YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Journal of Hydrometeorology
    • View Item
    •   YE&T Library
    • AMS
    • Journal of Hydrometeorology
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Sensitivity of Simulated Regional Surface Thermal Fluxes during Warm Advection Snowmelt to Selection of the Lowest Model Level Height

    Source: Journal of Hydrometeorology:;2001:;Volume( 002 ):;issue: 004::page 395
    Author:
    Wei, H.
    ,
    Segal, M.
    ,
    Gutowski, W. J.
    ,
    Pan, Z.
    ,
    Arritt, R. W.
    ,
    Gallus, W. A.
    DOI: 10.1175/1525-7541(2001)002<0395:SOSRST>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Under strong warm advection, sensible and latent heat fluxes may provide larger energy for surface snowmelt than does net radiation flux. With these thermally stable conditions, the height of the first model level may be well above the surface-layer depth and thus outside the range of applicability of the surface-layer similarity theory on which the models' surface thermal flux computation is based. This situation can strongly affect the magnitude of simulated surface thermal fluxes and snowmelt. To explore this issue, the impact of selected heights of the first model level on the simulated surface fluxes and snowmelt under stable surface stratification conditions was investigated. Simulations using a mesoscale atmospheric model considering two extreme contrasts in surface roughness were performed. Setting the first model level to 3 or 10 m, which typically was within the stable surface layer, yielded nearly the same contribution of simulated surface turbulent thermal fluxes to snowmelt. When the first model level height was set at about 40 m, as is used in many regional model simulations, it exceeded the depth of the stable surface layer over the snow cover. The surface turbulent thermal flux contribution in this case was smaller (by about 40%), with a directly proportional effect on the snowmelt. Pending observational support, results presented in this study imply that setting a model's lowest level to 10 m or less will likely improve simulated snowmelt accuracy during warm advection.
    • Download: (1.595Mb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Sensitivity of Simulated Regional Surface Thermal Fluxes during Warm Advection Snowmelt to Selection of the Lowest Model Level Height

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4206174
    Collections
    • Journal of Hydrometeorology

    Show full item record

    contributor authorWei, H.
    contributor authorSegal, M.
    contributor authorGutowski, W. J.
    contributor authorPan, Z.
    contributor authorArritt, R. W.
    contributor authorGallus, W. A.
    date accessioned2017-06-09T16:17:09Z
    date available2017-06-09T16:17:09Z
    date copyright2001/08/01
    date issued2001
    identifier issn1525-755X
    identifier otherams-64999.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4206174
    description abstractUnder strong warm advection, sensible and latent heat fluxes may provide larger energy for surface snowmelt than does net radiation flux. With these thermally stable conditions, the height of the first model level may be well above the surface-layer depth and thus outside the range of applicability of the surface-layer similarity theory on which the models' surface thermal flux computation is based. This situation can strongly affect the magnitude of simulated surface thermal fluxes and snowmelt. To explore this issue, the impact of selected heights of the first model level on the simulated surface fluxes and snowmelt under stable surface stratification conditions was investigated. Simulations using a mesoscale atmospheric model considering two extreme contrasts in surface roughness were performed. Setting the first model level to 3 or 10 m, which typically was within the stable surface layer, yielded nearly the same contribution of simulated surface turbulent thermal fluxes to snowmelt. When the first model level height was set at about 40 m, as is used in many regional model simulations, it exceeded the depth of the stable surface layer over the snow cover. The surface turbulent thermal flux contribution in this case was smaller (by about 40%), with a directly proportional effect on the snowmelt. Pending observational support, results presented in this study imply that setting a model's lowest level to 10 m or less will likely improve simulated snowmelt accuracy during warm advection.
    publisherAmerican Meteorological Society
    titleSensitivity of Simulated Regional Surface Thermal Fluxes during Warm Advection Snowmelt to Selection of the Lowest Model Level Height
    typeJournal Paper
    journal volume2
    journal issue4
    journal titleJournal of Hydrometeorology
    identifier doi10.1175/1525-7541(2001)002<0395:SOSRST>2.0.CO;2
    journal fristpage395
    journal lastpage405
    treeJournal of Hydrometeorology:;2001:;Volume( 002 ):;issue: 004
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian