DEMETER satellite observations of lightning‐induced electron precipitation

DEMETER spacecraft detects short bursts of lightning‐induced electron precipitation (LEP) simultaneously with newly‐injected upgoing whistlers, and sometimes also with once‐reflected (from conjugate hemisphere) whistlers. For the first time causative lightning discharges are definitively geo‐located for some LEP bursts aboard a satellite. The LEP bursts occur within <1 s of the causative lightning and consist of 100–300 keV electrons. First in‐situ observations of large regions of enhanced background precipitation are presented. The regions are apparently produced and maintained by high rate of lightning within a localized thunderstorm.