Abstract
AbstractA terrestrial gamma‐ray flash (TGF) associated with an Elve was recently reported by the Atmosphere‐Space Interactions Monitor (ASIM) (Neubert et al., 2020, https://doi.org/10.1126/science.aax3872). An extremely low frequency electromagnetic field pulse coinciding with this event was detected by two stations of our World Extremely Low Frequency (ELF) Radiolocation Array (WERA) project from a distance of more than 10,000 km. The recorded signal allowed us to radiolocate the source, determine its polarity, and calculate the charge moment of the associated atmospheric discharge. Our analysis shows that this TGF was associated with a powerful discharge that had a positive polarity and the charge moment p ≈ 125 C·km.
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