摘要
运用非线性方法与摄动法,讨论了当地形随时间缓变时Rossby波振幅的演变问题.从均值流体准地转涡度方程推导,得到Rossby波振幅演变满足带有强迫项的KdV方程的结论,而地形随时间的缓慢变化诱导了该方程的强迫项.
Employing the weakly nonlinear method and perturbation method, the evolution of the amplitude of Rossby waves when the topography slowly changes is studied. A KdV equation with a forcing term governing this evolution is obtained from the quasigeostrophic vorticity equation, and the forcing term is induced by the slowly changing topography.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2008年第4期2595-2599,共5页
Acta Physica Sinica
基金
国家重点基础研究发展规划(批准号:2006CB400503)
国家自然科学基金(批准号:90411008,40675044)资助的课题~~
