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Analysis of lightning flash videos from the Space Shuttle using blob and morphological techniquesFlash rates measured from the Space Shuttle range from 27.8 flashes per minute to 77 flashes per minute. The cloud is an optically thick medium which effectively scatters the energy from a lightning discharge and thereby broadens the risetime and duration of each lightning pulse. Because of the small size, spacecraft sensors with resolutions of 1 km or more are unlikely to detect the individual lightning channels. Instead, the energy from the lightning channel is scattered within the cloud, thereby broadening the apparent area. All of these measurements of lightning flash area and flash rate have involved manual manipulation and analysis of the video or film data. Only a small percentage of the Space Shuttle lightning video has been analyzed. An attempt is made to combine the use of real-time digital disk system and an automated analysis routine in order to overcome this limitation and make processing of a sequence of video frames a much less labor-intensive task.
Document ID
19930063982
Document Type
Conference Paper
Authors
Pitts, David E. (NASA Johnson Space Center Houston, TX, United States)
Vaughan, Otha H., Jr. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Sapp, Clyde A. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Helms, David (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Chambers, Mark (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Jaklitch, Pat (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Duncan, Mike (Lockheed Engineering & Sciences Co. Houston, TX, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: IGARSS '92; Proceedings of the 12th Annual International Geoscience and Remote Sensing Symposium, Houston, TX, May 26-29, 1992. Vol. 2 (A93-47551 20-43)
Subject Category
METEOROLOGY AND CLIMATOLOGY
Distribution Limits
Public
Copyright
Other

Related Records

IDRelationTitle19930063554Analytic PrimaryIGARSS '92; Proceedings of the 12th Annual International Geoscience and Remote Sensing Symposium, Houston, TX, May 26-29, 1992. Vols. 1 & 2