***********************************************************************************
EGU 2011. Sessions GMPV12 and GMPV13 Measuring and modelling of volcano eruption dynamics
From: Tim Druitt <T.Druitt@xxxxxxxxxxxxxxxxxxxxxxx>
***********************************************************************************
Dear colleagues
You are invited to submit a contribution to two related EGU General Assembly (Vienna, April 03 – 08, 2011) symposia
GMPV12: Measuring and modelling of volcano eruption dynamics: I. shallow magma storage and ascent
Conveners: Tim Druitt (Clermont-Ferrand), Olgeir Sigmarsson (Univ Iceland), Don Dingwell (Munich)
and
GMPV13: Measuring and modelling of volcano eruption dynamics: II: volcanic plumes and pyroclastic density currents
Conveners: Augusto Neri (Pisa), Costanza Bonadonna (Geneva), Matthew Watson (Bristol)
The dynamics of shallow magma storage/ascent, volcanic plumes and pyroclastic density currents remains largely qualitative and only partially understood. Erupting volcanoes are highly complex and non-linear systems that represent a real challenge for quantitative description. Major progress has been recently made due to the availability of remote sensing techniques able to measure many physical and chemical eruptive variables, with important implications for conduit and plume dynamics. Advanced techniques of petrological, chemical, isotope and textural analysis can provide detailed information on the initial state and evolution of the erupted products, and techniques of mathematical inversion of field data are becoming increasingly sophisticated. Physico-mathematical models and laboratory experiments allow us to simulate transient flow and fragmentation in conduits, volcanic plumes and pyroclastic density currents, even in three-dimensions. Validation of these models as well as the development of appropriate scaling laws are fundamental steps to increase our level of understanding.
The first session (GMPV12) aims to bring together scientists using a range of field, petrological, geochemical and modelling techniques to characterise volcanic plumbing systems and conduits immediately prior to, and during, eruptions: shallow storage conditions, eruption triggering, magma/gas budgets, magma conduit flow, vesiculation, fragmentation, gas loss and crystallization. Multiparameter studies involving combinations of these approaches are particularly welcome.
The second session (GMPV13) will bring together a multidisciplinary group of researchers investigating, by different methods and approaches, the dynamics of volcanic plumes and pyroclastic density currents of any type and origin including column dynamics, tephra dispersal and fallout, gas plumes, collapsing columns, volcanic jets, volcanic blasts and short-live explosions, as well as pyroclast transport, sedimentation, elutriation and deposition in the surface environment. Studies presenting comparisons between field, observational, and modelling reconstructions of recent and well-known eruptive events are particularly welcome.
The abstract deadline is January 10th, 2011
See http://meetings.copernicus.org/egu2011 for conference details and submission procedures.
==============================================================
To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxx.
To contribute to the volcano list, send your message to: volcano@xxxxxxx. Please do not send attachments.
==============================================================
