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  • Etna
  • Istituto Nazionale di Geofisica e Vulcanologia  (1)
  • American Institute of Physics
  • Nature Publishing Group
  • 2010-2014  (2)
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Year
  • 1
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    A GIS-based application to volume estimation and spatial distribution analysis of tephra fallout: the 122 BC Etna eruption case study (2012)
    Istituto Nazionale di Geofisica e Vulcanologia
    Details
    Publication Date: 2017-04-04
    Description: In this work we show the use of a geo-spatial information system (GIS) for the volume estimation of fallout deposits and for the identification of syn- and post-eruptive depositional mechanisms. For the first time, we present thickness distribution maps, isopachs maps and fallout deposit volume for the single stratigraphic units (A-F) of the 122 BC Plinian eruption of Etna, the most powerful eruption of this volcano in historical times. Thickness data collected during the field survey were organised in a geo-referenced database and several interpolation algorithms were used to calculate the volumes of the six fallout layers of eruption (units A-F). Results have been compared with those obtained using the Pyle’s method that bases volume calculation on the exponential thickness-decay law of the deposits. Differences in 20 results of the two methods have been analyzed applying 2 and 3D geo-statistical analysis to thickness data and an “ideal” fallout deposit has been used as a reference. Our approach allowed both the identification of stratigraphic sections which deposits were affected by secondary erosional or accumulation phenomena, and the assessment of whether the secondary processes were caused by local morphologic conditions or variation in eruptive dynamics (e.g. rotation of the dispersal axis direction).
    Description: Published
    Description: R0105
    Description: 3.6. Fisica del vulcanismo
    Description: JCR Journal
    Description: restricted
    Keywords: Geographic Information System (GIS) ; Plinian eruption ; Pyroclastic deposits ; Volume estimation ; Etna ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 05. General::05.06. Methods::05.06.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    Lava flow hazards at Mount Etna: constraints imposed by eruptive history and numerical simulations (2014)
    Nature Publishing Group
    Details
    Publication Date: 2017-04-04
    Description: Improving lava flow hazard assessment is one of the most important and challenging fields of volcanology, and has an immediate and practical impact on society. Here, we present a methodology for the quantitative assessment of lava flow hazards based on a combination of field data, numerical simulations and probability analyses. With the extensive data available on historic eruptions of Mt. Etna, going back over 2000 years, it has been possible to construct two hazard maps, one for flank and the other for summit eruptions, allowing a quantitative analysis of the most likely future courses of lava flows. The effective use of hazard maps of Etna may help in minimizing the damage from volcanic eruptions through correct land use in densely urbanized area with a population of almost one million people. Although this study was conducted on Mt. Etna, the approach used is designed to be applicable to other volcanic areas.
    Description: This work was developed within the framework of TecnoLab, the Laboratory for Technological Advance in Volcano Geophysics organized by INGV-CT, DIEES-UNICT, and DMI-UNICT.
    Description: Published
    Description: 3493
    Description: 1V. Storia e struttura dei sistemi vulcanici
    Description: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Description: 3V. Dinamiche e scenari eruttivi
    Description: 4V. Vulcani e ambiente
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: 3IT. Calcolo scientifico e sistemi informatici
    Description: JCR Journal
    Description: restricted
    Keywords: Lava flow hazard ; Etna ; 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 05. General::05.01. Computational geophysics::05.01.99. General or miscellaneous ; 05. General::05.02. Data dissemination::05.02.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
    Location Call Number Expected Availability
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    PAPER (OA)
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