Abstract: The mountainous terrain of Armenia contributes to thunderstorm formation there. Observations for more than a decade at the high (3200 m MSL) Aragats mountain station have demonstrated the presence of runaway electrons, accelerated downward by the electric field of the storm, to produce so-called Thunderstorm Ground Enhancements. More than 500 cases have been observed from 2012 to 2020.
cdn3.vectorstock.com/i/1000x1000/76/82/lightning-s
Locations of the Aragats, Nor Amberd, and Yerevan stations
Space-temporal structure of the thunderstorm ground enhancements
PDF) Thundercloud Project: Exploring high-energy phenomena in
Space-temporal structure of the thunderstorm ground enhancements
Universe, Free Full-Text
Space-temporal structure of the thunderstorm ground enhancements
TGE Electron Energy Spectra: Comment on “Radar Diagnosis of the
Thundercloud Configurations Favorable For Radiation, 58% OFF