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    The Kinetic Energy of Hailfalls. Part I: Hailstone Spectra

    Source: Journal of Applied Meteorology:;1978:;volume( 017 ):;issue: 004::page 515
    Author:
    Waldvogel, A.
    ,
    Schmid, W.
    ,
    Federer, B.
    DOI: 10.1175/1520-0450(1978)017<0515:TKEOHP>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The relationship between radar reflectivity and kinetic energy flux (Z-?) is investigated by means of analyses of hailstone size distributions measured with hail spectrometers. Semi-empirical relations assuming monodisperse or exponential and untruncated hailstone size distributions are compared with real relations obtained from 175 measured spectra. It is found that 1) the semi-empirical relations agree very well with real ones, the deviation in ? in the case of exponential spectra being less than 15% for Z values between 50 and 70 dBZ, 2) the Z-? relations from different storms show a surprisingly similar behavior, and 3) the total kinetic energy in one point calculated from radar reflectivity factors agrees with the real energy value to better than 25%.
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      The Kinetic Energy of Hailfalls. Part I: Hailstone Spectra

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4232922
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    contributor authorWaldvogel, A.
    contributor authorSchmid, W.
    contributor authorFederer, B.
    date accessioned2017-06-09T17:39:26Z
    date available2017-06-09T17:39:26Z
    date copyright1978/04/01
    date issued1978
    identifier issn0021-8952
    identifier otherams-9434.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4232922
    description abstractThe relationship between radar reflectivity and kinetic energy flux (Z-?) is investigated by means of analyses of hailstone size distributions measured with hail spectrometers. Semi-empirical relations assuming monodisperse or exponential and untruncated hailstone size distributions are compared with real relations obtained from 175 measured spectra. It is found that 1) the semi-empirical relations agree very well with real ones, the deviation in ? in the case of exponential spectra being less than 15% for Z values between 50 and 70 dBZ, 2) the Z-? relations from different storms show a surprisingly similar behavior, and 3) the total kinetic energy in one point calculated from radar reflectivity factors agrees with the real energy value to better than 25%.
    publisherAmerican Meteorological Society
    titleThe Kinetic Energy of Hailfalls. Part I: Hailstone Spectra
    typeJournal Paper
    journal volume17
    journal issue4
    journal titleJournal of Applied Meteorology
    identifier doi10.1175/1520-0450(1978)017<0515:TKEOHP>2.0.CO;2
    journal fristpage515
    journal lastpage520
    treeJournal of Applied Meteorology:;1978:;volume( 017 ):;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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