晋北地区一次暴雨过程分析  

Analysis on a Rainstorm Process in North Shanxi

作　　者：董文晓[1] 屈志勇[2] 张宁[2] 

机构地区：[1]山西省气象台,山西太原030006 [2]山西省气象信息中心,山西太原030006

出　　处：《山西科技》2016年第1期61-65,共5页Shanxi Science and Technology

摘　　要：利用常规的天气图、物理量场资料以及卫星云图和雷达回波图,对2008年9月23—24日发生在山西北中部地区的一次暴雨天气进行了分析,介绍了此次暴雨的环流形势演变及影响系统,对此次暴雨的物理量和卫星云图进行了研究,结果表明:暴雨主要是在高低空急流、中低层低涡切变以及地面冷锋这3个影响系统的共同作用下产生的;暴雨期间水汽比较充足,低层辐合高层辐散有利于暴雨区对流的发展;卫星云图和雷达回波图说明暴雨的发生与中-β尺度对流系统密不可分。By using the routine weather map, physical quantity field data, satellite cloud picture and radar echo map, this paper analyzes a rainstorm weather that has happened in the north central area of Shanxi Province on september 23-24, 2008 , introduces the irculation situation＇s evolution and influence system of this rainstorm, and studies the physical quantity and satellite cloud picture of this rainstorm, the results of which show that this rainstorm was produced under the joint actions of three influence systems including the upper-lower jet, middle-lower level low vortex shear and ground cold front; the water vapor is adequate during the rainstorm period, the lower-level convergence and upper-level divergence can help the development of convection; the satellite cloud picture and radar echo map illustrate that the occurrence of the rainstorm is inseparable with middle-β scale convection system.

关 键 词：暴雨过程 环流形势 物理量分析 晋北地区 

分 类 号：P426.62[天文地球—大气科学及气象学]