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    An Example of Eddy-Induced Ocean Circulation

    Source: Journal of Physical Oceanography:;1980:;Volume( 010 ):;issue: 007::page 1010
    Author:
    Holland, William R.
    ,
    Rhines, Peter B.
    DOI: 10.1175/1520-0485(1980)010<1010:AEOEIO>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Gyre scale and local vorticity balances are examined for a single numerical experiment designed to elucidate the role of eddies in the oceanic general circulation. Due to the complex nature of the flow, a combination of different analyses is needed. In particular the mean potential vorticity fields are calculated and related to local and global vorticity fluxes. The nature of eddy generation and decay is discussed in terms of eddy enstrophy balances in the fluid. Momentum balances in various parts of the gyre are deduced through the application of the circulation theorem. Fields of eddy diffusivity for the mixing of potential vorticity and heat are determined. The applicability of Sverdrup dynamics in various parts of the fluid and the manner in which the deep abyssal gyres are driven are examined. The net picture is a complex but consistent one. In the upper layer, eddy generation occurs in the separation region of the eastward jet and in the region of westward return flow. Eddy decay occurs principally at the eastern end of the free jet accompanied by upgradient eddy fluxes of heat and potential vorticity. The lower layer is driven from above by inviscid pressure forcing at the interface., this is accompanied by downgradient potential vorticity flux everywhere in the lower layer. The deep dynamics is essentially a ?turbulent? Sverdrup balance, ?3·? Q?3= ?·? ?Q?3, driven by eddy rather than wind stresses.
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      An Example of Eddy-Induced Ocean Circulation

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    contributor authorHolland, William R.
    contributor authorRhines, Peter B.
    date accessioned2017-06-09T14:45:30Z
    date available2017-06-09T14:45:30Z
    date copyright1980/07/01
    date issued1980
    identifier issn0022-3670
    identifier otherams-26092.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4162948
    description abstractGyre scale and local vorticity balances are examined for a single numerical experiment designed to elucidate the role of eddies in the oceanic general circulation. Due to the complex nature of the flow, a combination of different analyses is needed. In particular the mean potential vorticity fields are calculated and related to local and global vorticity fluxes. The nature of eddy generation and decay is discussed in terms of eddy enstrophy balances in the fluid. Momentum balances in various parts of the gyre are deduced through the application of the circulation theorem. Fields of eddy diffusivity for the mixing of potential vorticity and heat are determined. The applicability of Sverdrup dynamics in various parts of the fluid and the manner in which the deep abyssal gyres are driven are examined. The net picture is a complex but consistent one. In the upper layer, eddy generation occurs in the separation region of the eastward jet and in the region of westward return flow. Eddy decay occurs principally at the eastern end of the free jet accompanied by upgradient eddy fluxes of heat and potential vorticity. The lower layer is driven from above by inviscid pressure forcing at the interface., this is accompanied by downgradient potential vorticity flux everywhere in the lower layer. The deep dynamics is essentially a ?turbulent? Sverdrup balance, ?3·? Q?3= ?·? ?Q?3, driven by eddy rather than wind stresses.
    publisherAmerican Meteorological Society
    titleAn Example of Eddy-Induced Ocean Circulation
    typeJournal Paper
    journal volume10
    journal issue7
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1980)010<1010:AEOEIO>2.0.CO;2
    journal fristpage1010
    journal lastpage1031
    treeJournal of Physical Oceanography:;1980:;Volume( 010 ):;issue: 007
    contenttypeFulltext
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    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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