2012年7月25日呼和浩特地区暴雨过程雷达产品分析  

Analysis of Radar Products of Rainstorm Process in Hohhot Area on July 25,2012

作　　者：邸强 孔文甲 赵斐 张旭 Di Qiang;Kong Wenjia;Zhao Fei;Zhang Xu(Inner Mongolia Autonomous Regional Meteorological Observatory,Inner Mongolia Hohhot 010051)

机构地区：[1]内蒙古气象台,内蒙古呼和浩特010051

出　　处：《内蒙古气象》2018年第5期17-19,共3页Meteorology Journal of Inner Mongolia

摘　　要：2012年7月25日,呼和浩特市及周边地区出现暴雨天气。文章对这次天气过程发生期间高空、地面观测实况和区域自动气象站降水实况进行了天气学分析,在此基础上重点分析了呼和浩特市新一代天气雷达产品的结构及发展演变特征,结果表明:此次暴雨过程是副热带高压与短波槽共同作用形成的,带状暴雨落区位于副热带高压外围强盛西南暖湿气流和弱冷空气交汇处;超过30dBz回波区域不断有中-β云团生成,并且带状回波区域不时有较强回波单体生成,特征类似"列车效应";低层辐合、高层辐散、动力抬升和充沛的水汽是这次降水的主要条件。A rainstorm occurs in and around Hohhot on July 25, 2012. In this paper, the synoptic analysis of high altitude, ground observation and regional automatic meteorological station precipitation during the occurrence of this weather process was carried out. On this basis, the structure and development evolution characteristics of the new generation of weather radar products in Hohhot were emphatically analyzed. The results show that the rainstorm process is formed by the combined action of subtropical high and short wave trough, and the belt rainstorm area is located at the intersection of strong southwest warm moist air and weak cold air outside the subtropical high. The above 30dBz echo region has the formation of medium-above-ground clouds constantly, and the band echo region has the strong echo monomer formation from time to time, which is similar to the ＂train effect＂. Low-level convergence, high-level divergence, dynamic uplift and abundant moisture are the main conditions of this precipitation..

关 键 词：呼和浩特地区 暴雨过程 雷达产品 列车效应 

分 类 号：P458.121.1[天文地球—大气科学及气象学]