Program and Agenda

Abstract

EKMAN, FRANKLIN AND HADAL: LOOP CURRENT EDDY SEPARATION AND STATISTICS FROM OBSERVATIONS

Growth and separation of three major Loop Current (LC) eddies were observed between May 2009 and November 2011 with a combined US and Mexican array of full-depth moorings, near bottom moorings, and PIES in a region that encompassed the eastern slope of the Campeche bank, and the deep waters of the eastern Gulf. Development and separation of three eddies, Ekman, Franklin and Hadal, differ in location, size, and multiple detachments and reattachments, but share dynamical features. The latter include the development of large amplitude (~ 100 km), long wavelength (~ 300 km) southward propagating meanders (~ 40-60 day periods) on the east side of an extended LC, where a growing cyclonic trough can cause detachment at the “neck” between the LC and eddy. Smaller scale frontal eddies, with periods < 20 days, show strong growth, along the western LC front, but have little influence in deeper water, further around the front. Circulations of the meanders are strongly coupled to the lower layer with characteristics of baroclinic instabilities. Separations generate large increases in lower layer eddy kinetic energy and relative vorticity.

ePoster: http://www.eposters.net/poster/ekman-franklin-and-hadal-loop-current-eddy-separation-and-statistics-from-observations

Authors

Hamilton, P., Leidos Corporation (formerly SAIC), Raleigh, NC, USA, peter.hamilton@leidos.com

Sheinbaum, J., CICESE, Ensenada, B.C., Mexico, julio sheinbaum

Donohue, K. A., GSO/ University of Rhode Island, Narragansett, RI, USA, Kathleen Donohue

Leben, R. R., CCAR/ University of Colorado, Boulder, CO, USA, Robert Leben

Watts, D. R., GSO/ University of Rhode Island, Narragansett, RI, USA, DRandolph Watts

Details

Poster presentation

Session #:058
Date: 2/25/2014
Time: 16:00 - 18:00
Location: Poster/Exhibit Hall

Presentation is given by student: No

PosterID: 2896