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Transfer of electrical space charge from corona between ground and thundercloud: Measurements and modelingThe evolution of the vertical electric field profile deduced from simultaneous field measurements at several levels below a thundercloud shows the development of a space charge layer at least up to 600 m. The average charge density in the whole layer from 0 m to 600 m can reach about 1 nC m(exp -3). The ions are generated at the ground by corona effect and the production rate is evaluated with a new method from the comparison of field evolutions at the ground and at altitude after a lightning flash. The modeling of the relevant processes shows tht ground corona accounts for the observed field evolutions and that the aerosol particles concentration has a very large effect on the evolution of corona ions. However, with a realistic value for this concentration a large amount of ground corona ions reach the level of 600 m.
Document ID
19950032588
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Soula, Serge
(Paul Sabatier Univ. Toulouse, France)
Date Acquired
August 16, 2013
Publication Date
May 20, 1994
Publication Information
Publication: Journal of Geophysical Research
Volume: 99
Issue: D5
ISSN: 0148-0227
Subject Category
Meteorology And Climatology
Distribution Limits
Public
Copyright
Other
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