摘要
根据我国近海热带气旋发生、发展的气候特点,规定12小时热带气旋中心附近最大风速增值≥10m/s为迅速加强.通过1949~1990年近海发生迅速加强的84个热带气旋个例分析,阐述了迅速加强时段的时间分布、地区分布及迅速加强前后气象要素变化的气侯特征.
The occurrence of rapid intensification (RI) of tropical cyclones(>10tn/s in 12 h)in the offshore of China is examined to determine the geographic and seasonal variation of these events. Eighty-four cases of rapid growth process during the period 1949 ̄1990 were selected to study climatological characteristics. The statistical results reveal that the majority(82%) of RI occurs in July through October. Most of RI are associated with sea surface temperature≥28℃. The changes of wind speed and central pressure of RI as well as the rate of intensifying are also estimated.
出处
《应用气象学报》
CSCD
北大核心
1996年第1期28-35,共8页
Journal of Applied Meteorological Science
基金
八五攻关课题
关键词
热带气旋
迅速加强
气候特征
风速
Tropical cyclones
Rapid intensification
Climatic characteristics