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    Annual Cycles of Surface Shortwave Radiative Fluxes

    Source: Journal of Climate:;2006:;volume( 019 ):;issue: 004::page 535
    Author:
    Wilber, Anne C.
    ,
    Smith, G. Louis
    ,
    Gupta, Shashi K.
    ,
    Stackhouse, Paul W.
    DOI: 10.1175/JCLI3625.1
    Publisher: American Meteorological Society
    Abstract: The annual cycles of surface shortwave flux are investigated using the 8-yr dataset of the surface radiation budget (SRB) components for the period July 1983?June 1991. These components include the downward, upward, and net shortwave radiant fluxes at the earth's surface. The seasonal cycles are quantified in terms of principal components that describe the temporal variations and empirical orthogonal functions (EOFs) that describe the spatial patterns. The major part of the variation is simply due to the variation of the insolation at the top of the atmosphere, especially for the first term, which describes 92.4% of the variance for the downward shortwave flux. However, for the second term, which describes 4.1% of the variance, the effect of clouds is quite important and the effect of clouds dominates the third term, which describes 2.4% of the variance. To a large degree the second and third terms are due to the response of clouds to the annual cycle of solar forcing. For net shortwave flux at the surface, similar variances are described by each term. The regional values of the EOFs are related to climate classes, thereby defining the range of annual cycles of shortwave radiation for each climate class.
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      Annual Cycles of Surface Shortwave Radiative Fluxes

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4220728
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    contributor authorWilber, Anne C.
    contributor authorSmith, G. Louis
    contributor authorGupta, Shashi K.
    contributor authorStackhouse, Paul W.
    date accessioned2017-06-09T17:01:24Z
    date available2017-06-09T17:01:24Z
    date copyright2006/02/01
    date issued2006
    identifier issn0894-8755
    identifier otherams-78097.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4220728
    description abstractThe annual cycles of surface shortwave flux are investigated using the 8-yr dataset of the surface radiation budget (SRB) components for the period July 1983?June 1991. These components include the downward, upward, and net shortwave radiant fluxes at the earth's surface. The seasonal cycles are quantified in terms of principal components that describe the temporal variations and empirical orthogonal functions (EOFs) that describe the spatial patterns. The major part of the variation is simply due to the variation of the insolation at the top of the atmosphere, especially for the first term, which describes 92.4% of the variance for the downward shortwave flux. However, for the second term, which describes 4.1% of the variance, the effect of clouds is quite important and the effect of clouds dominates the third term, which describes 2.4% of the variance. To a large degree the second and third terms are due to the response of clouds to the annual cycle of solar forcing. For net shortwave flux at the surface, similar variances are described by each term. The regional values of the EOFs are related to climate classes, thereby defining the range of annual cycles of shortwave radiation for each climate class.
    publisherAmerican Meteorological Society
    titleAnnual Cycles of Surface Shortwave Radiative Fluxes
    typeJournal Paper
    journal volume19
    journal issue4
    journal titleJournal of Climate
    identifier doi10.1175/JCLI3625.1
    journal fristpage535
    journal lastpage547
    treeJournal of Climate:;2006:;volume( 019 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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