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dc.contributor.authorMcCaa, James Roberten_US
dc.date.accessioned2009-10-07T00:44:51Z
dc.date.available2009-10-07T00:44:51Z
dc.date.issued2001en_US
dc.identifier.otherb47354367en_US
dc.identifier.other50183475en_US
dc.identifier.otheren_US
dc.identifier.urihttp://hdl.handle.net/1773/10019
dc.descriptionThesis (Ph. D.)--University of Washington, 2001en_US
dc.description.abstractA new parameterization of marine stratocumulus and shallow cumulus clouds is presented. The parameterization consists of a mass flux cumulus convection scheme coupled to a 1.5 order Turbulence Closure Model (TCM) with an entrainment closure for convective boundary layers. The mass flux scheme is based on a buoyancy sorting entrainment-detrainment plume model, where detrainment is linked to the expulsion from the updraft of negatively buoyant parcels generated by lateral mixing. Model performance is verified using single column model simulations at relatively high vertical resolution of stratocumulus-capped, cumulus-capped, and transitional marine boundary layers. Mixing rates, cloud cover and vertical flux profiles, as deduced from previously published large eddy simulation (LES) studies, are well reproduced by the parameterization. The parameterization is implemented in a mesoscale model, and regional climate simulations are presented for a northern hemisphere summer for domains including regions of the northeast and southeast Pacific Ocean. Inclusion of the parameterization of shallow convection significantly improves the simulated cloud fields and vertical structure of trade cumulus regimes.en_US
dc.format.extentviii, 161 p.en_US
dc.language.isoen_USen_US
dc.rightsCopyright is held by the individual authors.en_US
dc.rights.urien_US
dc.subject.otherTheses--Atmospheric sciencesen_US
dc.titleA new parameterization of marine stratocumulus and shallow cumulus clouds for climate modelsen_US
dc.typeThesisen_US


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