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Если Вы ощутили землетрясение, пожалуйста, сообщите о нёмHigh-Altitude Discharges and Whistlers of Volcanic Thunderstorms
- Federal State Budget Research Institution Institute of Cosmophysical Research and Radio Wave Propagation, Far Eastern Branch of the Russian Academy of Sciences
Abstract: The results of the observations of atmospherics and whistlers initiated by high-altitude
electrical discharges that occurred during the eruption of the Kamchatka volcanoes (Bezymianny and
Shiveluch (Russia))on 7 and 10 April 2023 are presented. Recording of atmospherics and associated
whistlers was carried out by a VLF (very low frequencies) radio direction finder. Two-hop whistlers
were identified by dispersion coefficient, which corresponded to the double passage of the signal
from Kamchatka to Australia and back. The heights of the electric discharges were determined by
means of interferograms of direct and reflected from the ionosphere radiofrequency atmospherics.
The high-altitude distribution of an electric discharge is obtained, the penetration of which into the
ionosphere is responsible for the generation of whistlers. The characteristics of volcanic electrical
discharges and whistlers can be used to estimate the height of an explosive eruption.
Malkin, E.I.; Shevtsov, B.M.; Cherneva, N.V.; Kazakov, E.A.; Lichtenberger, J. High-Altitude Discharges and Whistlers of Volcanic Thunderstorms. Atmosphere 2024, 15, 1503. https://doi.org/10.3390/atmos15121503
