2020年7月10日至12日林芝市一次连续强降水天气过程分析

Analysis of A Continuous Heavy Precipitation Process in Nyingchi City from July 10-12,2020

2020年7月10~12日林芝市出现了一次连续强降水天气过程,降水强度大、范围广。本文从亚欧500hPa及700hPa环流形式、物理量场、卫星云图、数值预报产品等几方面对这次强降水过程进行了综合分析,发现此次强降水过程是由高空短波槽和孟加拉湾气旋云系及地貌等共同影响引发。

A continuous heavy precipitation process occurred in Nyingchi city from July 10 to 12,2020,with large intensity and wide range.In this paper,a comprehensive analysis is made on the circulation pattern,physical quantity field,satellite cloud image and numerical forecast product of 500hPa and 700hPa over Asia and Europe.It is found that the heavy precipita⁃tion process is caused by the combined influence of the high altitude short-wave trough and the bay of Bengal cyclone cloud system and geomorphology.