Spectral Properties of the Baroclinic Waves in an Annulus with a Rigid Upper Surface

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  • 1 Department of Atmospheric Science, State University of New York at Albany, Albany, N. Y. 12222
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Abstract

The spectral characteristics of the temperature field associated with the baroclinic waves in a rotating annulus of water with a rigid upper surface are presented as an extension of Rao and Ketchum (1975). The results indicate a clear nonlinear maintenance of the harmonies of the fundamental wave in the equilibrated state similar to the feature observed with a free upper surface. The period of the temperature oscillation in the case of rigid upper surface is approximately four times longer than that with a free upper surface.

Abstract

The spectral characteristics of the temperature field associated with the baroclinic waves in a rotating annulus of water with a rigid upper surface are presented as an extension of Rao and Ketchum (1975). The results indicate a clear nonlinear maintenance of the harmonies of the fundamental wave in the equilibrated state similar to the feature observed with a free upper surface. The period of the temperature oscillation in the case of rigid upper surface is approximately four times longer than that with a free upper surface.

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