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Vol. 33, issue 03, article # 13

Sosnin E. A., Kuznetsov V. S., Panarin V. A., Skakun V. S., Tarasenko V. F. Laboratory modeling of the influence of volcanic matter on the formation of transient phenomena near the boundary between the middle and lower atmosphere. // Optika Atmosfery i Okeana. 2020. V. 33. No. 03. P. 227–231. DOI: 10.15372/AOO20200313 [in Russian].
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Abstract:

It was shown that heating of the volcanic material taken on the Etna volcano (Italy) by apokampic discharge reduces the voltage at which a positive streamer, the apokamp, starts from the discharge channel and increases its propagation speed. The luminescence spectra show that these processes are accompanied by the emission of easily ionizable K and Na, which is consistent with data on the elemental composition of Etna samples. Based on the data obtained, a hypothesis is proposed that in places of increased volcanic activity at altitudes of 10–18 km (at the level of the troposphere), the appearance probability of blue jets and starters increases.

Keywords:

apokampic discharge, volcanic matter, blue stream, transient light phenomena

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