大气科学学报2011，Vol.34Issue(6)：662-671,10.
西南季风与登陆台风耦合的暴雨增幅诊断及其数值模拟
Diagnosis and numerical simulation of increased torrential rainfall associated with a landfalling typhoon coupled with southwest monsoon
摘要
Abstract
The amplifying of the torrential rainfall of the landing Tropical Storm Bilis（0604） and moisture budget around the typhoon vortex are studied with the dataset of CMA-STI Tropical Cyclone Optimal Tracks,the NCEP/NCAR reanalysis data and the intensive surface observations.Results show that the southwest monsoon provides abundant water vapor for torrential rainfall during the landfall of Bilis,and has important influence on the long time maintenance and torrential rainfall increament of the landing typhoon.The rainfall of Bilis after landfall is simulated by WRF（weather research and forecasting） model,showing that the model can preferably simulate the rainfall intensity and torrential rain area.The simulated path is mainly coincident with the observed path,although there is some difference between them.Rainfall is significantly increased on the south side of the typhoon centre at the onset of the monsoon surge.Results of the sensitive experiments show that the typhoon rainfall intensity is closely associated with the moisture transport,and the decrease of water vapor can remarkably weaken the rainfall,indicating that the moisture transport of southwest monsoon plays an important role in the torrential rainfall of landing typhoon.关键词
登陆台风/西南季风/水汽收支/数值模拟Key words
landing typhoon/southwest monsoon/moisture budget/numerical simulation分类
天文与地球科学引用本文复制引用
王黎娟,高辉,刘伟辉..西南季风与登陆台风耦合的暴雨增幅诊断及其数值模拟[J].大气科学学报,2011,34(6):662-671,10.基金项目
国家重点基础研究发展计划项目 （）
高校博士点新教师基金资助项目 （）
江苏省“333”工程项目 （）
