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Meteorological characteristics associated with warm-season positive lightning events
| dc.creator | Heggen, Paul Michael | |
| dc.date.accessioned | 2012-06-07T22:59:31Z | |
| dc.date.available | 2012-06-07T22:59:31Z | |
| dc.date.created | 2000 | |
| dc.date.issued | 2000 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-2000-THESIS-H43 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references (leaves 94-96). | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | Atmospheric soundings are analyzed to identify relationships between atmospheric conditions and high percentages of positive cloud-to-ground (CG) lightning in 67 warm-season thunderstorms over southern Louisiana and extreme southern Mississippi. The goal of this study is to determine threshold values of sounding parameters that could be used to predict or nowcast positive lightning. Overall, few relationships are found between these sounding calculations and percentages of positive lightning. The parameters that showed a weak correlation to positive lightning in both forecasting and nowcasting contexts are the 850-500 millibar wind shear, the Bulk Richardson shear, the Severe Weather Threat (SWEAT) Index, and the Energy-Helicity Index. While these weak correlations may indicate the direction of future research into wintertime positive lightning, the conclusion of this study is that atmospheric soundings cannot be used to predict high percentages of positive CG lightning in warm-season thunderstorms. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | meteorology. | en |
| dc.subject | Major meteorology. | en |
| dc.title | Meteorological characteristics associated with warm-season positive lightning events | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | meteorology | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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