一次河北大暴雨的华北低涡结构和涡度收支分析

Study of the Vortex Structure and Vorticity Budget on a Heavy Rain in North China

摘要: 利用Micaps系统下常规资料、云图资料和NCEP全球再分析资料,对2004年7月11—12日发生在河北省中南部的一次局地大暴雨个例进行了诊断分析。结果表明:200 hPa西风槽、500 hPa华北低涡和中低层偏东风,是这场暴雨的直接影响系统,该过

Abstract: Based on routine observations,satellite data in Micaps system and NCEP 1°×1° re-analysis data,a local severe heavy rain occurred in Hebei Province on July 11-12,2004 was analyzed.The westerly trough at 200 hPa