一次强降水天气过程的中尺度分析  

The Mesoscale Analysis of a Heavy Rain Process

作　　者：薛秋芳[1] 王建中[1] 

机构地区：[1]中国气象科学研究院

出　　处：《气象》1994年第10期21-25,共5页Meteorological Monthly

基　　金：强风暴实验室提供资助

摘　　要：利用每小时增强显示红外云图、云顶黑体温度（ＴＢＢ）和常规气象资料，分析了１９９３年８月３—６日华北平原及西北地区东部一次暴雨—大暴雨过程，揭示了产生大暴雨的中α尺度对流系统的发生发展，讨论了环境场条件及天气尺度系统间的相互作用对暴雨云团的重要性，并用物理量诊断探讨雨团形成的物理机制。y using the hourly GMS infrared imagery and conventional meteorological data,an analysis of the heavy rain over Huabei plain and the east of Northwest China during 3-6 August 1993 is made. It is mainly to inquire into the problems with the genesis and development of the meso-α-ascale convective systems which caused severe convective weather. The results shown that the envirinmental conditions,especially the interaction between the cloud system of the middle and low latitudes for the formation of large cloud clusters is very important. The negative area of the wetbulb potential temperature is helpful to the prediction of the emergence of heavy rainfall.

关 键 词：降水 天气过程 中尺度 

分 类 号：P458.121[天文地球—大气科学及气象学]