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dc.contributor.advisorMechem, David B
dc.contributor.authorNelson, Kevin John
dc.date.accessioned2016-01-03T03:32:29Z
dc.date.available2016-01-03T03:32:29Z
dc.date.issued2015-08-31
dc.date.submitted2015
dc.identifier.otherhttp://dissertations.umi.com/ku:14205
dc.identifier.urihttp://hdl.handle.net/1808/19544
dc.description.abstractMarine boundary layer clouds cool the climate system by influencing the shortwave radiation budget, and on shorter timescales can influence marine and aircraft operations. We evaluate the ability of a regional forecast model (NRL COAMPS) to accurately represent marine boundary layer cloud properties, using a number of different microphysical parameterizations. We focus on both the relative performance of the different parameterizations and on how they compare to observations from the VOCALS-REx field campaign conducted over the southeastern Pacific in 2008. We found evidence of a negative model bias on liquid water path (LWP) and marine boundary layer (MBL) depth, and persistent over-estimation of precipitation rates in mesoscale simulations. Certain aspects of the diurnal cycle of cloud systems were also observed. In addition to direct comparisons with the observations to evaluate forecast accuracy, we assess the internal consistency of model microphysical properties by comparing simulation output to a number of observationally derived scalings for precipitation and aerosol scavenging. Model output holds well to the observationally derived scalings, and resolution plays a significant role in determining whether or not the model microphyics is consistent with observations.
dc.format.extent51 pages
dc.language.isoen
dc.publisherUniversity of Kansas
dc.rightsCopyright held by the author.
dc.subjectAtmospheric sciences
dc.subjectMeteorology
dc.subjectautoconversion
dc.subjectboundary-layer
dc.subjectmarine
dc.subjectmesoscale
dc.subjectmicrophysics
dc.subjectstratocumulus
dc.titleEvaluation of warm-rain microphysical parameterizations in mesoscale simulations of the cloudy marine boundary layer
dc.typeThesis
dc.contributor.cmtememberRahn, David A
dc.contributor.cmtememberTucker, Donna F
dc.thesis.degreeDisciplineAtmospheric Science
dc.thesis.degreeLevelM.S.
dc.identifier.orcidhttps://orcid.org/0000-0001-7411-1609
dc.rights.accessrightsopenAccess


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