安徽农业科学2018，Vol.46Issue(15)：145-150,166,7.
2017年昆明一次大暴雨过程的中尺度分析
Mesoscale Analysis of a Heavy Rainstorm in Kunming in 2017
摘要
Abstract
Using conventional observation data and unconventional observational data such as satellites and radars, the weather causes of the heavy rainstorm process in the main city of Kunming on July 20,2017 were analyzed and the features of the mesoscale convective system were comprehensively analyzed.The results showed that the 500 hPa two high convergence area was the weather scale effect system during the heavy rainstorm process;Convective instability stratification with high energy and high humidity,and suitable vertical wind shear were favorable con-ditions for the formation of strong convective weather.The mesoscale convective system(MCS)developed in the region of vector divergence convergence.The short-term heavy precipitation mainly occured in the convective active TBB isoline dense area at the front of the MCS mo-bile,and the change of rainfall intensity was closely related to the gradient change of TBB isoline.Doppler radar showed that the upwind region was a direct impact system for strong convective rainstorms;the echo intensity was 35 -45 dBz,and the strongest was 49 dBz;the area where the echo top height exceeds 10 km corresponded to a strong thunderstorm.There was a good correspondence between short-term heavy precipi-tation and thunderstorm weather.关键词
强对流暴雨/天气成因/中尺度分析/昆明Key words
Strong convective rainstorm/Weather origin/Mesoscale analysis/Kunming分类
农业科技引用本文复制引用
鲁亚斌,李华宏,闵颖,王志云..2017年昆明一次大暴雨过程的中尺度分析[J].安徽农业科学,2018,46(15):145-150,166,7.基金项目
国家自然科学基金项目(41565004) （41565004）
云南省科技惠民专项(2016RA096). （2016RA096）
