Georgii V. Gruza was born in 19 August 1931 in Tashkent, USSR (now Uzbekistan). In 1949 he entered and in 1954 he graduated from the Tashkent State University, Physics & Mathematics Faculty. Post graduate studies he passed from 1954 to 1957. Next Education steps: 1961 - PhD, TSU & Uzbek Academy of Science, 1968 - Doctor of Science, Geophysics, 1976 - Full Professor of Meteorology. His working positions were: 1957-1959 - Scientist-member of the Soviet Antarctic Expedition (Mirny), 1959-1970 - Head of Numerical Weather Forecast Dept., Central Asian Research Hydrometeorological Institute (Tashkent) 1970-1975 - Head of Data Processing and Methods Developing Dept., at the Research Institute of Hydrometeorological Information - World Data Center (RIHI-WDC), Obninsk, Kaluga Region), 1975-1982 - Deputy Director (Science Branch) of RIHI-WDC, 1983 up to present - Head of Climate Monitoring and Probabilistic Forecasting Dept. in the Institute of Global Climate and Ecology, Moscow. Areas of his research activities: investigations of the global atmospheric circulation, development of statistical methods for medium and long-range weather forecasting, analysis, detection and forecast of climate change and computer processing of large hydrometeorological data sets. He was the author and co-authors of numerous scientific papers and reports, which he presented at international and national scientific meetings during his scientific career. During several periods he served as an expert, rapporteur or a member of various international boards and meetings, for example, he was a member of WMO Working Group on Climate Change Detection and chair of RA-V1 (Europe) Working Group on Climate-Related Matters, also he was one of lead authors of the Second and the Third IPCC Assessment Reports. Among his awards: - Diploma of senior researcher in geophysics (1966), Multanovskiy Award (highest for forecast investigation in the Hydrometeorological Service of Russia) (1976), title of Honoured Meteorologist of Russian Federation (1999).