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    Retrieval of Model Grid-Scale Heat Capacity Using Geostationary Satellite Products. Part I: First Case-Study Application

    Source: Journal of Applied Meteorology:;2005:;volume( 044 ):;issue: 009::page 1346
    Author:
    McNider, Richard T.
    ,
    Lapenta, William M.
    ,
    Biazar, Arastoo P.
    ,
    Jedlovec, Gary J.
    ,
    Suggs, Ronnie J.
    ,
    Pleim, Jonathan
    DOI: 10.1175/JAM2270.1
    Publisher: American Meteorological Society
    Abstract: In weather forecast and general circulation models the behavior of the atmospheric boundary layer, especially the nocturnal boundary layer, can be critically dependent on the magnitude of the effective model grid-scale bulk heat capacity. Yet, this model parameter is uncertain both in its value and in its conceptual meaning for a model grid in heterogeneous conditions. Current methods for estimating the grid-scale heat capacity involve the areal/volume weighting of heat capacity (resistance) of various, often ill-defined, components. This can lead to errors in model performance in certain parameter spaces. Here, a technique is proposed and tested for recovering bulk heat capacity using time tendencies in satellite-retrieved surface skin temperature (SST). The technique builds upon sensitivity studies that show that surface temperature is most sensitive to thermal inertia in the early evening hours. The retrievals are made within the context of a surface energy budget in a regional-scale model [the fifth-generation Pennsylvania State University?National Center for Atmospheric Research Mesoscale Model (MM5)]. The retrieved heat capacities are used in the forecast model, and it is shown that the model predictions of temperature are improved in the nighttime during the forecast periods.
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      Retrieval of Model Grid-Scale Heat Capacity Using Geostationary Satellite Products. Part I: First Case-Study Application

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4216405
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    • Journal of Applied Meteorology

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    contributor authorMcNider, Richard T.
    contributor authorLapenta, William M.
    contributor authorBiazar, Arastoo P.
    contributor authorJedlovec, Gary J.
    contributor authorSuggs, Ronnie J.
    contributor authorPleim, Jonathan
    date accessioned2017-06-09T16:47:36Z
    date available2017-06-09T16:47:36Z
    date copyright2005/09/01
    date issued2005
    identifier issn0894-8763
    identifier otherams-74205.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4216405
    description abstractIn weather forecast and general circulation models the behavior of the atmospheric boundary layer, especially the nocturnal boundary layer, can be critically dependent on the magnitude of the effective model grid-scale bulk heat capacity. Yet, this model parameter is uncertain both in its value and in its conceptual meaning for a model grid in heterogeneous conditions. Current methods for estimating the grid-scale heat capacity involve the areal/volume weighting of heat capacity (resistance) of various, often ill-defined, components. This can lead to errors in model performance in certain parameter spaces. Here, a technique is proposed and tested for recovering bulk heat capacity using time tendencies in satellite-retrieved surface skin temperature (SST). The technique builds upon sensitivity studies that show that surface temperature is most sensitive to thermal inertia in the early evening hours. The retrievals are made within the context of a surface energy budget in a regional-scale model [the fifth-generation Pennsylvania State University?National Center for Atmospheric Research Mesoscale Model (MM5)]. The retrieved heat capacities are used in the forecast model, and it is shown that the model predictions of temperature are improved in the nighttime during the forecast periods.
    publisherAmerican Meteorological Society
    titleRetrieval of Model Grid-Scale Heat Capacity Using Geostationary Satellite Products. Part I: First Case-Study Application
    typeJournal Paper
    journal volume44
    journal issue9
    journal titleJournal of Applied Meteorology
    identifier doi10.1175/JAM2270.1
    journal fristpage1346
    journal lastpage1360
    treeJournal of Applied Meteorology:;2005:;volume( 044 ):;issue: 009
    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