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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 29, issue 1
Ann. Geophys., 29, 91–96, 2011
https://doi.org/10.5194/angeo-29-91-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 29, 91–96, 2011
https://doi.org/10.5194/angeo-29-91-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

ANGEO Communicates 10 Jan 2011

ANGEO Communicates | 10 Jan 2011

Multiflash whistlers in ELF-band observed at low latitude

Ashutosh K. Singh1, K. K. Singh1, S. B. Singh1,2, A. K. Singh1, and Lalmani3 Ashutosh K. Singh et al.
  • 1Department of Physics, Banaras Hindu University, Varanasi, India
  • 2Department of Physics, Maharaja College, V. K. S. University, Ara, Bihar, India
  • 3Department of Physics, National Institute of Technology, Srinagar, Kashmir, India

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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