, http://dx.doi.org/10.5670/oceanog.2012.76.
in the stability of the Antarctic ice sheets and their contributions to sea level rise 4. The future observations. recognition of this need motivated the community to develop a strategy for a Southern Ocean large impact on the remote and poorly observed Southern Ocean. Argo has already collected many more
Research and Observation
understanding of how the cli mate system varies naturally and reacts 500 to emissions of greenhouse gases of greenhouse gases and aerosols, and (2) the so-called "feedbacks" that determine Note: Contributions Council. Inclusion of these could raise the totals prescribed increase in greenhouse gases. by 10
Worrest, Robert C.
Observations of Edge Turbulence
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the ContributionsArmsSpeedingSpeedingUnder Well-ControlledObservation ofofEdge Turbulence
Solar Resource & Meteorological Assessment Project (SOLRMAP): Southwest Solar Research Park (Formerly SolarCAT) Rotating Shadowband Radiometer (RSR); Phoenix, Arizona (Data)
ARKTOS: An Intelligent System for SAR Sea Ice Image Classification Leen-Kiat Soh1
in meteorology and in global climate studies. For example, the thickness of sea ice influences the heat fluxARKTOS: An Intelligent System for SAR Sea Ice Image Classification Leen-Kiat Soh1 , Costas sea ice image analysis named ARKTOS (Advanced Reasoning using Knowledge for Typing Of Sea ice). ARKTOS
Kansas, University of
Characteristics of Precipitating Convective Systems Accounting for the Summer Rainfall of Tropical and Subtropical South America
and Subtropical South America ULRIKE ROMATSCHKE AND ROBERT A. HOUZE JR. University of Washington, Seattle of the precipitating cloud systems that account for the summer rainfall of tropical and subtropical South America role in the meteorology, climatology, and hydrology of South America. They not only produce
Houze Jr., Robert A.
Observing the Inflationary Reheating
Reheating is the the epoch which connects inflation to the subsequent hot Big-Bang phase. Conceptually very important, this era is however observationally poorly known. We show that the current Planck satellite measurements of the Cosmic Microwave Background (CMB) anisotropies constrain the kinematic properties of the reheating era for most of the inflationary models. This result is obtained by deriving the marginalized posterior distributions of the reheating parameter for about 200 models taken in Encyclopaedia Inflationaris. Weighted by the statistical evidence of each model to explain the data, we show that the Planck 2013 measurements induce an average reduction of the posterior-to-prior volume by 40%. Making some additional assumptions on reheating, such as specifying a mean equation of state parameter, or focusing the analysis on peculiar scenarios, can enhance or reduce this constraint. Our study also indicates that the Bayesian evidence of a model can substantially be affected by the reheating properties. The precision of the current CMB data is therefore such that estimating the observational performance of a model now requires to incorporate information about its reheating history.
Jerome Martin; Christophe Ringeval; Vincent Vennin
Observation Targeting for the Tehachapi Pass and Mid-Columbia Basin: WindSENSE Phase III Project Summary Report
The overall goal of this multi-phased research project known as WindSENSE is to develop an observation system deployment strategy that would improve wind power generation forecasts. The objective of the deployment strategy is to produce the maximum benefit for 1- to 6-hour ahead forecasts of wind speed at hub-height ({approx}80 m). In Phase III of the project, the focus was on the Mid-Columbia Basin region which encompasses the Bonneville Power Administration (BPA) wind generation area shown in Figure 1 that includes Klondike, Stateline, and Hopkins Ridge wind plants. The typical hub height of a wind turbine is approximately 80-m above ground level (AGL). So it would seem that building meteorological towers in the region upwind of a wind generation facility would provide data necessary to improve the short-term forecasts for the 80-m AGL wind speed. However, this additional meteorological information typically does not significantly improve the accuracy of the 0- to 6-hour ahead wind power forecasts because processes controlling wind variability change from day-to-day and, at times, from hour-to-hour. It is also important to note that some processes causing significant changes in wind power production function principally in the vertical direction. These processes will not be detected by meteorological towers at off-site locations. For these reasons, it is quite challenging to determine the best type of sensors and deployment locations. To address the measurement deployment problem, Ensemble Sensitivity Analysis (ESA) was applied in the Phase I portion of the WindSENSE project. The ESA approach was initially designed to produce spatial fields that depict the sensitivity of a forecast metric to a set of prior state variables selected by the user. The best combination of variables and locations to improve the forecast was determined using the Multiple Observation Optimization Algorithm (MOOA) developed in Phase I. In Zack et al. (2010a), the ESA-MOOA approach was applied and evaluated for the wind plants in the Tehachapi Pass region for a period during the warm season. That research demonstrated that forecast sensitivity derived from the dataset was characterized by well-defined, localized patterns for a number of state variables such as the 80-m wind and the 25-m to 1-km temperature difference prior to the forecast time. The sensitivity patterns produced as part of the Tehachapi Pass study were coherent and consistent with the basic physical processes that drive wind patterns in the Tehachapi area. In Phase II of the WindSENSE project, the ESA-MOOA approach was extended and applied to the wind plants located in the Mid-Columbia Basin wind generation area of Washington-Oregon during the summer and to the Tehachapi Pass region during the winter. The objective of this study was to identify measurement locations and variables that have the greatest positive impact on the accuracy of wind forecasts in the 0- to 6-hour look-ahead periods for the two regions and to establish a higher level of confidence in ESA-MOOA for mesoscale applications. The detailed methodology and results are provided in separate technical reports listed in the publications section below. Ideally, the data assimilation scheme used in the Phase III experiments would have been based upon an ensemble Kalman filter (EnKF) that was similar to the ESA method used to diagnose the Mid-Columbia Basin sensitivity patterns in the previous studies. However, running an EnKF system at high resolution is impractical because of the very high computational cost. Thus, it was decided to use a three-dimensional variational (3DVAR) analysis scheme that is less computationally intensive. The objective of this task is to develop an observation system deployment strategy for the mid Columbia Basin (i.e. the BPA wind generation region) that is designed to produce the maximum benefit for 1- to 6-hour ahead forecasts of hub-height ({approx}80 m) wind speed with a focus on periods of large changes in wind speed. There are two tasks in the current project effort designed to validate
Hanley, D
Implementing Best Practices for Data Quality Assessment of the National Renewable Energy Laboratory's Solar Resource and Meteorological Assessment Project
Effective solar radiation measurements for research and economic analyses require a strict protocol for maintenance, calibration, and documentation to minimize station down-time and data corruption. The National Renewable Energy Laboratory's Concentrating Solar Power: Best Practices Handbook for the Collection and Use of Solar Resource Data (1) includes guidelines for operating a solar measure-ment station. This paper describes a suite of automated and semi-automated routines based on the best practices hand-book as developed for the National Renewable Energy La-boratory Solar Resource and Meteorological Assessment Project. These routines allow efficient inspection and data flagging to alert operators of conditions that require imme-diate attention. Although the handbook is targeted for con-centrating solar power applications, the quality-assessment procedures described are generic and should benefit many solar measurement applications. The routines use data in one-minute measurement resolution, as suggested by the handbook, but they could be modified for other time scales.
Wilcox, S. M.; McCormack, P.
Sequence of surface meteorological variables with the passage of winter cold fronts in the United States east of the Rocky Mountains
and dramatically alter weather conditions. Since these surface boundaries often mark distinct weather changes, locating their positions and forecasting their movement is critical to accurate forecasting. By analyzing the timing of changes in meteorological... than synoptic-scale processes, depend upon accurate synoptic analysis. As Bosart (1989) so appropriately stated, "the evolution of mesoscale features is critically dependent upon the configuration of the synoptic-scale flow. " Therefore, forecasting...
Huckaby, Daniel Dale
1406 VOLUME 61J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S 2004 American Meteorological Society
Meteorological Institute, De Bilt, and Department of Mathematics, Utrecht University, Utrecht, Netherlands J. D Research, Utrecht University, Utrecht, Netherlands F. VERHULST Department of Mathematics, Utrecht University, Utrecht, Netherlands (Manuscript received 22 October 2002, in final form 21 November 2003
Verhulst, Ferdinand
Observations on European Agriculture.
of Manure ............................................. 9 ........................................ ~pplication of Manure 11 ............................ ............. dffects of Manure -- 12 ............................... rhird-Purchase of Imported....i& includes leguminous crops to gather nitrogen from the air, and thereby enrich the soil. The crops are never turned under but q fed and the manure saved. Second, it is due to a general use of a system of grain and live. stock farming in which all...
Fraps, G. S. (George Stronach)
Observing alternatives to inflation
We discuss the possibility that the inflationary paradigm, undoubtfully today's best framework to understand all the present cosmological data, may still have some viable challengers. The underlying idea for such discussions is that although inflation already passed quite a large number of tests, indeed enough to make it part of the so-called ``standard model'' of cosmology, it has always been through indirect measurements: there is not a chance that we may ever directly check its validity, and therefore, in order to assert its factuality with increasing level of confidence, it is required that we compare its predictions not only to observations, but also to as many contenders as possible. Among other categories of possible models, we wish to put the emphasis in particular on bouncing cosmologies that, however not as complete as the inflation paradigm might be, could still represent a reasonnable way of explaining the current data. Hopefully, future data will be able to discriminate between these various sets of theories.
P. Peter
Modeling SF{sub 6} plume dispersion in complex terrain and meteorology with a limited data set
Early actions of emergency responders during hazardous material releases are intended to assess contamination and potential public exposure. As measurements are collected, an integration of model calculations and measurements can assist to better understand the situation. This study applied a high resolution version of the operational 3-D numerical models used by Lawrence Livermore National Laboratory to a limited meteorological and tracer data set to assist in the interpretation of the dispersion pattern on a 140 km scale. The data set was collected from a tracer release during the morning surface inversion and transition period in the complex terrain of the Snake River Plain near Idaho Falls, Idaho in November 1993 by the United States Air Force. Sensitivity studies were conducted to determine model input parameters that best represented the study environment. These studies showed that mixing and boundary layer heights, atmospheric stability, and rawinsonde data are the most important model input parameters affecting wind field generation and tracer dispersion. Numerical models and limited measurement data were used to interpret dispersion patterns through the use of data analysis, model input determination, and sensitivity studies. Comparison of the best-estimate calculation to measurement data showed that model results compared well with the aircraft data, but had moderate success with the few surface measurements taken. The moderate success of the surface measurement comparison, may be due to limited downward mixing of the tracer as a result of the model resolution determined by the domain size selected to study the overall plume dispersion. 8 refs., 40 figs., 7 tabs.
Schalk, W.W. III
Cloud Features and Zonal Wind Measurements of Saturn's Atmosphere as Observed by Cassini/VIMS
We present an analysis of data about Saturn's atmosphere from Cassini's Visual and Infrared Mapping Spectrometer (VIMS), focusing on the meteorology of the features seen in the 5-micron spectral window. We present VIMS mosaics and discuss the morphology and general characteristics of the features backlit by Saturn's thermal emission. We have also constructed a zonal wind profile from VIMS feature tracking observation sequences using an automated cloud feature tracker. Comparison with previously constructed profiles from Voyager and Cassini imaging data reveals broad similarities, suggesting minimal vertical shear of the zonal wind. However, areas of apparent wind shear are present in the VIMS zonal wind profile at jet stream cores. In particular, our analysis shows that the equatorial jet reaches speeds exceeding 450 m/s, similar to speeds obtained during the Voyager era. This suggests that recent inferences of relatively slower jet speeds of ~275-375 m/s are confined to the upper troposphere and that the dee...
Choi, David S; Brown, Robert H; 10.1029/2008JE003254
E-Print Network 3.0 - allowing direct observation Sample Search...
Observation Software Systems DASEL Technical Report 200707DL01 Summary: , this simple logic could be encoded directly into either the observer construction or event response...
for Coastal Research, GKSS Research Centre, Geesthacht, Germany y CREST, City College of New York, NY, USA z
aurora borealis or the Northern Lights. The solar wind, the magnetosphere and the ionosphere and ambiguous images. Time-series of images are analysed by utilising an auroral arc tracker. The feasibility
Syrj├żsuo, Mikko
SATELLITE METEOROLOGY Guosheng Liu
, USA Key Words: absorption, brightness temperature, radiometer, radiative transfer equation, remote Remote Sensing 2.1 Radiative Transfer in the Atmosphere 2.2 Thermal Radiation under Clear-Sky 2 Variation 3.2.4 Latent Heating 3.3 Clouds and Surface Energy Fluxes 3.3.1 Cloud Properties 3.3.2 Surface
Apparatus for observing a hostile environment
DOE Patents [OSTI]
An apparatus is provided for observing a hostile environment, comprising a housing and a camera capable of insertion within the housing. The housing is a double wall assembly with an inner and outer wall with an hermetically sealed chamber therebetween. A housing for an optical system used to observe a hostile environment is provided, comprising a transparent, double wall assembly. The double wall assembly has an inner wall and an outer wall with an hermetically sealed chamber therebetween. The double wall assembly has an opening and a void area in communication with the opening. The void area of the housing is adapted to accommodate the optical system within said void area. An apparatus for protecting an optical system used to observe a hostile environment is provided comprising a housing; a tube positioned within the housing; and a base for supporting the housing and the tube. The housing comprises a double wall assembly having an inner wall and an outerwall with an hermetically sealed chamber therebetween. The tube is adapted to house the optical system therein.
Nance, Thomas A. (Aiken, SC); Boylston, Micah L. (Williston, SC); Robinson, Casandra W. (Trenton, SC); Sexton, William C. (Aiken, SC); Heckendorn, Frank M. (Aiken, SC)
Research priorities in land use and land-cover change for the Earth system and integrated assessment modelling
). Copyright ? 2010 Royal Meteorological Society and Crown Copyright. KEY WORDS land use; land cover; Earth system models; integrated assessment models; research priorities Received 12 January 2009; Revised 9 March 2010; Accepted 14 March 2010 1. Introduction 1... biogeophysical, socio- economic and human decision-making perspectives. The Earth System Modeling (ESM) and the Integrated Assessment Modeling (IAM) communities play an impor- tant role in understanding and quantifying Earth system analysis and, specifically...
Hibbard, Kathy; Janetos, Anthony; van Vuuren, Detlef P.; Pongtatz, Julia; Rose, Steven K.; Betts, Richard; Herold, Martin; Feddema, Johannes J.
Robust energy transfer mechanism via precession resonance in nonlinear turbulent wave systems
A robust energy transfer mechanism is found in nonlinear wave systems, which favours transfers towards modes interacting via triads with nonzero frequency mismatch, applicable in meteorology, nonlinear optics and plasma wave turbulence. We introduce the concepts of truly dynamical degrees of freedom and triad precession. Transfer efficiency is maximal when the triads' precession frequencies resonate with the system's nonlinear frequencies, leading to a collective state of synchronised triads with strong turbulent cascades at intermediate nonlinearity. Numerical simulations confirm analytical predictions.
Miguel D. Bustamante; Brenda Quinn; Dan Lucas
Office of Scientific and Technical Information (OSTI)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: CrystalFG36-08GO18149Speeding access toSpeedingSpeeding accessa Higgs-like
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: CrystalFG36-08GO18149Speeding access toSpeedingSpeeding accessa
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the ContributionsArmsSpeedingSpeeding accessandBusinessDevelopmentObligations
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the ContributionsArmsSpeedingSpeeding
Observable Proxies For 26 Al Enhancement
We consider the cospatial production of elements in supernova explosions to find observationally detectable proxies for enhancement of {sup 26}Al in supernova ejecta and stellar systems. Using four progenitors we explore a range of 1D explosions at different energies and an asymmetric 3D explosion. We find that the most reliable indicator of the presence of {sup 26}Al in unmixed ejecta is a very low S/Si ratio ({approx} 0.05). Production of N in O/S/Si-rich regions is also indicative. The biologically important element P is produced at its highest abundance in the same regions. Proxies should be detectable in supernova ejecta with high spatial resolution multi wavelength observations, but the small absolute abundance of material injected into a proto-planetary disk makes detection unlikely in existing or forming stellar/planetary systems.
Fryer, Christopher L [Los Alamos National Laboratory; Young, Patrick A [Los Alamos National Laboratory; Ellinger, Carola I [ASU; Arnett, William D [UNIV ARIZONA
Using the Galileoscope in astronomical observations
This project aims to attract school students and teachers from the state education system from Ca\\c{c}apava do Sul - RS to Sciences and specially to Astronomy. We made astronomical observations using a Galileoscope choosing the Moon as a primary target. We also observed others objects that present high brightness in the night sky. The selection of targets, and their identification during the observations were carried out by a free software of planetary simulation, Stellarium. The results were in qualitative form and they show the great interest demonstrated by those participating in the project. Furthermore, this project helped to improve the understanding of the physical proprieties of the night sky objects (e.g. color). Finally, the project has showed that using a simple equipment and of relatively low cost it is possible to bring more people, specially the young students, to the Science World and to Astronomy.
Oliveira, V A
Sources of Gravitational Waves: Theory and Observations
Gravitational-wave astronomy will soon become a new tool for observing the Universe. Detecting and interpreting gravitational waves will require deep theoretical insights into astronomical sources. The past three decades have seen remarkable progress in analytical and numerical computations of the source dynamics, development of search algorithms and analysis of data from detectors with unprecedented sensitivity. This Chapter is devoted to examine the advances and future challenges in understanding the dynamics of binary and isolated compact-object systems, expected cosmological sources, their amplitudes and rates, and highlights of results from gravitational-wave observations. All of this is a testament to the readiness of the community to open a new window for observing the cosmos, a century after gravitational waves were first predicted by Albert Einstein.
Alessandra Buonanno; B. S. Sathyaprakash
The INL Management Observation Program (MOP) is designed to improve managers and supervisors understanding of work being performed by employees and the barriers impacting their success. The MOP also increases workers understanding of managementsÆ expectations as they relate to safety, security, quality, and work performance. Management observations (observations) are designed to improve the relationship and trust between employees and managers through increased engagement and interactions between managers and researchers in the field. As part of continuous improvement, NS&T management took initiative to focus on the participation and quality of observations in FY 14. This quarterly report is intended to (a) summarize the participation and quality of managementÆs observations, (b) assess observations for commonalities or trends related to facility or process barriers impacting research, and (c) provide feedback and make recommendations for improvements NS&TÆs MOP.
Gianotto, David
Gamma Ray Burst Afterglow Observations.
??Gamma ray bursts (GRBs) are among the most luminous explosions in the universe. We present an overview of the observational history of GRBs and theģ (more)
Updike, Adria
Passive solar systems performance under conditions in Bulgaria
This paper presents energy performance of 12 passive solar systems for three climatically different zones of Bulgaria. The results are compared with a base-case residential house that has a design typical for these areas. The different passive solar systems are compared on the basis of the percentage of solar savings and the yield, which is the annual net benefit of adding the passive solar system. The analyses are provided based on monthly meteorological data, and the method used for calculations is the Solar Load Ratio. Recommendations for Bulgarian conditions are given. 5 refs., 4 figs., 1 tab.
Lekov, A.B.; Balcomb, J.D.
8, 88178846, 2008 Observed boundary-
ACPD 8, 8817┬Ł8846, 2008 Observed boundary- layer/mesoscale impacts on Saharan dust J. H. Marsham et and Enviroment, University of Leeds, Leeds, UK 2 Institut f┬©ur Meteorologie und Klimaforschung, firstname.lastname@example.com) 8817 #12;ACPD 8, 8817┬Ł8846, 2008 Observed boundary- layer/mesoscale impacts on Saharan dust J. H
Loop quantum gravity and observations
Quantum gravity has long been thought to be completely decoupled from experiments or observations. Although it is true that smoking guns are still missing, there are now serious hopes that quantum gravity phenomena might be tested. We review here some possible ways to observe loop quantum gravity effects either in the framework of cosmology or in astroparticle physics.
A. Barrau; J. Grain
SEPTEMBER 2002 2509B U R G E R S E T A L . 2002 American Meteorological Society
are being developed and tested that in addition assimilate sea-level anomalies observed by satellite radar are Oschlies and Willebrand (1996), who related sea-surface height in- crements from altimeter measurements
van Leeuwen, Peter Jan
Observable signatures of general relativistic dynamics in compact binaries
The effects of general relativity (GR) in astrophysical systems are often difficult to calculate, but they can have important consequences for observables. This thesis considers the impact of previously-ignored GR effects ...
Lang, Ryan N. (Ryan Nathan)
Constraining cloud lifetime effects of aerosols using A-Train satellite observations
Aerosol indirect effects have remained the largest uncertainty in estimates of the radiative forcing of past and future climate change. Observational constraints on cloud lifetime effects are particularly challenging since it is difficult to separate aerosol effects from meteorological influences. Here we use three global climate models, including a multi-scale aerosol-climate model PNNL-MMF, to show that the dependence of the probability of precipitation on aerosol loading, termed the precipitation frequency susceptibility (S{sub pop}), is a good measure of the liquid water path response to aerosol perturbation ({lambda}), as both Spop and {lambda} strongly depend on the magnitude of autoconversion, a model representation of precipitation formation via collisions among cloud droplets. This provides a method to use satellite observations to constrain cloud lifetime effects in global climate models. S{sub pop} in marine clouds estimated from CloudSat, MODIS and AMSR-E observations is substantially lower than that from global climate models and suggests a liquid water path increase of less than 5% from doubled cloud condensation nuclei concentrations. This implies a substantially smaller impact on shortwave cloud radiative forcing (SWCF) over ocean due to aerosol indirect effects than simulated by current global climate models (a reduction by one-third for one of the conventional aerosol-climate models). Further work is needed to quantify the uncertainties in satellite-derived estimates of S{sub pop} and to examine S{sub pop} in high-resolution models.
Wang, Minghuai; Ghan, Steven J.; Liu, Xiaohong; Ecuyer, Tristan L.; Zhang, Kai; Morrison, H.; Ovchinnikov, Mikhail; Easter, Richard C.; Marchand, Roger; Chand, Duli; Qian, Yun; Penner, Joyce E.
Implementing Best Practices for Data Quality Assessment of the National Renewable Energy Laboratory?s Solar Resource and Meteorological Assessment Project: Preprint
Effective solar radiation measurements for research and economic analyses require a strict protocol for maintenance, calibration, and documentation to minimize station downtime and data corruption. The National Renewable Energy Laboratory's Concentrating Solar Power: Best Practices Handbook for the Collection and Use of Solar Resource Data includes guidelines for operating a solar measurement station. This paper describes a suite of automated and semi-automated routines based on the best practices handbook as developed for the National Renewable Energy Laboratory Solar Resource and Meteorological Assessment Project. These routines allow efficient inspection and data flagging to alert operators of conditions that require immediate attention. Although the handbook is targeted for concentrating solar power applications, the quality-assessment procedures described are generic and should benefit many solar measurement applications. The routines use data in one-minute measurement resolution, as suggested by the handbook, but they could be modified for other time scales.
2072 VOLUME 32J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y 2002 American Meteorological Society
2072 VOLUME 32J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y 2002 American Meteorological Society Stabilization of Climate Regimes by Noise in a Simple Model of the Thermohaline hysteresis responses to steady changes in freshwater forcing, such that the transitions between regimes
Monahan, Adam Hugh
1094 VOLUME 32J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y 2002 American Meteorological Society
Meteorological Society NOTES AND CORRESPONDENCE Midlatitude Wind Forcing and Subduction of Temperature Anomalies may also be generated by remote wind-forcing effects, through their impact on the position of the LPVP response to localized anomalous surface wind and buoyancy forcings. Wind stress and surface cooling
1036 VOLUME 34J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y 2004 American Meteorological Society
or deeper in the thermocline as well. Subsurface cooling in the wind-forcing region reduces the remote Meteorological Society Remote Wind-Driven Overturning in the Absence of the Drake Passage Effect BARRY A. KLINGER winds to drive strong remote meridional overturning. Here, idealized numerical experiments examine
Drijfhout, Sybren
1550 VOLUME 31J O U R N A L O F P H Y S I C A L O C E A N O G R A P H Y 2001 American Meteorological Society
Meteorological Society Radiation of Mixed Layer Near-Inertial Oscillations into the Ocean Interior J. MOEHLIS (Manuscript received 17 December 1999, in final form 28 August 2000) ABSTRACT The radiation from the mixed layer into the interior of the ocean of near-inertial oscillations in the presence of the beta effect
Moehlis, Jeff
Cite as: Lundquist, J.K., F. K. Chow, J. D. Mirocha, and K.A. Lundquist, 2007: An Improved WRF for Urban-Scale and Complex-Terrain Applications. American Meteorological Society's 7
method (IBM) approach to account for the effects of urban geometries and complex terrain. Companion of flow and dispersion in complex geometries such as urban areas, as well as new simulation capabilities for Urban-Scale and Complex-Terrain Applications. American Meteorological Society's 7 th Symposium
Chow, Fotini Katopodes
1462 VOLUME 54J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S 1997 American Meteorological Society
,* AND LIGUANG WU Department of Meteorology, School of Ocean and Earth Science and Technology, University experiments with a single-layer, primitive equation model. It is found that cyclonic (anticyclonic) shears of the beta gyre amplitude and phase angle is advanced to interpret the numerical model results. In this model
Wang, Bin
Rigollier C., Lefvre M., Cros S., Wald L., 2003, Heliosat 2: an improved method for the mapping of the solar radiation from Meteosat imagery. In Proceedings of the 2002 EUMETSAT Meteorological Satellite
of the solar radiation from Meteosat imagery. In Proceedings of the 2002 EUMETSAT Meteorological Satellite. HELIOSAT 2: AN IMPROVED METHOD FOR THE MAPPING OF THE SOLAR RADIATION FROM METEOSAT IMAGERY C. Rigollier, M INTRODUCTION Mapping solar radiation at the ground level is an important issue for several applications
Robust energy transfer mechanism and critically balanced turbulence via non-resonant triads in nonlinear wave systems
A robust energy transfer mechanism is found in nonlinear wave systems, which favours transfers towards modes interacting via non-resonant triads, applicable in meteorology, nonlinear optics and plasma wave turbulence. Transfer efficiency is maximal when the frequency mismatch of the non-resonant triad balances the system's nonlinear frequency: at intermediate levels of oscillation amplitudes an instability is triggered that explores unstable manifolds of periodic orbits, so turbulent cascades are most efficient at intermediate nonlinearity. Numerical simulations confirm analytical predictions.
Miguel D. Bustamante; Brenda Quinn
Nembhard (2002) 1 Individual Observation Process Monitoring Charts
observations. The Shewhart chart has been well-discussed in the literature and introductory texts on SPC (seeNembhard (2002) 1 Individual Observation Process Monitoring Charts for Systems with Response Lags Engineering April 2002 Abstract Previously, it has been held that statistical process control (SPC
Nembhard, Harriet Black
What is the reference frame of an accelerated observer?
The general construction of extended refrence frames for noninertial observers in flat space is studied. It is shown that, if the observer moves inertially before and after an arbitrary acceleration and rotation, the region where reference frames can coincide with an inertial system is bounded for final velocities exceeding 0.6 c.
K. -P. Marzlin
Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft
Power line harmonic radiation (PLHR) observed by the DEMETER spacecraft F. Nemec,1,2 O. Santoli┬┤k,3 January 2006; published 22 April 2006. [1] Results of a systematic survey of Power Line Harmonic Radiation from the electric power systems which are magnetically conjugated with the place of observation
Santolik, Ondrej
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY Q. J. R. Meteorol. Soc. 136(s1): 289303 (2010)
Rainfall Measuring Mission TRMM ┬Ł radar calibration are inconsistent at the 1┬Ł2 dB level for unknown-band radar observations are integrated with rainfall measurements from an extensive network of gauges regions of individual squall lines. The Ze ┬ŁR relationships based solely on radar measurements directly
15 DECEMBER 2003 3021H A F N E R A N D X I E 2003 American Meteorological Society
atmospheric model with full physics is used to investigate the cause of this long wake. While previous wind┬Łwake the warm water band. The model response in the wind and cloud fields supports the hypothesis that ocean Hawaii, mountains generate separate wind wakes in the model lee of individual islands as observed
Xie, Shang-Ping
Direct observation of time reversal violation
A direct evidence for Time Reversal Violation (TRV) means an experiment that, considered by itself, clearly shows TRV independent of, and unconnected to, the results for CP Violation. No existing result before the recent BABAR experiment with entangled neutral B mesons had demonstrated TRV in this sense. There is a unique opportunity for a search of TRV with unstable particles thanks to the Einstein-Podolsky-Rosen (EPR) Entanglement between the two neutral mesons in B, and PHI, Factories. The two quantum effects of the first decay as a filtering measurement and the transfer of information to the still living partner allow performing a genuine TRV asymmetry with the exchange of 'in' and 'out' states. With four independent TRV asymmetries, BABAR observes a large deviation of T-invariance with a statistical significance of 14 standard deviations, far more than needed to declare the result as a discovery. This is the first direct observation of TRV in the time evolution of any system.
Bernabeu, J. [Department of Theoretical Physics, University of Valencia, and IFIC, Joint Centre Univ. Valencia-CSIC (Spain)
Observational Tests of Modified Gravity
Modified gravity theories have richer observational consequences for large-scale structure than conventional dark energy models, in that different observables are not described by a single growth factor even in the linear regime. We examine the relationships between perturbations in the metric potentials, density and velocity fields, and discuss strategies for measuring them using gravitational lensing, galaxy cluster abundances, galaxy clustering/dynamics and the ISW effect. We show how a broad class of gravity theories can be tested by combining these probes. A robust way to interpret observations is by constraining two key functions: the ratio of the two metric potentials, and the ratio of the Gravitational ``constant'' in the Poisson equation to Newton's constant. We also discuss quasilinear effects that carry signatures of gravity, such as through induced three-point correlations. Clustering of dark energy can mimic features of modified gravity theories and thus confuse the search for distinct signatures of such theories. It can produce pressure perturbations and anisotropic stresses, which breaks the equality between the two metric potentials even in general relativity. With these two extra degrees of freedom, can a clustered dark energy model mimic modified gravity models in all observational tests? We show with specific examples that observational constraints on both the metric potentials and density perturbations can in principle distinguish modifications of gravity from dark energy models. We compare our result with other recent studies that have slightly different assumptions (and apparently contradictory conclusions).
Bhuvnesh Jain; Pengjie Zhang
Observational Approach to Chromium Site Remediation - 13266
Production reactors at the U.S. Department of Energy's (DOE) Hanford Site in Richland, Washington, required massive quantities of water for reactor cooling and material processing. To reduce corrosion and the build-up of scale in pipelines and cooling systems, sodium dichromate was added to the water feedstock. Spills and other releases at the makeup facilities, as well as leaks from miles of pipelines, have led to numerous areas with chromium-contaminated soil and groundwater, threatening fish populations in the nearby Columbia River. Pump-and-treat systems have been installed to remove chromium from the groundwater, but significant contamination remain in the soil column and poses a continuing threat to groundwater and the Columbia River. Washington Closure Hanford, DOE, and regulators are working on a team approach that implements the observational approach, a strategy for effectively dealing with the uncertainties inherent in subsurface conditions. Remediation of large, complex waste sites at a federal facility is a daunting effort. It is particularly difficult to perform the work in an environment of rapid response to changing field and contamination conditions. The observational approach, developed by geotechnical engineers to accommodate the inherent uncertainties in subsurface conditions, is a powerful and appropriate method for site remediation. It offers a structured means of quickly moving into full remediation and responding to the variations and changing conditions inherent in waste site cleanups. A number of significant factors, however, complicate the application of the observational approach for chromium site remediation. Conceptual models of contamination and site conditions are difficult to establish and get consensus on. Mid-stream revisions to the design of large excavations are time-consuming and costly. And regulatory constraints and contract performance incentives can be impediments to the flexible responses required under the observational approach. The WCH project team is working closely with stakeholders and taking a number of steps to meet these challenges in a continuing effort to remediate chromium contaminated soil in an efficient and cost-effective manner. (authors)
Scott Myers, R. [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)] [Washington Closure Hanford, 2620 Fermi, Richland, Washington 99354 (United States)
1 JANUARY 2004 21T O N I A Z Z O E T A L . 2004 American Meteorological Society
with preindustrial atmospheric greenhouse gas composition and with the Greenland ice sheet removed. Two separate pressure center that forces cyclone systems (and hence precipitation) to skirt along its sides with little
Huybrechts, Philippe
Observation of relativistic antihydrogen atoms
An observation of relativistic antihydrogen atoms is reported in this dissertation. Experiment 862 at Fermi National Accelerator Laboratory observed antihydrogen atoms produced by the interaction of a circulating beam of high momentum (3 < p < 9 GeV/c) antiprotons and a jet of molecular hydrogen gas. Since the neutral antihydrogen does not bend in the antiproton source magnets, the detectors could be located far from the interaction point on a beamline tangent to the storage ring. The detection of the antihydrogen is accomplished by ionizing the atoms far from the interaction point. The positron is deflected by a magnetic spectrometer and detected, as are the back to back photons resulting from its annihilation. The antiproton travels a distance long enough for its momentum and time of flight to be measured accurately. A statistically significant sample of 101 antihydrogen atoms has been observed. A measurement of the cross section for {bar H}{sup 0} production is outlined within. The cross section corresponds to the process where a high momentum antiproton causes e{sup +} e{sup -} pair creation near a nucleus with the e{sup +} being captured by the antiproton. Antihydrogen is the first atom made exclusively of antimatter to be detected. The observation experiment's results are the first step towards an antihydrogen spectroscopy experiment which would measure the n = 2 Lamb shift and fine structure.
Blanford, Glenn DelFosse
Regularized Nonlinear Moving Horizon Observer for Detectable Systems
], Alessandri et al. [2008] for different formulation relying on somewhat different assumptions. Such a moving
Observing ocean changes at the nation's first SWAC system
(conductivity, temperature, pressure) Ę + oxygen, fluorescence and turbidity Ę ADCP: 300kHz Ę Nitrate sensor-2 years operational Items of note and path forward Photo: Christopher Pala, www.onewater.org Mahalo
Observations of englacial water passages: a fracture-dominated system
hydraulics of glaciers have focused on the subglacial regime. In temperate alpine glaciers and ice caps controls the spatial distribution of water at the bed, which may affect local ice movement. These passages and the outward melting of the ice walls due to the frictional heat produced by the flowing water. The processes
Jacobel, Robert W.
The Duality of State and Observation in Probabilistic Transition Systems
, Canada 2 Google Inc., Mountain View, California, USA 3 McGill University, Montr┬┤eal, Qu┬┤ebec Abstract is expectation maximization (EM) [11], but for POMDPs this approach is plagued by local minima (more so than
Pineau, Joelle
┬┤eal, Qu┬┤ebec 2 Google Inc., Mountain View, California, USA 3 Morgan Stanley, Montreal, Canada Abstract algorithmic solution is ex- pectation maximization (EM) [11], but for POMDPs this approach is plagued by local
Panangaden, Prakash
Observation of Entropic Effect on Conformation Changes of Complex Systems
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the ContributionsArmsSpeedingSpeedingUnder Well-Controlled Temperature Condition. |
15 JUNE 2003 2067P O L Y A K O V E T A L . 2003 American Meteorological Society
%┬Ł50% since the beginning of the industrial era, may drive sub- stantial changes in the climate system. Using and Mann 2000) as well as diagnosis of slow thermohaline circulation changes in coupled climate model Arctic and Antarctic Research Institute, St. Petersburg, Russia #Institute of Marine Science, University
X-ray Observations of Mrk 231
This paper presents new X-ray observations of Mrk 231, an active galaxy of particular interest due to its large infrared luminosity and the presence of several blueshifted broad absorption line (BAL) systems, a phenomenon observed in a small fraction of QSOs. A ROSAT HRI image of Mrk 231 is presented, this shows an extended region of soft X-ray emission, covering several tens of kpc, consistent with the extent of the host galaxy. An ASCA observation of Mrk 231 is also presented. Hard X-rays are detected but the data show no significant variability in X-ray flux. The hard X-ray continuum is heavily attenuated and X-ray column estimates range from ~ 2 x 10^{22} - 10^{23} cm^{-2} depending on whether the material is assumed to be neutral or ionized, and on the model assumed for the extended X-ray component. These ASCA data provide only the second hard X-ray spectrum of a BAL AGN presented to date. The broad-band spectral-energy-distribution of the source is discussed. While Mrk 231 is X-ray weak compared to Seyfert 1 galaxies, it has an optical-to-X-ray spectrum typical of a QSO.
T. J. Turner
Observation of an Antimatter Hypernucleus
Nuclear collisions recreate conditions in the universe microseconds after the Big Bang. Only a very small fraction of the emitted fragments are light nuclei, but these states are of fundamental interest. We report the observation of antihypertritons - composed of an antiproton, antineutron, and antilambda hyperon - produced by colliding gold nuclei at high energy. Our analysis yields 70 {+-} 17 antihypertritons ({sub {bar {Lambda}}}{sup 3}{bar H}) and 157 {+-} 30 hypertritons ({sub {Lambda}}{sup 3}H). The measured yields of {sub {Lambda}}{sup 3}H ({sub {bar {Lambda}}}{sup 3}{bar H}) and {sup 3}He ({sup 3}{ovr He}) are similar, suggesting an equilibrium in coordinate and momentum space populations of up, down, and strange quarks and antiquarks, unlike the pattern observed at lower collision energies. The production and properties of antinuclei, and nuclei containing strange quarks, have implications spanning nuclear/particle physics, astrophysics, and cosmology.
STAR Collaboration; Abelev, Betty
Observational Consequences of a Landscape
In this paper we consider the implications of the "landscape" paradigm for the large scale properties of the universe. The most direct implication of a rich landscape is that our local universe was born in a tunnelling event from a neighboring vacuum. This would imply that we live in an open FRW universe with negative spatial curvature. We argue that the "overshoot" problem, which in other settings would make it difficult to achieve slow roll inflation, actually favors such a cosmology. We consider anthropic bounds on the value of the curvature and on the parameters of inflation. When supplemented by statistical arguments these bounds suggest that the number of inflationary efolds is not very much larger than the observed lower bound. Although not statistically favored, the likelihood that the number of efolds is close to the bound set by observations is not negligible. The possible signatures of such a low number of efolds are briefly described.
Ben Freivogel; Matthew Kleban; Maria Rodriguez Martinez; Leonard Susskind
ARM - Midlatitude Continental Convective Clouds Experiment (MC3E): Multi-Frequency Profilers, Surface Meteorology (williams-surfmet)
This data was collected by the NOAA 449-MHz and 2.8-GHz profilers in support of the Department of Energy (DOE) and NASA sponsored Mid-latitude Continental Convective Cloud Experiment (MC3E). The profiling radars were deployed in Northern Oklahoma at the DOE Atmospheric Radiation Mission (ARM) Southern Great Plans (SGP) Central Facility from 22 April through 6 June 2011. NOAA deployed three instruments: a Parsivel disdrometer, a 2.8-GHz profiler, and a 449-MHz profiler. The parasivel provided surface estimates of the raindrop size distribution and is the reference used to absolutely calibrate the 2.8 GHz profiler. The 2.8-GHz profiler provided unattenuated reflectivity profiles of the precipitation. The 449-MHz profiler provided estimates of the vertical air motion during precipitation from near the surface to just below the freezing level. By using the combination of 2.8-GHz and 449-MHz profiler observations, vertical profiles of raindrop size distributions can be retrieved. The profilers are often reference by their frequency band: the 2.8-GHz profiler operates in the S-band and the 449-MHz profiler operates in the UHF band. The raw observations are available as well as calibrated spectra and moments. This document describes how the instruments were deployed, how the data was collected, and the format of the archived data.
Williams, Christopher; Jensen, Mike
Data Dictionary for Observation Data
Natural Heritage Program (CNHP) from our Biodiversity Tracking and Conservation System (BIOTICS) database. Element A biodiversity unit of conservation attention and action for which a Heritage Conservation Status levels for communities). Elements may also be recognized for biodiversity units for which
We have used the PACS instrument on the Herschel Space Observatory to observe eight cataclysmic variables at 70 and 160 {mu}m. Of these eight objects, only AM Her was detected. We have combined the Herschel results with ground-based, Spitzer, and WISE observations to construct spectral energy distributions for all of the targets. For the two dwarf novae in the sample, SS Cyg and U Gem, we find that their infrared luminosities are completely dominated by their secondary stars. For the two highly magnetic 'polars' in our survey, AM Her and EF Eri, we find that their mid-infrared excesses, previously attributed to circumbinary dust emission, can be fully explained by cyclotron emission. The WISE light curves for both sources show large, orbitally modulated variations that are identically phased to their near-IR light curves. We propose that significant emission from the lowest cyclotron harmonics (n {<=} 3) is present in EF Eri and AM Her. Previously, such emission would have been presumed to be optically thick, and not provide significant orbitally modulated flux. This suggests that the accretion onto polars is more complicated than assumed in the simple models developed for these two sources. We develop a model for the near-/mid-IR light curves for WZ Sge with an L2 donor star that shows that the ellipsoidal variations from its secondary star are detected. We conclude that none of the targets surveyed have dusty circumbinary disks.
Harrison, Thomas E.; Hamilton, Ryan T. [Department of Astronomy, New Mexico State University, Box 30001, MSC 4500, Las Cruces, NM 88003-8001 (United States); Tappert, Claus [Departamento de Fisica y Astronomia, Universidad de Valparaiso, Avda. Gran Bretana 1111, Valparaiso (Chile); Hoffman, Douglas I. [Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125 (United States); Campbell, Ryan K., E-mail: email@example.com, E-mail: email@example.com, E-mail: firstname.lastname@example.com, E-mail: email@example.com, E-mail: firstname.lastname@example.com [Department of Physics and Astronomy, Humboldt State University, 1 Harpst St., Arcata, CA 95521 (United States)
Design and performance of the Georgia Tech Aquatic Center photovoltaic system. Final report
A building-integrated DC PV array has been constructed on the Georgia Tech campus. The array is mounted on the roof of the Georgia Tech Aquatic Center (GTAC), site of the aquatic events during the 1996 Paralympic and Olympic Games in Atlanta. At the time of its construction, it was the world`s largest roof-mounted photovoltaic array, comprised of 2,856 modules and rates at 342 kW. This section describes the electrical and physical layout of the PV system, and the associated data acquisition system (DAS) which monitors the performance of the system and collects measurements of several important meteorological parameters.
Rohatgi, A.; Begovic, M.; Long, R.; Ropp, M.; Pregelj, A.
Null geodesics and observational cosmology
The Universe is not isotropic or spatially homogeneous on local scales. The averaging of local inhomogeneities in general relativity can lead to significant dynamical effects on the evolution of the Universe, and even if the effects are at the 1% level they must be taken into account in a proper interpretation of cosmological observations. We discuss the effects that averaging (and inhomogeneities in general) can have on the dynamical evolution of the Universe and the interpretation of cosmological data. All deductions about cosmology are based on the paths of photons. We discuss some qualitative aspects of the motion of photons in an averaged geometry, particularly within the context of the luminosity distance-redshift relation in the simple case of spherical symmetry.
A. A. Coley
Laser frequency combs for astronomical observations
A direct measurement of the universe's expansion history could be made by observing in real time the evolution of the cosmological redshift of distant objects. However, this would require measurements of Doppler velocity drifts of about 1 centimeter per second per year, and astronomical spectrographs have not yet been calibrated to this tolerance. We demonstrate the first use of a laser frequency comb for wavelength calibration of an astronomical telescope. Even with a simple analysis, absolute calibration is achieved with an equivalent Doppler precision of approximately 9 meters per second at about 1.5 micrometers - beyond state-of-the-art accuracy. We show that tracking complex, time-varying systematic effects in the spectrograph and detector system is a particular advantage of laser frequency comb calibration. This technique promises an effective means for modeling and removal of such systematic effects to the accuracy required by future experiments to see direct evidence of the universe's putative acceleration.
Tilo Steinmetz; Tobias Wilken; Constanza Araujo-Hauck; Ronald Holzwarth; Theodor W. Hõnsch; Luca Pasquini; Antonio Manescau; Sandro D'Odorico; Michael T. Murphy; Thomas Kentischer; Wolfgang Schmidt; Thomas Udem
Autonomous observing strategies for the ocean carbon cycle
Understanding the exchanges of carbon between the atmosphere and ocean and the fate of carbon delivered to the deep sea is fundamental to the evaluation of ocean carbon sequestration options. An additional key requirement is that sequestration must be verifiable and that environmental effects be monitored and minimized. These needs can be addressed by carbon system observations made from low-cost autonomous ocean-profiling floats and gliders. We have developed a prototype ocean carbon system profiler based on the Sounding Oceanographic Lagrangian Observer (SOLO; Davis et al., 1999). The SOLO/ carbon profiler will measure the two biomass components of the carbon system and their relationship to physical variables, such as upper ocean stratification and mixing. The autonomous observations within the upper 1500 m will be made on daily time scales for periods of months to seasons and will be carried out in biologically dynamic locations in the world's oceans that are difficult to access with ships (due to weather) or observe using remote sensing satellites (due to cloud cover). Such an observational capability not only will serve an important role in carbon sequestration research but will provide key observations of the global ocean's natural carbon cycle.
Bishop, James K.; Davis, Russ E.
Disk Evolution in Young Binaries: from Observations to Theory
The formation of a binary system surrounded by disks is the most common outcome of stellar formation. Hence studying and understanding the formation and the evolution of binary systems and associated disks is a cornerstone of star formation science. Moreover, since the components within binary systems are coeval and the sizes of their disks are fixed by the tidal truncation of their companion, binary systems provide an ideal "laboratory" in which to study disk evolution under well defined boundary conditions. In this paper, we review observations of several inner disk diagnostics in multiple systems, including hydrogen emission lines (indicative of ongoing accretion), $K-L$ and $K-N$ color excesses (evidence of warm inner disks), and polarization (indicative of the relative orientations of the disks around each component). We examine to what degree these properties are correlated within binary systems and how this degree of correlation depends on parameters such as separation and binary mass ratio. These findings will be interpreted both in terms of models that treat each disk as an isolated reservoir and those in which the disks are subject to re-supply from some form of circumbinary reservoir, the observational evidence for which we will also critically review. The planet forming potential of multiple star systems is discussed in terms of the relative lifetimes of disks around single stars, binary primaries and binary secondaries. Finally, we summarize several potentially revealing observational problems and future projects that could provide further insight into disk evolution in the coming decade
J. -L. Monin; C. J. Clarke; L. Prato; C. McCabe
Diurnal cycle of air pollution in the Kathmandu Valley, Nepal: Observations
During the dry season of 2004¢2005 we carried out field measurements of air pollution and meteorology in the Kathmandu Valley, Nepal, a bowl-shaped urban basin in the Himalayan foothills of Nepal. We measured the trace ...
Panday, Arnico K.
High-resolution radio observations of X-ray binaries
I present an overview of important results obtained using high-resolution very long baseline interferometry (VLBI) observations of X-ray binary systems. These results derive from both astrometric observations and resolved imaging of sources, from black holes to neutron star and even white dwarf systems. I outline a number of upcoming developments in instrumentation, both new facilities and ongoing upgrades to existing VLBI instruments, and I conclude by identifying a number of important areas of investigation where VLBI will be crucial in advancing our understanding of X-ray binaries.
James Miller-Jones
Site in the Sky: Climate Facility Offers New Observational Capabilities
This article is intended for publication in the trade journal, Meteorological Technology International. Its purpose is to introduce the audience to the ARM Climate Research Facility by describing its key capabilities (fixed, mobile and aerial facilities) with examples of field campaigns using each. It also summarizes coming enhancements to the facility through the American Recovery and Reinvestment Act of 2009, and mentions the data archive and proposal opportunities to use the facility.
Roeder, Lynne R.
Observational Field Assessment of Invasiveness for
synthesis............................................................... 8 Jatropha observations.................................................................. 9 Jatropha risk synthesis................................................................. 12 and invasiveness. Observations were made around field plantings of banagrass, Jatropha (Jatropha curcas
First Observation of Plasmarons in Graphene
First Observation of Plasmarons in Graphene First Observation of Plasmarons in Graphene Print Wednesday, 30 June 2010 00:00 An international team of scientists performing...
Stability and Turbulence in the Atmospheric Boundary Layer: A Comparison of Remote Sensing and Tower Observations
When monitoring winds and atmospheric stability for wind energy applications, remote sensing instruments present some advantages to in-situ instrumentation such as larger vertical extent, in some cases easy installation and maintenance, measurements of vertical humidity profiles throughout the boundary layer, and no restrictions on prevailing wind directions. In this study, we compare remote sensing devices, Windcube lidar and microwave radiometer, to meteorological in-situ tower measurements to demonstrate the accuracy of these measurements and to assess the utility of the remote sensing instruments in overcoming tower limitations. We compare temperature and wind observations, as well as calculations of Brunt-Vaisala frequency and Richardson numbers for the instrument deployment period in May-June 2011 at the U.S. Department of Energy National Renewable Energy Laboratory's National Wind Technology Center near Boulder, Colorado. The study reveals that a lidar and radiometer measure wind and temperature with the same accuracy as tower instruments, while also providing advantages for monitoring stability and turbulence. We demonstrate that the atmospheric stability is determined more accurately when the liquid-water mixing ratio derived from the vertical humidity profile is considered under moist-adiabatic conditions.
Friedrich, K.; Lundquist, J. K.; Aitken, M.; Kalina, E. A.; Marshall, R. F.
Optical monitor for observing turbulent flow
The present invention provides an apparatus and method for non-invasively monitoring turbulent fluid flows including anisotropic flows. The present invention uses an optical technique to filter out the rays travelling in a straight line, while transmitting rays with turbulence induced fluctuations in time. The output is two dimensional, and can provide data regarding the spectral intensity distribution, or a view of the turbulence in real time. The optical monitor of the present invention comprises a laser that produces a coherent output beam that is directed through a fluid flow, which phase-modulates the beam. The beam is applied to a temporal filter that filters out the rays in the beam that are straight, while substantially transmitting the fluctuating, turbulence-induced rays. The temporal filter includes a lens and a photorefractive crystal such as BaTiO.sub.3 that is positioned in the converging section of the beam near the focal plane. An imaging system is used to observe the filtered beam. The imaging system may take a photograph, or it may include a real time camera that is connected to a computer. The present invention may be used for many purposes including research and design in aeronautics, hydrodynamics, and combustion.
Albrecht, Georg F. (Livermore, CA); Moore, Thomas R. (Rochester, NY)
Interpreting observed northern hemisphere snow trends with large ensembles of climate simulations
for Atmospheric Research's Community Earth System Model. Two 40-member ensembles driven by historical radiative for Atmospheric Research's Community Earth System Model (CCSM4), in comparison with observations. Each ensemble
Data Report: Meteorological and Evapotranspiration Data from Sagebrush and Pinyon Pine/Juniper Communities at Pahute Mesa, Nevada National Security Site, 2011-2012
Pahute Mesa is a groundwater recharge area at the Nevada National Security Site. Because underground nuclear testing was conducted at Pahute Mesa, groundwater recharge may transport radionuclides from underground test sites downward to the water table; the amount of groundwater recharge is also an important component of contaminant transport models. To estimate the amount of groundwater recharge at Pahute Mesa, an INFIL3.0 recharge-runoff model is being developed. Two eddy covariance (EC) stations were installed on Pahute Mesa to estimate evapotranspiration (ET) to support the groundwater recharge modeling project. This data report describes the methods that were used to estimate ET and collect meteorological data. Evapotranspiration was estimated for two predominant plant communities on Pahute Mesa; one site was located in a sagebrush plant community, the other site in a pinyon pine/juniper community. Annual ET was estimated to be 310▒13.9 mm for the sagebrush site and 347▒15.9 mm for the pinyon pine/juniper site (March 26, 2011 to March 26, 2012). Annual precipitation measured with unheated tipping bucket rain gauges was 179 mm at the sagebrush site and 159 mm at the pinyon pine/juniper site. Annual precipitation measured with bulk precipitation gauges was 222 mm at the sagebrush site and 227 mm at the pinyon pine/juniper site (March 21, 2011 to March 28, 2012). A comparison of tipping bucket versus bulk precipitation data showed that total precipitation measured by the tipping bucket rain gauges was 17 to 20 percent lower than the bulk precipitation gauges. These differences were most likely the result of the unheated tipping bucket precipitation gauges not measuring frozen precipitation as accurately as the bulk precipitation gauges. In this one-year study, ET exceeded precipitation at both study sites because estimates of ET included precipitation that fell during the winter of 2010-2011 prior to EC instrumentation and the precipitation gauges started collecting data in March 2011.
Jasoni, Richard L [DRI; Larsen, Jessica D [DRI; Lyles, Brad F. [DRI; Healey, John M [DRI; Cooper, Clay A [DRI; Hershey, Ronald L [DRI; Lefebre, Karen J [DRI
Future prospects in n-nuclear interactions. [Polarization observables
I examine in detail two research areas, polarization observables and antiproton-nucleus reactions, which should have near-term future impact on our understanding of the interaction of medium-energy nucleons in nuclei. More speculative future experiments employing cooled beams, double spectrometer systems, and large Q-valure low momentum-transfer reactions are also discussed.
Moss, J.M.
Observation of Bogoliubov excitations in exciton-polariton condensates
LETTERS Observation of Bogoliubov excitations in exciton-polariton condensates S. UTSUNOMIYA1 predicted the occurrence of Bose┬ŁEinstein condensation (BEC) in an ideal gas of non-interacting bosonic Bose condensed system was developed by Bogoliubov in 1947, which predicted the phonon-like excitation
Loss, Daniel
Hengill geothermal volcanic complex (Iceland) characterized by integrated geophysical observations
Hengill geothermal volcanic complex (Iceland) characterized by integrated geophysical observations be used to infer the location of magma chambers or productive geothermal areas. The Hengill volcanic triple-junction complex has a well-developed geothermal system, which is being exploited to extract hot
Observation of the negative muonium ion in vacuum
The negative muonium ion (M/sup /minus//), which is the bound system of a positive muon and two electrons, has been produced and observed for the first time. Its counterpart H/sup /minus// is well known, and spectroscopy and collision studies with H/sup /minus// have yielded many fruitful results. Noteworthy are recent investigations of the photoionization of a relativistic H/sup /minus// beam. The negative positronium ion has also been formed and observed. The discovery of M/sup /minus// provides us with a new leptonic system for spectroscopy and collision studies, which may reveal interesting physics associated with mass effects. Since M/sup /minus// is a charged particle, it can also be used to produce a beam of exotic atoms with a small phase space. This dissertation is a detailed account of the observation of M/sup /minus//. 93 refs., 54 figs., 18 tabs.
Kuang, Yunan
Mobile Munitions Assessment System Field Capabilities
The US has developed, stored, tested, and conducted disposal operations on various forms of chemical munitions for several decades. The remnants of these activities have resulted in the presence of suspect CWM at more than 200 sites in the US, the District of Columbia, and the US Virgin Islands. An advanced Mobile Munitions Assessment System (Phase II MMAS) has been designed, fabricated, assembled, and tested by the Idaho National Engineering and Environmental Laboratory under contract to the US Army's Project Manager for Non-Stockpile Chemical Materiel for use in the assessment and characterization of ''non-stockpile'' chemical warfare materiel (CWM). The Phase II MMAS meets the immediate need to augment response equipment currently used by the US Army with a system that includes state-of-the-art assessment equipment and advanced sensors. The Phase II MMAS will be used for response to known storage and remediation sites. This system is designed to identify the munition type; evaluate the condition of the CWM; evaluate the environmental conditions in the vicinity of the CWM; determine if fuzes, bursters, or safety and arming devices are in place; identify the chemical fill; provide other data (e.g., meteorological data) necessary for assessing the risk associated with handling, transporting, and disposing of CWM; and record the data on a dedicated computer system. The Phase II MMAS is capable of over-the-road travel and air transport to any site for conducting rigorous assessments of suspect CWM. The Phase II MMAS utilizes a specially-designed commercial motor home to provide a means to transport an interactive network of non-intrusive characterization and assessment equipment. The assessment equipment includes radiography systems, a gamma densitometer system, a Portable Isotopic Neutron Spectroscopy (PINS) system, a Secondary Ion Mass Spectroscopy (SIMS) system, air monitoring equipment (i.e., M-90s and a field ion spectroscopy system), and a phase determination equipment Command and control equipment includes a data acquisition and handling system, two meteorological stations, video equipment, and multiple communication systems. The Phase II MMAS motor home also serves an as environmentally controlled on-site command post for the MMAS operators when deployed. The data developed by the MMAS will be used to help determine the appropriate methods and safeguards necessary to transport, store, and dispose of agent-filled munitions in a safe and environmentally acceptable manner.
A. M. Snyder; D. A. Verrill; K. D. Watts
Spatial Correlations in General Circulation Models and Observation Reanalysis
Comprehensive Ocean-Atmosphere Data Set CCSM4 Community Climate System Model Version 4 CM3 Climate Model Version 3 Mk3 Mark 3.0 CM5A Climate Model Version 5A ESM Earth System Model OBS Observations REA Reanalysis picontrol Pre-Industrial Control Run GCM General... ESM 1.9? ū 1.9? 1000 IPSL CM5A 1.9? ū 3.75? 1000 CSIRO MK3 3.2? ū 5.6? 1000 NCDC OBS 5? ū 5? - NCEP REA 2.5? ū 2.5? 65 3.1 General Circulation Models GCMs are useful tools for understanding the roles of the major climate system components. Analyses...
Sansom, Taylor Lee
The Arctic Lower Troposphere Observed Structure (ALTOS) Campaign
The ALTOS campaign focuses on operating a tethered observing system for routine in situ sampling of low-level (< 2 km) Arctic clouds. It has been a long-term hope to fly tethered systems at Barrow, Alaska, but it is clear that the Federal Aviation Administration (FAA) will not permit in-cloud tether systems at Barrow, even if unmanned aerial vehicle (UAV) operations are allowed in the future. We have provided the scientific rationale for long-term, routine in situ measurements of cloud and aerosol properties in the Arctic. The existing restricted air space at Oliktok offers an opportunity to do so.
Verlinde, J
Radio emission from Colliding-Wind Binaries: Observations and Models
We have developed radiative transfer models of the radio emission from colliding-wind binaries (CWB) based on a hydrodynamical treatment of the wind-collision region (WCR). The archetype of CWB systems is the 7.9-yr period binary WR140, which exhibits dramatic variations at radio wavelengths. High-resolution radio observations of WR140 permit a determination of several system parameters, particularly orbit inclination and distance, that are essential for any models of this system. A model fit to data at orbital phase 0.9 is shown, and some short comings of our model described.
S. M. Dougherty; J. M. Pittard; E. P. O'Connor
Observing and modeling Earths energy flows
This article reviews, from the authors perspective, progress in observing and modeling energy flows in Earth's climate system. Emphasis is placed on the state of understanding of Earth's energy flows and their susceptibility to perturbations, with particular emphasis on the roles of clouds and aerosols. More accurate measurements of the total solar irradiance and the rate of change of ocean enthalpy help constrain individual components of the energy budget at the top of the atmosphere to within {+-}2 W m{sup -2}. The measurements demonstrate that Earth reflects substantially less solar radiation and emits more terrestrial radiation than was believed even a decade ago. Active remote sensing is helping to constrain the surface energy budget, but new estimates of downwelling surface irradiance that benefit from such methods are proving difficult to reconcile with existing precipitation climatologies. Overall, the energy budget at the surface is much more uncertain than at the top of the atmosphere. A decade of high-precision measurements of the energy budget at the top of the atmosphere is providing new opportunities to track Earth's energy flows on timescales ranging from days to years, and at very high spatial resolution. The measurements show that the principal limitation in the estimate of secular trends now lies in the natural variability of the Earth system itself. The forcing-feedback-response framework, which has developed to understand how changes in Earth's energy flows affect surface temperature, is reviewed in light of recent work that shows fast responses (adjustments) of the system are central to the definition of the effective forcing that results from a change in atmospheric composition. In many cases, the adjustment, rather than the characterization of the compositional perturbation (associated, for instance, with changing greenhouse gas concentrations, or aerosol burdens), limits accurate determination of the radiative forcing. Changes in clouds contribute importantly to this adjustment and thus contribute both to uncertainty in estimates of radiative forcing and to uncertainty in the response. Models are indispensable to calculation of the adjustment of the system to a compositional change but are known to be flawed in their representation of clouds. Advances in tracking Earth's energy flows and compositional changes on daily through decadal timescales are shown to provide both a critical and constructive framework for advancing model development and evaluation.
Stevens B.; Schwartz S.
Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Pahranagat National Wildlife Refuge, Lincoln County, Nevada
The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Pahranagat NWR, Beatty, Rachel, Caliente, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data on completion of the site's sampling program.
J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer
Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Pahranagat National Wildlife Refuge, Lincoln County, Nevada
J. Englebrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer
Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Caliente, Lincoln County, Nevada
The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.
Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Crater Flat, Nye County, Nevada
The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) (cover page figure) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.
Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Crater Flat, Nye County, Nevada
J. Engelbrecht; I. Kavouras; D. Campbell; S.Campbell; S. Kohl; D. Shafer
Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Tonopah Airport, Nye County, Nevada
The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Tonopah Airport, Beatty, Rachel, Caliente, Pahranagat NWR, Crater Flat, and the Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.
J. Engelbrecht; I. Kavouras; D Campbell; S. Campbell; S. Kohl, D. Shafer
Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Tonopah Airport, Nye County, Nevada
Experiment to Characterize Tropical Cloud Systems
A major experiment to study tropical convective cloud systems and their impacts will take place around Darwin, Northern Australia in early 2006. The Tropical Warm Pool International Cloud Experiment (TWP-ICE) is a collaboration including the DOE ARM (Atmospheric Radiation Measurement) and ARM-UAV programs, NASA centers, the Australian Bureau of Meteorology, CSIRO, and universities in the USA, Australia, Japan, the UK, and Canada. TWP-ICE will be preceded in November/December 2004 by a collaborating European aircraft campaign involving the EU SCOUT-O3 and UK NERC ACTIVE projects. Detailed atmospheric measurements will be made in the Darwin area through the whole Austral summer, giving unprecedented coverage through the pre-monsoon and monsoon periods.
May, Peter T.; Mather, Jim H.; Jakob, Christian
Discrimination of quantum observables using limited resources
We address the problem of unambiguous discrimination and identification among quantum observables. We set a general framework and investigate in details the case of qubit observables. In particular, we show that perfect discrimination with two shots is possible only for sharp qubit observables (e.g. Stern-Gerlach apparatuses) associated with mutually orthogonal directions. We also show that for sharp qubit observables associated to nonorthogonal directions unambiguous discrimination with an inconclusive result is always possible.
Mario Ziman; Teiko Heinosaari
METEOROLOGICAL APPLICATIONS Meteorol. Appl. (2013)
, continuous streamflow, wildfire behaviour, crop yields, and renewable energy prediction, call for new ways Environment Canada, Dorval, Canada c MeteoSwiss, Geneva, Switzerland d Met Office, Exeter, UK e Finnish
Ebert, Beth
Environmental Problems, Kola Science Center, Apatity, 184200, Russia 6 Geophysical Institute, Department for a peer-reviewed publication. In this project, to understand the factors driving climate and ecosystem changes in the Arctic regions we considered sources, correlation and trends for different anthropogenic
Hanford Meteorological Station - Hanford Site
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCIResearchGulf of MexicoDidYouKnowForStation
Sandia National Laboratories: meteorological instrumentation
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1developmentturbine bladelifetime is the cumulativeissuesmetamaterial New
JAXA's Earth Observation Program Osamu Ochiai
JAXA's Earth Observation Program Osamu Ochiai Japan Aerospace Exploration Agency #12;1 Disasters Health Energy Climate Water 1 Japanese Main Activities of Earth Observation Weather MTSAT (JMA) Eco Earth Observation Targets (JFY) 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Observation of diamond turned OFHC copper using Scanning Tunneling Microscopy
Diamond turned OFHC copper samples have been observed within the past few months using the Scanning Tunneling Microscope. Initial results have shown evidence of artifacts which may be used to better understand the diamond turning process. The STM`s high resolution capability and three dimensional data representation allows observation and study of surface features unobtainable with conventional profilometry systems. Also, the STM offers a better quantitative means by which to analyze surface structures than the SEM. This paper discusses findings on several diamond turned OFHC copper samples having different cutting conditions. Each sample has been cross referenced using STM and SEM.
Grigg, D.A.; Russell, P.E.; Dow, T.A.
Multi-Use List for the provision of goods and services for the Australian Bureau of Meteorology for AS/NZS ISO
for AS/NZS ISO 9001 Quality Management System Training and Professional Services. Reference Number: MUL
OctOber 2010AMerIcAN MeteOrOLOGIcAL SOcIetY | 1357 AffiliAtions: Hazeleger, SeverijnS, Wang, Bintanja,
, joint model development in NWP and Earth-system modeling can be mutually beneficial. Atmospheric model in Earth-system models. Conversely, NWP models increasingly include Earth-system components. These include, and these interactions are thus explicitly incorporated into extended climate models, now re- ferred to as Earth-system
Caballero, Rodrigo
Natural geometric representation for electron local observables
An existence of the quartic identities for the electron local observables that define orthogonality relations for the 3D quantities quadratic in the electron observables is found. It is shown that the joint solution of the quartic and bilinear identities for the electron observables defines a unique natural representation of the observables. In the natural representation the vector type electron local observables have well-defined fixed positions with respect to a local 3D orthogonal reference frame. It is shown that the natural representation of the electron local observables can be defined in six different forms depending on a choice of the orthogonal unit vectors. The natural representation is used to determine the functional dependence of the electron wave functions on the local observables valid for any shape of the electron wave packet. -- Highlights: ĢQuartic identities that define the orthogonality relations for the electron local observables are found. ĢJoint solution of quartic and bilinear identities defines a unique natural representation of the electron local observables. ĢFunctional dependence of the electron wave functions on the electron local observables is determined.
Minogin, V.G., E-mail: email@example.com
The determination of the quantum state of a single system by protective observation is used to justify operationally a formulation of quantum theory on the quantum state space (projective Hilbert space) $\\cal P$. Protective observation is extended to a more general quantum theory in which the Schrodinger evolution is generalized so that it preserves the symplectic structure but not necessarily the metric in $\\cal P$. The relevance of this more general evolution to the apparant collapse of the state vector during the usual measurement, and its possible connection to gravity is suggested. Some criticisms of protective observation are answered. A comparison is made between the determination of quantum states using the geometry of $\\cal P$ by protective measurements, via a reconstruction theorem, and the determination of space-time points by means of the space-time geometry, via Einstein's hole argument. It is argued that a protective measurement may not determine a time average.
J. Anandan
We report on very high energy (E > 100 GeV) gamma-ray observations of V407 Cygni, a symbiotic binary that underwent a nova outburst producing 0.1-10 GeV gamma rays during 2010 March 10-26. Observations were made with the Very Energetic Radiation Imaging Telescope Array System during 2010 March 19-26 at relatively large zenith angles due to the position of V407 Cyg. An improved reconstruction technique for large zenith angle observations is presented and used to analyze the data. We do not detect V407 Cygni and place a differential upper limit on the flux at 1.6 TeV of 2.3 Multiplication-Sign 10{sup -12} erg cm{sup -2} s{sup -1} (at the 95% confidence level). When considered jointly with data from Fermi-LAT, this result places limits on the acceleration of very high energy particles in the nova.
Aliu, E. [Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027 (United States); Archambault, S. [Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada); Arlen, T. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States); Aune, T.; Bouvier, A. [Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 (United States); Beilicke, M.; Buckley, J. H.; Bugaev, V.; Dickherber, R. [Department of Physics, Washington University, St. Louis, MO 63130 (United States); Benbow, W. [Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645 (United States); Bradbury, S. M. [School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT (United Kingdom); Byrum, K. [Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (United States); Cannon, A.; Collins-Hughes, E. [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Cesarini, A.; Connolly, M. P. [School of Physics, National University of Ireland Galway, University Road, Galway (Ireland); Ciupik, L. [Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605 (United States); Cui, W. [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States); Decerprit, G. [DESY, Platanenallee 6, 15738 Zeuthen (Germany); Duke, C., E-mail: firstname.lastname@example.com, E-mail: firstname.lastname@example.com [Department of Physics, Grinnell College, Grinnell, IA 50112-1690 (United States); and others
Process Cooling Pumping Systems Analysis
An analysis of the mill water pumping systems at a North American manufacturing facility was conducted late las year and the following issues were observed: 1. Overpumping ¢ Both systems were overpumped to a significant degree against...
Sherman, C.
CCD Observing Manual 49 Bay State Road
Stars 5.6. Supernovae/Novae Patrols 5.7. Designing Your Own: Using AAVSO VSX 6.0 Observing Techniques 6
Ellingson, Steven W.
Self-potential observations during hydraulic fracturing
potential measurements during hydraulic fracturing of BunterSP response during hydraulic fracturing. Citation: Moore, J.observations during hydraulic fracturing, J. Geophys. Res. ,
Moore, J R; Glaser, Steven D
EA-1964: National Ecological Observation Network (NEON)
The National Science Foundation (NSF) prepared an EA that evaluated potential environmental impacts of the proposed National Ecological Observation Network (NEON), a continental-scale network of...
DOE/NV/26383-LTR2008-01 Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Caliente, Lincoln County, Nevada
Visual-inertial structure from motion: observability vs minimum number of sensors
and IMU frames. The fact that the yaw angle is not observable is an obvious consequence of the system system here considered only consists of a monocular camera and 1 or 2 accelerometers. This analysis has accelerometer. By removing a further accelerometer, if the camera is not extrinsically calibrated, the system
Quarterly Journal of the Royal Meteorological Society Q. J. R. Meteorol. Soc. 138: 5671, January 2012 A Initiation of daytime local convection in a semi-arid region
┬Ł71. DOI:10.1002/qj.903 1. Introduction Current climate and Earth system models exhibit large biases their representation in climate and Earth system models. Recent studies on the diurnal cycle and the transition from
Is physical practice necessary for parallel development of implicit and explicit sequence knowledge? Evidence from observational learning
the explicit and implicit systems. Unexpectedly, performance on the indirect test for the observers that revealed explicit learning was similar to that reported for the model, indicating parallel activation also occurred during observation. This finding...
Zihlman, Kirk A.
Journal of the Meteorological Society of Japan, Vol. 82, No. 6, pp. 1599--1628, 2004 1599 Regional Climate Modeling: Progress, Challenges, and Prospects
, and development of regional earth system models. It is believed that with the demonstrated credibility of RCMs
1 NOVEMBER 1999 3663G O T T W A L D A N D G R I M S H A W 1999 American Meteorological Society
. The un- derstanding of the life cycle of blocking systems is es- sential for long-range weather the effect of topography on the formation and development of blocking systems. Simulations by Lindzen (1986 of the equations. This system exhibits a rich dynamics that is suggestive of atmospheric blocking such as stable
Gottwald, Georg A.
HISTORY OF WEATHER OBSERVATIONS MOUNT AUBURN, OHIO 1861 - 1881 October 2004 Prepared By Glen Conner Center under the auspices of the Climate Database Modernization Program, NOAA's National Climatic Data;1 HISTORY OF WEATHER OBSERVATIONS MOUNT AUBURN, OHIO 1861-1881 Glen Conner Kentucky State Climatologist
Maynard, J. Barry
Astronomy 362: Observational Astronomy University of Montana
Astronomy 362: Observational Astronomy University of Montana Fall 2010 T/Th 2:10 ┬Ł 3:30 pm CHCB 227://www.physics.umt.edu/~nate/astr362/ Course Description Observational astronomy relies heavily on application of advanced technology astronomy is dominated by the CCD and related pixel array detectors: digital devices with unprecedented
Vonessen, Nikolaus
ISO SPECTROSCOPIC OBSERVATIONS OF SHORTPERIOD COMETS \\Lambda
1 ISO SPECTROSCOPIC OBSERVATIONS OF SHORTŁPERIOD COMETS \\Lambda J. Crovisier 1 , T. Encrenaz 1 , E 4 , E. van Dishoeck 5 , R. Knacke 6 , T.Y. Brooke 7 1 Observatoire de Paris, Meudon, France 2 ISO are found in a shortŁperiod comet. The ISO observations of the JupiterŁfamily comet P/Hartley 2, presum
Demoulin, Pascal
for providing satellite observations. The final step in this process will be the publication of a National Plan; Homeland and National Security; Science, Technology, Engineering, and Math (STEM) Education; ScienceNATIONAL STRATEGY FOR CIVIL EARTH OBSERVATIONS Executive Office of the President National Science
Schrijver, Karel
Systems Engineering
Systems Engineering Systems Engineering is a holistic engineering discipline that provides systems analysis, systems integration, decision analysis, and systems science products...
Reply to comment by Finnigan on ``On micrometeorological observations of surface-air exchange over tall vegetation''
hills (Raupach et al., 1992) to illustrate how the concentration ®eld might respond to ¯ow conver- gence within the lowest portion of the 2D Agricultural and Forest Meteorology 97 (1999) 65±67 * Tel.: +1
Lee, Xuhui
1190 VOLUME 132M O N T H L Y W E A T H E R R E V I E W 2004 American Meteorological Society
orders of magnitude more observations, both at the surface and aloft. We find that the En- taset available that extends back before 1948 is derived from charts of sea level pressure hand
Observed Cosmological Redshifts Support Contracting Accelerating Universe
The main argument that Universe is currently expanding is observed redshift increase by distance. However, this conclusion may not be correct, because cosmological redshift depends only on the scaling factors, the change in the size of the universe during the time of light propagation and is not related to the speed of observer or speed of the object emitting the light. An observer in expanding universe will measure the same redshift as observer in contracting universe with the same scaling. This was not taken into account in analysing the SN Ia data related to the universe acceleration. Possibility that universe may contract, but that the observed light is cosmologically redshifted allows for completely different set of cosmological parameters $\\Omega_M, \\Omega_{\\Lambda}$, including the solution $\\Omega_M=1, \\Omega_{\\Lambda}=0$. The contracting and in the same time accelerating universe explains observed deceleration and acceleration in SN Ia data, but also gives significantly larger value for the age of the universe, $t_0 = 24$ Gyr. This allows to reconsider classical cosmological models with $\\Lambda =0$. The contracting stage also may explain the observed association of high redshifted quasars to low redshifted galaxies.
Branislav Vlahovic
Incompatibility between Self-Observing Consciousness and the Axioms of Quantum theory
Based on the standard axioms of quantum theory, we provide a counter-example which invalidates the full compatibility between consciousness and quantum theory. In particular, we present an example of a natural phenomenon in which an observer's the mental state can be fully described in mathematical terms analogous to the state vector that is being observed. This mathematical description of the observer's mental state enables us to examine consciousness within the standard axioms of quantum theory. The separation between the observing party and the physical system being observed, imposed by the axiom of quantum theory, poses a problem when the observer is observing his own mental state, i.e., self-observing consciousness.
Song, Daegene
Daegene Song
Multiscale dynamics of atmospheric and oceanic variability in the climate system
Filtering) for Numerical Weather Prediction models wereNumerical Weather Prediction (NWP) in meteorology, caused ocean models
Subramanian, Aneesh C.
PEP Classroom Observation Protocol Project # _______ District __________________________ School ________________________________________
PEP Classroom Observation Protocol Project # _______ District __________________________ School (mark all that apply) Demonstrate or confirm known concepts/procedures Demonstrate or confirm known concepts/procedures Explore ideas, test conjectures, look for patterns Explore ideas, test conjectures
Lee, Carl
INTEGRAL observations of HER X-1
First results of observations of the low mass X-ray binary Her X-1/HZ Her performed by the INTEGRAL satellite in July-August 2005 are presented. A significant part of one 35 day main-on state was covered. The cyclotron line in the X-ray spectrum is well observed and its position and shape, as well as its variability with time and phase of the 1.24 s pulsation are explored. X-ray pulse profiles for different energy bands are studied throughout the observation. The pulse period is found to vary on short time scales revealing a dynamical spin-up/spin-down behavior. Results of simultaneous optical observations of HZ Her are also discussed.
D. Klochkov; R. Staubert; S. Tsygankov; A. Lutovinov; K. P. Postnov; N. I. Shakura; S. A. Potanin; C. Ferrigno; I. Kreykenbohm; J. Wilms
Observations show that the underlying rotation curves at intermediate radii in spiral and low-surface-brightness galaxies are nearly universal. Further, in these same galaxies, the product of the central density and the core radius ({rho}{sub 0} r{sub 0}) is constant. An empirically motivated model for dark matter halos that incorporates these observational constraints is presented and shown to be in accord with the observations. A model fit to the observations of the galaxy cluster A611 shows that {rho}{sub 0} r{sub 0} for the dark matter halo in this more massive structure is larger by a factor of {approx}20 over that assumed for the galaxies. The model maintains the successful Navarro-Frenk-White form in the outer regions, although the well-defined differences in the inner regions suggest that modifications to the standard cold dark matter picture are required.
Hartwick, F. D. A. [Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 3P6 (Canada)
Observational and evolutionary studies of neutron star X-ray binaries
In this thesis, we present our observational and evolutionary studies of neutron stars in X-ray binary systems. A variety of topics are discussed, which are all related by a single scientific theme, namely, helping to set ...
Lin, Jinrong, Ph. D. Massachusetts Institute of Technology
Gamma-Ray Line Observations with RHESSI
The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) has been observing gamma-ray lines from the Sun and the Galaxy since its launch in February 2002. Here I summarize the status of RHESSI observations of solar lines (nuclear de-excitation, neutron capture, and positron annihilation), the lines of $^{26}$Al and $^{60}$Fe from the inner Galaxy, and the search for positron annihilation in novae.
David M. Smith
Infrasonic observations of the Northridge, California, earthquake
Infrasonic waves from the Northridge, California, earthquake of 17 January 1994 were observed at the St. George, Utah, infrasound array of the Los Alamos National Laboratory. The distance to the epicenter was 543 kilometers. The signal shows a complex character with many peaks and a long duration. An interpretation is given in terms of several modes of signal propagation and generation including a seismic-acoustic secondary source mechanism. A number of signals from aftershocks are also observed.
Mutschlecner, J.P.; Whitaker, R.W.
Observational Analysis of Cloud and Precipitation in Midlatitude Cyclones: Northern versus Southern Hemisphere Warm Fronts
Satellite Observations (CALIPSO), and Advanced Microwave Scanning Radiometer for Earth Observing System Extratropical cyclones produce the bulk of the cold- season precipitation in middle and high latitudes and are key contributors to the meridional transport of energy between the equator and the poles. Though
Video Observations Inside Channels of Erupting Geysers, Geyser Valley, A.Belousov1
Video Observations Inside Channels of Erupting Geysers, Geyser Valley, Russia A.Belousov1 , M on the internal plumbing of geyser systems. Here we present data based on video observations of interior conduit lowered a video camera (with thermal and water insulation) into the conduits of four erupting geysers
Belousov, Alexander
Magnetospheric line radiation event observed simultaneously on board Cluster 1, Cluster 2 and DEMETER spacecraft
be related to power line harmonic radiation (PLHR, an electromagnetic radiation from electric power systemsMagnetospheric line radiation event observed simultaneously on board Cluster 1, Cluster 2., O. SantolĒk, M. Parrot, and J. S. Pickett (2012), Magnetospheric line radiation event observed
Initial observations using the Emotiv Epoc Greg Siegle, 9/2014
Initial observations using the Emotiv Epoc Greg Siegle, 9/2014 We have experimented with the extent. Based on these data here are initial observations: Strengths: There are increasing numbers a signal that the Biosemi did. Our data suggest the Emotiv system yielded reliable signals of interest
Siegle, Greg J.
Power line harmonic radiation observed by satellite: Properties and propagation through the ionosphere
Power line harmonic radiation observed by satellite: Properties and propagation through of power line harmonic radiation events observed by the low-altitude DEMETER spacecraft. Altogether, 88 with the largest intensities often occur off exact multiples of base power system frequency. This can be explained
VOL. 55, NO. 22 15 NOVEMBER 1998J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S 1998 American Meteorological Society 3313
in the phase functions. The errors are reduced to 2% for ice when the assessment is constrained to only those American Meteorological Society 3313 Parameterizations of Reflectance and Effective Emittance for Satellite hexagonal ice crystals with effective diameters varying from 6 to 135 m. Cloud reflectance lookup tables
Takano, Yoshihide
VOL. 57, NO. 20 15 OCTOBER 2000J O U R N A L O F T H E A T M O S P H E R I C S C I E N C E S 2000 American Meteorological Society 3353
American Meteorological Society 3353 Dynamic and Thermodynamic Regulation of Ocean Warming* TIM LI of the annual-mean solar radiation, this model is capable of simulating a realistic annual mean climate.5 C. Long-term records indicate that maximum SST in the warm pool is limited to below 31 C. A central
We present the results of 16 Swift-triggered Gamma-ray burst (GRB) follow-up observations taken with the Very Energetic Radiation Imaging Telescope Array System (VERITAS) telescope array from 2007 January to 2009 June. The median energy threshold and response time of these observations were 260 GeV and 320 s, respectively. Observations had an average duration of 90 minutes. Each burst is analyzed independently in two modes: over the whole duration of the observations and again over a shorter timescale determined by the maximum VERITAS sensitivity to a burst with a t{sup -1.5} time profile. This temporal model is characteristic of GRB afterglows with high-energy, long-lived emission that have been detected by the Large Area Telescope on board the Fermi satellite. No significant very high energy (VHE) gamma-ray emission was detected and upper limits above the VERITAS threshold energy are calculated. The VERITAS upper limits are corrected for gamma-ray extinction by the extragalactic background light and interpreted in the context of the keV emission detected by Swift. For some bursts the VHE emission must have less power than the keV emission, placing constraints on inverse Compton models of VHE emission.
Acciari, V. A.; Benbow, W. [Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645 (United States); Aliu, E.; Errando, M. [Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027 (United States); Arlen, T. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States); Aune, T. [Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 (United States); Beilicke, M.; Buckley, J. H.; Bugaev, V. [Department of Physics, Washington University, St. Louis, MO 63130 (United States); Bradbury, S. M. [School of Physics and Astronomy, University of Leeds, Leeds, LS2 9JT (United Kingdom); Byrum, K. [Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439 (United States); Cannon, A.; Collins-Hughes, E. [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Cesarini, A.; Connolly, M. P. [School of Physics, National University of Ireland Galway, University Road, Galway (Ireland); Christiansen, J. L. [Physics Department, California Polytechnic State University, San Luis Obispo, CA 94307 (United States); Ciupik, L. [Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605 (United States); Cui, W. [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States); Duke, C. [Department of Physics, Grinnell College, Grinnell, IA 50112-1690 (United States); Falcone, A. [Department of Astronomy and Astrophysics, 525 Davey Lab, Pennsylvania State University, University Park, PA 16802 (United States); and others
Braking system
A balanced braking system comprising a plurality of braking assemblies located about a member to be braked. Each of the braking assemblies consists of a spring biased piston of a first material fitted into a body of a different material which has a greater contraction upon cooling than the piston material. The piston is provided with a recessed head portion over which is positioned a diaphragm and forming a space therebetween to which is connected a pressurized fluid supply. The diaphragm is controlled by the fluid in the space to contact or withdraw from the member to be braked. A cooling means causes the body within which the piston is fitted to contract more than the piston, producing a tight shrink fit therebetween. The braking system is particularly applicable for selectively braking an arbor of an electron microscope which immobilizes, for example, a vertically adjustable low temperature specimen holder during observation. The system provides balanced braking forces which can be easily removed and re-established with minimal disturbance to arbor location.
Norgren, D.U.
Observation of Dirac Monopoles in a Synthetic Magnetic Field
Magnetic monopoles --- particles that behave as isolated north or south magnetic poles --- have been the subject of speculation since the first detailed observations of magnetism several hundred years ago. Numerous theoretical investigations and hitherto unsuccessful experimental searches have followed Dirac's 1931 development of a theory of monopoles consistent with both quantum mechanics and the gauge invariance of the electromagnetic field. The existence of even a single Dirac magnetic monopole would have far-reaching physical consequences, most famously explaining the quantization of electric charge. Although analogues of magnetic monopoles have been found in exotic spin-ices and other systems, there has been no direct experimental observation of Dirac monopoles within a medium described by a quantum field, such as superfluid helium-3. Here we demonstrate the controlled creation of Dirac monopoles in the synthetic magnetic field produced by a spinor Bose-Einstein condensate. Monopoles are identified, in b...
Ray, M W; Kandel, S; M÷tt÷nen, M; Hall, D S
Hadronic sizes and observables in high-energy scattering
The functional dependence of the high-energy observables of total cross section and slope parameter on the sizes of the colliding hadrons predicted by the model of the stochastic vacuum and the corresponding relations used in the geometric model of Povh and H\\"ufner are confronted with the experimental data. The existence of a universal term in the expression for the slope, due purely to vacuum effects, independent of the energy and of the particular hadronic system, is investigated. Accounting for the two independent correlation functions of the QCD vacuum, we improve the simple and consistent description given by the model of the stochastic vacuum to the high-energy pp and pbar-p data, with a new determination of parameters of non-perturbative QCD. The increase of the hadronic radii with the energy accounts for the energy dependence of the observables.
Erasmo Ferreira; Flßvio Pereira
Observation of non-Markovian micro-mechanical Brownian motion
At the heart of understanding the emergence of a classical world from quantum theory is the insight that all macroscopic quantum systems are to some extent coupled to an environment and hence are open systems. The associated loss of quantum coherence, i.e., decoherence, is also detrimental for quantum information processing applications. In contrast, properly engineered quantum noise can counteract decoherence and can even be used in robust quantum state generation. To exploit the detailed dynamics of a quantum system it is therefore crucial to obtain both good knowledge and control over its environment. Here we present a method to reconstruct the relevant properties of the environment, that is, its spectral density, of the center of mass motion of a micro-mechanical oscillator. We observe a clear signature of non-Markovian Brownian motion, which is in contrast to the current paradigm to treat the thermal environment of mechanical quantum resonators as fully Markovian. The presented method, inspired by methods of system identification, can easily be transferred to other harmonic systems that are embedded in a complex environment, for example electronic or nuclear spin states in a solid state matrix. Our results also open up a route for mechanical quantum state engineering via coupling to unorthodox reservoirs.
S. Groeblacher; A. Trubarov; N. Prigge; M. Aspelmeyer; J. Eisert
900 VOLUME 14J O U R N A L O F C L I M A T E 2001 American Meteorological Society
station observational datasets, and for the ecological component by comparing with advanced very high-resolution radiometer remote-sensing Normalized Difference Vegetation Index datasets. The results show that seasonal land surface water and energy exchange. The coupled model captures the key aspects of weekly, seasonal
Pielke, Roger A.
15 APRIL 2003 1141G U I L Y A R D I E T A L . 2003 American Meteorological Society
N, 120 ┬Ł170 E]. The associated heat content changes appear to be dominated by a local Ekman pumping GUALDI AND ANTONIO NAVARRA INGV, Bologna, Italy (Manuscript received 8 October 2001, in final form 22 observed. Heat content of the west Pacific is confirmed as a precursor to ENSO phase change
Guilyardi, Eric
1 SEPTEMBER 2001 2559H A R T M A N N A N D M A L O N E Y 2001 American Meteorological Society
) reanalysis data to show that barotropic energy conversions mod- ulated by MJO mean flow variations contribute, since observed statistics are probably dominated by eddies that receive substantial energy from latent to investigate the relationship between wind variations associated with the Madden┬ŁJulian oscillation (MJO
Hartmann, Dennis
The High-resolution Coronal Imager (Hi-C) has provided Fe XII 193A images of the upper transition region moss at an unprecedented spatial ({approx}0.''3-0.''4) and temporal (5.5 s) resolution. The Hi-C observations show in some moss regions variability on timescales down to {approx}15 s, significantly shorter than the minute-scale variability typically found in previous observations of moss, therefore challenging the conclusion of moss being heated in a mostly steady manner. These rapid variability moss regions are located at the footpoints of bright hot coronal loops observed by the Solar Dynamics Observatory/Atmospheric Imaging Assembly in the 94 A channel, and by the Hinode/X-Ray Telescope. The configuration of these loops is highly dynamic, and suggestive of slipping reconnection. We interpret these events as signatures of heating events associated with reconnection occurring in the overlying hot coronal loops, i.e., coronal nanoflares. We estimate the order of magnitude of the energy in these events to be of at least a few 10{sup 23} erg, also supporting the nanoflare scenario. These Hi-C observations suggest that future observations at comparable high spatial and temporal resolution, with more extensive temperature coverage, are required to determine the exact characteristics of the heating mechanism(s).
Testa, Paola; DeLuca, Ed; Golub, Leon; Korreck, Kelly; Weber, Mark [Smithsonian Astrophysical Observatory, 60 Garden street, MS 58, Cambridge, MA 02138 (United States); De Pontieu, Bart; Martinez-Sykora, Juan; Title, Alan [Lockheed Martin Solar and Astrophysics Lab, Org. A021S, Bldg. 252, 3251 Hanover Street, Palo Alto, CA 94304 (United States); Hansteen, Viggo [Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, N-0315 Oslo (Norway); Cirtain, Jonathan; Winebarger, Amy; Kobayashi, Ken [NASA Marshall Space Flight Center, ZP 13, Huntsville, AL 35812 (United States); Kuzin, Sergey [P. N. Lebedev Physical institute of the Russian Academy of Sciences, Leninskii prospekt, 53, 119991 Moscow (Russian Federation); Walsh, Robert [University of Central Lancashire, Lancashire, Preston PR1 2HE (United Kingdom); DeForest, Craig, E-mail: email@example.com [Southwest Research Institute, 1050 Walnut Street, Suite 300, Boulder, CO 80302 (United States)
Predictions for Observing Protostellar Outflows with ALMA
Protostellar outflows provide a means to probe the accretion process of forming stars and their ability to inject energy into their surroundings. However, conclusions based on outflow observations depend upon the degree of accuracy with which their properties can be estimated. We examine the quality of Atacama Large Millimeter/submillimeter Array (ALMA) observations of protostellar outflows by producing synthetic $^{12}$CO(1-0) and $^{13}$CO(1-0) observations of numerical simulations. We use various ALMA configurations, observational parameters, and outflow inclinations to assess how accurately different assumptions and setups can recover underlying properties. We find that more compact arrays and longer observing times can improve the mass and momentum recovery by a factor of two. During the first $\\sim$0.3 Myr of evolution, $^{12}$CO(1-0) is optically thick, even for velocities $|v|\\ge 1$ km s$^{-1}$, and outflow mass is severely underestimated without an optical depth correction. Likewise, $^{13}$CO(1-0) i...
Bradshaw, C; Arce, H G
Neutral molecular cluster formation of sulfuric aciddimethylamine observed in real time under
, Finland; c Helsinki Institute of Physics, University of Helsinki, 00014 Helsinki, Finland; d European, University of Eastern Finland, 70211 Kuopio, Finland; m Finnish Meteorological Institute, 00101 Helsinki, Finland; n Airmodus Ltd., 00560 Helsinki, Finland; o Solar and Cosmic Ray Research Laboratory, Lebedev
Validation of satellite observed thermal emission with in-situ measurements over an urban surface
for analysis of the urban surface heat island (USHI) during the BUBBLE Experiment. Primarily, this Remote Gergely Rigo a,, Eberhard Parlow a , David Oesch b a Institute of Meteorology, Climatology and Remote Sensing, University of Basel, Switzerland b Remote Sensing Research Group, University of Berne
Wunderle, Stefan
With harmful ozone concentrations tied to meteorological conditions, EPA investigates the U.S. air quality implications of a changing climate.
%, vehicle miles traveled increased 103% and energy consumption increased 30% (U.S. EPA 2008). Air pollution- port emphasized that the U.S. air quality management system must be "flexible and vigilant" to ensure
Observations of the Askaryan Effect in Ice
We report on the first observations of the Askaryan effect in ice: coherent impulsive radio Cherenkov radiation from the charge asymmetry in an electromagnetic (EM) shower. Such radiation has been observed in silica sand and rock salt, but this is the first direct observation from an EM shower in ice. These measurements are important since the majority of experiments to date that rely on the effect for ultra-high energy neutrino detection are being performed using ice as the target medium. As part of the complete validation process for the Antarctic Impulsive Transient Antenna (ANITA) experiment, we performed an experiment at the Stanford Linear Accelerator Center (SLAC) in June 2006 using a 7.5 metric ton ice target, yielding results fully consistent with theoretical expectations.
ANITA collaboration; P. W. Gorham; S. W. Barwick; J. J. Beatty; D. Z. Besson; W. R. Binns; C. Chen; P. Chen; J. M. Clem; A. Connolly; P. F. Dowkontt; M. A. DuVernois; R. C. Field; D. Goldstein; A. Goodhue; C. Hast; C. L. Hebert; S. Hoover; M. H. Israel; J. Kowalski; J. G. Learned; K. M. Liewer; J. T. Link; E. Lusczek; S. Matsuno; B. Mercurio; C. Miki; P. Miocinovic; J. Nam; C. J. Naudet; J. Ng; R. Nichol; K. Palladino; K. Reil; A. Romero-Wolf; M. Rosen; D. Saltzberg; D. Seckel; G. S. Varner; D. Walz; F. Wu
Barwick, S W; Besson, D Z; Binns, W R; Chen, P; Clem, J M; Connolly, A; Dowkontt, P F; Duvernois, M A; Field, R C; Goldstein, D; Goodhue, A; Gorham, P W; Hast, C; Hebert, C L; Hoover, S; Israel, M H; Kowalski, J; Learned, J G; Liewer, K M; Link, J T; Lusczek, E; Matsuno, S; Mercurio, B; Miki, C; Miocinovic, P; Nam, J; Naudet, C J; Ng, J; Nichol, R; Palladino, K J; Reil, K; Romero-Wolf, A; Rosen, M; Saltzberg, D; Secke, D; Varner, G S; Walz, D; Wu, F
Gorham, P.W.
Black Holes: from Speculations to Observations
This paper provides a brief review of the history of our understanding and knowledge of black holes. Starting with early speculations on ``dark stars'' I discuss the Schwarzschild "black hole" solution to Einstein's field equations and the development of its interpretation from "physically meaningless" to describing the perhaps most exotic and yet "most perfect" macroscopic object in the universe. I describe different astrophysical black hole populations and discuss some of their observational evidence. Finally I close by speculating about future observations of black holes with the new generation of gravitational wave detectors.
Thomas W. Baumgarte
Observation of d-Orbital Aromaticity. | EMSL
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the ContributionsArmsSpeedingSpeedingUnder Well-ControlledObservation of aObservation
Direct observation of temperature dependent magnetic domain structure of the multiferroic La{sub 0.66}Sr{sub 0.34}MnO{sub 3}/BiFeO{sub 3} bilayer system by x-ray linear dichroism- and x-ray magnetic circular dichroism-photoemission electron microscopy
Low-thickness La{sub 0.66}Sr{sub 0.34}MnO{sub 3} (LSMO)/BiFeO{sub 3} (BFO) thin film samples deposited on SrTiO{sub 3} were imaged by high resolution x-ray microscopy at different temperatures. The ultra-thin thickness of the top layer allows to image both the ferromagnetic domain structure of LSMO and the multiferroic domain structure of the buried BFO layer, opening a path to a direct observation of coupling at the interface on a microscopic level. By comparing the domain size and structure of the BFO and LSMO, we observed that, in contrast to LSMO single layers, LSMO/BFO multilayers show a strong temperature dependence of the ferromagnetic domain structure of the LSMO. Particularly, at 40?K, a similar domain size for BFO and LSMO is observed. This indicates a persistence of exchange coupling on the microscopic scale at a temperature, where the exchange bias as determined by magnetometer measurements is vanishing.
Mix, C.; Finizio, S.; Jakob, G.; Klõui, M. [Institut f³r Physik, Johannes Gutenberg Universitõt Mainz, Staudingerweg 7, D-55128 Mainz (Germany); Buzzi, M.; Nolting, F. [Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland); Kronast, F. [Helmholtz-Zentrum-Berlin f³r Materialien und Energie GmbH, Albert-Einstein Stra▀e 15, D-12489 Berlin (Germany)
Simultaneous state and unknown inputs estimation with PI and PMI observers for Takagi Sugeno model with unmeasurable premise
Simultaneous state and unknown inputs estimation with PI and PMI observers for Takagi Sugeno model-- In this paper, a proportional integral (PI) and a proportional multiple integral observer (PMI) are proposed and PMI observers developed for linear systems. The state estimation error is written as a perturbed
Observations of nonmethane hydrocarbons and oxygenated volatile organic compounds at a rural site in the southeastern United States
Measurements of an extensive range of nonmethane hydrocarbons (NMHCs) including alkanes, alkenes, and aromatics, and oxygenated volatile organic compounds (OVOCs) including alcohols, ketones, and aldehydes were conducted for several weeks during the summer of 1995 as part of the Southern Oxidants Study (SOS) at a rural experimental site (Youth, Inc.) 32 km southeast of Nashville, Tennessee, in the southeastern United States. These measurements were conducted to (1) determine the absolute magnitude and variability of oxygenated compounds found in a contemporary rural region; (2) assess the importance of the measured ambient levels of OVOCs on a photochemical reactivity basis relative to the more commonly determined NMHCs; and (3) to evaluate our ability to accurately measure oxygenates by the current techniques employed under a field study scenario. Several other physical (temperature, insolation, etc.), meteorological (wind velocity, wind direction, atmospheric structure, and boundary layer height), and chemical (criterion pollutants, NO{sub x}, SO{sub 2}, CO, O{sub 3}, etc.) parameters were measured concurrently with the NMHC and OVOC measurements. During the study period, OVOCs were consistently the dominant compounds present, and methanol and acetone had the highest mixing ratios. Although OVOCs made up the majority of the volatile organic compound component on a mass basis, a substantial sink for OH was isoprene and its immediate oxidation products, methacrolein and methyl vinyl ketone. In combination with CO and formaldehyde, these compounds comprised about 85{percent} of the observed OH reactivity at the site. Acetaldehyde and methanol were responsible for an additional 10{percent}, with the NMHCs and remaining OVOCs making up the final 5{percent} of the measured OH reactivity at the site. These observed patterns reinforce recent studies which find OVOCs to be an important component of the rural troposphere. {copyright} 1998 American Geophysical Union
Riemer, Daniel; Pos, Willer; Milne, Peter; Farmer, Charlesk; Zika, Rod [Division of Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida (United States)] [Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, Colorado (United States)] [Atmospheric Sciences, Tennessee Valley Authority, Muscle Shoals, Alabama (United States)] Apel, Eric [Atmospheric Chemistry Group, Mantech Environmental Research Triangle Park, North Carolina (United States)] Olszyna, Ken [National Environmental Research Laboratory, U.S. EPA. Research Triangle Park, North Carolina (United States)] Kliendienst, Tad [Department of Chemistry, Western Michigan University, Kalamazoo, Michigan (United States)] Lonneman, William [Departments of Chemistry, and Earth and Atmospheric Science, Purdue University, West Lafayette, Indiana (United States); Shepson, Paul; Starn, Tim
Satellite Observations towards the Agriculture applications
map by AVNIR-2 20m spatial resolution 1 , Bare surface 2 Water 3 Urban 4 Paddy 5 Crop 6 Atmospheric Remote Sensing External Ground Truth (Country Reports/News Services) Ag Industry Trade Industry water stress index (2010/07) ┬Ę Low NDVI Land Environment Information observed by MODIS, etc. 2010
Direct Observation of Born-Oppenheimer Approximation
Direct Observation of Born-Oppenheimer Approximation Breakdown in Carbon Nanotubes Adam W of the theoretically predicted breakdown of the Born-Oppenheimer approximation in individual single-walled carbon nanotubes. The Born-Oppenheimer (BO) or adiabatic approximation is widely used to simplify the very complex
Cronin, Steve
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