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On the evaluation of barotropic-baroclinic instability parameters of zonal flows on a beta-plane

Published online by Cambridge University Press:  26 April 2006

Vladimir G. Gnevyshev  and
Victor I. Shrira
Vladimir G. Gnevyshev
Affiliation:
P. P. Shirshov Institute of Oceanology, USSR Academy of Sciences, Krasikova 23, Moscow 117218, USSR
Victor I. Shrira
Affiliation:
P. P. Shirshov Institute of Oceanology, USSR Academy of Sciences, Krasikova 23, Moscow 117218, USSR
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Abstract

The paper is concerned with the problem of the linear stability of an arbitrary inviscid zonal flow on a β-plane. Based on the analysis of integral relations following from the linear boundary-value problem, new evaluations, considerably more exact than the previously known ones, of the parameter region of unstable disturbances are derived. Some new relations among these bounds are established.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 221 , December 1990 , pp. 161 - 181
Copyright
© 1990 Cambridge University Press

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