北盘江地形造成的安顺市一次暴雨漏报过程分析  

Analysis of a Misrepported Rainstorm Process in Anshun City Caused by the Beipan River

作　　者：李启芬[1] 汪超 蒙军[1] 肖俊[1] 罗乃兴 Li Qifen;Wang Chao;Meng Jun;Xiao Jun;Luo Naixing(Anshun Meteorological Observatory,Anshun 561000;Guizhou Miteorological Observatory,Guiyang 550000;Guiyang Meteorological Observatory,Guiyang 550000)

机构地区：[1]贵州省安顺市气象局,安顺561000 [2]贵州省气象台,贵阳550000 [3]贵州省贵阳市气象局,贵阳550000

出　　处：《气象科技进展》2021年第2期192-196,共5页Advances in Meteorological Science and Technology

基　　金：贵州省气象局科研业务项目(黔气科登[2019]07-04号)。

摘　　要：应用MICAPS常规观测资料、FNL 1°×1°再分析资料和贵阳站雷达资料对安顺市2015年6月25日夜间至26日清晨出现的一次漏报强降水过程进行分析。安顺南部镇宁至北部西秀区一带自南向北海拔高度逐步增加,为北盘江支系打邦河、清水河所在地。副热带高压西北侧、减弱的热带低压东侧的偏南气流沿着北盘江支系自南向北爬升,由于地形的存在,偏南气流在向北移动过程中,存在风速的辐合,地形为这一次暴雨提供了较强的动力抬升条件,暴雨就出现在北盘江支系的迎风坡处。In this paper,the misreported heavy precipitation process in Anshun city from the night of June 25 to the morning of 26,2015 was analyzed by using MICAPS conventional observation data,FNL1°×1°reanalysis data and radar data from Guiyang.At the same time,the altitude is gradually increased from South Zhenning to North Xixiu District,where Dabang River and Qingshui River are tributaries of Beipan River.The southerly airflow on the Northwest side of the subtropical high and on the East side of the weakened tropical depression climbed from south to north along the Beipan River tributaries.There was a convergence of wind speeds when the southerly airflow moved to north because of the topography.The topography provided strong dynamic lift conditions for this rainstorm,and the heavy rain occured in the windward slope of the Beipan River tributaries.

关 键 词：暴雨 副热带高压 热带低压 偏南气流 北盘江 

分 类 号：P457.6[天文地球—大气科学及气象学]