Title :
Underground electromagnetic fields generated by the return strokes of lightning flashes
Author_Institution :
High Voltage Res., Uppsala Univ., Sweden
fDate :
2/1/2001 12:00:00 AM
Abstract :
In this paper, equations are developed in the time domain to represent lightning generated electromagnetic (EM) fields at different depths below the ground surface. The equations connect underground EM fields to surface fields that can easily be measured or calculated. Numerous examples are given to illustrate how the signature of the electric and magnetic field vary as a function of depth as well as conductivity
Keywords :
electrical conductivity; electromagnetic fields; electromagnetic induction; lightning; time-domain analysis; EM induction effects; conductivity; depths; electric field signature; ground surface; lightning flashes; lightning generated EM fields; lightning generated electromagnetic fields; magnetic field signature; return strokes; surface fields; time domain equations; underground EM fields; underground electromagnetic fields; Conductivity; Earth; Electromagnetic fields; Electromagnetic measurements; Electromagnetic modeling; Equations; Lightning; Magnetic field measurement; Mathematical model; Voltage;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
