| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Explosive instability of geostrophic vortices. Part 1: baroclinic instability
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| Autores: |
Carton, Xavier
Flierl, Glenn R.
Perrot, Xavier
Meunier, Thomas
Sokolovskiy, Mikhail
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| Data: |
2010-03
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| Ano: |
2010
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| Palavras-chave: |
Quasi-geostrophic equations
Inviscid flows
Vortex stability
Normal or singular modes
Parametric resonance
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| 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.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00002/11352/7925.pdf
DOI:10.1007/s00162-009-0140-7
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| Editor: |
Springer
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| Relação: |
http://archimer.ifremer.fr/doc/00002/11352/
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| Formato: |
application/pdf
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| Fonte: |
Theoretical and Computational Fluid Dynamics (0935-4964) (Springer), 2010-03 , Vol. 24 , N. 1-4 , P. 125-130
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| Direitos: |
2009 Springer. Part of Springer Science+Business Media
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