V021
Water, Water Everywhere, But How Much at Volcanoes?
Session ID#: 157226
Session Description:
Volcanic eruptions are mainly steam explosions, so the role of water is ubiquitous (and incontrovertible). But how much water is involved and how is it distributed? We seek contributions on the overall water budget at volcanoes, including water in melt inclusions, free water associated with magma, groundwater, volcanic lakes, seawater and any other sources. Further, how much water is contained in volcanic plumes, and how much is incorporated into plumes from the surrounding atmosphere? These values affect factors such as ash aggregation and the production of volcanic lightning. At glaciated volcanoes, are all lahars attributable to melting ice? Are cold mudballs observed during eruptions of Krakatoa (1883) and Mt St Helens (1980) melting hydrometeors?Any contributions on these effects or related estimates of water distribution are welcome. Realistic estimates of errors are also needed.
Index Terms:
3304 Atmospheric electricity [ATMOSPHERIC PROCESSES]
8409 Atmospheric effects [VOLCANOLOGY]
8419 Volcano monitoring [VOLCANOLOGY]
8430 Volcanic gases [VOLCANOLOGY]
Primary Convener: Stephen R McNutt, University of South Florida Tampa, School of Geosciences, Tampa, FL, United States
Conveners: Earle R Williams, Massachusetts Institute of Technology, Cambridge, MA, United States and Aurelie Germa, University of South Florida, School of Geosciences, Tampa, FL, United States
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