EGU2024 - Session NH2.4 Advances in experimental volcanology: closing the gap between simulations and the reality of sub-aerial volcanic hazards

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From: fabiodioguardi@xxxxxxxxx


Dear community,

I would like to invite you to contribute to Session NH2.4 "Advances in
experimental volcanology: closing the gap between simulations and the
reality of sub-aerial volcanic hazards" at the next EGU2024 conference in
Vienna (14-19 April 2024). The abstract submission deadline is 13:00 CET,
10 January 2024.

The session deals with experimental volcanology with a focus on sub-aerial
volcanic hazards (eruptive columns, pyroclastic density currents, lahar,
debris avalanches, etc.). The complete description follows.

*Understanding, modeling, and forecasting volcanic hazards such as
pyroclastic density currents, volcanic plumes and clouds, gas emissions,
and dispersions, etc. can be very challenging. These phenomena, which can
be theoretically described by computational fluid dynamics, are in fact
very complex in their nature. Indeed, they are: multiphase (gas, solid, and
liquid phases), multispecies (e.g., different gas species), turbulent, from
incompressible to compressible, polydisperse (the solid phase is often
composed by particles of a wide range of size, shape and density), etc. A
unified model capturing all these volcanic hazards is thus still to be
elaborated. Meanwhile, many recent efforts are put into the investigation
of these processes and how to quantitatively implement them in models that
can be used for hazard quantification and mitigation purposes. These
studies are often experimental, from the laboratory scale to a larger scale
and with different ranges of complexity, because this approach allows
controlling the parameters characterizing the physical processes under
investigation. However, application of experimental results to large-scale
natural processes is only possible if a thorough scaling analysis is
carried out early on.*
*In this session, we welcome experimental studies covering all the
sub-aerial volcanic hazards, from eruptive clouds to gravity flows. In
particular, we encourage contributions that focus on closing the gap
between the laboratory and the natural scale (e.g., via a careful approach
of the scaling issue), and potentially applying the knowledge acquired in
the experiments to simulation tools (e.g., via new constitutive equations).*

Thanks!

Fabio Dioguardi, Sylvain Charbonnier, Morgan Hetherington, Audrey
Michaud-Dubuy, Ilaria Rucco

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End of Volcano Digest - 17 Nov 2023 to 20 Nov 2023 (#2023-112)
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