Computation of the horizontal electric field due to lightning in the air-ground interface of a multilayered stratified ground using PSpice

The soil resistivity is an important parameter to consider when dealing with the lightning stroke electric field calculation. The usual methodologies were developed considering the soil as a homogeneous and isotropic medium but the actual soil is usually better represented by horizontal layers of different resistivities. This paper presents a PSpice based methodology for the calculation of the horizontal electric field component originated in the soil resistivity considering a multilayered stratified soil.