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contributor authorShaw, William J.
contributor authorDoran, J. Christopher
date accessioned2017-06-09T15:57:41Z
date available2017-06-09T15:57:41Z
date copyright2001/04/01
date issued2001
identifier issn0894-8755
identifier otherams-5756.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4197911
description abstractData from several surface meteorological networks in the vicinity of the U.S. Department of Energy?s Southern Great Plains Cloud and Radiation Testbed were used to investigate the relationship between boundary layer circulations, as reflected in composited divergence fields, and variations in vegetation, surface temperature, and topography. The study is unique in using data from a dense collection of surface meteorological instruments that are distributed over a region comparable in size to a GCM grid cell in a region of sharply varying land use. These land use differences provide variations in surface heat flux on a scale O(100 km) that has been postulated to produce the strongest surface-induced mesoscale circulations in the boundary layer. This paper details the first signature in data of a boundary layer circulation that can be attributed to land use differences at this scale. It is found, however, that in the composited fields the majority of the divergence extrema persist over seasons, are present in all observed wind conditions, are geographically fixed, and are more likely related to gentle topographic features rather than to land use differences.
publisherAmerican Meteorological Society
titleObservations of Systematic Boundary Layer Divergence Patterns and Their Relationship to Land Use and Topography
typeJournal Paper
journal volume14
journal issue8
journal titleJournal of Climate
identifier doi10.1175/1520-0442(2001)014<1753:OOSBLD>2.0.CO;2
journal fristpage1753
journal lastpage1764
treeJournal of Climate:;2001:;volume( 014 ):;issue: 008
contenttypeFulltext


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