In ch. 7 it was shown that at most levels in a slowly varying stratified ionosphere, and for radio waves of frequency greater than about 100 kHz, the propagation can be described by approximate ...

The general theory of wave propagation, with applications to radar ... of studies that will assist the radar engineer in solving the most common types of problem. The effects of propagation conditions ...

Particles subjected to a P wave move in the same direction that the wave is moves in; it is the direction that the energy is traveling in, sometimes called the “direction of wave propagation.” ...