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    On the Dynamics of the Coupled Mixed Layer-Thermocline System and the Determination of the Oceanic Surface Density

    Source: Journal of Physical Oceanography:;1984:;Volume( 014 ):;issue: 007::page 1159
    Author:
    Pedlosky, Joseph
    ,
    Smith, Wendy
    ,
    Luyten, J. R.
    DOI: 10.1175/1520-0485(1984)014<1159:OTDOTC>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: A simple model of the oceanic mixed layer is coupled to a model of the ventilated thermocline. The model allows a combination of advection and surface heating to determine the position of the outcrop lines of the isopycnals. The resulting isopycnal outcrops determine the circulation in the ventilated thermocline as in the 1983 study by Luyten, Pedlosky and Stommel (LPS). The isopycnal outcrop line is affected by both Ekman wind drift and the surface geostrophic flow. Hence, the outcrop position and the thermocline circulation am coupled. The mixed layer and the thermocline models are extremely simple. Each is modeled by layers of constant density. The mixed layer, in which the isopycnals are vertical, is distinguished by the ability of fluid to cross the interfaces between adjacent layers under the influence of atmospheric heating. The heating is parameterized in terms of the departure of the isopycnal line from the position it would have if the ocean were heated, but at rest. Although in most major respects the thermocline circulation is qualitatively similar to the model of LPS, the effect of the variation of the outcrop latitude with longitude introduces the possibility of potential-vorticity minima along latitude circles. The model also predicts cooling of the most southern portion of the subtropical gyre under the influence of northward Ekman wind drift.
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      On the Dynamics of the Coupled Mixed Layer-Thermocline System and the Determination of the Oceanic Surface Density

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4163646
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    contributor authorPedlosky, Joseph
    contributor authorSmith, Wendy
    contributor authorLuyten, J. R.
    date accessioned2017-06-09T14:47:09Z
    date available2017-06-09T14:47:09Z
    date copyright1984/07/01
    date issued1984
    identifier issn0022-3670
    identifier otherams-26720.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4163646
    description abstractA simple model of the oceanic mixed layer is coupled to a model of the ventilated thermocline. The model allows a combination of advection and surface heating to determine the position of the outcrop lines of the isopycnals. The resulting isopycnal outcrops determine the circulation in the ventilated thermocline as in the 1983 study by Luyten, Pedlosky and Stommel (LPS). The isopycnal outcrop line is affected by both Ekman wind drift and the surface geostrophic flow. Hence, the outcrop position and the thermocline circulation am coupled. The mixed layer and the thermocline models are extremely simple. Each is modeled by layers of constant density. The mixed layer, in which the isopycnals are vertical, is distinguished by the ability of fluid to cross the interfaces between adjacent layers under the influence of atmospheric heating. The heating is parameterized in terms of the departure of the isopycnal line from the position it would have if the ocean were heated, but at rest. Although in most major respects the thermocline circulation is qualitatively similar to the model of LPS, the effect of the variation of the outcrop latitude with longitude introduces the possibility of potential-vorticity minima along latitude circles. The model also predicts cooling of the most southern portion of the subtropical gyre under the influence of northward Ekman wind drift.
    publisherAmerican Meteorological Society
    titleOn the Dynamics of the Coupled Mixed Layer-Thermocline System and the Determination of the Oceanic Surface Density
    typeJournal Paper
    journal volume14
    journal issue7
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1984)014<1159:OTDOTC>2.0.CO;2
    journal fristpage1159
    journal lastpage1171
    treeJournal of Physical Oceanography:;1984:;Volume( 014 ):;issue: 007
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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