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contributor authorBrown, Ellen
contributor authorOwens, W. Brechner
contributor authorBryden, Harry L.
date accessioned2017-06-09T14:47:49Z
date available2017-06-09T14:47:49Z
date copyright1986/03/01
date issued1986
identifier issn0022-3670
identifier otherams-26976.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4163929
description abstractThe local effect of the mesoscale eddy field on the mean potential vorticity distribution of the Gulf Stream recirculation region is determined from the quasi-geostrophic eddy potential vorticity flux. This flux is calculated by finite difference of current and temperature time series from the Local Dynamics Experiment. This long-term array of moorings is the only experimental data from which the complete eddy flux can be calculated. The total eddy flux is dominated by the term due to the time variation in the thickness of isopycnal layers. This thickness flux is an order of magnitude larger than the relative vorticity flux. The total flux is statistically significant and directed 217°T to the southwest with a magnitude of 1.57 ? 10?5 cm s?1. The direction of the eddy flux with respect to the mean large-scale potential vorticity gradient from hydrographic data indicates that eddies in this region tend to reduce the mean potential vorticity gradient.
publisherAmerican Meteorological Society
titleEddy-Potential vorticity Fluxes in the Gulf Stream Recirculation
typeJournal Paper
journal volume16
journal issue3
journal titleJournal of Physical Oceanography
identifier doi10.1175/1520-0485(1986)016<0523:EPVFIT>2.0.CO;2
journal fristpage523
journal lastpage531
treeJournal of Physical Oceanography:;1986:;Volume( 016 ):;issue: 003
contenttypeFulltext


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