NDLI: Simultaneous observations of optical lightning and terrestrial gamma ray flash from space

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Simultaneous observations of optical lightning and terrestrial gamma ray flash from space

Content Provider	Semantic Scholar
Author	Østgaard, Nikolai Gjesteland, Thomas Carlson, Brant E. Collier, Andrew B. Cummer, Steve A. Lu, Gaopeng Christian, Hugh J.
Copyright Year	2013
Abstract	[1] We present the very first simultaneous detection from space of a terrestrial gamma ray flash (TGF) and the optical signal from lightning. By fortuitous coincidence, two independent satellites passed less than 300 km from the thunderstorm system that produced a TGF that lasted 70 s. Together with two independent measurements of radio emissions, we have an unprecedented coverage of the event. We find that the TGF was produced deep in the thundercloud at the initial stage of an intracloud (IC) lightning before the leader reached the cloud top and extended horizontally. A strong radio pulse was produced by the TGF itself. This is the first time the sequence of radio pulses, TGF, and optical emissions in an IC lightning flash has been identified. Citation: Østgaard, N., T. Gjesteland, B. E. Carlson, A. B. Collier, S. A. Cummer, G. Lu, and H. J. Christian (2013), Simultaneous observations of optical lightning and terrestrial gamma ray flash from space, Geophys. Res. Lett., 40, doi:10.1002/grl.50466.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://people.ee.duke.edu/~cummer/reprints/155_Ostgaard13_GRL_TGFAndLightningFromSpace.pdf
Language	English
Access Restriction	Open
Subject Keyword	Adobe Flash Carlson's theorem Emission - Male genitalia finding Flash memory Gamma Rays Index of coincidence Interferon Type II LU decomposition Lightning Satellite Viruses Terrestrial television Transforming Growth Factors Trivial Graph Format
Content Type	Text
Resource Type	Article

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