- 1Department of Physics and Technology, University of Bergen, Norway
- 2NASA Marshall Space Flight Center, Huntsville, USA
- 3Department of Atmospheric Science, Earth System Science Center, University of Alabama, Huntsville, USA
During the Airborne Lightning Observatory for FEGS and TGFs (ALOFT) campaign conducted in the summer of 2023, hundreds of gamma-ray glows were observed. Numerous glow regions, each consisting of several individual glows, were observed as the aircraft passed over active thunderstorms (Marisaldi et al. 2024). We will investigate the mechanisms behind the termination of the individual glows, focusing on whether specific types of discharges are responsible or if the glows terminate themselves. We will combine observations from different instruments onboard the aircraft, including gamma-ray detectors, electric field change meters and photometers. Lightning discharges will be characterized by optical emissions and data from on-board electric field change meters. We also couple this with detections by the ground-based lightning location network GLD360.
References:
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Marisaldi, M., Østgaard, N., Mezentsev, A., Lang, T., Grove, J. E., Shy, D., Heymsfield, G. M., Krehbiel, P., Thomas, R. J., Stanley, M., Sarria, D., Schultz, C., Blakeslee, R., Quick, M. G., Christian, H., Adams, I., Kroodsma, R., Lehtinen, N., Ullaland, K., Yang, S., Qureshi, B. H., Søndergaard, J., Husa, B., Walker, D., et al. (2024). Highly dynamic gamma-ray emissions are common in tropical thunderclouds. Nature. https://doi.org/10.1038/s41586-024-07936-6
How to cite: Bjørge-Engeland, I., Østgaard, N., Marisaldi, M., Mezentsev, A., Fuglestad, A. N., Sarria, D., Lehtinen, N., Lang, T. J., Schultz, C., Christian, H., and Quick, M. G.: Investigating the termination mechanisms of gamma-ray glows observed during the ALOFT aircraft campaign, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-16451, https://doi.org/10.5194/egusphere-egu25-16451, 2025.
