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AGU 2010 Session: V17 Supervolcanoes: Modeling of Eruption Scenarios and their Regional and Global Impacts
From: Flavio Dobran dobran@xxxxxxxxxxx
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AGU Fall 2010, San Francisco, V17 Session Announcement
Abstract deadline: 2 September
Supervolcanoes: Modeling of Eruption Scenarios and their Regional and
Global Impacts
Convenors:
Prof. Michael R. Rampino
Prof. Flavio Dobran
Supervolcanoes can eject billions of tons of volcanic debris in short
periods of time and affect the land and atmosphere on regional and global
scales. The dormancy periods of these volcanoes are hundreds of thousands
of years and in historic time no such eruptions are known to have been
produced. The field data attest, however, to their periodic occurrence
and to their potential effects, but these data are incomplete and provide
only a rough guidance to the modeling of these catastrophic volcanic
eruptions. Supervolcanoes produce plinian columns which reach the
stratosphere and the pyroclastic flows that can reach hundreds of
kilometers from the vent, but the modeling of these eruptions is at its
infancy, both in terms of utilizing adequate physical models and
numerically solving the resulting mathematical equations on high speed
computers.
The session is organized for the purpose of bringing together a
multidisciplinary group of researchers interested in producing data and
physico-chemical mathematical models of eruption scenarios of large-scale
volcanic eruptions. Volcanological and geological data are sought to
establish the provenance and characterization of magma and distribution
of deposits. Geophysical data are sought to ascertain the substructural
characteristics of potential supervolcanic areas. And the modeling
contributions are sought to identify the necessary physico-chemical
models which implement polydispersed particle classes and microphysical
processes associated with phase changes and particulate interactions
associated with nonequillibrium processes in supereruptions. The session
will provide a forum for critical discussion of modeling supervolcanoes
and their effects, with the aim of producing a bound volume of original
contributions.
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