YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Journal of the Atmospheric Sciences
    • View Item
    •   YE&T Library
    • AMS
    • Journal of the Atmospheric Sciences
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Determination of the Optical Thickness and Effective Particle Radius of Clouds from Reflected Solar Radiation Measurements. Part I: Theory

    Source: Journal of the Atmospheric Sciences:;1989:;Volume( 047 ):;issue: 015::page 1878
    Author:
    Nakajima, Teruyuki
    ,
    King, Michael D.
    DOI: 10.1175/1520-0469(1990)047<1878:DOTOTA>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: A method is presented for determining the optical thickness and effective particle radius of stratiform cloud layers from reflected solar radiation measurements. A detailed study is presented which shows that the cloud optical thickness (τc) and effective particle radius (re) of water clouds can be determined solely from reflection function measurements at 0.75 and 2.16 ?m, provided τc ? 4 and re ? 6 ?m. For optically thin clouds the retrieval becomes ambiguous, resulting in two possible solutions for the effective radius and optical thickness. Adding a third channel near 1.65 ?m does not improve the situation noticeably, whereas the addition of a channel near 3.70 ?m reduces the ambiguity in deriving the effective radius. The effective radius determined by the above procedure corresponds to the droplet radius at some optical depth within the cloud layer. For clouds having τc ? 8, the effective radius determined using the 0.75 and 2.16 ?m channels can be regarded as 85%?95% of the radius at cloud top, which corresponds in turn to an optical depth 20%?40% of the total optical thickness of the cloud layer.
    • Download: (1.350Mb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Determination of the Optical Thickness and Effective Particle Radius of Clouds from Reflected Solar Radiation Measurements. Part I: Theory

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4156585
    Collections
    • Journal of the Atmospheric Sciences

    Show full item record

    contributor authorNakajima, Teruyuki
    contributor authorKing, Michael D.
    date accessioned2017-06-09T14:29:51Z
    date available2017-06-09T14:29:51Z
    date copyright1990/08/01
    date issued1989
    identifier issn0022-4928
    identifier otherams-20365.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4156585
    description abstractA method is presented for determining the optical thickness and effective particle radius of stratiform cloud layers from reflected solar radiation measurements. A detailed study is presented which shows that the cloud optical thickness (τc) and effective particle radius (re) of water clouds can be determined solely from reflection function measurements at 0.75 and 2.16 ?m, provided τc ? 4 and re ? 6 ?m. For optically thin clouds the retrieval becomes ambiguous, resulting in two possible solutions for the effective radius and optical thickness. Adding a third channel near 1.65 ?m does not improve the situation noticeably, whereas the addition of a channel near 3.70 ?m reduces the ambiguity in deriving the effective radius. The effective radius determined by the above procedure corresponds to the droplet radius at some optical depth within the cloud layer. For clouds having τc ? 8, the effective radius determined using the 0.75 and 2.16 ?m channels can be regarded as 85%?95% of the radius at cloud top, which corresponds in turn to an optical depth 20%?40% of the total optical thickness of the cloud layer.
    publisherAmerican Meteorological Society
    titleDetermination of the Optical Thickness and Effective Particle Radius of Clouds from Reflected Solar Radiation Measurements. Part I: Theory
    typeJournal Paper
    journal volume47
    journal issue15
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/1520-0469(1990)047<1878:DOTOTA>2.0.CO;2
    journal fristpage1878
    journal lastpage1893
    treeJournal of the Atmospheric Sciences:;1989:;Volume( 047 ):;issue: 015
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian