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    Prospects of the WSR-88D Radar for Cloud Studies

    Source: Journal of Applied Meteorology and Climatology:;2010:;volume( 050 ):;issue: 004::page 859
    Author:
    Melnikov, Valery M.
    ,
    Zrnić, Dusan S.
    ,
    Doviak, Richard J.
    ,
    Chilson, Phillip B.
    ,
    Mechem, David B.
    ,
    Kogan, Yefim L.
    DOI: 10.1175/2010JAMC2303.1
    Publisher: American Meteorological Society
    Abstract: ounding of nonprecipitating clouds with the 10-cm wavelength Weather Surveillance Radar-1988 Doppler (WSR-88D) is discussed. Readily available enhancements to signal processing and volume coverage patterns of the WSR-88D allow observations of a variety of clouds with reflectivities as low as ?25 dBZ (at a range of 10 km). The high sensitivity of the WSR-88D, its wide velocity and unambiguous range intervals, and the absence of attenuation allow accurate measurements of the reflectivity factor, Doppler velocity, and spectrum width fields in clouds to ranges of about 50 km. Fields of polarimetric variables in clouds, observed with a research polarimetric WSR-88D, demonstrate an abundance of information and help to resolve Bragg and particulate scatter. The scanning, Doppler, and polarimetric capabilities of the WSR-88D allow real-time, three-dimensional mapping of cloud processes, such as transformations of hydrometeors between liquid and ice phases. The presence of ice particles is revealed by high differential reflectivities and the lack of correlation between reflectivity and differential reflectivity in clouds in contrast to that found for rain. Pockets of high differential reflectivities are frequently observed in clouds; maximal values of differential reflectivity exceed 8 dB, far above the level observed in rain. The establishment of the WSR-88D network consisting of 157 polarimetric radars can be used to collect cloud data at any radar site, making the network a potentially powerful tool for climatic studies.
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      Prospects of the WSR-88D Radar for Cloud Studies

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4211711
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    • Journal of Applied Meteorology and Climatology

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    contributor authorMelnikov, Valery M.
    contributor authorZrnić, Dusan S.
    contributor authorDoviak, Richard J.
    contributor authorChilson, Phillip B.
    contributor authorMechem, David B.
    contributor authorKogan, Yefim L.
    date accessioned2017-06-09T16:33:35Z
    date available2017-06-09T16:33:35Z
    date copyright2011/04/01
    date issued2010
    identifier issn1558-8424
    identifier otherams-69982.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4211711
    description abstractounding of nonprecipitating clouds with the 10-cm wavelength Weather Surveillance Radar-1988 Doppler (WSR-88D) is discussed. Readily available enhancements to signal processing and volume coverage patterns of the WSR-88D allow observations of a variety of clouds with reflectivities as low as ?25 dBZ (at a range of 10 km). The high sensitivity of the WSR-88D, its wide velocity and unambiguous range intervals, and the absence of attenuation allow accurate measurements of the reflectivity factor, Doppler velocity, and spectrum width fields in clouds to ranges of about 50 km. Fields of polarimetric variables in clouds, observed with a research polarimetric WSR-88D, demonstrate an abundance of information and help to resolve Bragg and particulate scatter. The scanning, Doppler, and polarimetric capabilities of the WSR-88D allow real-time, three-dimensional mapping of cloud processes, such as transformations of hydrometeors between liquid and ice phases. The presence of ice particles is revealed by high differential reflectivities and the lack of correlation between reflectivity and differential reflectivity in clouds in contrast to that found for rain. Pockets of high differential reflectivities are frequently observed in clouds; maximal values of differential reflectivity exceed 8 dB, far above the level observed in rain. The establishment of the WSR-88D network consisting of 157 polarimetric radars can be used to collect cloud data at any radar site, making the network a potentially powerful tool for climatic studies.
    publisherAmerican Meteorological Society
    titleProspects of the WSR-88D Radar for Cloud Studies
    typeJournal Paper
    journal volume50
    journal issue4
    journal titleJournal of Applied Meteorology and Climatology
    identifier doi10.1175/2010JAMC2303.1
    journal fristpage859
    journal lastpage872
    treeJournal of Applied Meteorology and Climatology:;2010:;volume( 050 ):;issue: 004
    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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