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    Attenuation and Differential Attenuation of 5-cm-Wavelength Radiation in Melting Hail

    Source: Journal of Applied Meteorology and Climatology:;2010:;volume( 050 ):;issue: 001::page 59
    Author:
    Borowska, L.
    ,
    Ryzhkov, A.
    ,
    Zrnić, D.
    ,
    Simmer, C.
    ,
    Palmer, R.
    DOI: 10.1175/2010JAMC2465.1
    Publisher: American Meteorological Society
    Abstract: Presented are quantitative estimates of specific attenuation and specific differential attenuation of 5-cm-wavelength radiation (C band) obtained by comparison with measurements at 10-cm wavelength (S band), which are much less affected by attenuation. The data originated from two almost-collocated radars in central Oklahoma. To avoid biases in estimates, the slopes with respect to range of differences in reflectivities and differential reflectivities are assumed to represent the specific attenuations. Observations on a day with no reports of hail on the ground and on a day with large hail are contrasted. A simple one-dimensional model of melting hail is used to qualify these observations. Examples of volumetric fields of the polarimetric variables obtained at the two wavelengths are presented to illustrate that much can be learned about size, orientation, and phase of hydrometeors over volumes that play a role in precipitation formation.
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      Attenuation and Differential Attenuation of 5-cm-Wavelength Radiation in Melting Hail

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4211799
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    • Journal of Applied Meteorology and Climatology

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    contributor authorBorowska, L.
    contributor authorRyzhkov, A.
    contributor authorZrnić, D.
    contributor authorSimmer, C.
    contributor authorPalmer, R.
    date accessioned2017-06-09T16:33:50Z
    date available2017-06-09T16:33:50Z
    date copyright2011/01/01
    date issued2010
    identifier issn1558-8424
    identifier otherams-70060.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4211799
    description abstractPresented are quantitative estimates of specific attenuation and specific differential attenuation of 5-cm-wavelength radiation (C band) obtained by comparison with measurements at 10-cm wavelength (S band), which are much less affected by attenuation. The data originated from two almost-collocated radars in central Oklahoma. To avoid biases in estimates, the slopes with respect to range of differences in reflectivities and differential reflectivities are assumed to represent the specific attenuations. Observations on a day with no reports of hail on the ground and on a day with large hail are contrasted. A simple one-dimensional model of melting hail is used to qualify these observations. Examples of volumetric fields of the polarimetric variables obtained at the two wavelengths are presented to illustrate that much can be learned about size, orientation, and phase of hydrometeors over volumes that play a role in precipitation formation.
    publisherAmerican Meteorological Society
    titleAttenuation and Differential Attenuation of 5-cm-Wavelength Radiation in Melting Hail
    typeJournal Paper
    journal volume50
    journal issue1
    journal titleJournal of Applied Meteorology and Climatology
    identifier doi10.1175/2010JAMC2465.1
    journal fristpage59
    journal lastpage76
    treeJournal of Applied Meteorology and Climatology:;2010:;volume( 050 ):;issue: 001
    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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