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The anti-cyclonic shear wave: a new geophysical wave

Published online by Cambridge University Press:  17 February 2009

Roger L. Hughes
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Abstract

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A new type of first baroclinic mode wave which propagates on an anti-cyclonic vorticity field in identified. It is of the vorticity class of waves which contains Rossby waves amongst others. This anti-cyclonic shear wave is produced by pressure variations distorting the vertical stratification in such a manner that the associated vortex stretching generates the velocity variation required for Bernoulli compatibility with the initial pressure variation. The wave travels at a speed characteristic of particles within the undisturbed shear flow and is a low frequency and low wavenumber wave, In the present study this wave is considered in the presence of a wark anti-cyclonic shear.

Type
Research Article
Information
The ANZIAM Journal , Volume 25 , Issue 1 , July 1983 , pp. 110 - 126
Copyright
Copyright © Australian Mathematical Society 1983

References

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