Open AccessKdV equation with a forcing term for the evolution of the amplitude of Rossby waves along a slowly changing topography
Author(s) -
Chaojiu Da,
Chou Jifan
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.2595
Subject(s) - rossby wave , forcing (mathematics) , amplitude , korteweg–de vries equation , term (time) , physics , perturbation (astronomy) , potential vorticity , geostrophic wind , nonlinear system , vorticity , evolution equation , vorticity equation , classical mechanics , atmospheric sciences , mechanics , vortex , mathematical analysis , mathematics , quantum mechanics
Employing the weakly nonlinear method and perturbation method, the evolution ofthe amplitude of Rossby waves when the topography slowly changes is studied. AKdV equation with a forcing term governing this evolution is obtained from the quasi-geostrophic vorticity equation, and the forcing term is induced by the slowly changing topography.