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    Mean Circulation of the Hamburg LSG OGCM and Its Sensitivity to the Thermohaline Surface Forcing

    Source: Journal of Physical Oceanography:;1993:;Volume( 023 ):;issue: 004::page 731
    Author:
    Maier-Reimer, Ernst
    ,
    Mikolajewicz, Uwe
    ,
    Hasselmann, Klaus
    DOI: 10.1175/1520-0485(1993)023<0731:MCOTHL>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The sensitivity of the global ocean circulation to changes in surface heat flux forcing is studied using the Hamburg Large Scale Geostrophic (LSG) ocean circulation model. The simulated mean ocean circulation for appropriately chosen surface forcing fields reproduces the principal water mass properties, residence times, and large-scale transport properties of the observed ocean circulation quite realistically within the constraints of the model resolution. However, rather minor changes in the formulation of the high-latitude air?sea heat flux can produce dramatic changes in the structure of the ocean circulation. These strongly affect the deep-ocean overturning rates and residence times, the oceanic heat transport, and the rate of oceanic uptake of CO2. The sensitivity is largely controlled by the mechanism of deep-water formation in high latitudes. The experiments support similar findings by other authors on the sensitivity of the ocean circulation to changes in the fresh-water flux and are consistent with the existence of multiequilibria circulation states with a relatively low transition threshold.
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      Mean Circulation of the Hamburg LSG OGCM and Its Sensitivity to the Thermohaline Surface Forcing

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4165076
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    contributor authorMaier-Reimer, Ernst
    contributor authorMikolajewicz, Uwe
    contributor authorHasselmann, Klaus
    date accessioned2017-06-09T14:50:38Z
    date available2017-06-09T14:50:38Z
    date copyright1993/04/01
    date issued1993
    identifier issn0022-3670
    identifier otherams-28007.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4165076
    description abstractThe sensitivity of the global ocean circulation to changes in surface heat flux forcing is studied using the Hamburg Large Scale Geostrophic (LSG) ocean circulation model. The simulated mean ocean circulation for appropriately chosen surface forcing fields reproduces the principal water mass properties, residence times, and large-scale transport properties of the observed ocean circulation quite realistically within the constraints of the model resolution. However, rather minor changes in the formulation of the high-latitude air?sea heat flux can produce dramatic changes in the structure of the ocean circulation. These strongly affect the deep-ocean overturning rates and residence times, the oceanic heat transport, and the rate of oceanic uptake of CO2. The sensitivity is largely controlled by the mechanism of deep-water formation in high latitudes. The experiments support similar findings by other authors on the sensitivity of the ocean circulation to changes in the fresh-water flux and are consistent with the existence of multiequilibria circulation states with a relatively low transition threshold.
    publisherAmerican Meteorological Society
    titleMean Circulation of the Hamburg LSG OGCM and Its Sensitivity to the Thermohaline Surface Forcing
    typeJournal Paper
    journal volume23
    journal issue4
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1993)023<0731:MCOTHL>2.0.CO;2
    journal fristpage731
    journal lastpage757
    treeJournal of Physical Oceanography:;1993:;Volume( 023 ):;issue: 004
    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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