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    On Aerosol Direct Shortwave Forcing and the Henyey–Greenstein Phase Function

    Source: Journal of the Atmospheric Sciences:;1998:;Volume( 055 ):;issue: 001::page 128
    Author:
    Boucher, Olivier
    DOI: 10.1175/1520-0469(1998)055<0128:OADSFA>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: This technical note extends previous Mie calculations to show that there are complex relationships between the asymmetry parameter g and the upscatter fractions for monodirectional incident radiation ?(?0). Except for intermediate zenith angles and for the upscatter fraction for diffuse radiation, there are significant differences between ?(?0) predicted by the Mie theory and that approximated by a Henyey?Greenstein phase function. While the Henyey?Greenstein phase function is widely used in radiative transfer calculations to characterize aerosol or cloud droplet scattering, it may cause important discrepancies in the computation of the aerosol direct radiative forcing, depending on solar zenith angle, aerosol size, and refractive index. The implications of this work for aerosol and climate-related studies are also discussed.
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      On Aerosol Direct Shortwave Forcing and the Henyey–Greenstein Phase Function

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    contributor authorBoucher, Olivier
    date accessioned2017-06-09T14:34:48Z
    date available2017-06-09T14:34:48Z
    date copyright1998/01/01
    date issued1998
    identifier issn0022-4928
    identifier otherams-22097.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4158509
    description abstractThis technical note extends previous Mie calculations to show that there are complex relationships between the asymmetry parameter g and the upscatter fractions for monodirectional incident radiation ?(?0). Except for intermediate zenith angles and for the upscatter fraction for diffuse radiation, there are significant differences between ?(?0) predicted by the Mie theory and that approximated by a Henyey?Greenstein phase function. While the Henyey?Greenstein phase function is widely used in radiative transfer calculations to characterize aerosol or cloud droplet scattering, it may cause important discrepancies in the computation of the aerosol direct radiative forcing, depending on solar zenith angle, aerosol size, and refractive index. The implications of this work for aerosol and climate-related studies are also discussed.
    publisherAmerican Meteorological Society
    titleOn Aerosol Direct Shortwave Forcing and the Henyey–Greenstein Phase Function
    typeJournal Paper
    journal volume55
    journal issue1
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/1520-0469(1998)055<0128:OADSFA>2.0.CO;2
    journal fristpage128
    journal lastpage134
    treeJournal of the Atmospheric Sciences:;1998:;Volume( 055 ):;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
    yabeshDSpacePersian