2020年7月7日南方地区的一次暴雨分析

Analysis of a Heavy Rain in the Southern Region on July 7,2020

利用红外云图、水汽图、天气图相结合的方法,对2020年7月7日南方一次暴雨进行研究。结果表明:(1)此次暴雨是由一系列对流云造成的,而这些云团是在一定的大尺度云系背景下发生的;(2)云团的云型与大气流场有着密切的关系,从云团的云型特征可以分析大气气流与对流云间的相互作用;(3)云带的衰减与新生并存使得云团的生命期较长,所以降水持续过程长且强度较大、范围广。

The rainstorm on July 7,2020is studied by combining infrared cloud map,water vapor map and weather map.The results showed that:(1)The heavy rain was caused by a series of convective clouds,and these cloud clusters occurred in the background of a certain large-scale cloud system of.(2)The cloud type of the cloud cluster had a close relationship with the atmospheric air field.From the cloud type characteristics of the cloud could cluster,the interaction between the atmospheric airflow and the convective cloud could be analyzed.(3)The coexistence of attenuation and regeneration of cloud belts made the lifetime of cloud clusters longer,so the precipitation last for a long time,had a large intensity,and has a wide range.