CLASSIFICATION OF ATMOSPHERIC PROCESSES OVER THE FAR EAST SEAS

S. Yu. Glebova

Classification of atmospheric processes over the Far East seas is performed by means of the analysis of ten-day averaged maps of surface pressure for 1980—2000. Six types are identified for the Sea of Japan and the Bering Sea and seven types for the Okhotsk Sea. Comparative assessment is made of the occurrence of types of atmospheric processes responsible for the formation of similar and different weather conditions over the seas. It is noted that as a whole their occurrence is well correlated. There is a relation between different processes not only over neighboring basins, but also over the widely spaced Sea of Japan and the Bering Sea. Processes of different seasons are also related to each other. Cold and warm spells in individual seasons are found to be related to periodic changes in the frequency of different types of atmospheric processes.