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AS4.8/NH1.5

High Energy Radiation from Thunderstorms and Lightning. (co-organized)
Convener: Thomas Gjesteland  | Co-Conveners: Sebastien Celestin , Martino Marisaldi 
Orals
 / Tue, 09 Apr, 08:30–12:00  / Room B15
Posters
 / Attendance Tue, 09 Apr, 17:30–19:00  / Yellow Posters
During recent years, high energy radiation from lightning and thunderclouds have been measured from space, by aircrafts, and at ground level. Thunderclouds emit energetic gamma radiation, electrons, and antimatter into space. They also produce continuous energetic radiation, which have been measured at ground level and by aircrafts. High energy radiations have also been detected in association with lightning leaders and laboratory sparks. The physical processes regarding these phenomena are not well established yet, and neither are the effects of these radiations on the upper atmosphere and the near space environment.

In this session, we welcome contributions regarding experimental observations and theoretical studies related to the production of energetic particles from thunderclouds and lightning discharges. Especially, phenomena such as terrestrial gamma ray flashes (TGFs), terrestrial electron beams, thunderstorm ground enhancements, and X-ray observations from lightning and laboratory discharges, as well as their relationships to one another are of great interest.