Baseline Climatology of Sounding-Measured Variates Associated with Atlantic and Gulf Coast Tropical Cyclone Tornado Clusters

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dc.contributor.advisorDixon, Richard W.
dc.contributor.authorHervey, James Nicholas
dc.contributor.committeeMemberButler, David R.
dc.date.accessioned2017-08-24T17:23:18Z
dc.date.available2017-08-24T17:23:18Z
dc.date.issued2017-05
dc.description.abstractRadiosonde sounding-measured variates are analyzed for 55 cases of tornado outbreaks associated with tropical cyclones from 1995-2010. We define a tropical cyclone tornado outbreak as six or more tornadoes occurring in a six-hour period. All the tornadoes are associated with a landfalling or post-landfall translating tropical cyclone. Previous studies have examined the role of the atmospheric environment in an individual tropical cyclone or individual tornado. An earlier study of these tropical cyclone tornado clusters produced a baseline climatology of stability and wind shear parameters. The goal of this study is to provide a climatology of sounding-measured variates for each tropical cyclone tornado outbreak. Sounding variates provide information on characteristics of the atmospheric column such as height of standard pressure surfaces, temperature, moisture, and winds. Descriptive statistics for the sounding-measured parameters are presented to document the central tendency and variability of atmospheric conditions associated with these outbreaks. A hierarchical cluster analysis produced three clusters with significant difference in the North/South wind parameter for cluster 3. A principal components analysis revealed that the north/south wind contributed significantly to the occurrence of tornado outbreaks with dew point contributing the least.
dc.description.departmentApplied Geography
dc.formatText
dc.format.extent15 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationHervey, J. N. (2017). Baseline climatology of sounding-measured variates associated with Atlantic and Gulf Coast tropical cyclone tornado clusters. Master of Applied Geography Degree, Texas State University, San Marcos, TX.
dc.identifier.urihttps://hdl.handle.net/10877/6772
dc.language.isoen
dc.subjecttropical cyclone tornadoes
dc.subjectradiosonde
dc.subjectmesoscale
dc.subjectclimatology
dc.subjectApplied Geography
dc.titleBaseline Climatology of Sounding-Measured Variates Associated with Atlantic and Gulf Coast Tropical Cyclone Tornado Clusters
dc.typeDirected Research Project
thesis.degree.departmentGeography
thesis.degree.grantorTexas State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Applied Geography

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