Proceedings of SPIE - the International Society for Optical Engineering
An atmospheric mesoscale numerical model has been developed and applied to the marine atmospheric boundary layer (MABL) in the vicinity of sharp sea-surface temperature (SST) gradients. The Gulf Stream offshore ofEast Central Florida near Cape Canaveral is the region of interest. The model equations which govern atmospheric behavior are based on the basic conservation laws ofmass, momentum, and energy. A "primitive" equation formulation is used to produce preliminary predictions ofhorizontal velocity, potential temperature, and water vapor. The hydrostatic approximation is applied to the vertical momentum conservation equation and the anelastic form ofthe continuity equation is used to approximate mass conservation. Surface fluxes ofmomentum, heat, and moisture are estimated using high-resolution SST data obtained in nearreal time from the AVHRR infrared instrument. Interaction ofthe boundary layer flow with the nearby Central Florida peninsula is simulated by inducing a diurnal seabreeze circulation across the coastline. It is found through a series of simulations that the distribution of sea-surface temperatures influences the boundary layer flow field -especially over the region ofthe Gulf Stream front and the low level convergence field, which may be an important factor for initiating convective precipitation over the land-water margin and Gulf Stream. The importance ofthe air-sea or air-land interfaces are thus fully recognized as being crucial to parameterize via remote sensing data in order to proceed with further model developments ofthe newly developed sea-breeze model. Further examination ofmethods for estimating surface temperatures of the water and land as well as inclusion of surface gravity wave forcing due to the diurnal seabreeze over the complex landwater margin in the Indian River Lagoon will need to be included in order to utilize the model for future application.
Bostater, Charles R.; Gimond, Manuel; Uhlhorn, Erik; and McNally, Ted, "Numerical Simulation Of The Marine Atmospheric Boundary Layer Flow Over The Cape Canaveral Region And Gulf Stream Using AVHRR SST – An Atmospheric Seabreeze Model" (2000). Ocean Engineering and Marine Sciences Faculty Publications. 7.
SPIE (International Society for Optical Engineering) - Mfano wa idadi ya mesoscale ya anga umebuniwa na kutumika kwa safu ya mipaka ya anga ya bahari (MABL) karibu na gradients kali ya joto la uso wa bahari (SST). Mtiririko wa Ghuba pwani ya Mashariki ya Florida karibu na Cape Canaveral ni mkoa wa maslahi. Mifano ya equations ambayo kudhibiti tabia ya angahewa ni msingi juu ya sheria za msingi za uhifadhi wa wingi, kasi, na nishati. "Primitive" equation utungaji ni kutumika kuzalisha utabiri wa awali wa kasi ya usawa, joto uwezekano, na mvuke wa maji. Hydrostatic approximation ni kutumika kwa wima momentum uhifadhi equation na anelastic fomu ya mwendelezo equation ni kutumika kwa approximate wingi uhifadhi. Mtiririko wa mwendo, joto, na unyevu wa uso unakadiriwa kwa kutumia data ya SST ya azimio la juu iliyopatikana katika wakati wa karibu kutoka kwa chombo cha infrared cha AVHRR. Maingiliano ya mtiririko wa tabaka la mpaka na peninsula ya karibu ya Florida ya Kati huigwa kwa kusababisha mzunguko wa hewa ya bahari ya mchana kwenye pwani. Kwa mfano, katika hali ya hewa ya bahari, joto la bahari linaathiri uwanja wa mtiririko wa tabaka la mpaka, hasa katika eneo la mbele ya Mtiririko wa Ghuba na uwanja wa chini wa mtiririko wa ghuba, ambayo inaweza kuwa sababu muhimu ya kuanza mvua ya mvua juu ya makali ya maji ya ardhi na Mtiririko wa Ghuba. Kwa hiyo, umuhimu wa hewa-bahari au hewa-aridhiano ya ardhi ni hivyo kikamilifu kutambuliwa kama kuwa muhimu kwa parameterize kupitia data remote sensing ili kuendelea na maendeleo zaidi ya mfano wa mpya maendeleo bahari-hewa mfano. Utafiti zaidi wa mbinu za kukadiria joto la uso wa maji na ardhi, pamoja na kujumuisha nguvu ya mawimbi ya mvuto ya uso kutokana na upepo wa bahari wa mchana juu ya ukingo tata wa maji ya ardhi katika Indian River Lagoon, itahitajika kujumuishwa ili kutumia mfano kwa matumizi ya baadaye. "Bostater, Charles R. Gimond, Manuel, Uhlhorn, Erik, na McNally, Ted, ""Numerical Simulation Of The Marine Atmospheric Boundary Layer Flow Over The Cape Canaveral Region And Gulf Stream Using AVHRR SST: An Atmospheric Seabreeze Model"" (Uhuru wa Nambari ya Mzunguko wa Bahari juu ya Mkoa wa Cape Canaveral na Mtiririko wa Ghuba Kutumia AVHRR) " Uhandisi wa Bahari na Sayansi za Bahari Faculty Publications. 7. Uwe na mtazamo gani?