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Beta-Induced Translation of Strong Isolated Eddies
journal contribution
posted on 2023-05-16, 10:21 authored by Benilov, ESStrong eddies on the β plane are considered within the framework of the one-layer primitive equations. The attention is focused on calculating the β-induced changes to the spatial structure of the eddy, as well as the speed of its translation. In contrast to the earlier studies, the results of this paper are valid for eddies with Ro ∼ 1 and are applicable to both lenses and eddies in a layer of nonzero average depth. It is demonstrated that no steady solution exists for eddies translating at a speed inside the Rossby-wave speed range, reflecting that such eddies must radiate and lose energy. In addition to the speed restriction, steadily translating eddies must satisfy a certain constraint imposed on their far-field asymptotics.
History
Publication title
Journal of Physical OceanographyVolume
26Issue
10Pagination
2223-2229ISSN
0022-3670Department/School
School of Natural SciencesPublisher
Amer Meteorological SocPlace of publication
45 Beacon St, Boston, USA, Ma, 02108-3693Repository Status
- Restricted