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 2019
Moiseenko K.B., Malik N.A. Linear inverse problem for inferring eruption source parameters from sparse ash deposit data as viewed from an atmospheric dispersion modeling perspective // Bulletin of Volcanology. 2019. Vol. 81. № 3. P. 19 doi: 10.1007/s00445-019-1281-1.
   Annotation
Determination of the volcanic eruption source parameters—total grain-size distribution and vertical ash mass distribution (VMD) within the source—is carried out on a collection of measured-area samples and granulometry data. For this, the geophysical inverse methods and Hybrid Particle and Concentration Transport Model (HYPACT) driven by wind and turbulence fields simulated with the Regional Atmospheric Modeling System (RAMS) are used. A two-step inversion procedure is proposed to obtain approximate but physically meaningful solution when the total number of ashfall samples is small and it is not possible to make a good initial guess of the source parameters. First, a spectrum of particle fall velocities is estimated by selecting a best-fit subset of aerodynamically distinct subpopulations of free and aggregate particles from the trial set used to simulate a polycomponent ashfall. The singular value decomposition (SVD) analysis is then employed to identify spatial components of the ash emissions’ vertical distribution, as resolvable by the observations. Model validation experiments are conducted for the January 12, 2011, short-duration vulcanian explosion at Kizimen and paroxysmal phase of the December 24, 2006, sub-Plinian eruption at Bezymianny. The derived VMDs exhibit high variability in fine ash content (~ 60–100 wt%) as well as strong secondary maxima in the lower troposphere, likely reflecting the contribution of ash particles fallen out of co-pyroclastic flow ash clouds and partially collapsing eruption columns.
Арсанова Г.И. Роль воды в вулканизме // Вулканология и сейсмология. 2019. № 4. С. 69-80. doi: 10.31857/S0203-03062019469-80.
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Water plays an extremely important role in volcanism: it acts as an evacuator of viscous melts in a variety of ways, which is ensured by the presence of relevant properties of its phase states, which successively changing with the fall of the environmental parameters. In this sense, the supercritical (fluid) state of water is especially significant. The paper provides a summary of fluid properties that are unique in many ways. The properties determine the relationship between water fluid and silicate melt, which in turn explains the cause of volcanic phenomena and the course of eruptions: explosions of different power, the emergence of the so-called fluidized mass, scorching clouds, landslides and breakthroughs on the slopes, the formation of ignimbrites, as well as the mechanism of gas transport to the foot of volcanoes. Both by role and quantity, water is the main volcanic substance, which together with the silicate melt constitutes magma.
Белоусов А.Б., Белоусова М.Г. Морфология, закономерности формирования и остывания лавовых труб извержения вулкана Толбачик 2012-2013 гг. // Материалы XXII региональной научной конференции «Вулканизм и связанные с ним процессы». 2019. С. 36-39.
Бергаль-Кувикас О.В., Bouvet De Maisonneuve Caroline Проблема идентификации маркирующих горизонтов тефры кальдерообразующих извержений Юго-Восточной Азии // ВУЛКАНИЗМ И СВЯЗАННЫЕ С НИМ ПРОЦЕССЫ Материалы XXII Всероссийской научной конференции, посвященной ДНЮ ВУЛКАНОЛОГА. 28-30 марта 2019 г., Петропавловск-Камчатский. 2019. С. 40-43.
Блох Ю.И., Бондаренко В.И., Долгаль А.С., Новикова П.Н., Петрова В.В., Пилипенко О.В., Рашидов В.А., Трусов А.А. Комплексные геолого-геофизические исследования подводного вулканического массива Архангельского (Курильская островная дуга) // Вестник КРАУНЦ. Серия: Науки о Земле. 2019. Вып. 44. № 4. С. 35-50. doi: 10.31431/1816-5524-2019-4-44-35-50.
   Annotation
The article presents the results of integrated geologic-geophysical investigation of the Arkhangelsky submarine volcanic massif, which is located in the Bussol Strait in the central zone of the Kurile Island Arc. The massif consists of amalgamated and eroded volcanic edifices and is built up of endogenous basalts and exogenous tuffs. Rocks and minerals to the exclusion of quartz are hydrothermally altered; moreover they were altered after the formation of tuff. High values of the natural remnant magnetization of dredged rocks are caused by the high content of single-domain and pseudo-single-domain grains of titanomagnetite and magnetite. The Arkhangelsky massif most likely was formed during periods of global geomagnetic disturbances. The authors have revealed feeders of the near-vertical and southeastern trends and causative magnetic blocks with different geometric and magnetic characteristics in the edifice of the massif. A peripheral magma chamber has been revealed between depths of 1100–1200 m. At the southeast foot of the massif we found large landslide blocks.
Гирина О.А., Лупян Е.А., Крамарева Л.С., Мельников Д.В., Маневич А.Г., Сорокин А.А., Гордеев Е.И., Уваров И.А., Кашницкий А.В., Бурцев М.А., Марченков В.В., Мазуров А.А., Константинова А.М., Романова И.М., Мальковский С.И., Королев С.П. Информационная система "Дистанционный мониторинг активности вулканов Камчатки и Курил" (ИС VolSatView): возможности и опыт работы // Информационные технологии в дистанционном зондировании Земли - RORSE 2018. Электронный сборник статей 16-й конференции (12-16 ноября 2018 г., Москва, Россия) (2019 г.). М.: ИКИ РАН. 2019. С. 359-366. https://doi.org/10.21046/rorse2018.359.
   Annotation
The information system "Remote monitoring of Kamchatka and Kuril Islands volcanic activity" (VolSatView IS) was created in 2011. The system provides specialists with access to a variety of information, including long-term archives of remote sensing data needed for remote monitoring of volcanic activity, requiring only a web browser to use the system. Since the launch of the system, the list of available data, as well as tools for their analysis, has been continuously expanding. By now, there is a lot of experience in daily use of the system by the specialists in volcanology. This article describes the current state of the system, including recent developments, such as determination of the height of ash plumes, improvement of the time series analysis tools, implementation of specialized data processing products.
Гирина О.А., Лупян Е.А., Мельников Д.В., Кашницкий А.В., Уваров И.А., Бриль А.А., Константинова А.М., Бурцев М.А., Маневич А.Г., Гордеев Е.И., Крамарева Л.С., Сорокин А.А., Мальковский С.И., Королев С.П. Создание и развитие информационной системы «Дистанционный мониторинг активности вулканов Камчатки и Курил» // Современные проблемы дистанционного зондирования Земли из космоса. 2019. Т. 16. № 3. С. 249-265. https://doi.org/10.21046/2070-7401-2019-16-3-249-265.
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In 2011, the experts of the Institute of Volcanology and Seismology FEB RAS in cooperation with Space Research Institute RAS, Far-Eastern Center of SRC Planeta and Computing Center FEB RAS created the first version of the information system named “Remote Monitoring of Kamchatka and Kuril Islands Volcanic Activity” (IS VolSatView). The system provides experts with access to a variety of information, including long-term archives of remote sensing data needed for remote monitoring of volcanic activity. A number of web interfaces are developed to deal with the data provided by the system. They enable comprehensive data analysis and processing. However working with the system does not require any specialized desktop applications, but only a web browser and Internet connection to use the system. Since the launch of the system, the list of available data, as well as tools for their analysis, has been continuously expanding. By now, there is a lot of experience in daily use of the system by the experts in volcanology and for solving various problems in the studies of volcanoes and volcanic activity. This article describes the current state of the system, including recent developments, such as determination of the height of ash plumes, improvement of the time series analysis tools, implementation of specialized data processing products.
Гирина О.А., Лупян Е.А., Сорокин А.А., Мельников Д.В., Маневич А.Г., Кашницкий А.В., Уваров И.А., Балашов И.В., Романова И.М., Марченков В.В., Константинова А.М., Крамарева Л.С., Мальковский С.И., Королев С.П. Основные результаты 2019 г. комплексного мониторинга вулканов Камчатки и Курил с помощью информационной системы VolSatView // Материалы 17-ой Всероссийской открытой конференции "Современные проблемы дистанционного зондирования Земли из космоса". М.: ИКИ РАН. 2019. https://doi.org/10.21046/17DZZconf-2019a.
Гирина О.А., Лупян Е.А., Уваров И.А., Крамарева Л.С. Извержение вулкана Райкоке 21 июня 2019 года // Современные проблемы дистанционного зондирования Земли из космоса. 2019. Т. 16. № 3. С. 303-307. https://doi.org/10.21046/2070-7401-2019-16-3-303-307.
   Annotation
Raikoke stratovolcano is located in the Central Kuril Islands, with a height of 551 m (or 2500 m from the bottom of the sea), it has a crater on its peak with a diameter of 700 m and a depth of 200 m, the composition of its rocks is andesites. The island-volcano Raikoke together with the underwater volcano 3.18 is a single volcanic massif of 19×8 km in size, the distance between their peaks is about 7 km. The relative height of the underwater volcano from the bottom of the sea is about 900 m, its top is at a depth of about 250 m, the composition of the rocks of the underwater volcano is andesibasalts and andesites. There were only two known strong eruptions of Raikoke: in 1778 and on 15 February 1924. The current explosive eruption of Raikoke volcano began at 18:05 GMT on 21 June 2019. The first message about the eruption was transmitted by Tokyo VAAC; the information about the development of the eruption based on various satellites was obtained by us using the information system “Remote monitoring of the activity of volcanoes of Kamchatka and the Kuriles (VolSatView)”. According to the Himawari-8 satellite data (http://volcanoes.smislab.ru/animation/1561927182.webm), the main phase of the eruption began with a series of large explosions that raised ash to 10–13 km above sea level, and lasted about 15 hours, forming a powerful eruptive cloud moving over 2500 km North-East from the volcano. On 30 June, the aerosol clouds from Raikoke were observed at distances from the volcano: 3100 km (Novosibirsk Islands), 3500 km (Lake Baikal), about 5500–6000 km (Northwest Canada). A detailed analysis of satellite information suggested that on 24–25 June a lava flow began to pour out on the western slope of Raikoke. It is also possible that during the eruption of Raikoke, the underwater volcano 3.18 also erupted.
Гирина О.А., Мальковский С.И., Сорокин А.А., Лупян Е.А. Ретроспективный анализ извержения 1964 г. вулкана Шивелуч (Камчатка) с помощью информационной системы VolSatView // Информационные технологии в дистанционном зондировании Земли - RORSE 2018. Электронный сборник статей 16-й конференции (12-16 ноября 2018 г., Москва, Россия) (2019 г.). М.: ИКИ РАН. 2019. С. 34-41. https://doi.org/10.21046/rorse2018.34.
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Owing to modern development of information technologies and computer simulation systems, and datasets derived from open historical meteorological data archives, it appeared possible to perform retrospective analysis of large explosive volcanic eruptions. This work analyzes the results of simulation of the events associated with the eruptive cloud propagation during the catastrophic eruption of the November, 1964 Sheveluch volcano. The obtained additional eruptive cloud parameters enabled us to reproduce the dynamics of the explosive eruption and to validate its magmatic genesis.