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    A Comparative Study of Various Parameterizations of the Planetary Boundary Layer in a Numerical Mesoscale Model

    Source: Journal of Climate and Applied Meteorology:;1987:;Volume( 026 ):;Issue: 012::page 1671
    Author:
    Mahfouf, J. F.
    ,
    Richard, E.
    ,
    Mascart, P.
    ,
    Nickerson, E. C.
    ,
    Rosset, R.
    DOI: 10.1175/1520-0450(1987)026<1671:ACSOVP>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Various parameterizations of the planetary boundary layer (PBL) currently used in three-dimensional (3D) mesoscale models are compared with a more complex scheme including a turbulent kinetic energy (TKE) equation. In the first set of simulations made with a ID model against the classical Wangara data, the mean wind, temperature and moisture calculated in the PBL are nearly insensitive to the choice of the parameterization. In the second set of simulations, the TKE parameterization is used in a 3D mesoscale model to simulate sea breeze flows over south Florida. A comparison is presented with previous simulations of Pielke, and Pielke and Mahrer, for the mean flow, and with the third-order turbulence closure model of Brière for the turbulent variables, including a discussion of the turbulent energy budget, The analysis of the results obtained with the TKE scheme shows that the predicted turbulent fields are qualitatively realistic and interact significantly with the sea breeze circulation. Finally, a comparison is made between the TKE scheme and the simpler parameterization of Pielke and Mahrer. It shows only slight differences as far as the mesoscale structure of the mean variables is concerned.
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      A Comparative Study of Various Parameterizations of the Planetary Boundary Layer in a Numerical Mesoscale Model

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4146478
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    contributor authorMahfouf, J. F.
    contributor authorRichard, E.
    contributor authorMascart, P.
    contributor authorNickerson, E. C.
    contributor authorRosset, R.
    date accessioned2017-06-09T14:02:05Z
    date available2017-06-09T14:02:05Z
    date copyright1987/12/01
    date issued1987
    identifier issn0733-3021
    identifier otherams-11269.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4146478
    description abstractVarious parameterizations of the planetary boundary layer (PBL) currently used in three-dimensional (3D) mesoscale models are compared with a more complex scheme including a turbulent kinetic energy (TKE) equation. In the first set of simulations made with a ID model against the classical Wangara data, the mean wind, temperature and moisture calculated in the PBL are nearly insensitive to the choice of the parameterization. In the second set of simulations, the TKE parameterization is used in a 3D mesoscale model to simulate sea breeze flows over south Florida. A comparison is presented with previous simulations of Pielke, and Pielke and Mahrer, for the mean flow, and with the third-order turbulence closure model of Brière for the turbulent variables, including a discussion of the turbulent energy budget, The analysis of the results obtained with the TKE scheme shows that the predicted turbulent fields are qualitatively realistic and interact significantly with the sea breeze circulation. Finally, a comparison is made between the TKE scheme and the simpler parameterization of Pielke and Mahrer. It shows only slight differences as far as the mesoscale structure of the mean variables is concerned.
    publisherAmerican Meteorological Society
    titleA Comparative Study of Various Parameterizations of the Planetary Boundary Layer in a Numerical Mesoscale Model
    typeJournal Paper
    journal volume26
    journal issue12
    journal titleJournal of Climate and Applied Meteorology
    identifier doi10.1175/1520-0450(1987)026<1671:ACSOVP>2.0.CO;2
    journal fristpage1671
    journal lastpage1695
    treeJournal of Climate and Applied Meteorology:;1987:;Volume( 026 ):;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
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