Explosive instability of geostrophic vortices. Part 2: parametric instability

Authors :: Xavier Carton
Thomas Meunier
Mikhail A. Sokolovskiy
Glenn R. Flierl
Xavier Perrot
Laboratoire de physique des océans (LPO)
Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)
EAPS
Massachusetts Institute of Technology (MIT)
Water Problems Institute of the Russian Academy of Sciences
Russian Academy of Sciences [Moscow] (RAS)
Source :: Iutam Bookseries ISBN: 9789048185832, Theoretical and Computational Fluid Dynamics, Theoretical and Computational Fluid Dynamics, Springer Verlag, 2010, 24 (1-4), pp.131-135. ⟨10.1007/s00162-009-0139-0⟩, Theoretical and Computational Fluid Dynamics (0935-4964) (Springer), 2010-03, Vol. 24, N. 1-4, P. 131-135
Publication Year :: 2009
Publisher :: Springer Netherlands, 2009.
Abstract: International audience; In a two-layer quasi-geostrophic model, a baroclinic vortex is submitted to a periodic forcing of its mean baroclinic azimuthal velocity. It is shown that parametric effects could stabilize a vortex which is baroclinically unstable in the absence of forcing. Conversely, parametric resonance can destabilize a baroclinically stable vortex, under conditions on the vortex parameters, on the ratio of layer thicknesses or on the forcing frequency.

ISBN :: 978-90-481-8583-2
ISSN :: 09354964 and 14322250
ISBNs :: 9789048185832
Database :: OpenAIRE
Journal :: Iutam Bookseries ISBN: 9789048185832, Theoretical and Computational Fluid Dynamics, Theoretical and Computational Fluid Dynamics, Springer Verlag, 2010, 24 (1-4), pp.131-135. ⟨10.1007/s00162-009-0139-0⟩, Theoretical and Computational Fluid Dynamics (0935-4964) (Springer), 2010-03, Vol. 24, N. 1-4, P. 131-135
Accession number :: edsair.doi.dedup.....bc0239714f2d7ae8cc23da9f95d27d6d
Full Text :: https://doi.org/10.1007/978-90-481-8584-9_17