SOME PROBLEMS IN THE THEORY OF THE FORMATION OF CLOUDS AND PRECIPITATION
AMERICAN METEOROLOGICAL SOCIETY BOSTON MA
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Research on clouds and precipitation has undergone considerable development in the Soviet Union during the last forty years. In the pre-war years, a great deal of data was collected from the network of weather stations on clouds and precipitation synoptic methods of forecasting these phenomena were developed a substantial amount of laboratory research was carried out on thunderstorm electricity and the mechanism of precipitation formation and research was begun on clouds in the vicinity of mountains. Immediately after the war, research was renewed in the Soviet Union on the active modification of clouds and fog. Physical methods have been developed for forecasting cloudiness and precipitation, based on the solution to dynamic atmosphere equations and energy relationships. In recent years, more and more effort has been put into cloud research and into the development of methods of active modification.