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Multiflash whistlers in ELF-band observed at low latitude
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Abstract. 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). 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.
Title: Multiflash whistlers in ELF-band observed at low latitude
Description:
Abstract.
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).
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.
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