Volcanic Plumes: Dispersion Dynamics and Atmospheric Phenomena II

Friday, 19 December 2014: 1:40 PM-3:40 PM
Chairs:  Shannon E Kobs-Nawotniak, Idaho State University, Pocatello, ID, United States and Kirsten N Chojnicki, Scripps Institute of Oceanography, La Jolla, CA, United States
Primary Conveners:  Shannon E Kobs-Nawotniak, Idaho State University, Pocatello, ID, United States
Co-conveners:  Kimberly D Genareau, University of Alabama, Tuscaloosa, AL, United States, Kirsten N Chojnicki, Scripps Institute of Oceanography, La Jolla, CA, United States and Sonja A Behnke, University of South Florida Tampa, Tampa, FL, United States
OSPA Liaisons:  Shannon E Kobs-Nawotniak, Idaho State University, Pocatello, ID, United States

Abstracts Submitted to this Session:

1:40 PM
When Do Complex Eruption Dynamics Matter? The Roles of Column Instability and Magma-water Interaction on Dispersal of Volcanic Ash
Alexa R Van Eaton, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States; USGS Cascades Volcano Observatory, Vancouver, WA, United States, Michael Herzog, University of Cambridge, Cambridge, United Kingdom, Amanda B Clarke, Arizona State University, Tempe, AZ, United States and Richard J Brown, University of Durham, Department of Earth Sciences, Durham, United Kingdom
1:55 PM
3D numerical simulations of volcanic plume and tephra dispersal: Reconstruction of the 2014 Kelud eruption
Yujiro Suzuki1, Masato Iguchi2, Fukashi Maeno3, Setsuya Nakada3, Akihiro Hashimoto4, Toshiki Shimbori4 and Kensuke Ishii4, (1)ERI, Univ. Tokyo, Tokyo, Japan, (2)Sakurajima Volcanic Observatory, Kagoshima, Japan, (3)University of Tokyo, Bunkyo-ku, Japan, (4)Meteorological Research Institute, Ibaraki, Japan
2:10 PM
Dynamics of Wind-Affected Volcanic Plumes: The Example of the 2011 Cordon Caulle Eruption, Chile
Costanza Bonadonna1, Marco Pistolesi2, Raffaello Cioni3, Wim Degruyter4, Manuela Elissondo5 and Valerie Baumann5, (1)University of Geneva, Section of Earth and Environmental Sciences, Geneva, Switzerland, (2)University of Pisa, Pisa, Italy, (3)Università degli Studi di Cagliari, Firenze, Italy, (4)Georgia Institute of Technology, Atlanta, GA, United States, (5)SEGEMAR, Buenos Aires, Argentina
2:25 PM
Multiparametric Study of Wind and Atmosphere Effect on Explosive Eruptive Style
Sara Barsotti, Icelandic Meteorological Office, Monitoring and forecasting, Reykjavik, Iceland, Mattia De' Michieli Vitturi, INGV National Institute of Geophysics and Volcanology, Sezione di Pisa, Rome, Italy, Samantha L Engwell, University of Bristol, Bristol, United Kingdom and Augusto Neri, National Institute of Geophysics and Volcanology, Rome, Italy
2:40 PM
Impact of wind on the dynamics of explosive volcanic plumes inferred from analog experiments
Guillaume Carazzo1, Frederic Girault2, Thomas Jacques Aubry3, Helene Bouquerel1 and Edouard C Kaminski1, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Ecole Normale Superieure, Paris, France, (3)University of British Columbia, Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada
2:55 PM
Experimental study of jet gas-particle interaction generated during explosive volcanic eruptions
Ezequiel F. Medici and Gregory P Waite, Michigan Technological University, Houghton, MI, United States
3:10 PM
Turning Off Entrainment: The Role of Particle Size Distributions and Vent GeometryIn The Collapse of Volcanic Jets
Mark Jellinek1, David Jessop1 and Olivier Roche2, (1)University of British Columbia, Vancouver, BC, Canada, (2)IRD-Universite Blaise Pascal, Clermont-Ferrand, France
3:25 PM
Dynamics of Individual Eruptive Pulses and their Contribution to the Total Mass Flux – Case Study of the 2nd Explosive Phase of the 2010 Eyjafjallajökull Eruption (Iceland)
Tobias Dürig1, Magnus Tumi Gudmundsson2, Sven Karmann3, Bernd Zimanowski3, Pierfrancesco Dellino4, Martin Rietze5 and Ralf Büttner3, (1)University of Iceland, Reykjavik, Iceland, (2)Univ Iceland, Reykjavik, Iceland, (3)University of Würzburg, Würzburg, Germany, (4)University of Bari Aldo Moro, Bari, Italy, (5)self-employed, Eichenau, Germany