EFFECTS IONS IONOSPHERIC REFLECTION COEFFICIENTS FOR VLF RADIO WAVES

Abstract

Effects of positive ions on the ionospheric reflection coefficients for very low frequency radio waves are examined with special attention to the lower hybrid resonance in which ions play the principal role. The ionosphere is assumed to be uniform and sharply bounded and impressed with a horizontal static magnetic field. The reflection coefficients are calculated for VLF radio waves which are incident perpendicularly to the static magnetic field with their electric field in the plane of incidence. It is shown that ions should be taken into consideration on the nighttime reflection coefficients for grazing incidence.