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    A Refined Charge Distribution in a Stochastic Electrical Model of an Infinite Cloud

    Source: Journal of the Atmospheric Sciences:;1976:;Volume( 033 ):;issue: 009::page 1756
    Author:
    Levin, Zev
    DOI: 10.1175/1520-0469(1976)033<1756:ARCDIA>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The stochastic electrical numerical model of cloud growth and precipitation development of Scott and Levin (1975) has been refined to include a distribution of charge within each size class. Each size class is separated into three subclasses containing negative, neutral and positive charge, respectively. The results indicate that the electric field reaches values of around 4 kV cm?1 within about 1000 s and that both positive and negative charges are carried on the particles. In agreement with the previous model, most precipitation size particles carry negative charges while most smaller cloud particles carry positive charges. However, the electrification shows an enhancement in precipitation in the early stages of cloud development. The effect reverses when the field approaches its maximum value. At that point the electrical forces affect the particle interactions through their fallspeed, and the precipitation rate falls below the corresponding rate in the unelectrified case.
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      A Refined Charge Distribution in a Stochastic Electrical Model of an Infinite Cloud

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4153006
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    contributor authorLevin, Zev
    date accessioned2017-06-09T14:19:08Z
    date available2017-06-09T14:19:08Z
    date copyright1976/09/01
    date issued1976
    identifier issn0022-4928
    identifier otherams-17144.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4153006
    description abstractThe stochastic electrical numerical model of cloud growth and precipitation development of Scott and Levin (1975) has been refined to include a distribution of charge within each size class. Each size class is separated into three subclasses containing negative, neutral and positive charge, respectively. The results indicate that the electric field reaches values of around 4 kV cm?1 within about 1000 s and that both positive and negative charges are carried on the particles. In agreement with the previous model, most precipitation size particles carry negative charges while most smaller cloud particles carry positive charges. However, the electrification shows an enhancement in precipitation in the early stages of cloud development. The effect reverses when the field approaches its maximum value. At that point the electrical forces affect the particle interactions through their fallspeed, and the precipitation rate falls below the corresponding rate in the unelectrified case.
    publisherAmerican Meteorological Society
    titleA Refined Charge Distribution in a Stochastic Electrical Model of an Infinite Cloud
    typeJournal Paper
    journal volume33
    journal issue9
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/1520-0469(1976)033<1756:ARCDIA>2.0.CO;2
    journal fristpage1756
    journal lastpage1762
    treeJournal of the Atmospheric Sciences:;1976:;Volume( 033 ):;issue: 009
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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