Strong 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.

Item Type:	Refereed Article
Research Division:	Earth Sciences
Research Group:	Oceanography
Research Field:	Physical Oceanography
Objective Division:	Expanding Knowledge
Objective Group:	Expanding Knowledge
Objective Field:	Expanding Knowledge in the Physical Sciences
Author:	Benilov, ES (Dr Eugene Benilov)
ID Code:	8817
Year Published:	1996
Web of Science® Times Cited:	15
Deposited By:	Applied Computing and Mathematics
Deposited On:	1996-08-01
Last Modified:	2011-08-22
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