Data/hora: 05/06/2024 04:29:52

Provedor de dados: | 5
País: | France
Título: | Explosive instability of geostrophic vortices. Part 1: baroclinic instability
Autores: | Carton, Xavier; Flierl, Glenn R.; Perrot, Xavier; Meunier, Thomas; Sokolovskiy, Mikhail.
Data: | 2010-03
Ano: | 2010
Palavras-chave: | Quasi-geostrophic equations; Inviscid flows; Vortex stability; Normal or singular modes; Parametric resonance.
Resumo: | In a quasi-geostrophic model, we study the baroclinic instability of a two-layer vortex. The singular unstable modes for potential vorticity anomalies are compared with the classical normal modes. Short-time singular modes are explosively unstable and, at short times, depend only on the baroclinic component of the flow. As time progresses, they evolve towards the normal modes and their sensitivity to flow parameters is explored. Asymptotic solutions are provided.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00002/11352/7925.pdf

DOI:10.1007/s00162-009-0140-7

Editor: | Springer
Relação: | http://archimer.ifremer.fr/doc/00002/11352/
Formato: | application/pdf
Fonte: | Theoretical and Computational Fluid Dynamics (0935-4964) (Springer), 2010-03 , Vol. 24 , N. 1-4 , P. 125-130
Fonte: | 2009 Springer. Part of Springer Science+Business Media