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Hamilton, P. ., Science Applications International Corporation, Raleigh, NC, USA, peter.hamilton@saic.com
Leben, R. R., CCAR, University of Colorado, Boulder, USA, leben@colorado.edu
Donohue, K. A., GSO, University of Rhode Island, Narragansett, USA, kdonohue@gso.uri.edu
Sheinbaum, J. ., CICESE, Ensenada, Mexico, julios@cicese.mx
Candela, J. ., CICESE, Ensenada, Mexico, jcandela@cicese.mx

CYCLONE DEVELOPMENT DURING THE DETACHMENTS OF LOOP CURRENT EDDIES EKMAN AND FRANKLIN: A HISTORICAL PERSPECTIVE.

Moored arrays, measuring currents, temperature and salinity, were deployed in the deep Eastern Gulf of Mexico between the west Florida slope and the Campeche Bank in April-May 2009, with mooring rotations in the summer 2010. During the summers of 2009 and 2010, two Loop Current (LC) eddies formed, named Ekman and Franklin, respectively. The initial detachments produced large LC eddies that were in a more southern location than is typical of many separations, and thus free passage to the western Gulf was blocked by the Campeche Bank, apparently allowing the observed multiple detachment-reattachment cycles before the ultimate separations. The events leading to the initial detachments of both eddies were very similar with large meander crests and troughs, with wavelengths of several hundred kilometers, developing on the east side of an extended LC that developed into a strong cyclone between the eddy and the LC in its southern port-to-port mode. Meanders were initiated by large cyclones north of the LC, in both cases. Details of these eddy formations and detachments are compared to the historical altimeter record.

Poster presentation

Session #:113
Date: 2/22/2012
Time: 17:00 - 18:00
Location: Poster/Exhibit Hall

Presentation is given by student: No

PosterID: B1332