Ground‐level observation of a terrestrial gamma ray flash initiated by a triggered lightning
نویسندگان
چکیده
منابع مشابه
Lightning mapping observation of a terrestrial gamma‐ray flash
[1] We report the observation with the North Alabama Lightning Mapping Array (LMA) related to a terrestrial gamma‐ray flash (TGF) detected by RHESSI on 26 July 2008. The LMA data explicitly show the TGF was produced during the initial development of a compact intracloud (IC) lightning flash between a negative charge region centered at about 8.5 km above sea level (−22°C temperature level) a hig...
متن کاملConstraints on terrestrial gamma ray flash production from satellite observation
[1] Terrestrial gamma-ray flash (TGF) production has been modeled by several emission mechanisms. In spite of extensive studies of these mechanisms and the existing satellite data, significant uncertainties exist about the nature of the source. In this paper, we present a method to develop approximate product ion-mechanism-independent constraints on TGF production on the basis of Monte Carlo si...
متن کاملObservations of Terrestrial Gamma-Ray Flash Electrons
Terrestrial gamma-ray flash (TGF) emissions are predicted to be accompanied by energetic electron emissions. These electrons have been suggested to explain several anomalous TGF observations by the RHESSI and BATSE spacecraft. These electrons additionally provide a new window for study of TGFs as they carry additional information about the source through their pitch angle / arrival time distrib...
متن کاملSimultaneous observations of optical lightning and terrestrial gamma ray flash from space
[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....
متن کاملObservation of a gamma-ray flash at ground level in association with a cloud-to-ground lightning return stroke
[1] Terrestrial gamma-ray flashes (TGFs) are bright, sub-millisecond bursts of gamma-rays, originating within the Earth’s atmosphere. Most TGFs have been detected by spacecraft in low-Earth orbit. Only two TGFs have previously been observed from within our atmosphere: one at ground level and one from an aircraft at 14.1 km. We report on a new TGF-like gamma-ray flash observed at ground level, d...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 2016
ISSN: 2169-897X,2169-8996
DOI: 10.1002/2015jd024426