Multiple equilibria of cross-equatorial Inertial jets

作     者：CHAO JiPing1,2 & LIU Fei3,4 1 National Marine Environmental Forecasting Center, Beijing 100081, China 2 The First Institute of Oceanography ,SOA, Qingdao 266060, China 3 Key Laboratory Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China 4 Graduate University of Chinese Academy of Sciences, Beijing 100039, China 

作者机构：National Marine Environmental Forecasting Center Beijing 100081 China The First Institute of Oceanography SOA Qingdao 266060 China Key Laboratory Regional Climate-Environment for Temperate East Asia Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China Graduate University of Chinese Academy of Sciences Beijing 100039 China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2007年第50卷第1期

页      面：153-160页

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

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 4023012) the National Basic Research Program of China (Grant No. 2006cb400500) 

主　　题：multiple equilibria cross-equatorial inertial jets the potential vorticity energy conservation. 

摘      要：Based on the developed Anderson and Moore s theory about cross-equatorial inertial jets and a nonlinear equivalence shallow water model, new universal functions are determined by the characters of the vortical large-scale air flow (atmosphere) or ocean current (ocean) related to the jet, then the potential vorticity and energy conservation equations along the streamline in the cross-equatorial in-ertial jets can be obtained. Because the governing equations are nonlinear, some limited multiple equi-libria of cross-equatorial inertial jets may exist. According to the character of large-scale air flow or ocean current outside the jets, the existent criterion for multiple eqnilibria in cross-equatorial inertial jets is discussed, and two examples for multiple equilibia of nonlinear governing equations are given.