2008年7月13-14日郑州市强对流天气成因分析  

Analysis of the Cause of the Severe Convective Weather Over Zhengzhou in July 13-14,2008

作　　者：侯春梅[1] 张晓娟[2] 刘和平[3] 朱玉周[1] 王红兴[2] 

机构地区：[1]河南省气象科技服务中心,郑州450003 [2]郑州市气象局,郑州450005 [3]河南省气候中心,郑州450003

出　　处：《气象与环境科学》2009年第B09期144-148,共5页Meteorological and Environmental Sciences

摘　　要：利用高空、地面观测资料及多普勒天气雷达产品,对2008年7月13-14日郑州地区的一次强对流暴雨天气过程,从影响系统、物理量场及雷达回波等方面进行了分析,结果表明:高空东移的西风槽和副热带高压边缘的暖湿气流为此次强降水提供了有利的大尺度环流背景;地面偏东气流为降水输送了充足的水汽;低层辐合、高层辐散的强烈上升运动为降水的发生提供了动力条件。Based on the high and surface observational data and Doppler whether radar productions, the rainstorm over Zhengzhou happened on July 13-14 is analyzed from influence system, physical fields and radar echo. The results show that the warm and wet flow on the edge of subtropical high and the high-level westerly trough supply the better large-scale circulation background for the rainstorm. The surface eastern flow carries ample water vapor for the heavy precipitation. Convergence in low level and divergence in upper lever provided dynamic conditions for the heavy precipitation.

关 键 词：强对流 暖湿气流 副热带高压 垂直上升运动 

分 类 号：P458.121.1[天文地球—大气科学及气象学]