晋中2002年9月11日暴雨的诊断分析

Diagnosis of Heavy Rain Event on September 11th 2002 in Jinzhong,Shanxi Province

对 2 0 0 2年 9月 1 1日山西省晋中市灵石、和顺两地暴雨进行了诊断分析 ,结果表明 :活跃的副高是造成晋中 9月强降水的主要影响系统 ,此时 ,地面不一定有冷锋配合。暴雨落区位于高能、高湿舌区的辐合中心 ,且低层湿舌较中层湿舌滞后 ,而低层能舌较中层能舌超前。另外 ,单站要素和本地地形是预报局地暴雨的重要参考因素。

Heavy rain event on September 11 2002 in Lingshi and Heshun, Jinzhong city, Shanxi province is diagnosed. The results show that the event is caused by active subtropical high, at the moment, there is also a uncertain cold front on the surface. The area where the heavy rain event lies to center of high energetic humid tongue. Low-layer humid tongue lags behind mid-layer humid tongue. In addition, local meteorological factors and local topography could be taken for factors of the reference to forecast local heavy rainfall.