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Diagnostic and Mesoscale Analysis on Heavy Rainfall in Sichuan Basin
Author(s): 
Pages: 508-516
Year: Issue:  5
Journal: Journal of Chengdu University Of Information Technology

Abstract: 为了探索四川盆地暴雨天气发生发展的机制,利用云图和美国环境预报中心的全球再分析资料,针对2010年8月18 - 19日出现的暴雨过程进行环流形势、物理量场及中尺度特征分析,结果表明:暴雨过程中不断有低压槽东移,西太平洋副高西伸至盆地东部,暖湿气流通过低层绕流等方式进入盆地;在低层辐合高层辐散和热力不稳定的条件下,随着干冷空气入侵,对流运动异常强烈,促使强降水发生,湿位涡等值线密集带对暴雨落区预报有...
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