V44B:
Volcano-Atmosphere Interactions I


Session ID#: 9178

Session Description:
Explosive eruptions are linked to a range of atmospheric phenomena including volcanic lightning, phase changes of water, and modification of airborne aerosols by ash aggregation and scavenging of chemical compounds. All of these processes are relevant to the detection, forecasting and mitigation of volcanic hazards.


This session focuses on processes related to the lifetime of volcanic ash from source to sink. We particularly encourage studies that bridge volcanology and atmospheric physics from the perspectives of field observations, laboratory experiments, remote sensing, and numerical modeling.


Topics of particular interest include:
• Factors influencing the generation of fine ash (e.g. magma-water interaction)
• Atmospheric injection of volcanic plumes
• Constraints on electrical charge generation and volcanic lightning
• Processes that modify the fallout of volcanic ash, including particle aggregation

Primary Convener:  Kimberly D Genareau, University of Alabama, Department of Geological Sciences, Tuscaloosa, AL, United States
Conveners:  Alexa R Van Eaton, USGS Cascades Volcano Observatory, Vancouver, WA, United States, Sonja A Behnke, Los Alamos National Laboratory, Los Alamos, NM, United States and Larry G Mastin, US Geological Survey Cascades Volcano Observatory, Vancouver, WA, United States
Chairs:  Kimberly D Genareau, University of Alabama, Department of Geological Sciences, Tuscaloosa, AL, United States, Sonja A Behnke, Los Alamos National Laboratory, Los Alamos, NM, United States, Alexa R Van Eaton, USGS Cascades Volcano Observatory, Vancouver, WA, United States and Larry G Mastin, USGS, Cascades Volcano Observatory, Vancouver, WA, United States
OSPA Liaison:  Kimberly D Genareau, University of Alabama, Department of Geological Sciences, Tuscaloosa, AL, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • AE - Atmospheric and Space Electricity
  • NH - Natural Hazards
Co-Sponsor(s):
  • EGU-GMPV: European Geosciences Union – Geochemistry, Mineralogy, Petrology, and Volcanology - European Geosciences Union – Geochemistry, Mineralogy, Petrology, and Volcanology
Index Terms:

8409 Atmospheric effects [VOLCANOLOGY]
8428 Explosive volcanism [VOLCANOLOGY]
8430 Volcanic gases [VOLCANOLOGY]
8488 Volcanic hazards and risks [VOLCANOLOGY]

Abstracts Submitted to this Session:

Volcanic Lightning: in nature and in the lab. (Invited) (61198)
Corrado Cimarelli, Ludwig Maximilian University of Munich, Earth & Environmental Sciences, Munich, Germany and VOlcanic Lightning Team (VOLT)
When do Volcanic Eruptions make Lightning? Observations from Sakurajima, Japan (82647)
Sonja A Behnke, Los Alamos National Laboratory, Los Alamos, NM, United States, Stephen R McNutt, University of South Florida Tampa, School of Geosciences, Tampa, FL, United States, Ronald J Thomas, New Mexico Inst Mining & Tech, Socorro, United States, Cassandra M. Smith, University of South Florida Tampa, Tampa, FL, United States, Harald E Edens, New Mexico Tech, Langmuir Laboratory, Socorro, NM, United States, Alexa R Van Eaton, USGS Cascades Volcano Observatory, Vancouver, WA, United States, Corrado Cimarelli, Ludwig Maximilians University of Munich, Department of Earth and Environmental Sciences, Munich, Germany, Valeria Cigala, Ludwig Maximilian University of Munich, Department of Earth and Environmental Sciences, Munich, Germany, Christopher W Michel, CM Arborcare, Los Alamos, NM, United States, Daisuke Miki, Kyoto University, Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto, Japan and Masato Iguchi, Kagoshima City Hall, Kagoshima, Japan
The Chthonic Charging of Volcanic Flows: The Generation of Vent Lightning (Invited) (62030)
Joshua Mendez Harper, Portland State University, Electrical and Computer Engineering, Portland, United States and Josef Dufek, University of Oregon, Department of Earth Sciences, Eugene, OR, United States
The Evolving Structure of Young Volcanic Eruption Clouds (Invited) (67498)
Simon A Carn, Michigan Technological University, Department of Geological and Mining Engineering & Sciences, Houghton, MI, United States and Marcus I Bursik, University at Buffalo, Department of Earth Sciences, Buffalo, NY, United States
Scaled Tests and Simulation of Triboelectric Charging and Arc Discharge in an Expanding Dust Plume (84145)
Jason Sears1, Allen Kuhl1, Dave Grote1, Mark Converse1, Chris Kueny1, Dave Larson1, Brian Poole1, Andrea Lee Schmidt1, David V Rose2 and Barry Kirkendall1, (1)Lawrence Livermore National Laboratory, Livermore, CA, United States, (2)Voss Scientific Inc, Albuquerque, NM, United States
The Effects of Pulsating Flow on Eruption Column Dynamics (68112)
Taryn E Black1, Josef Dufek2 and Mary C Benage1, (1)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (2)University of Oregon, Department of Earth Sciences, Eugene, OR, United States
Towards probabilistic forecasts of volcanic ash transport in the atmosphere (68766)
Meelis Juma Zidikheri1, Richard Dare2, Rodney Potts2 and Christopher Lucas2, (1)Bureau of Meteorology, Melbourne, VIC, Australia, (2)Bureau of Meteorology, Melbourne, Australia
Experimental aggregation of volcanic ash: the role of liquid bonding (60739)
Sebastian B Mueller1, Ulrich Kueppers2, Michael Jacob3, Paul M Ayris2 and Donald B Dingwell4, (1)Ludwig Maximilian University of Munich, Munich, Germany, (2)Ludwig Maximilians University of Munich, Munich, Germany, (3)Glatt Industries, Weimar, Germany, (4)Ludwig Maximilians University of Munich, Department of Earth and Environmental Sciences, Munich, Germany

See more of: Volcanology, Geochemistry and Petrology