Glow-terminating terrestrial gamma-ray flashes observed during the ALOFT Campaign

Steven Cummer; Yunjiao Pu; Andrew Mezentsev; Marni Pazos; Morris Cohen; Nikolai Ostgaard; Mark Stanley; Timothy Lang; Martino Marisaldi; J. Eric Grove; Mason Quick; Hugh Christian; Christopher Schultz; Richard Blakeslee; Ian Adams; Phillip Bitzer; Martin Fullekrug; Bilal Qureshi; Bendik Husa; Gerald Heymsfield

doi:https://doi.org/10.5194/egusphere-egu24-3628

[Back] [Session NH1.5]

EGU24-3628, updated on 08 Mar 2024

https://doi.org/10.5194/egusphere-egu24-3628

EGU General Assembly 2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Glow-terminating terrestrial gamma-ray flashes observed during the ALOFT Campaign

Steven Cummer¹, Yunjiao Pu¹, Andrew Mezentsev², Marni Pazos³, Morris Cohen⁴, Nikolai Ostgaard², Mark Stanley⁵, Timothy Lang⁶, Martino Marisaldi², J. Eric Grove⁷, Mason Quick⁶, Hugh Christian⁸, Christopher Schultz⁶, Richard Blakeslee⁹, Ian Adams⁷, Phillip Bitzer⁸, Martin Fullekrug¹⁰, Bilal Qureshi², Bendik Husa², Gerald Heymsfield¹¹, and the additional members of ALOFT team^*

Steven Cummer et al.

¹Duke University, Electrical and Computer Engineering Department (cummer@duke.edu)
²Department of Physics and Astronomy, University of Bergen, Bergen, Norway
³Instituto de Ciencias de la Atmosfera y Cambio Climatico, UNAM, Mexico, Mexico
⁴Georgia Institute of Technology, School of Electrical and Computer Engineering, Atlanta, United States
⁵New Mexico Tech, Socorro, United States
⁶NASA Marshall Space Flight Center, Huntsville, AL, United States
⁷Naval Research Lab DC, Washington, DC, United States
⁸University of Alabama in Huntsville, Huntsville, AL, United States
⁹NASA, Madison, AL, United States
¹⁰University of Bath, Bath, BA2, United Kingdom
¹¹Goddard Space Flight Center NASA, Greenbelt, MD, United States
^*A full list of authors appears at the end of the abstract

The ALOFT campaign targeted aircraft measurements of terrestrial gamma-ray flashes (TGFs) through NASA ER-2 overflights of strong thunderstorms. We report here the analysis of glow-terminating TGFs (GT-TGFs) that occur at the end of some gamma-ray glows. GT-TGFs were generated by most of the observed storms during the campaign and were prolifically generated by two specific storms that were particularly active in gamma ray production. One unique feature of GT-TGFs is that they always occur within several tens of microseconds of a narrow bipolar event (NBE). The characteristics of GT-TGFs and the associated NBE radio emissions will be described in detail.

additional members of ALOFT team:

R. Kroodsma11, D. Sarria2, N. Lehtinen2, K. Ullaland2, S. Yang2, J. Søndergaard2, B. Husa2, D. Walker6, D. Shy7, J. Montanya12, C. Velosa13, O. van der Velde12, P. Krehbiel5, J. A. Roncancio12, J. A. Lopez12, M. Urbani 12, A. Santos13

How to cite: Cummer, S., Pu, Y., Mezentsev, A., Pazos, M., Cohen, M., Ostgaard, N., Stanley, M., Lang, T., Marisaldi, M., Grove, J. E., Quick, M., Christian, H., Schultz, C., Blakeslee, R., Adams, I., Bitzer, P., Fullekrug, M., Qureshi, B., Husa, B., and Heymsfield, G. and the additional members of ALOFT team: Glow-terminating terrestrial gamma-ray flashes observed during the ALOFT Campaign, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-3628, https://doi.org/10.5194/egusphere-egu24-3628, 2024.