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    Relationship between Aerosols, Hail Microphysics, and ZDR Columns

    Source: Journal of the Atmospheric Sciences:;2018:;volume 075:;issue 006::page 1755
    Author:
    Ilotoviz, E.
    ,
    Khain, A.
    ,
    Ryzhkov, Alexander V.
    ,
    Snyder, Jeffrey C.
    DOI: 10.1175/JAS-D-17-0127.1
    Publisher: American Meteorological Society
    Abstract: AbstractMechanisms of formation of differential reflectivity columns are investigated in simulations of a midlatitude summertime hailstorm with hailstones up to several centimeters in diameter. Simulations are performed using a new version of the Hebrew University Cloud Model (HUCM) with spectral bin microphysics. A polarimetric radar forward operator is used to calculate radar reflectivity and differential reflectivity ZDR. It is shown that ZDR columns are associated with raindrops and with hail particles growing in a wet growth regime within convective updrafts. The height and volume of ZDR columns increases with an increase in aerosol concentration. Small hail forming under clean conditions grows in updrafts largely in a dry growth regime corresponding to low ZDR. Characteristics of ZDR columns are highly correlated with vertical velocity, hail size, and aerosol concentration.
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      Relationship between Aerosols, Hail Microphysics, and ZDR Columns

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4261737
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    contributor authorIlotoviz, E.
    contributor authorKhain, A.
    contributor authorRyzhkov, Alexander V.
    contributor authorSnyder, Jeffrey C.
    date accessioned2019-09-19T10:07:10Z
    date available2019-09-19T10:07:10Z
    date copyright3/23/2018 12:00:00 AM
    date issued2018
    identifier otherjas-d-17-0127.1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4261737
    description abstractAbstractMechanisms of formation of differential reflectivity columns are investigated in simulations of a midlatitude summertime hailstorm with hailstones up to several centimeters in diameter. Simulations are performed using a new version of the Hebrew University Cloud Model (HUCM) with spectral bin microphysics. A polarimetric radar forward operator is used to calculate radar reflectivity and differential reflectivity ZDR. It is shown that ZDR columns are associated with raindrops and with hail particles growing in a wet growth regime within convective updrafts. The height and volume of ZDR columns increases with an increase in aerosol concentration. Small hail forming under clean conditions grows in updrafts largely in a dry growth regime corresponding to low ZDR. Characteristics of ZDR columns are highly correlated with vertical velocity, hail size, and aerosol concentration.
    publisherAmerican Meteorological Society
    titleRelationship between Aerosols, Hail Microphysics, and ZDR Columns
    typeJournal Paper
    journal volume75
    journal issue6
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/JAS-D-17-0127.1
    journal fristpage1755
    journal lastpage1781
    treeJournal of the Atmospheric Sciences:;2018:;volume 075:;issue 006
    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
    yabeshDSpacePersian