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dc.contributor.authorRamseyer, Craig Allen
dc.date.accessioned2014-03-04T20:22:18Z
dc.date.available2014-03-04T20:22:18Z
dc.date.issued2011-08
dc.identifier.otherramseyer_craig_a_201108_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/ramseyer_craig_a_201108_ms
dc.identifier.urihttp://hdl.handle.net/10724/27569
dc.description.abstractThis thesis uses six case days to examine the effects of aerosols produced by forest fires on the development of deep marine clouds and their ability to precipitate available cloud liquid water (CLW) along the U.S. South Atlantic coast. A proxy for precipitation efficiency (CREP) is calculated using a blended satellite precipitation product and CLW path from the Advanced Microwave Scanning Radiometer – Earth Observing System (AMSR-E), following the methodology of Jin and Shepherd (2008); Berg et al. (2006). This study finds that shallow precipitating clouds are very rare, likely due to precipitation suppression from forest fire aerosols. Upwind aerosol optical thickness (AOT) values of >1.5 are needed for a noticeable impact on precipitation in deep clouds. Cloud effective radius is decreased in all six cases. CREP shows inconsistent aerosol forcing on precipitation for high aerosol cases. The discrepancy may be related to suppression of precipitation when a high percentage of cloud condensation nuclei are thrust above the level of homogeneous nucleation by intense updrafts.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectINDEX WORDS: forest fire, aerosol, precipitation, CREP
dc.titleForest fire aerosol forcing of precipitation along the U.S. South Atlantic coast
dc.typeThesis
dc.description.degreeMS
dc.description.departmentGeography
dc.description.majorGeography
dc.description.advisorThomas Mote
dc.description.committeeThomas Mote
dc.description.committeeJ. Marshall Shepherd
dc.description.committeeYongqiang Liu


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