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

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 re...

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Veröffentlicht in:	Journal of fluid mechanics 1990-12, Vol.221, p.161-181
Hauptverfasser:	Gnevyshev, Vladimir G., Shrira, Victor I.
Format:	Artikel
Sprache:	eng
Schlagworte:	Dynamics of the ocean (upper and deep oceans) Earth, ocean, space Exact sciences and technology External geophysics Marine Physics of the oceans
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Zusammenfassung:	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.
ISSN:	0022-1120 1469-7645
DOI:	10.1017/S0022112090003524