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- Federal State Budget Research Institution Institute of Cosmophysical Research and Radio Wave Propagation, Far Eastern Branch of the Russian Academy of Sciences
Abstract—This paper presents an analysis of recorded variations (anomalies) in the potential gradient of elec-
trical field in the atmosphere caused by the propagation of eruption plumes discharged by eruptions of Shive-
luch and Bezymianny volcanoes in Kamchatka. The anomalies were recorded at various distances from erup-
tion centers and under different conditions of atmospheric stratification. These conditions have enabled us to
show that the eruption plumes of Shiveluch and Bezymianny possessed a 3D electrostatic structure that is
consistent with a known phenomenological model derived on the basis of surveys conducted on various vol-
canoes worldwide. According to this model, the top of an eruption plume contains a positive volumetric elec-
trostatic charge, while the respective charges are negative in the middle, and positive in the lower part of the
plume.
"Akbashev R.R., Malkin E.I., Cherneva N.V. A characteristic electrostatic structure of eruptive plumes emitted by large explosive eruptions of shiveluch and bezymianny volcanoes, Kamchatka // Journal of Volcanology and Seismology. 2024. Т. 18. № 4. С. 323-339. DOI: 10.1134/S0742046324700672 Акбашев, Р. Р. Характерная электростатическая структура эруптивных облаков сильных эксплозивных извержений вулканов Шивелуч и Безымянный (п-ов Камчатка) / Р. Р. Акбашев, Е. И. Малкин, Н. В. Чернева // Вулканология и сейсмология. – 2024. – № 4. – С. 21-39. – DOI 10.31857/S0203030624040026"
