The Mesoscale barotropic Instability of Vortex-Rossby waves in Tropic Cyclones

作     者：ZHONG Wei~1,LU Han-Cheng~1,ZHANG Da-Lin~2 1 Institute of Meteorology,PLA University of Science and Technology,Nanjing 211101 2 Department of Atmospheric and Oceanic Science,University of Maryland,College Park,Maryland, 20742,U.S.A. 

会议名称：《第七次全国动力气象学术会议》

会议日期：2009年

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：supported by Natural Science Foundation of China(Grant No.40830958) the national Basic Research Program of China(Grant No.2004CB418301),and the US NSF Grant ATM-0758609 

摘      要：正The Mesoscale barotropic Instability of vortex-Rossby waves on two-dimentional inviscid vortices was discussed for non-divergent vorticity dynamics on an f *** necessary instable conditions are *** first instable condition is that there must be at least one zero point of basic vorticity gradient in radial scope,which provides the necessary condition for background