Modified KdV equation for solitary Rossby waves with β effect in barotropic fluids  

作　　者：宋健 杨联贵 

机构地区：[1]College of Sciences,Inner Mongolia University of Technology [2]College of Mathematical Sciences,Inner Mongolia University

出　　处：《Chinese Physics B》2009年第7期2873-2877,共5页中国物理B（英文版）

基　　金：Project supported by the Educational Department of Inner Mongolia (NJZY:08005);Open Fund of the Key Laboratory of Ocean Circulation and Waves,Chinese Academy of Sciences (Grant No KLOCAW0805)

摘　　要：This paper uses the weakly nonlinear method and perturbation method to deal with the quasi-geostrophic vorticity equation,and the modified Korteweg-de Vries（mKdV） equations describing the evolution of the amplitude of solitary Rossby waves as the change of Rossby parameter β（у） with latitude у is obtained.This paper uses the weakly nonlinear method and perturbation method to deal with the quasi-geostrophic vorticity equation,and the modified Korteweg-de Vries（mKdV） equations describing the evolution of the amplitude of solitary Rossby waves as the change of Rossby parameter β（у） with latitude у is obtained.

关 键 词：nonlinear Rossby waves mKdV equation β effect perturbation method 

分 类 号：O35[理学—流体力学]