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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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