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dc.contributor.advisorMarket, Patrick S.eng
dc.contributor.authorPettegrew, Brian P., 1979-eng
dc.date.issued2008eng
dc.date.submitted2008 Springeng
dc.descriptionThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.eng
dc.descriptionTitle from title screen of research.pdf file (viewed on June 15, 2009)eng
dc.descriptionVita.eng
dc.descriptionThesis (Ph. D.) University of Missouri-Columbia 2008.eng
dc.description.abstractThe combination of the full suite of cloud-to-ground (CG) and cloud stroke data is used to observe lightning in precipitation events involving winter precipitation. In particular, we observe data for the winter season of 2006 to 2007 for winter events that generated the weather phenomenon known as thundersnow. Only 1.4% of all lightning observed were associated with winter precipitation in 14 events involving thundersnow. Cloud flashes made up 31.4% of the observed lightning in winter precipitation. Further, 92.0% of the observed CG strokes were found to have a negative polarity. Storm total diagrams showed the dominance of low amplitude negative strokes (between - 10 and - 30 kA) in each storm. Lightning in winter precipitation had a cloud-to-CG ratio of 0.46 (1 cloud to 2.2 CG strokes) throughout the season. Analysis of 24-hour diurnal trends in the winter lightning showed a tendency for greater activity between 0000 and 0400 UTC. Composite soundings from Rapid Update Cycle (RUC) initial fields showed a similarity to previous work done on proximity soundings in thundersnow events. Further, comparisons to an elevated warm precipitation event showed similarity in the vertical profiles. However, the diurnal characteristics of the lightning show no similarity as do synoptic and mesoscale environments surrounding the event.eng
dc.description.bibrefIncludes bibliographical referenceseng
dc.identifier.merlinb68967330eng
dc.identifier.oclc400007600eng
dc.identifier.urihttps://doi.org/10.32469/10355/5586eng
dc.identifier.urihttps://hdl.handle.net/10355/5586
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcommunityUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.rightsOpenAccess.eng
dc.rights.licenseThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
dc.subject.lcshCloudseng
dc.subject.lcshLightningeng
dc.subject.lcshWinter stormseng
dc.subject.lcshSnoweng
dc.titleAnalysis of cloud and cloud-to-ground lightning in winter convectioneng
dc.typeThesiseng
thesis.degree.disciplineSoil, environmental and atmospheric sciences (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelDoctoraleng
thesis.degree.namePh. D.eng


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