In-Flight Observation of Gamma Ray Glows by ILDAS

An Airbus A340 aircraft flew over Northern Australia with the In-Flight Lightning Damage Assessment System (ILDAS) installed onboard. A long-duration gamma ray emission was detected. The most intense emission was observed at 12 km altitude and lasted for 20 s. Its intensity was 20 times the backgrou...

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Veröffentlicht in:Journal of geophysical research. Atmospheres : JGR. - 1998. - 122(2017), 23 vom: 16. Dez., Seite 12801-12811
1. Verfasser: Kochkin, Pavlo (VerfasserIn)
Weitere Verfasser: van Deursen, A P J, Marisaldi, M, Ursi, A, de Boer, A I, Bardet, M, Allasia, C, Boissin, J-F, Flourens, F, Østgaard, N
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Journal of geophysical research. Atmospheres : JGR
Schlagworte:Journal Article ILDAS aircraft gamma ray glow lightning
Beschreibung
Zusammenfassung:An Airbus A340 aircraft flew over Northern Australia with the In-Flight Lightning Damage Assessment System (ILDAS) installed onboard. A long-duration gamma ray emission was detected. The most intense emission was observed at 12 km altitude and lasted for 20 s. Its intensity was 20 times the background counts, and it was abruptly terminated by a distant lightning flash. In this work we reconstruct the aircraft path and event timeline. The glow-terminating flash triggered a discharge from the aircraft wing that was recorded by a video camera operating onboard. Another count rate increase was observed 6 min later and lasted for 30 s. The lightning activity as reported by ground networks in this region was analyzed. The measured spectra characteristics of the emission were estimated
Beschreibung:Date Revised 13.03.2024
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:2169-897X
DOI:10.1002/2017JD027405