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    Entrainment in Cumulus Clouds: What Resolution is Cloud-Resolving?

    Source: Journal of the Atmospheric Sciences:;2008:;Volume( 065 ):;issue: 012::page 3978
    Author:
    Craig, George C.
    ,
    Dörnbrack, Andreas
    DOI: 10.1175/2008JAS2613.1
    Publisher: American Meteorological Society
    Abstract: Systematic numerical experiments were conducted to determine the spatial resolution required to resolve a moist thermal show convergence at a scale proportional to the smaller of the initial thermal diameter D0 and a buoyancy length scale Lbuoy. The buoyancy length scale Lbuoy = ?T0/?Γ (?T0 is the initial buoyancy excess of the thermal and ?Γ is the ambient stratification) describes the maximum vertical displacement that can be induced against the stratification in the environment by buoyancy-driven pressure perturbations in the cloud and, thus, the maximum scale of eddies that cross the cloud boundary. For typical atmospheric conditions in which the cloud size D0 is larger than Lbuoy, numerical simulations of the mixing processes in cumulus clouds must resolve Lbuoy.
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      Entrainment in Cumulus Clouds: What Resolution is Cloud-Resolving?

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4208154
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    contributor authorCraig, George C.
    contributor authorDörnbrack, Andreas
    date accessioned2017-06-09T16:22:45Z
    date available2017-06-09T16:22:45Z
    date copyright2008/12/01
    date issued2008
    identifier issn0022-4928
    identifier otherams-66781.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4208154
    description abstractSystematic numerical experiments were conducted to determine the spatial resolution required to resolve a moist thermal show convergence at a scale proportional to the smaller of the initial thermal diameter D0 and a buoyancy length scale Lbuoy. The buoyancy length scale Lbuoy = ?T0/?Γ (?T0 is the initial buoyancy excess of the thermal and ?Γ is the ambient stratification) describes the maximum vertical displacement that can be induced against the stratification in the environment by buoyancy-driven pressure perturbations in the cloud and, thus, the maximum scale of eddies that cross the cloud boundary. For typical atmospheric conditions in which the cloud size D0 is larger than Lbuoy, numerical simulations of the mixing processes in cumulus clouds must resolve Lbuoy.
    publisherAmerican Meteorological Society
    titleEntrainment in Cumulus Clouds: What Resolution is Cloud-Resolving?
    typeJournal Paper
    journal volume65
    journal issue12
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/2008JAS2613.1
    journal fristpage3978
    journal lastpage3988
    treeJournal of the Atmospheric Sciences:;2008:;Volume( 065 ):;issue: 012
    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
    yabeshDSpacePersian