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    The Effect of Small-Scale Vertical Mixing of Horizontal Momentum in a General Circulation Model

    Source: Monthly Weather Review:;1974:;volume( 102 ):;issue: 011::page 765
    Author:
    Stone, P. H.
    ,
    Quirk, W. J.
    ,
    Somerville, R. C. J.
    DOI: 10.1175/1520-0493(1974)102<0765:TEOSSV>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Several experiments are described in which the sub-grid-scale vertical eddy viscosity in the GISS global general circulation model was varied. The results show that large viscosities suppress large-scale eddies in middle and high latitudes, but enhance the circulation in the tropical Hadley cell and increase the extent of the tropical easterlies. Comparison with observations shows that the GISS model requires eddy viscosities ?1 m2/s or less to give realistic results for middle and high latitudes, and eddy viscosities ?100 m2/s to give realistic results for low latitudes. A plausible mechanism for the implied increase in small-scale mixing in low latitudes is cumulus convection.
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      The Effect of Small-Scale Vertical Mixing of Horizontal Momentum in a General Circulation Model

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4199186
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    • Monthly Weather Review

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    contributor authorStone, P. H.
    contributor authorQuirk, W. J.
    contributor authorSomerville, R. C. J.
    date accessioned2017-06-09T16:00:40Z
    date available2017-06-09T16:00:40Z
    date copyright1974/11/01
    date issued1974
    identifier issn0027-0644
    identifier otherams-58709.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4199186
    description abstractSeveral experiments are described in which the sub-grid-scale vertical eddy viscosity in the GISS global general circulation model was varied. The results show that large viscosities suppress large-scale eddies in middle and high latitudes, but enhance the circulation in the tropical Hadley cell and increase the extent of the tropical easterlies. Comparison with observations shows that the GISS model requires eddy viscosities ?1 m2/s or less to give realistic results for middle and high latitudes, and eddy viscosities ?100 m2/s to give realistic results for low latitudes. A plausible mechanism for the implied increase in small-scale mixing in low latitudes is cumulus convection.
    publisherAmerican Meteorological Society
    titleThe Effect of Small-Scale Vertical Mixing of Horizontal Momentum in a General Circulation Model
    typeJournal Paper
    journal volume102
    journal issue11
    journal titleMonthly Weather Review
    identifier doi10.1175/1520-0493(1974)102<0765:TEOSSV>2.0.CO;2
    journal fristpage765
    journal lastpage771
    treeMonthly Weather Review:;1974:;volume( 102 ):;issue: 011
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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