Lightning-induced electron heating in the mesosphere

Details Lightning-induced electron heating in the mesosphere Lightning-induced electron heating in the mesosphere

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998georl..25.2389e&link_type=abstract

Geophysical Research Letters, Volume 25, Issue 13, p. 2389-2392

Physics

Plasma Physics

Meteorology And Atmospheric Dynamics: Lightning, Meteorology And Atmospheric Dynamics: Mesospheric Dynamics, Meteorology And Atmospheric Dynamics: Theoretical Modeling, Space Plasma Physics: Numerical Simulation Studies

Scientific paper

A multiple-fluid, quasi-electrostatic simulation model is used to examine the effects of lightning on the atmosphere between 20 km and 90 km altitude. Two principal new results are obtained. (1) First, significant space charge is found in the altitude range 20 to 40 km during a positive, but not negative, cloud-to-ground (CG) discharge. (2) Second, a lightning flash is shown to increase total conductivity in the altitude range of 20 to 40 km by at least an order of magnitude, 10 s after the discharge. This is due to the lingering effects of the ion and electron redistribution caused by the lightning discharge.

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