Physics – Plasma Physics
Scientific paper
May 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jgra..11500e23s&link_type=abstract
Journal of Geophysical Research, Volume 115, Issue A11, CiteID A00E23
Physics
Plasma Physics
1
Atmospheric Processes: Lightning, Electromagnetics: Plasmas, Space Plasma Physics: Ionization Processes (2423), Atmospheric Processes: Atmospheric Electricity, Atmospheric Processes: Stratosphere/Troposphere Interactions
Scientific paper
The microsatellite Tatiana recently detected two scales of the UV flash duration: 1-4 ms and 10-64 ms. This paper studies the atmospheric electricity phenomena that can serve as a source for short-millisecond-range flashes. It is shown that UV flashes in the millisecond scale detected by Tatiana may be explained as generated by gigantic blue jets (GBJ). The influence of an assumed self-consistent governing electric field in the GBJ streamer zone on the UV pulse shape and duration is revealed. It is also shown that red sprites can be a source for UV flashes with similar temporal profiles but at much lower intensity. The model results are also compared with the observations made by the Imager of Sprites and Upper Atmospheric Lightnings imager on board the FORMOSAT-2 satellite.
Milikh Gennady M.
Shneider Mikhail N.
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