1978. His successors were Tom Wigley (1978–1993), Trevor Davies (1993–1998), Jean Palutikof and Phil Jones (jointly 1998–2004), Phil Jones (2004–2016), and Tim Osborn (from January 2017); Peter Liss was acting director during investigations between December 2009 and July 2010. In 1984, the unit moved to a new cylindrical building designed by Rick Mather. In 2006, this was named the Hubert Lamb Building in honour of the first director. Activities At the time of its establishment the CRU set out four key aims, which still remain valid: To establish firmer knowledge of the history of climate in the recent and distant past. To monitor and report on current climatic developments on a global scale. To identify the processes (natural and man-made) at work in climatic fluctuations and the characteristic timescales of their evolution. To investigate the possibilities of making advisory statements about future trends of weather and climate from a season to many years ahead, based on acceptable scientific methods and in a form likely to be useful for long-term planning purposes. CRU produces a range of climate datasets, covering temperature, precipitation, pressure and circulation, both global and regional. One of the CRU's most significant products is the CRUTEM global dataset of land near-surface temperature anomalies on a 5° by 5° grid-box basis, which is compiled in conjunction with the Hadley Centre for Climate Prediction and Research and its sea-surface temperature dataset to produce the HadCRUT temperature record. First compiled in the early 1980s, the record documents global temperature fluctuations since the 1850s. The CRU compiles the land component of the record and the Hadley Centre provides the marine component. The merged record is used by the Intergovernmental Panel on Climate Change in all its publications. Other products include the CRU TS high resolution gridded land surface dataset of multiple factors including precipitation, vapour pressure and cloud cover as well as temperatures. CRU is also involved in a study of Eurasian climate over the last 10,000 years based upon tree ring data and a study of European climate in the last 200 years based upon temperature records. It is a participant in MEDALUS – the Mediterranean Desertification and Land Use project. The custodians of the raw data are the National Meteorological Organisations that originated the data; CRU retains most but not all of the raw data, which continues to be held by the originating services. It published a quarterly journal, Climate