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    Regional Flux Estimation in a Convective Boundary Layer Using a Conservation Approach

    Source: Journal of Hydrometeorology:;2000:;Volume( 001 ):;issue: 002::page 170
    Author:
    Peters-Lidard, Christa D.
    ,
    Davis, Luke H.
    DOI: 10.1175/1525-7541(2000)001<0170:RFEIAC>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: During the Southern Great Plains 1997 Hydrology Experiment, a tethersonde system was deployed at the U.S. Department of Energy?s Atmospheric Radiation Measurement Cloud and Radiation Test Bed (ARM CART) central facility. Additional measurements included several surface flux stations at the central facility and radiosondes at the ARM CART central and boundary facilities. Combined, these data support an examination of regional flux estimates obtained via the atmospheric boundary layer conservation approach. Because the tethersonde was deployed successfully only under light to moderate wind conditions, the effects of advection on estimation of regional fluxes generally are found to be small. Consistent with previous studies, direct estimation of the sensible heat flux yields more accuracy than direct estimation of the latent heat flux. Use of available energy measured at surface flux stations along with the direct sensible heat flux estimates yields latent heat estimates of similar accuracy to those obtained for the sensible heat flux. It is observed that variability in the entrainment parameter exhibits a considerable diurnal cycle, presumably related to the interplay between buoyant and shear production of turbulent kinetic energy near the entrainment zone.
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      Regional Flux Estimation in a Convective Boundary Layer Using a Conservation Approach

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4206119
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    contributor authorPeters-Lidard, Christa D.
    contributor authorDavis, Luke H.
    date accessioned2017-06-09T16:17:01Z
    date available2017-06-09T16:17:01Z
    date copyright2000/04/01
    date issued2000
    identifier issn1525-755X
    identifier otherams-64949.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4206119
    description abstractDuring the Southern Great Plains 1997 Hydrology Experiment, a tethersonde system was deployed at the U.S. Department of Energy?s Atmospheric Radiation Measurement Cloud and Radiation Test Bed (ARM CART) central facility. Additional measurements included several surface flux stations at the central facility and radiosondes at the ARM CART central and boundary facilities. Combined, these data support an examination of regional flux estimates obtained via the atmospheric boundary layer conservation approach. Because the tethersonde was deployed successfully only under light to moderate wind conditions, the effects of advection on estimation of regional fluxes generally are found to be small. Consistent with previous studies, direct estimation of the sensible heat flux yields more accuracy than direct estimation of the latent heat flux. Use of available energy measured at surface flux stations along with the direct sensible heat flux estimates yields latent heat estimates of similar accuracy to those obtained for the sensible heat flux. It is observed that variability in the entrainment parameter exhibits a considerable diurnal cycle, presumably related to the interplay between buoyant and shear production of turbulent kinetic energy near the entrainment zone.
    publisherAmerican Meteorological Society
    titleRegional Flux Estimation in a Convective Boundary Layer Using a Conservation Approach
    typeJournal Paper
    journal volume1
    journal issue2
    journal titleJournal of Hydrometeorology
    identifier doi10.1175/1525-7541(2000)001<0170:RFEIAC>2.0.CO;2
    journal fristpage170
    journal lastpage182
    treeJournal of Hydrometeorology:;2000:;Volume( 001 ):;issue: 002
    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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