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From: Alessandro Vona <alessandro.vona@xxxxxxxxxxx>
Subject: COV 10 - Call for abstract - S1.38 The contribution of experimental and numerical investigations of eruptive processes for improving hazard assessment at volcanoes
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Dear colleagues,
Volcanic eruptions are complex, dynamical phenomena resulting from a variety of physico-chemical processes. These include, e.g., magma mixing, mingling and crustal assimilation, nucleation, growth and segregation of bubbles and crystals, decompression, flow, shearing, volatiles escape and fragmentation, occurring over a relatively wide range of temperatures, pressures, stresses and time scales. Most of these processes occur at depth and are not accessible for direct observation, but are crucial factors affecting if a volcanic eruption will be more hazardous than others. On one side, laboratory experiments allow expanding the range of observations, by taking advantage of a controlled and simplified environment to 1) isolate and investigate the fundamental physical processes behind the observed eruptive dynamics; 2) provide systematic, repeatable and quantitative results in terms of key physico-chemical parameters. On the other side, experimental dataset represents the building block of numerical simulations, that have the power to illustrate the complex correlations between flow parameters and the physical processes that affect volcanic eruption dynamics. The recent development of new experimental techniques, the use of both natural and analogue materials, and the shift in numerical models from 1D steady-state, homogeneous and equilibrium to 2D, transient, multiphase and disequilibrium ow assumptions, improved our knowledge on a wide range of eruptive mechanisms. These advancements allowed us to better describe the dynamics of magma ascent along volcanic conduits, the mechanisms of column collapse and to constrain the dynamics of PDCs and/or fall out, which are crucial to de ne eruptive scenarios and their impact on society and the environment.
In this session, we welcome innovative and multidisciplinary contributions on volcanic problems relying on laboratory experiments and their integration in numerical models of volcanic eruptions. These include, but are not limited to (i) magma chambers processes, (ii) dynamics of magma ascent along volcanic conduits, as well as (iii) eruptive mechanisms and pyroclast deposition.
(This session is under the aegis of the IAVCEI Commission on Explosive Volcanism)
We look forward to seeing you in Napoli,
Alessandro Vona, Elisabetta Del Bello, Antonio Capponi, Mattia De’ Michieli Vitturi, Diego Perugini and Kelly Russell
Please consider submitting your abstract to the following session for the COV 10 conference in Naples from 2-7 September (www.citiesonvolcanoes10.com). The abstract submission deadline is May 10.
Session: S1.38: The contribution of experimental and numerical investigations of eruptive processes for improving hazard assessment at volcanoes
Session Description:
Session: S1.38: The contribution of experimental and numerical investigations of eruptive processes for improving hazard assessment at volcanoes
Session Description:
Volcanic eruptions are complex, dynamical phenomena resulting from a variety of physico-chemical processes. These include, e.g., magma mixing, mingling and crustal assimilation, nucleation, growth and segregation of bubbles and crystals, decompression, flow, shearing, volatiles escape and fragmentation, occurring over a relatively wide range of temperatures, pressures, stresses and time scales. Most of these processes occur at depth and are not accessible for direct observation, but are crucial factors affecting if a volcanic eruption will be more hazardous than others. On one side, laboratory experiments allow expanding the range of observations, by taking advantage of a controlled and simplified environment to 1) isolate and investigate the fundamental physical processes behind the observed eruptive dynamics; 2) provide systematic, repeatable and quantitative results in terms of key physico-chemical parameters. On the other side, experimental dataset represents the building block of numerical simulations, that have the power to illustrate the complex correlations between flow parameters and the physical processes that affect volcanic eruption dynamics. The recent development of new experimental techniques, the use of both natural and analogue materials, and the shift in numerical models from 1D steady-state, homogeneous and equilibrium to 2D, transient, multiphase and disequilibrium ow assumptions, improved our knowledge on a wide range of eruptive mechanisms. These advancements allowed us to better describe the dynamics of magma ascent along volcanic conduits, the mechanisms of column collapse and to constrain the dynamics of PDCs and/or fall out, which are crucial to de ne eruptive scenarios and their impact on society and the environment.
In this session, we welcome innovative and multidisciplinary contributions on volcanic problems relying on laboratory experiments and their integration in numerical models of volcanic eruptions. These include, but are not limited to (i) magma chambers processes, (ii) dynamics of magma ascent along volcanic conduits, as well as (iii) eruptive mechanisms and pyroclast deposition.
(This session is under the aegis of the IAVCEI Commission on Explosive Volcanism)
We look forward to seeing you in Napoli,
The Conveners
Alessandro Vona, Elisabetta Del Bello, Antonio Capponi, Mattia De’ Michieli Vitturi, Diego Perugini and Kelly Russell
Volcano Listserv is a collaborative venture among Arizona State University (ASU), Portland State University (PSU), the Global Volcanism Program (GVP) of the Smithsonian Institution's National Museum of Natural History, and the International Association for Volcanology and Chemistry of the Earth's Interior (IAVCEI).
ASU - http://www.asu.edu/ PSU - http://pdx.edu/ GVP - http://www.volcano.si.edu/ IAVCEI - http://www.iavcei.org/
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