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中文摘要: 通过对1980~1991年在云南出现的46次暴雨过程的主要影响系统进行分型,找出造成云南暴雨的主要影响系统,利用美国国家环境预测中心(NECP)再分析资料对暴雨出现次数最多的冷锋切变型的11次全省范围大暴雨过程进行合成分析,揭示在冷锋切变环流形势下云南大暴雨发生前后中低层环流、湿度场、水汽输送的演变特征及其与大暴雨发生之间的关系;找出它们的共同特征提取造成云南暴雨的强信号,以期对今后的暴雨预报提供依据。
中文关键词: 大暴雨,冷锋切变,水汽输送
Abstract:Based on the heavy rainfall in Yunnan province and the reanalysis data(1980-1991)of NCEP/NCAR, the mainly systems and the circulation characteristics at the middle and lower levels coupling the heavy rains are discussed. The results show that there is a closer relationship between the evolution of circulation, humidity field and vapor transfer and the heavy rains in Yunnan.
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基金项目:云南省应用基金 (2000D91M)及云南省“十五”攻关项目 (2001NG43)资助
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引用文本:
何华,孙绩华,2003.云南冷锋切变大暴雨过程的环流及水汽输送特征[J].气象,29(4):48-52.
,2003.Circulation and Moisture Flux Characteristics at Middle andLower Levels during Heavy Rains in Yunnan[J].Meteor Mon,29(4):48-52.
何华,孙绩华,2003.云南冷锋切变大暴雨过程的环流及水汽输送特征[J].气象,29(4):48-52.
,2003.Circulation and Moisture Flux Characteristics at Middle andLower Levels during Heavy Rains in Yunnan[J].Meteor Mon,29(4):48-52.