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.
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Cummer et al. (2024) studied this question.
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