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Characteristics of WTLN-Derived Lightning

Title: Characteristics of WTLN-Derived Lightning.
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Name(s): Saunders, Matthew, author
Earth, Ocean & Atmospheric Science
Type of Resource: text
Genre: Text
Issuance: serial
Date Issued: 2012
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Many studies have used cloud-to-ground (CG), intracloud (IC), and total (CG + IC) lightning to investigate relationships between lightning and severe weather. Although the National Lightning Detection Network (NLDN) is the most common system used to detect lightning, it is limited to reporting only CG lightning over the continental United States. The WeatherBug Total Lightning Network (WTLN) is a global data set recently established by Earth Networks, Inc. that reports both CG and IC lightning. WTLN has the potential to offer superior lightning data, although little research has compared WTLN information to other data sets like the NLDN. Using WTLN and NLDN data, distributions of stroke counts by polarity and peak current were plotted during a16-month study period near Cape Canaveral, FL. The WTLN data set showed an over detection of weak peak current strokes and under detection of strong peak current strokes. The WTLN data also exhibited higher overall stroke counts compared to NLDN. A case study of the Tuscaloosa-Birmingham tornado showed an opposite relation between WTLN and NLDN stroke counts. Compared to NLDN, the WTLN continually undercounted strokes during the lifecycle of the storm. While the number of counts was dissimilar, the two data sets correlated strongly (0.79) during the storm period. When the lightning was divided by polarity, WTLN showed a much greater detection of positive CG lightning than NLDN.
Identifier: FSU_migr_uhm-0055 (IID)
Submitted Note: A Thesis submitted to the Department of Earth, Ocean, and Atmospheric Sciences in partial fulfillment of the requirements for the degree of Honors in the Major.
Degree Awarded: Spring Semester, 2012.
Date of Defense: April 6, 2012.
Subject(s): Atmospheric physics
Atmospheric sciences
Earth sciences
Meteorology
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_migr_uhm-0055
Owner Institution: FSU
Is Part of Series: Honors Theses.

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Saunders, M. (2012). Characteristics of WTLN-Derived Lightning. Retrieved from http://purl.flvc.org/fsu/fd/FSU_migr_uhm-0055