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IC to CG Lightning Relationships over the Tallahassee CWA

Title: IC to CG Lightning Relationships over the Tallahassee CWA.
Name(s): Jackson, Karly M., author
Department of Earth, Ocean and Atmospheric Sciences
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2015
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The formation of and the relationship between intra-cloud (IC) and cloud-to-ground (CG) lightning flashes have not been thoroughly studied. Understanding how these flash types interact in different types of thunderstorms can lead to a better understanding of lightning characteristics and how these characteristics can be applied to operational forecasting practices. Results of this study show that the IC:CG ratio varies greatly each day throughout the summer season over the County Warning Area (CWA) of the Tallahassee National Weather Service Forecast Office. The summer season is dominated by daily thunderstorms that form due to sea breeze fronts and their resulting outflow boundaries. Eleven case study storms reveal how IC and CG flash counts and rates in non-severe thunderstorms differ from those of severe storms such as those examined by Williams et al. (1999). Results of the present study reveal that the timing of CG lightning and the frequency of its strikes differ from those of severe storms. This is most likely due to severe storms producing stronger updrafts for longer periods of time than those of non-severe storms. The IC:CG ratios varied greatly among these case studies indicating that further studies must be done to determine a statistically significant understanding of how flash rates change and how the relationship between IC and CG flashes relate to the ratios they produce.
Identifier: FSU_migr_uhm-0552 (IID)
Keywords: lightning, meteorology, severe, IC, CG, County Warning Area, Tallahassee
Submitted Note: A Thesis submitted to the Department of Earth, Ocean, and Atmospheric Science in partial fulfillment of the requirements for graduation with Honors in the Major.
Degree Awarded: Spring Semester, 2015.
Date of Defense: April 16, 2015.
Subject(s): Atmospheric physics
Atmospheric sciences
Persistent Link to This Record:
Owner Institution: FSU
Is Part of Series: Honors Theses.

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Jackson, K. M. (2015). IC to CG Lightning Relationships over the Tallahassee CWA. Retrieved from