Time harmonic solutions for a long horizontal wire over the ground with grazing incidence

A parametric study of the current responses on a long horizontal wire over the ground with frequencies ranging from 10 kHz to 100 MHz, earth conductivities of
10^{-1}, 10^{-2}
, and
10^{-3}
S/m, and wire heights of 10, 5, and 1 m. These current responses for typical wire lengths are given for a grazing incident plane wave and an incident lateral wave.