Statistic Characteristics of Explosive Cyclones over Asia Land and Its Coast

Using the synoptic charts from 1965 to 1999,the explosive cyclones over Asia land and its coast are studied,some statistic characteristics,such as its spatial and temporal distribution, intensity changes,appearance time and so on,are obtained. In these years, there were 136 explosive cyclones,average 3.9 cyclones a year,but 11 cyclones in 1987. Most of them occurred in the cold season(Oct.-Mar.), The cyclone intensity which occurred over Asia and its coastal area were weaker than it occurred over ocean. Most of cyclones developed more strongly in night time. These results would have some significant role to investigate developmental mechanism of explo -sive cyclone.

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