2020年6月中下旬绍兴市一次暴雨天气过程诊断分析  

Diagnostic Analysis of A Rainstorm Weather Process in Shaoxing City in the Middle and Late June 2020

作　　者：贾安琪 姚佳俊 Jia An-qi(Shaoxing Meteorological Bureau,Shaoxing,Zhejiang 310000)

机构地区：[1]绍兴市气象局,浙江绍兴310000 [2]嵊州市气象局,浙江嵊州312400

出　　处：《农业灾害研究》2023年第5期64-66,共3页Journal of Agricultural Catastrophology

摘　　要：利用自动气象站资料及NCEP再分析资料等相关气象资料对2020年6月中下旬绍兴市一次暴雨天气过程进行诊断分析。结果表明:此次绍兴市暴雨天气的主要影响系统包括500 hPa高空槽、700 hPa、850 hPa切变及高低空急流;水汽条件主要源于黄海及南海;从动力条件来看,此次暴雨天气过程呈现中高层辐散、中低层正涡度辐合的动力结构,并且整个对流层均分布着垂直上升运动,为此次暴雨天气的发生提供了有利的动力条件。A rainstorm weather process in Shaoxing City in the middle and last ten days of June 2020 is diagnosed and analyzed by using the automatic weather station data,NCEP reanalysis data and other relevant meteorological data.The results show that the main influence systems of rainstorm weather in Shaoxing include 500 hPa high trough,700 hPa,850 hPa shear and high and low level jet;Water vapor conditions mainly originate from the Yellow Sea and the South China Sea.In terms of dynamic conditions,the rainstorm weather process presents a dynamic structure of middle and upper level divergence and middle and lower level positive vorticity convergence,and the whole troposphere is distributed with vertical upward movement,which provides favorable dynamic conditions for the occurrence of the rainstorm weather.

关 键 词：绍兴市 暴雨天气 环流背景 物理量 

分 类 号：P458.121.1[天文地球—大气科学及气象学]