Thundercloud Configurations Favorable for Radiation Enhancement in Surface Detectors at Aragats

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.

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Hripsime Mkrtchyan: “Thundercloud Configurations Favorable for

High-Energy Physics in Atmosphere: In Situ Measurements of the

Intense Particle Showers from Thunderclouds Observed on Mt

The prolonged gamma ray enhancement and the short radiation burst

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Highlights of Aragats Research - Cosmic Ray Division

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Space-temporal structure of the thunderstorm ground enhancements

Highlights of Aragats Research - Cosmic Ray Division

High-Energy Physics in Atmosphere: In Situ Measurements of the

Characteristics of the GLE detected by ACE/SIS, GOES-8 and ASEC

PDF) Origin of enhanced gamma radiation in thunderclouds

Layout of the new ASEC data acquisition system. Several detector

Types of lightning discharges that abruptly terminate enhanced