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Kiryukhin A.V., Bergal-Kuvikas Olga, Lemzikov M.V. Magmatic activity of Klyuchevskoy volcano triggering eruptions of Bezymianny volcano based on seismological and petrological data // Journal of Volcanology and Geothermal Research. 2023. doi: 10.1016/j.jvolgeores.2023.107892.
Korolev S.P., Urmanov I.P., Sorokin A.A., Girina O.A. Detecting Volcano Thermal Activity in Night Images Using Machine Learning and Computer Vision // Remote Sensing. 2023. Vol. 15. Vol. 19. № 4815.
One of the most important tasks when studying volcanic activity is to monitor their thermal radiation. To fix and assess the evolution of thermal anomalies in areas of volcanoes, specialized hardware-thermal imagers are usually used, as well as specialized instruments of modern satellite systems. The data obtained with their help contain information that makes it relatively easy to track changes in temperature and the size of a thermal anomaly. At the same time, due to the high cost of such complexes and other limitations, thermal imagers sometimes cannot be used to solve scientific problems related to the study of volcanoes. In the current paper, day/night video cameras with an infrared-cut filter are considered as an alternative to specialized tools for monitoring volcanoes’ thermal activity. In the daytime, a camera operated in the visible range, and at night the filter was removed, increasing the camera’s light sensitivity by allowing near-infrared light to hit the sensor. In that mode, a visible thermal anomaly could be registered on images, as well as other bright glows, flares, and other artifacts. The purpose of this study is to detect thermal anomalies on night images, separate them from other bright areas, and find their characteristics, which could be used for volcano activity monitoring. Using the image archive of the Sheveluch volcano as an example, this article presents the results of developing a computer algorithm that makes it possible to find and classify thermal anomalies on video frames with an accuracy of 98%. The test results are presented, along with their validation based on thermal activity data obtained from satellite systems.
Ladygin V.М., Girina O.A., Frolova Yu.V. The Petrophysical Properties and Strength of Extrusive Rocks Discharged by Bezymianny Volcano, Kamchatka // Journal of Volcanology and Seismology. 2023. Vol. 17. № 3. P. 159-174.
This is the first petrophysical study of extrusive rocks (dacites to andesites) discharged by Bezymianny Volcano. We provide a comparative description of properties for extrusive rocks in accordance with identified age groups. We show the dynamics in the variation of extrusive rock properties in relation to their ages, with the result that the older a rock the higher are its density, strength, and elastic parameters. Rocks petrophysical features are compared between extrusive domes and lava flows. We argue for petrophysical properties to be applicable for deriving more accurate results for the genesis of rocks having similar petrophysical properties, in particular, rocks of extrusive and effusive origin.
Агибалов А.О., Бергаль-Кувикас О.В., Зайцев В.А., Макеев А.М., Сенцов А.А. Взаимосвязь морфометрических параметров рельефа, характеризующих трещиноватость верхней части литосферы, и проявлений вулканизма Малко-Петропавловской зоны // Геофизические процессы и биосфера. 2023. Т. 22. № 2. С. 122-133. doi: 10.21455/GPB2023.2-5.
Бергаль-Кувикас О.В., Буслов М.М., Бушенкова Н.А., Долгая А.А. Переход от континентальной окраины Камчатки к островной дуге Курильских островов: Особенности проявления вулканизма, деформации земной коры и геофизические параметры слэба // Геология и геофизика. 2023. doi: 10.15372/GiG2023136.
Гирина О.А., Гордеев Е.И., Озеров А.Ю., Маневич А.Г., Мельников Д.В., Романова И.М., Нуждаев А.А. 30 лет Камчатской группе реагирования на вулканические извержения (KVERT) // Вулканизм и связанные с ним процессы. Материалы XXVI ежегодной научной конференции, посвящённой Дню вулканолога, 30-31 марта 2023 г., Петропавловск-Камчатский. Петропавловск-Камчатский: ИВиС ДВО РАН. 2023. С. 34-37.
Гирина О.А., Лупян Е.А., Маневич А.Г., Мельников Д.В., Нуждаев А.А., Сорокин А.А., Романова И.М., Крамарева Л.С., Уваров И.А., Королев С.П., Демянчук Ю.В., Цветков В.А. Дистанционный мониторинг эксплозивных извержений вулкана Безымянный в 2023 г. // Материалы 21-й Международной конференции "Современные проблемы дистанционного зондирования Земли из космоса". М.: ИКИ РАН. 2023. № XXI.G.92.
Гирина О.А., Лупян Е.А., Мельников Д.В., Маневич А.Г., Нуждаев А.А., Бриль А.А., Озеров А.Ю., Крамарева Л.С., Сорокин А.А., Королев С.П. Мониторинг пароксизмального извержения вулкана Шивелуч 10-13 апреля 2023 г. дистанционными методами // Материалы 21-й Международной конференции "Современные проблемы дистанционного зондирования Земли из космоса". М.: ИКИ РАН. 2023. № XXI.B.446.
Сорокин А.А. (4), Королев С.П. (4)
Гирина О.А., Лупян Е.А., Сорокин А.А., Романова И.М., Маневич А.Г., Мельников Д.В., Крамарева Л.С., Королев С.П., Нуждаев А.А., Уваров И.А. Информационные технологии для выявления и анализа термальной активности вулканов Камчатки и Курильских островов в 2021-2022 гг. // Информационные технологии и высокопроизводительные вычисления: материалы VII Международной науч.- практ. конф., Хабаровск, 11-13 сентября 2023 г. Хабаровск: ХФИЦ ДВО РАН. 2023. С. 52-56.
Based on the processing of data from daily satellite monitoring carried out using the information system "Remote monitoring of the activity of volcanoes in Kamchatka and the Kuril Islands (VolSatView)", an analysis of the 2021-2022 thermal activity of Kamchatka and the Kuril Islands volcanoes is presented.
Гирина О.А., Лупян Е.А., Хорват А., Мельников Д.В., Маневич А.Г., Нуждаев А.А., Бриль А.А., Озеров А.Ю., Крамарева Л.С., Сорокин А.А. Анализ развития пароксизмального извержения вулкана Шивелуч 10–13 апреля 2023 года на основе данных различных спутниковых систем // Современные проблемы дистанционного зондирования Земли из космоса. 2023. Т. 20. № 2. С. 283-291.
Sheveluch volcano is the most active volcano in Kamchatka. The paroxysmal explosive eruption of the volcano that destroyed the lava dome in the volcanic crater continued on April 10–13, 2023. According to various satellite data, the height of the separate eruptive clouds probably exceeded 15 km a. s. l. A powerful cyclone, which dominated the entire Kamchatka Peninsula, pulled the eruptive cloud to the west, turned it to the south, stretched it to the north and directed it to the east from the volcano. The dynamics of the development of ash and aerosol clouds of this eruption is reflected in the animations made from a series of Himawari-9 satellite images in the VolSatView IS from 08:00 UTC (Coordinated Universal Time) on April 10 to 07:50 UTC on April 14 ( and of the Arctica-M1 satellite from 16:00 to 21:30 UTC April 10 ( It was noted that the eruptive column was not vertical: for example, at the initial moment of the eruption on April 10 at 13:20 UTC, it deviated to the north-northeast, on April 11 at 12:00 UTC to the northwest, and on April 12 at 07:00 UTC to the southwest. During the paroxysmal eruption, sulfur dioxide continuously entered the atmosphere, the maximum amount of which was released on April 10–11, as a result of the explosive destruction of the lava dome of the Sheveluch volcano. Ash clouds along with aerosol clouds on April 10–13 were stretched into a strip more than 3500 km long from west to northeast. On April 21–22, the Sheveluch aerosol cloud was observed in the region of the Scandinavian Peninsula. The total area of the territory of Kamchatka and the Pacific Ocean where ash and aerosol plumes and clouds were observed during the April 10–13 eruption was about 3280 thousand km2. The paroxysmal eruption of Sheveluch volcano belongs to the sub-Plinian type because it is characterized by a big height of eruptive cloud and a long event duration. For this eruption, the VEI (Volcanic Explosivity Index) is estimated to be 3–4. A detailed description of the paroxysmal explosive eruption of Sheveluch volcano and the spread of the eruptive cloud was performed based on data from various satellite systems (Himawari-9, NOAA-18/19, GOES-18, Terra, Aqua, JPSS-1, Suomi NPP, Arctica-M1 etc.) in the information system “Remote monitoring of the activity of the volcanoes of the Kamchatka and the Kuriles” (VolSatView,