NUMERICAL STUDY OF COLD AIR IMPACT ON RAINFALL REINFORCEMENT ASSOCIATED WITH TROPICAL CYCLONE TALIM(2005):*** OF DIFFERENT COLD AIR INTENSITY

作     者：董美莹 陈联寿 李英 程正泉 郑沛群 

作者机构：Zhejiang Institute of Meteorological Sciences State Key Laboratory of Severe WeatherChinese Academy of Meteorological Sciences Guangdong Provincial Meteorological Observatory Zhejiang Provincial Meteorological Observatory 

出 版 物：《Journal of Tropical Meteorology》 (热带气象学报（英文版）)

年 卷 期：2013年第19卷第1期

页      面：87-96页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 0816[工学-测绘科学与技术] 0825[工学-航空宇航科学与技术] 

基　　金：Meteorological Technology Special Opening Projects of Zhejiang Province (kf2010002) National Public Welfare Special Project of China (GYHY201206006) Planning Project for Key National Fundamental Research (2009CB421504) National Natural Science Foundation of China (41105062,40675033) Meteorological Technology Planning Projects of Zhejiang Province (2011ZD01) 

主　　题：numerical study cold air tropical cyclone rainfall reinforcement 

摘      要：In 2005,significant rainfall reinforcement and severe disaster was induced by tropical cyclone(TC) Talim after it made landfall on the east of *** analyses show that it has relationship with cold air *** investigating the impact of cold air intensity,we make use of Weather Research and Forecasting(WRF) model,the synthesizer of NCEP/NCAR reanalysis data and Japan regional spectral model data,to carry out numerical *** show that rainfall reinforcement occurs in all *** intensity of cold air can modify the rainfall distribution and intensity *** the rainfall center,the increment maximum of rainfall is twice as large as that of the *** cold air intrusion may result in the strongest rainfall *** cold air intensity can lead to different motion of low-level convergence lines and *** is a good relationship between the rainfall region and the eastern part of the *** one hand,strong cold air weakens the TC intensity by its intrusion into the TC center and results in weak convergence and a convergent zone and a rain band shifted *** the other hand,weak cold air reduces the convergence and moves the convergent zone and rain band *** cold air intrusion maintains strong low-level convergence and high-level divergence,keeping strong upward motion over certain ***,the rain band begins to stagnate and rainfall reinforces abruptly therein.