Physics
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jastp..72..409m&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 72, Issue 5-6, p. 409-418.
Physics
1
Positive Lightning Discharges, Vlf Atmospherics, Elf Pulses, Sprite
Scientific paper
We have considered spatial distributions of positive lightning discharges in the east of Siberia for the summer seasons of 2003-2007 and properties of their electromagnetic signals with the ELF "slow tail", which, as is known, can be accompanied by sprites. There are two main regions of positive discharges located in the south and west of Yakutsk. Two other "centers" (the northeastern and the eastern) are located in high-mountainous regions. In these regions the positive discharges intensity can exceed the negative discharge intensity. The electromagnetic signals in the ELF range (usually in the form of two half-cycles) were observed after the VLF atmospherics were recorded in the high-latitude regions. The delay of ELF pulses relative to the corresponding atmospherics was 0-7 ms. The long (up to 350 ms) events of quasi-periodic ELF oscillations with the period of about 7 ms (which corresponds to the quasi-period of ELF pulses) were revealed.
Karimov Rivkat
Kozlov Vladimir I.
Mullayarov Viktor A.
Toropov A. A.
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