IUGG 2015. session VS34 Effects of Water on Subaerial Volcanic Eruptions and Ash Dispersal
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Dear Colleagues,
We would like to draw your attention to the following IAVCEI session at the 2015 IUGG General Assembly in Prague (22 June – 2 July, 2015):
VS34 Effects of Water on Subaerial Volcanic Eruptions and Ash Dispersal
This symposium provides a venue for presentations of results from lab experiments, numerical modeling, and field and remote-sensing observations that examine the role of external volatiles on:• Fragmentation - grain size and textural signatures;
• Plume dynamics in phreatomagmatic eruptions, such as transitions between explosive and effusive, or buoyant and collapsing phases, and resulting changes in the atmospheric injection of ash;
• Microphysical properties of clouds, including ice formation and lightning generation;
• Ash aggregation and implications for near-source and long-distance dispersal;
• Effects of phreatomagmatic volcanism on climate and the environment;
• Field evidence for the physical range of water sources and amounts involved at different stages of eruption, transport and dispersal;
• Implications for volcanic hazards assessment and planning.Convenors
Michael Ort (Northern Arizona University, USA)
Fabrizio Alfano (Arizona State University, USA)
Alexa Van Eaton (USGS Cascades Volcano Observatory, USA)
We look forward to seeing you in Prague!
All the best,
Fabrizio (for convenors)More information can be found at http://www.iugg2015prague.com/iavcei-symposia.htm. There will be many IAVCEI sessions, making for an exciting meeting.
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