Reply [to “‘On the field representations in the ELF range’”]

More on field representation in the ELF range

“…Galejs [1972] contends that the phase velocity and attenuation rate implied by the results of Johler and Lewis [1969] are 'mutually inconsistent' for the stratified model. In reply, Lewis and Johler [1972] point out that Galejs [1972] makes use of the normalized surface impedance evaluated at a specific height for both the zonal harmonics and mode theory representations and that this concept is invalid for diffuse stratified ionospheres. They reject the usual concept of a single important mode (n = 0) at ELF and contend that the anomalously high phase volocities calculated for their stratified model is explainable in terms of higher-order propagating modes.…”