广西几次不同类型天气系统造成暴雨过程的物理量分析  

Analysis of the Physical Data of Several Rainstorm Processes caused by different Weather Systems

作　　者：曾小团[1] 农孟松[1] 赵金彪[1] 

机构地区：[1]广西气象台,广西南宁530022

出　　处：《气象研究与应用》2007年第4期1-4,7,共5页Journal of Meteorological Research and Application

摘　　要：利用NCEP(分辨率2.5×2.5)再分析格点资料和北京"9210"系统下发MICAPS格式常规资料对影响广西6次暴雨过程中的影响天气系统分型,在此基础上利用T 213物理量(比湿、水汽通量、水汽通量散度、垂直速度、涡度、散度、假相当位温500hPa与850hPa的差值、K指数)格点资料对这6次过程进行垂直剖面和前后时序分析,试图找出不同类型天气系统影响广西造成暴雨过程的一些物理量的共同特征。Using the NCEP reanalysis grid data and the general data of MICAPS format given by the ＂9210＂ system of Beijing,we dispart the weather systems of 6 times rainstorm processes that influence Guangxi,and using the physical data（specific humidity,moisture flux,moisture flux divergency,vertical vorticity,vorticity,divegency,difference of potential pseudo-equivalent temperature between 500hPa and 850hPa layer,K index） of T213,we analyze the vertical section and time sequence of the 6 times processes to find out the common characteristic of several rainstorm processes that influence Guangxi caused by different weather systems.

关 键 词：天气系统 暴雨 物理量 

分 类 号：P457[天文地球—大气科学及气象学]