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Detailed Reference Information |
Baginski, M.E., Hale, L.C. and Olivero, J.J. (1988). Lightning-related fields in the ionosphere. Geophysical Research Letters 15: doi: 10.1029/88GL03147. issn: 0094-8276. |
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Lightning-related transient electric fields and conduction current densities due to the redistribution of charge by the return stroke, but not directly associated with the high-intensity current channel, are investigated via a simulation of Maxwell's equations. The investigation presents evidence to suggest that the lightning-related charge redistribution and subsequent relaxation, rather than the high intensity current, is the source of the major component of the transient field and energy coupled to the ionosphere. A time domain finite element analysis is employed inthe simulation, using a conductivity profile obtained simulotaneously with electric field measurements which agree, in general terms, with the simulations. It is concluded that prior depictions of these phenomena underestimate the fraction of the total energy that couples to and dissipates within the ionosphere and magnosphere. |
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Abstract |
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Keywords
Electromagnetics, Numerical methods, Electromagnetics, Transient and time domain, Ionosphere, Electric fields, Ionosphere, Ionosphere/atmosphere interactions |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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