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dc.contributor.authorQiu, Bo
dc.contributor.authorChen, Shuiming
dc.contributor.authorHacker, Peter
dc.contributor.authorHogg, Nelson G.
dc.contributor.authorJayne, Steven R.
dc.contributor.authorSasaki, Hideharu
dc.date.accessioned2010-11-04T15:57:21Z
dc.date.available2010-11-04T15:57:21Z
dc.date.issued2008-08
dc.identifier.citationJournal of Physical Oceanography 38 (2008): 1764-1779en_US
dc.identifier.urihttp://hdl.handle.net/1912/4063
dc.descriptionAuthor Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 38 (2008): 1764-1779, doi:10.1175/2008JPO3921.1.en_US
dc.description.abstractMiddepth, time-mean circulation in the western North Pacific Ocean (28°–45°N, 140°–165°E) is investigated using drift information from the profiling floats deployed in the Kuroshio Extension System Study (KESS) and the International Argo programs. A well-defined, cyclonic recirculation gyre (RG) is found to exist north of the Kuroshio Extension jet, confined zonally between the Japan Trench (145°E) and the Shatsky Rise (156°E), and bordered to the north by the subarctic boundary along 40°N. This northern RG, which is simulated favorably in the eddy-resolving OGCM for the Earth Simulator (OFES) hindcast run model, has a maximum volume transport at 26.4 Sv across 159°E and its presence persists on the interannual and longer time scales. An examination of the time-mean x-momentum balance from the OFES hindcast run output reveals that horizontal convergence of Reynolds stresses works to accelerate both the eastward-flowing Kuroshio Extension jet and a westward mean flow north of the meandering jet. The fact that the northern RG is eddy driven is further confirmed by examining the turbulent Sverdrup balance, in which convergent eddy potential vorticity fluxes are found to induce the cyclonic RG across the background potential vorticity gradient field. For the strength of the simulated northern RG, the authors find the eddy dissipation effect to be important as well.en_US
dc.description.sponsorshipThis study was supported by NSF through Grant OCE-0220680 (UH) and OCE-0220161 (WHOI).en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Meteorological Societyen_US
dc.relation.urihttp://dx.doi.org/10.1175/2008JPO3921.1
dc.subjectGyresen_US
dc.subjectOcean circulationen_US
dc.subjectProfilersen_US
dc.subjectJetsen_US
dc.subjectTransporten_US
dc.titleThe Kuroshio Extension northern recirculation gyre : profiling float measurements and forcing mechanismen_US
dc.typeArticleen_US
dc.identifier.doi10.1175/2008JPO3921.1


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