VOLCANO: EGU 2012: MPV4.4, Recent explosive eruptions: Conduit processes, ash dispersal and effects on aviation - reminder

[Jean-François Smekens <jsmekens@xxxxxxx>]

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EGU 2012: MPV4.4, Recent explosive eruptions: Conduit processes, ash dispersal and effects on aviation - reminder
From: "Magnús Tumi Guðmundsson" <mtg@xxxxx>
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Dear Colleagues,

We would like to encourage you to submit a contribution to our session 
in the next EGU General Assembly to be held in Vienna, April 22 – 27, 
2012 (for details: http://meetings.copernicus.org/egu2012):

http://meetingorganizer.copernicus.org/EGU2012/session/9145

GMPV4.4, Recent explosive eruptions: Conduit processes, ash dispersal and effects on aviation

The explosive eruptions of Chaitén in 2008, Eyjafjallajökull in 2010 and
 Grímsvötn and Puyehue-Cordón Caulle in 2011 have demonstrated how 
events of only moderate size and intensity can result in significant 
disruption and considerable economic impacts both locally and 
regionally. In particular the Eyjafjallajökull eruption in spring 2010 
caused unprecedented disruption to aviation with extensive closures of 
European air space, while ash from Chile’s Puyehue-Cordón Caulle 
circumvented the globe disrupting air traffic in Australia and New 
Zealand. These events have highlighted the need for better understanding
 of conduit processes in explosive eruptions, the controls of magma 
fragmentation, particle population characteristics, plume dynamics, 
interaction between plume and atmosphere, and the near- and far-field 
dispersion and deposition of tephra. The potential of ground-based and 
remote sensing techniques for detecting and quantifying the atmospheric 
ash-loading by v
 olcanic plumes was demonstrated by observations during these eruptions,
 although more precise calibration and refinement of the techniques is 
required.

In this session we seek to address all observational and modelling 
aspects of the explosive eruptions of Chaitén, Eyjafjallajökull, 
Grímsvötn and Puyehue-Cordón Caulle. This includes course of eruption 
events, magma chemistry and physics, magma fragmentation along with 
mechanisms that promote ash generation, tephra transport and dispersion,
 tephra sedimentation and physical properties, atmospheric interaction 
and dynamics of volcanic plumes in the near- to far-field, and methods 
of ash detection and quantification. A particular aim for this session 
is to bring together the traditionally separate communities of solid 
earth scientists (geophysicists, petrologists, physical volcanologists, 
etc.) and atmospheric scientists (meteorologists, atmospheric chemists 
and physicists, remote sensing scientists etc.).

Please note the abstract submission deadline of January 17th 2012.
Please pass this information on to colleagues and students working in this field.

You may submit the text of your contribution as plain text, LaTeX, or MS
 Word content. Please pay attention to the First Author Rule as 
described at: http://meetings.copernicus.org/egu2012/abstract_management/how_to_submit_an_abstract.html

With best wishes,

Magnus T. Gudmundsson, Kristin Vogfjord, Fred Prata, Claire Witham, Thor Thordarson


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Magnus T. Gudmundsson, PhD, Professor of Geophysics
Head, Faculty of Earth Sciences
Institute of Earth Sciences, University of Iceland
Sturlugata 7, 101 Reykjavik
http://www.raunvis.hi.is/~mtg, tel: +354-525-5867

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