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中文摘要: 运用北半球500hPa格点资料,分析了3月倒春寒天气发生的同期、前期500hPa环流特征。云南春季倒春寒天气的发生与同期500hPa上乌拉尔山脊的建立、新西伯利亚附近横槽转竖有关,孟加拉湾南支槽的影响使倒春寒天气更易发生。
中文关键词: 倒春寒天气,环流特征,冷害
Abstract:Using 500hPa grid data over the Northern Hemisphere,the circulation features at the corresponding and earlier stages of the late spring chilling in March over Yunnan are analysed.The results shows that the spring chilling over Yunnan is related with the Ural high pressure ridge and the New Siberian transversal trough changing vertically and at the same time,the southern branch trough over the Bay of Bengal makes Yunnan late spring clilling easily.
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基金项目:国家“九五”重中之重科技攻关项目!云南专题“云南短期气候预测系统的研究(96-908-05-08)”资助
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引用文本:
郑建萌,段旭,2001.云南春季强低温的诊断分析[J].气象,27(5):35-37.
,2001.Severe Spring Chilling Diagnostic Analysis in Yunnan[J].Meteor Mon,27(5):35-37.
郑建萌,段旭,2001.云南春季强低温的诊断分析[J].气象,27(5):35-37.
,2001.Severe Spring Chilling Diagnostic Analysis in Yunnan[J].Meteor Mon,27(5):35-37.