桂西6月份两次连续强降水过程诊断分析  

DIAGNOSTIC ANALYSIS ON TWO HEAVY PRECIPITATION ON JUNE IN WEST OF GUANGXI

作　　者：邓汝伊[1] 

机构地区：[1]百色市气象局,广西百色533000

出　　处：《云南地理环境研究》2008年第S1期92-95,共4页Yunnan Geographic Environment Research

摘　　要：利用ECMWF数值预报资料和M ICAPS常规观测资料,通过天气形势和物理量诊断分析的方法,对桂西6月8~12日发生的两次强降水的天气系统进行诊断分析,结果表明两次强降水过程与南支槽不断波动东移有关,南支槽过境配合高低空急流,是造成强降水天气的主要原因。ECMWF数值预报对高空槽、低空切变的预报与实况基本一致,对暴雨预报有很好的指示意义。Based on the numerical prediction information of ECMWF and conventional observational data,by using the methods of the diagnostic physical data and the weather analysis,the weather-scale weather systems of the two heavy precipitation on June 8 to 12 took place in west of Guangxi are analyzed.Results show that two process are caused by the volatile south-eastward shift of the trough and South-level trough of air transit with rapids.The consistent forecast results of upper trough、the development of lower-shear from the products of ECMWF numerical prediction information,have great indicatie significance for rainstorm forecast.

关 键 词：强降水 灾害性 天气系统 

分 类 号：P458.121.1[天文地球—大气科学及气象学]