Low latitude observations of VLF/LF pulse reflections from the lower ionosphere obtained at nine locations to the east and west of a transmitter in southeastern

This report provides a summary of high latitude ionospheric reflectivity as observed by the USAF's high resolution VLF/LF ionosounder operating in northern Gree

A joint United States - Brazil experiment was conducted near the geomagnetic equator to confirm the theoretically predicted strong dependence of the ionospheric