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Triggered lightning strikes to aircraft and natural intracloud dischargesThe physical model of Mazur (1989) for triggering lightning strikes by aircraft was used to interpret the initiation of intracloud flashes observed by the French UHF-VHF interferometric system. It is shown that both the intracloud discharges and airplane-triggered lightning strikes were initiated by simultaneous bidirectional development of the negative stepped leader and the positive leader-continous current process. However, the negative stepped leader phase in triggered flashes is of shorter duration (tens of milliseconds), than that in intracloud flashes (usually hundreds of milliseconds). This is considered to be due to the fact that, on the aircraft there is a single initiation process, versus the numerous initiation processes that occur inside the cloud.
Document ID
19890047787
Document Type
Reprint (Version printed in journal)
Authors
Mazur, Vladislav (NOAA, National Severe Storms Laboratory, Norman OK, United States)
Date Acquired
August 14, 2013
Publication Date
March 20, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
AIR TRANSPORTATION AND SAFETY
Distribution Limits
Public
Copyright
Other