Ocean eddy momentum fluxes at the latitudes of the Gulf Stream and the Kuroshio extensions as revealed by satellite data

Eddy momentum fluxes, i.e. Reynold stresses, are computed for the latitude bands of the Gulf Stream and Kuroshio extensions using 13 years of data from the merged satellite altimeter product of Le Traon et al. The spatial pattern and amplitude of the fluxes is remarkably similar to that found by Duc...

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Published in:Ocean Dynamics
Main Authors: Greatbatch, R, Kohlmann, J, Czeschel, L, Zhai, X
Format: Article in Journal/Newspaper
Language:unknown
Published: 2016
Subjects:
Online Access:https://doi.org/10.1007/s10236-010-0282-6
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spelling ftuloxford:oai:ora.ox.ac.uk:uuid:18b17a3c-e39e-4110-a1a4-54d2002be494 2024-10-06T13:51:12+00:00 Ocean eddy momentum fluxes at the latitudes of the Gulf Stream and the Kuroshio extensions as revealed by satellite data Greatbatch, R Kohlmann, J Czeschel, L Zhai, X 2016-07-28 https://doi.org/10.1007/s10236-010-0282-6 https://ora.ox.ac.uk/objects/uuid:18b17a3c-e39e-4110-a1a4-54d2002be494 unknown doi:10.1007/s10236-010-0282-6 https://ora.ox.ac.uk/objects/uuid:18b17a3c-e39e-4110-a1a4-54d2002be494 https://doi.org/10.1007/s10236-010-0282-6 info:eu-repo/semantics/embargoedAccess Journal article 2016 ftuloxford https://doi.org/10.1007/s10236-010-0282-6 2024-09-06T07:47:28Z Eddy momentum fluxes, i.e. Reynold stresses, are computed for the latitude bands of the Gulf Stream and Kuroshio extensions using 13 years of data from the merged satellite altimeter product of Le Traon et al. The spatial pattern and amplitude of the fluxes is remarkably similar to that found by Ducet and Le Traon using the 5 years of data that were available to them. In addition to updating the work of Ducet and Le Traon, we provide new insight into the role played by the underlying variable bottom topography, both for determining the structure of the eddy momentum fluxes seen in the satellite data and for influencing the way these fluxes feedback on the mean flow. While there is no clear evidence that eddies locally flux momentum into the eastward jets of the Gulf Stream and Kuroshio extensions, a clearer picture emerges after zonally integrating across each of the North Atlantic and North Pacific basins. We argue that the eddy momentum fluxes do indeed drive significant transport, a conclusion supported by preliminary results from a 3-D model calculation. We also present evidence that in the North Pacific, the Reynolds stresses are important for driving the recirculation gyres associated with the Kuroshio extension, taking advantage of new data from both observations and high-resolution model simulations. © 2010 Springer-Verlag. Article in Journal/Newspaper North Atlantic ORA - Oxford University Research Archive Pacific Ocean Dynamics 60 3 617 628
institution Open Polar
collection ORA - Oxford University Research Archive
op_collection_id ftuloxford
language unknown
description Eddy momentum fluxes, i.e. Reynold stresses, are computed for the latitude bands of the Gulf Stream and Kuroshio extensions using 13 years of data from the merged satellite altimeter product of Le Traon et al. The spatial pattern and amplitude of the fluxes is remarkably similar to that found by Ducet and Le Traon using the 5 years of data that were available to them. In addition to updating the work of Ducet and Le Traon, we provide new insight into the role played by the underlying variable bottom topography, both for determining the structure of the eddy momentum fluxes seen in the satellite data and for influencing the way these fluxes feedback on the mean flow. While there is no clear evidence that eddies locally flux momentum into the eastward jets of the Gulf Stream and Kuroshio extensions, a clearer picture emerges after zonally integrating across each of the North Atlantic and North Pacific basins. We argue that the eddy momentum fluxes do indeed drive significant transport, a conclusion supported by preliminary results from a 3-D model calculation. We also present evidence that in the North Pacific, the Reynolds stresses are important for driving the recirculation gyres associated with the Kuroshio extension, taking advantage of new data from both observations and high-resolution model simulations. © 2010 Springer-Verlag.
format Article in Journal/Newspaper
author Greatbatch, R
Kohlmann, J
Czeschel, L
Zhai, X
spellingShingle Greatbatch, R
Kohlmann, J
Czeschel, L
Zhai, X
Ocean eddy momentum fluxes at the latitudes of the Gulf Stream and the Kuroshio extensions as revealed by satellite data
author_facet Greatbatch, R
Kohlmann, J
Czeschel, L
Zhai, X
author_sort Greatbatch, R
title Ocean eddy momentum fluxes at the latitudes of the Gulf Stream and the Kuroshio extensions as revealed by satellite data
title_short Ocean eddy momentum fluxes at the latitudes of the Gulf Stream and the Kuroshio extensions as revealed by satellite data
title_full Ocean eddy momentum fluxes at the latitudes of the Gulf Stream and the Kuroshio extensions as revealed by satellite data
title_fullStr Ocean eddy momentum fluxes at the latitudes of the Gulf Stream and the Kuroshio extensions as revealed by satellite data
title_full_unstemmed Ocean eddy momentum fluxes at the latitudes of the Gulf Stream and the Kuroshio extensions as revealed by satellite data
title_sort ocean eddy momentum fluxes at the latitudes of the gulf stream and the kuroshio extensions as revealed by satellite data
publishDate 2016
url https://doi.org/10.1007/s10236-010-0282-6
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geographic Pacific
geographic_facet Pacific
genre North Atlantic
genre_facet North Atlantic
op_relation doi:10.1007/s10236-010-0282-6
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https://doi.org/10.1007/s10236-010-0282-6
op_rights info:eu-repo/semantics/embargoedAccess
op_doi https://doi.org/10.1007/s10236-010-0282-6
container_title Ocean Dynamics
container_volume 60
container_issue 3
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