Data/hora: 07/06/2024 00:57:37

Provedor de dados: | 5
País: | France
Título: | A study of the phase instability of quasi-geostrophic Rossby waves on the infinite beta-plane to zonal flow perturbations
Autores: | Marie, Louis.
Data: | 2010
Ano: | 2010
Resumo: | The problem of the linear instability of quasi-geostrophic Rossby waves to zonal flow perturbations is investigated on an infinite beta-plane using a phase dynamics formalism. Equations governing the coupled evolutions of a zonal velocity perturbation and phase and amplitude perturbations of a finite-amplitude wave are obtained. The analysis is valid in the limit of infinitesimal, zonally invariant perturbation components, varying slowly in the meridional direction and with respect to time. In the case of a slow sinusoidal meridional variation of the perturbation components, analytical expressions for the perturbation growth rates are obtained, which are checked against numerical codes based on standard Floquet theory.
Tipo: | Text
Idioma: | Inglês
Identificador: | http://archimer.ifremer.fr/doc/00008/11903/8612.pdf
Editor: | Copernicus Gesellschaft Mbh
Relação: | http://archimer.ifremer.fr/doc/00008/11903/
Formato: | application/pdf
Fonte: | Nonlinear Processes In Geophysics (1023-5809) (Copernicus Gesellschaft Mbh), 2010 , Vol. 17 , N. 1 , P. 49-63
Fonte: | Author(s) 2010. European Geosciences Union