On Rossby waves modified by weak sinusoidal shear

Shepherd, T. G. ORCID: https://orcid.org/0000-0002-6631-9968 (1988) On Rossby waves modified by weak sinusoidal shear. Geophysical & Astrophysical Fluid Dynamics, 40 (3-4). pp. 225-237. ISSN 1029-0419 doi: 10.1080/03091928808208826

Abstract/Summary

The spatial structure of beta-plane Rossby waves in a sinusoidal basic zonal flow U 0cos(γ,y) is determined analytically in the (stable) asymptotic limit of weak shear, U 0γ2 0/β≈1. The propagating neutral normal modes are found to take their greatest amplitude in the region of maximum westerly flow, while their most rapid phase variation is achieved in the region of maximum easterly flow. These results are shown to be consistent with what is obtained by ray-tracing methods in the limit of small meridional disturbance wavelength.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/32990
Item Type	Article
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
Publisher	Taylor & Francis Ltd
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