三统河流域一次局地极端暴雨特征  

Characteristics of a local extreme heavy rainfall in Santong River Basin

作　　者：王传贺 王智宇[1] 崔忠强[1] 张彤[1] 黄晓楠 Wang Chuanhe;Wang Zhiyu;Cui Zhongqiang;Zhang Tong;Huang Xiaonan(Tonghua Meteorological Bureau of Jilin Province,Tonghua 134000)

机构地区：[1]吉林省通化市气象局,通化134000

出　　处：《气象水文海洋仪器》2024年第6期82-84,共3页Meteorological,Hydrological and Marine Instruments

基　　金：吉林省气象局科研课题“阈值判定法在吉林省汛期短时强降水预报中的应用研究”(2019036)资助。

摘　　要：文章选取三统河流域常规气象观测数据、ERA5再分析资料、风云卫星及雷达产品等,对2022-06-29—2022-06-30通化市柳河县高台村局地极端暴雨过程进行分析。结果表明:此次极端降水发生在深厚高空槽前配合低空较强气旋切变影响下,在暖区温湿条件较好的前期环境中受副高后部低层暖湿切变的触发产生;中低层深厚的水汽饱和层和不稳定能量的增大为极端暴雨的持续提供了水汽和动力条件,表现为强烈的“列车效应”。研究结果旨在为局地暴雨的短时临近预警叫应工作提供一定参考。This paper selects conventional meteorological observation data,ERA5 reanalysis data,Fengyun satellite and radar products in the Santong River Basin to analyze the local extreme rainstorm process in Gaotai Village,Liuhe County,Tonghua City from June 29,2022 to June 30,2022.The results indicate that this extreme precipitation occurred in the background of a deep high-altitude trough and was influenced by strong low-level cyclonic shear.It was triggered by the low-level warm and humid shear behind the subtropical high in the early environment with better warm and humid conditions in the warm zone.The deep water vapor saturation layer in the middle and lower levels and the increase of unstable energy provide water vapor and dynamic conditions for the continuation of extreme rainstorm,which is manifested as a strong"train effect".The research results are intended to provide some reference for the short-term approaching early warning of local rainstorm.

关 键 词：极端暴雨 环流形势 对流云团 列车效应 

分 类 号：P458[天文地球—大气科学及气象学]