We would like to remind you to contribute to the "Volcanic Lakes" session (S1.31) organized during the upcoming Cities on Volcanoes 10, Napoli, Italy (2-7 Sept 2018).
S1.31 | The impact of volcanic lakes on society: from lake legends to lake degassing
CONVENERS:
Dmitri Rouwet (dmitri.rouwet@xxxxxxx) | Jacopo Cabassi | Bruce Christenson | Corentin Caudron | Greg Tanyileke | Raul Mora-Amador
Nearly 500 volcanoes worldwide host a lake in their edifice, with about 10% of them topping active volcanic-hydrothermal systems in craters at volcano summits. Volcanic lakes are the intersection of the groundwater table and the surface; a window to look into the underlying volcanic system. Due to the large amount of water directly available, volcanic lakes, intrinsically “the wettest volcanoes”, pose a direct risk for the surrounding areas. Active crater lakes are prototype settings for phreatic eruptions, that are able to violently expel large amounts of water, potentially triggering lahars. Hyperacid lakes degas HCl and SO2, as volcanic plumes do, acidifying the local rain or hydrologic systems, hence affecting agricultural activity. “Nyos-type” lakes store CO2 and CH4 in their bottom waters that can be released upon an internal or external trigger, asphyxiating people and cattle at worst. These dynamics lead to the fact that volcanic lakes (1) need thorough monitoring setups as they pose a direct risk to people, (2) are sources of livelihood, and (3) provide insights into the depths of volcanichydrothermal systems. This session seeks presentations that comprise a wide range of research areas: from geophysics to geochemistry, from limnology to biology, from numerical to analog modeling, from hazard assessment to volcano monitoring. Moreover, legends, myths and historical reports from past centuries will help to trace back how certain lakes behaved in the past (and hence, will behave in the future), and how these “mystical” lakes are lived and believed by various ethnic groups.
Volcano Listserv is a collaborative venture among Arizona State University (ASU), Portland State University (PSU), the Global Volcanism Program (GVP) of the Smithsonian Institution's National Museum of Natural History, and the International Association for Volcanology and Chemistry of the Earth's Interior (IAVCEI).
ASU - http://www.asu.edu/ PSU - http://pdx.edu/ GVP - http://www.volcano.si.edu/ IAVCEI - http://www.iavcei.org/
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