This adds additional information relative to my original inquiry concerning electrical charge distribution at the earth's surface.
The following report suggests that the "conductivity" in the induced charge area is substantially different from areas removed from the influence of the induced charge.
Induced Charge Conductivity
"The primary destination of the strike is the induced charge on the ground surrounding the strike point."
There was no mention of any attempt to measure the "relative" conductivity in the induced charge area.
Just how much is "earth surface conductivity" influenced by the presence or lack of "free electrons" induced by the ionospheric charge and changing overhead atmospheric electrical events? The induced charge can be either positive or negative depending upon the "overhead" charge.
