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    Observing Precipitation through Dual-Polarization Radar Measurements

    Source: Bulletin of the American Meteorological Society:;1992:;volume( 073 ):;issue: 009::page 1365
    Author:
    Herzegh, Paul H.
    ,
    Jameson, Arthur R.
    DOI: 10.1175/1520-0477(1992)073<1365:OPTDPR>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Dual-polarization radar measurements of precipitation are primarily influenced by the size, shape, orientation, and phase of scattering hydrometeors. As a result, these measurements can serve as a tool for remote identification of hydrometeor characteristics. This paper presents an overview of the definitions, observed values, and applications of differential reflectivity (ZDR) and linear depolarization ratio (LDR) measurements. Brief examples of these measurements are given for widespread stratiform precipitation, a rapidly developing convective cell, and a severe hailstorm. The results outline the role that ZDR can play in the differentiation of rain and solid precipitation, identification of supercooled raindrops above the 0°C level, and identification of hail at the surface. LDR measurements are seen to reveal contrasts in ice-particle shape, orientation, and particle phase. These contrasts are of particular benefit toward delineation of hail regions aloft and identification of mixed-phase particle growth environments.
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      Observing Precipitation through Dual-Polarization Radar Measurements

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4161083
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    contributor authorHerzegh, Paul H.
    contributor authorJameson, Arthur R.
    date accessioned2017-06-09T14:41:04Z
    date available2017-06-09T14:41:04Z
    date copyright1992/09/01
    date issued1992
    identifier issn0003-0007
    identifier otherams-24413.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4161083
    description abstractDual-polarization radar measurements of precipitation are primarily influenced by the size, shape, orientation, and phase of scattering hydrometeors. As a result, these measurements can serve as a tool for remote identification of hydrometeor characteristics. This paper presents an overview of the definitions, observed values, and applications of differential reflectivity (ZDR) and linear depolarization ratio (LDR) measurements. Brief examples of these measurements are given for widespread stratiform precipitation, a rapidly developing convective cell, and a severe hailstorm. The results outline the role that ZDR can play in the differentiation of rain and solid precipitation, identification of supercooled raindrops above the 0°C level, and identification of hail at the surface. LDR measurements are seen to reveal contrasts in ice-particle shape, orientation, and particle phase. These contrasts are of particular benefit toward delineation of hail regions aloft and identification of mixed-phase particle growth environments.
    publisherAmerican Meteorological Society
    titleObserving Precipitation through Dual-Polarization Radar Measurements
    typeJournal Paper
    journal volume73
    journal issue9
    journal titleBulletin of the American Meteorological Society
    identifier doi10.1175/1520-0477(1992)073<1365:OPTDPR>2.0.CO;2
    journal fristpage1365
    journal lastpage1374
    treeBulletin of the American Meteorological Society:;1992:;volume( 073 ):;issue: 009
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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