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    A Global Determination of Cloud Microphysics with AVHRR Remote Sensing

    Source: Journal of Climate:;2001:;volume( 014 ):;issue: 009::page 2054
    Author:
    Kawamoto, Kazuaki
    ,
    Nakajima, Teruyuki
    ,
    Nakajima, Takashi Y.
    DOI: 10.1175/1520-0442(2001)014<2054:AGDOCM>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: An algorithm is developed for determining the cloud optical thickness and effective particle radius simultaneously on a global scale using Advanced Very High Resolution Radiometer (AVHRR) multispectral radiance data. In the algorithm, the treatment of thermal radiation in Nakajima and Nakajima is improved by reformulating the thermal emission in the atmospheric layers. At the same time, the lookup table for thermal emission is parameterized in terms of the equivalent water vapor path in order to include the effect of various vertical water vapor profiles. The algorithm is applied to AVHRR radiance data corresponding to reported aircraft and balloon measurements of cloud microphysical parameters. A comparison shows a good agreement between in situ and satellite-retrieved values thus obtained. The algorithm is further applied to 4-month Global Area Coverage data of 1987 to generate global distributions of the cloud optical thickness and effective particle radius for every 0.5° ? 0.5° box in a ?60°?60° latitudinal region. Similarities and differences in the global features of the effective particle radius and the optical thickness are found as compared with the previous studies.
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      A Global Determination of Cloud Microphysics with AVHRR Remote Sensing

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4198111
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    • Journal of Climate

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    contributor authorKawamoto, Kazuaki
    contributor authorNakajima, Teruyuki
    contributor authorNakajima, Takashi Y.
    date accessioned2017-06-09T15:58:07Z
    date available2017-06-09T15:58:07Z
    date copyright2001/05/01
    date issued2001
    identifier issn0894-8755
    identifier otherams-5774.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4198111
    description abstractAn algorithm is developed for determining the cloud optical thickness and effective particle radius simultaneously on a global scale using Advanced Very High Resolution Radiometer (AVHRR) multispectral radiance data. In the algorithm, the treatment of thermal radiation in Nakajima and Nakajima is improved by reformulating the thermal emission in the atmospheric layers. At the same time, the lookup table for thermal emission is parameterized in terms of the equivalent water vapor path in order to include the effect of various vertical water vapor profiles. The algorithm is applied to AVHRR radiance data corresponding to reported aircraft and balloon measurements of cloud microphysical parameters. A comparison shows a good agreement between in situ and satellite-retrieved values thus obtained. The algorithm is further applied to 4-month Global Area Coverage data of 1987 to generate global distributions of the cloud optical thickness and effective particle radius for every 0.5° ? 0.5° box in a ?60°?60° latitudinal region. Similarities and differences in the global features of the effective particle radius and the optical thickness are found as compared with the previous studies.
    publisherAmerican Meteorological Society
    titleA Global Determination of Cloud Microphysics with AVHRR Remote Sensing
    typeJournal Paper
    journal volume14
    journal issue9
    journal titleJournal of Climate
    identifier doi10.1175/1520-0442(2001)014<2054:AGDOCM>2.0.CO;2
    journal fristpage2054
    journal lastpage2068
    treeJournal of Climate:;2001:;volume( 014 ):;issue: 009
    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