DocumentCode
2039860
Title
Leader derived initial conditions for a lightning return stroke
Author
Gardner, R.L.
Author_Institution
Consultant, 6152 Manchester Park Circle, Alexandria, VA 22310-4957, USA
fYear
2009
fDate
14-18 Sept. 2009
Firstpage
130
Lastpage
132
Abstract
Understanding the early growth of the lightning discharge is important because that part of the discharge evolution establishes the high-frequency transmissions from lightning. In this paper, we calculate the distribution of fields and charges as they spread radially from the center of the channel after the charges are deposited by the stepped or dart leader. This information will be used for initial conditions for a detailed tip growth calculation. It is found that the charges, that are 0.3-3 mC/m on average, spread over a substantial area due to the self fields.
Keywords
atmospheric chemistry; clouds; lightning; air chemistry parameter; cloud-to-ground return stroke; dart leader; high-frequency transmission; leader derived initial conditions; lightning discharge; lightning return stroke; stepped leader; Charge carriers; Chemistry; Electric breakdown; Electron mobility; Equations; Lightning; Plasma sources; Spontaneous emission;
fLanguage
English
Publisher
ieee
Conference_Titel
Electromagnetics in Advanced Applications, 2009. ICEAA '09. International Conference on
Conference_Location
Torino
Print_ISBN
978-1-4244-3385-8
Electronic_ISBN
978-1-4244-3386-5
Type
conf
DOI
10.1109/ICEAA.2009.5297578
Filename
5297578
Link To Document