Multiflash whistlers in ELF-band observed at low latitude

Ashutosh K. Singh, K. K. Singh, S. B. Singh, A. K. Singh, Lalmani
2011 Annales Geophysicae  
Multiflash whistler-like event in the ELF-band, observed during March 1998 at low latitude station Jammu, is reported. The most prominent feature of these events is the multiflash nature along with the decrease in frequency within a very short span of time resembling similar to terrestrial whistlers. The events have a significantly smaller time duration (0.5-3.5 s) than those reported earlier from high, mid and low latitudes and also display a diurnal maximum occurring around 09:30 h (IST).
more » ... 09:30 h (IST). There have been similar reportings from other latitudes, but whistlers in the ELF-band with a multiflash nature along with a precursor emission have never been reported. Lightning seems to be the dominant source for the ELF whistlers reported here.
doi:10.5194/angeo-29-91-2011 fatcat:nz5hknmbdrgd5nsxu5kh4niure