INTERACTION OF TOPOGRAPHY WITH SOLITARY ROSSBY WAVES IN A NEAR-RESONANT FLOW  

作　　者：吕克利 JiangHoushuo(蒋后硕) 

机构地区：[1]Department of Atmospheric Sciences,Nanjing University,Nanjing 210093

出　　处：《Acta meteorologica Sinica》1997年第2期204-215,共12页

摘　　要：An inhomogeneous KdV equation including topographic forcing is derived by using perturbation expansions and stretching transforms of time and space.The generation of forced solitary Rossby waves by topography in a near-resonant flow and their interactions with free solitary waves are discussed,and some interesting results are obtained.The numerical results show that the topography has obvious effect on enhancing the amplitude of disturbances,and it may explain to some degree the formation of blocking by localized topography.An inhomogeneous KdV equation including topographic forcing is derived by using perturbation expansions and stretching transforms of time and space.The generation of forced solitary Rossby waves by topography in a near-resonant flow and their interactions with free solitary waves are discussed,and some interesting results are obtained.The numerical results show that the topography has obvious effect on enhancing the amplitude of disturbances,and it may explain to some degree the formation of blocking by localized topography.

关 键 词：TOPOGRAPHY near-resonant solitary wave INTERACTION 

分 类 号：P433[天文地球—大气科学及气象学]