Long period fading of LF radio signals and geomagnetic activity during major meteor showers

An observed association of long period fadings of the field strength of LF radio signals with major meteor showers as also with high geomagnetic activity suggests a correlation between the meteoric and magnetic phenomena. The correlation is studied by using auroral electrojet indices and the incidence of meteor showers for a period of four years. The results indicate a significant correlation between the meteoric and magnetic activity. A critical examination of these results suggests that the ionized debris of meteors dumped into the polar region, besides producing geomagnetic disturbances, may also cause a localized enhancement of temperature of the polar atmosphere. This localized source of high temperature may, in turn, cause internal atmospheric gravity waves which travel to lower latitudes and produce the observed long period fading of the LF radio signal during major meteor showers