A numerical study of eddy steering by background flows

Gulf Stream warm core rings are intense, isolated eddies which form to the north of the Gulf Stream from cutoff meanders which detach from the Stream. After their formation they are embedded in the cooler Slope Water which flows generally westward, impinging on the continental slope near 70 W. Obser...

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Main Author:	Huddleston, Ray T.
Other Authors:	Smith, D.C.
Language:	en_US
Published:	Monterey, California: Naval Postgraduate School 2013
Online Access:	http://hdl.handle.net/10945/28412

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spelling	ndltd-nps.edu-oai-calhoun.nps.edu-10945-284122014-11-27T16:17:23Z A numerical study of eddy steering by background flows Huddleston, Ray T. Smith, D.C. Semtner, A.J. NA NA Meteorology and Physical Oceanography Gulf Stream warm core rings are intense, isolated eddies which form to the north of the Gulf Stream from cutoff meanders which detach from the Stream. After their formation they are embedded in the cooler Slope Water which flows generally westward, impinging on the continental slope near 70 W. Observations indicate that the Slope Water flows westward at approximately 5 cm/s. In this study, the effect of background shear flows on anticyclonic eddy motion is examined using a two layer primitive equation model. The effect of various lateral shear profiles is considered for barotropic and equivalent barotropic eddies. Results indicate that eddy zonal propagation is dependent on the eddy initial vertical profile and form of the background shear lateral profile. Eddy meridional speeds are found to be insensitive to background shear profile or strength 2013-02-15T23:33:06Z 2013-02-15T23:33:06Z 1990 Thesis http://hdl.handle.net/10945/28412 ocn587674037 en_US This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, it may not be copyrighted. Monterey, California: Naval Postgraduate School
collection	NDLTD
language	en_US
sources	NDLTD
description	Gulf Stream warm core rings are intense, isolated eddies which form to the north of the Gulf Stream from cutoff meanders which detach from the Stream. After their formation they are embedded in the cooler Slope Water which flows generally westward, impinging on the continental slope near 70 W. Observations indicate that the Slope Water flows westward at approximately 5 cm/s. In this study, the effect of background shear flows on anticyclonic eddy motion is examined using a two layer primitive equation model. The effect of various lateral shear profiles is considered for barotropic and equivalent barotropic eddies. Results indicate that eddy zonal propagation is dependent on the eddy initial vertical profile and form of the background shear lateral profile. Eddy meridional speeds are found to be insensitive to background shear profile or strength
author2	Smith, D.C.
author_facet	Smith, D.C. Huddleston, Ray T.
author	Huddleston, Ray T.
spellingShingle	Huddleston, Ray T. A numerical study of eddy steering by background flows
author_sort	Huddleston, Ray T.
title	A numerical study of eddy steering by background flows
title_short	A numerical study of eddy steering by background flows
title_full	A numerical study of eddy steering by background flows
title_fullStr	A numerical study of eddy steering by background flows
title_full_unstemmed	A numerical study of eddy steering by background flows
title_sort	numerical study of eddy steering by background flows
publisher	Monterey, California: Naval Postgraduate School
publishDate	2013
url	http://hdl.handle.net/10945/28412
work_keys_str_mv	AT huddlestonrayt anumericalstudyofeddysteeringbybackgroundflows AT huddlestonrayt numericalstudyofeddysteeringbybackgroundflows
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A numerical study of eddy steering by background flows

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