“苏拉”台风倒槽引发鄂西北特大暴雨的诊断分析  

Diagnostic Analysis on Heavy Torrential Rain in the Northwest Hubei Caused by Typhoon Saola Inverted Trough

作　　者：朱明[1] 夏金[1] 

机构地区：[1]湖北省十堰市气象局,十堰442000

出　　处：《高原山地气象研究》2015年第1期74-79,共6页Plateau and Mountain Meteorology Research

基　　金：湖北省气象局拔尖人才基金

摘　　要：利用常规观测资料、NCEP1°×1°逐6h再分析资料、地面自动站雨量资料,对1209号台风"苏拉"倒槽造成鄂西北特大暴雨天气过程进行诊断分析,结果表明:本次强降水天气过程是在"苏拉"台风倒槽、东南风和东风超低空急流、华北冷锋共同作用下产生的;台风倒槽建立了来自海上的水汽通道,为特大暴雨区提供了源源不断的水汽,降水强度则与水汽通量散度密切对应。Using conventional observation data,NCEP1 ° × 1°6h reanalysis data,diagnostic analysis on heavy torrential rain in the Northwest of Hubei which is caused by 1209 typhoon Saola inverted trough. The results show that： the process of strong precipitation weather effects on the typhoon Saola inverted trough,Southeast and East jet,the cold front from the North.Typhoon trough establishes a water vapor channel from the sea,which provides continuous vapor to the heavy rainfall area,and the rainfall intensity corresponds closely with the moisture flux divergence.

关 键 词：特大暴雨 台风倒槽 诊断分析 

分 类 号：P458.3[天文地球—大气科学及气象学]