罕见的一次暴雨形势场回顾

应用常规气象观测资料、天气图、气象卫星、雷达资料等,对2008年7月30-31 日发生在内蒙古鄂尔多斯市北部的一次区域性暴雨天气进行综合分析,结果表明:西太平洋副热带高压西伸北挺和西来槽东移,为暴雨形成提供了有利的大尺度环流背景,高空急流、切变线、地面冷锋是暴雨产生的主要影响系统,偏南气流的建立为暴雨提供了源源不断的水汽条件.

Review on the Situation Field of Infrequent Torrential Rain

Using conventional meteorological observation data, weather charts, meteorological satellite and radar data, a regional torrential rain weather that occurred in the north of Erdos on 30-31 th of July in 2008 years were analyzed, the results showed that the West Pacific subtropical high extended northward and westward, and the western trough moved eastward provided favorable large scale circulation background for torrential rain formation, high-level jet stream, shear line, the ground cold front are the main influencing system of the torrential rain, the establish of south airflow provided continuously water vapor condition for torrential rain.