Ground detection of terrestrial gamma ray flashes from distant radio signals

Fanchao Lyu, Steven A. Cummer, Michael Briggs, Martino Marisaldi, Richard J. Blakeslee, Eric Bruning, Jennifer G. Wilson, William Rison, Paul Krehbiel, Gaopeng Lu, Eric Cramer, Gerard Fitzpatrick, Bagrat Mailyan, Sheila McBreen, Oliver J. Roberts, Matthew Stanbro

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18 Scopus citations

Abstract

Terrestrial gamma ray flashes (TGFs) are brief bursts of energetic gammy-ray photons generated during thunderstorms, which have been detected almost exclusively by satellite-based instruments. Here we present three lines of evidence which includes the three out of three simultaneously observed pairs, the same occurrence contexts, and the consistent estimated occurrence rate, which indicate a direct relationship between a subset of TGFs and a class of energetic radio signal easily detectable by ground-based sensors. This connection indicates that these gamma ray and radio emissions are two views of the same phenomenon and further enable detection of these TGFs from ground distant radio signals alone. Besides dramatically increasing the detection rate of TGFs, this ground detection approach can identify TGFs in continental and coastal areas that are at latitudes too high for present TGF-detecting satellites and will provide more insights into the mechanism of TGF production.

Original languageEnglish
Pages (from-to)8728-8734
Number of pages7
JournalGeophysical Research Letters
Volume43
Issue number16
DOIs
StatePublished - Aug 28 2016

Keywords

  • energetic in-cloud pulses
  • ground detection
  • lightning
  • terrestrial gamma ray flashes

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    Lyu, F., Cummer, S. A., Briggs, M., Marisaldi, M., Blakeslee, R. J., Bruning, E., Wilson, J. G., Rison, W., Krehbiel, P., Lu, G., Cramer, E., Fitzpatrick, G., Mailyan, B., McBreen, S., Roberts, O. J., & Stanbro, M. (2016). Ground detection of terrestrial gamma ray flashes from distant radio signals. Geophysical Research Letters, 43(16), 8728-8734. https://doi.org/10.1002/2016GL070154