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Title:Modeling and Observational Studies of Shallow Cumulus Convection Over the Indian Ocean: Aerosol and Meteorological Effects on Diurnal Cycles
Author(s):Wang, Hailong
Doctoral Committee Chair(s):McFarquhar, Greg M.
Department / Program:Atmospheric Sciences
Discipline:Atmospheric Sciences
Degree Granting Institution:University of Illinois at Urbana-Champaign
Abstract:Additional solar heating induced by soot aerosols affected the static stability in the boundary layer. The vertical profile of soot aerosols had a critical influence on how they impacted cloud properties and turbulence. Changes in environmental relative humidity and the presence of a dry and stable layer had critical impacts on cumulus cloud properties, turbulence and lateral detrainment rate, and on how anthropogenic aerosols affect these quantities. For the range of meteorological conditions observed during INDOEX the semi-direct effect always dominated indirect effects, producing a positive daytime mean net indirect forcing, varying between 0.2 and 4.5 W m-2. Further, the indirect forcing was larger when the environmental relative humidity was higher and in the absence of any dry and stable layers.
Issue Date:2007
Description:193 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007.
Other Identifier(s):(MiAaPQ)AAI3290419
Date Available in IDEALS:2015-09-28
Date Deposited:2007

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