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气象:2006,32(5):80-86
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西安市两次突发暴雨成因分析
(陕西省气象台,西安 710015)
Analysis of Causes of Two Abrupt Rainstorm in Xi’an, Shaanxi Province
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投稿时间:2005-01-18    修订日期:2006-01-12
中文摘要: 利用常规探空资料、地面加密观测资料以及卫星云图等,对发生在西安市的两次突发暴雨进行了诊断分析。结果表明:暴雨是台风北侧低空东风急流与中纬度西风带低值系统共同作用的结果;台风低压北侧的气旋性环流在低空形成的偏东风急流带是此类暴雨的主要水汽通道和能量通道;暖区内中β尺度对流系统(MβCS)的活跃直接导致了突发暴雨的生成和维持。
Abstract:By using of the routine sounding, surface observation data and analysis of satellite image, two abrupt rainstorm in Xi’an are analyzed. It shows that the cause of rainstorm is the effect of the easterlies wind jet along the north side of typhoon and the low-system of the westerly belt in the middle latitude, the main vapor and energy pathway is the jet of the easterly belt along the north side of typhoon low- pressure circulation, the meso-β scale convective system (MβCS) bring on development and maintain of abrupt rainstorm.
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基金项目:中国科技部社会公益项目(2001DIB200095)资助
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引用文本:
张弘,梁生俊,侯建忠,2006.西安市两次突发暴雨成因分析[J].气象,32(5):80-86.
,2006.Analysis of Causes of Two Abrupt Rainstorm in Xi’an, Shaanxi Province[J].Meteor Mon,32(5):80-86.