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    Sensitivity of a Cloud-Resolving Model to Bulk and Explicit Bin Microphysical Schemes. Part I: Comparisons

    Source: Journal of the Atmospheric Sciences:;2009:;Volume( 066 ):;issue: 001::page 3
    Author:
    Li, Xiaowen
    ,
    Tao, Wei-Kuo
    ,
    Khain, Alexander P.
    ,
    Simpson, Joanne
    ,
    Johnson, Daniel E.
    DOI: 10.1175/2008JAS2646.1
    Publisher: American Meteorological Society
    Abstract: A two-dimensional cloud-resolving model is used to study the sensitivities of two microphysical schemes, a bulk scheme and an explicit spectral bin scheme, in simulating a midlatitude summertime squall line [Preliminary Regional Experiment for Storm-Scale Operational and Research Meteorology (PRE-STORM), 10?11 June 1985]. In this first part of a two-part paper, the developing and mature stages of simulated storms are compared in detail. Some variables observed during the field campaign are also presented for validation. It is found that both schemes agree well with each other, and also with published observations and retrievals, in terms of storm structures and evolution, average storm flow patterns, pressure and temperature perturbations, and total heating profiles. The bin scheme is able to produce a much more extensive and homogeneous stratiform region, which compares better with observations. However, instantaneous fields and high temporal resolution analyses show distinct characteristics in the two simulations. During the mature stage, the bulk simulation produces a multicell storm with convective cells embedded in its stratiform region. Its leading convection also shows a distinct life cycle (strong evolution). In contrast, the bin simulation produces a unicell storm with little temporal variation in its leading cell regeneration (weak evolution). More detailed, high-resolution observations are needed to validate and, perhaps, generalize these model results. Interactions between the cloud microphysics and storm dynamics that produce the sensitivities described here are discussed in detail in Part II of this paper.
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      Sensitivity of a Cloud-Resolving Model to Bulk and Explicit Bin Microphysical Schemes. Part I: Comparisons

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4208172
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    contributor authorLi, Xiaowen
    contributor authorTao, Wei-Kuo
    contributor authorKhain, Alexander P.
    contributor authorSimpson, Joanne
    contributor authorJohnson, Daniel E.
    date accessioned2017-06-09T16:22:48Z
    date available2017-06-09T16:22:48Z
    date copyright2009/01/01
    date issued2009
    identifier issn0022-4928
    identifier otherams-66797.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4208172
    description abstractA two-dimensional cloud-resolving model is used to study the sensitivities of two microphysical schemes, a bulk scheme and an explicit spectral bin scheme, in simulating a midlatitude summertime squall line [Preliminary Regional Experiment for Storm-Scale Operational and Research Meteorology (PRE-STORM), 10?11 June 1985]. In this first part of a two-part paper, the developing and mature stages of simulated storms are compared in detail. Some variables observed during the field campaign are also presented for validation. It is found that both schemes agree well with each other, and also with published observations and retrievals, in terms of storm structures and evolution, average storm flow patterns, pressure and temperature perturbations, and total heating profiles. The bin scheme is able to produce a much more extensive and homogeneous stratiform region, which compares better with observations. However, instantaneous fields and high temporal resolution analyses show distinct characteristics in the two simulations. During the mature stage, the bulk simulation produces a multicell storm with convective cells embedded in its stratiform region. Its leading convection also shows a distinct life cycle (strong evolution). In contrast, the bin simulation produces a unicell storm with little temporal variation in its leading cell regeneration (weak evolution). More detailed, high-resolution observations are needed to validate and, perhaps, generalize these model results. Interactions between the cloud microphysics and storm dynamics that produce the sensitivities described here are discussed in detail in Part II of this paper.
    publisherAmerican Meteorological Society
    titleSensitivity of a Cloud-Resolving Model to Bulk and Explicit Bin Microphysical Schemes. Part I: Comparisons
    typeJournal Paper
    journal volume66
    journal issue1
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/2008JAS2646.1
    journal fristpage3
    journal lastpage21
    treeJournal of the Atmospheric Sciences:;2009:;Volume( 066 ):;issue: 001
    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