山西省93年“八·四”暴雨分析

ANALYSIS OF RAINSTORM ON AUGUST 4TH 1993 IN SHANXI PROVINCE

利用山西省南部暴雨监测试验的实测资料，着重分析了93年8月4日本省中南部出现的较大范围暴雨过程的中小尺度作用，揭示了雨团与中尺度云团的活动演变特征、中尺度辐合系统的触发作用、气压扰动与降雨的关系及地形影响等方面的特点。加深了对本类过程发生发展的认识。

Using the practical data of south rainstorm monitoring test In Shanxl province， we emphaticallyanalysed the effect ofmeso—micro－scale In the wide ralnstorm process takingplace on August 4th 1993，In the middle south of Shanxl province and revealed the movementevolution characteristic of rain mass andmesoscale cloud cluster，the trigger effect of meso scale covergence system、 the relation between pressure disturbance， and rainfall and re．vealed the importance of terrain effect．Thus this study can deepen the recognition of the ore－ation and development In this kind of process．