********************************************************************************** From: Jacques Zlotnicki <Jacques.zlotnicki@xxxxxxxxxxxxxxxxxxxxxxx> ********************************************************************************** INFORMATION ON EM SESSION AT 2008-IAVCEI MEETING Dear Colleagues, The International Association of Volcanology and Chemistry of the Earth's Interior will held its General 2008 assembly in Reykjavik-Iceland, on August 17-22. http://www.iavcei.org/IAVCEI.htm We would like to bring to your attention on the following session at the IAVCEI meeting. During this session, we hope to 1) bring together new observations and results in the EM field related to various active volcanoes, 2) emphasize the usefulness of EM methods for imaging and monitoring volcanoes, 3) share common experiences and 4) discuss of these types of measurements and the constraints they place on physical processes within volcanoes.. 2-f Advances in Electromagnetic Investigations of Active Volcanoes and Hydrothermal Fields (Posters only) New electromagnetic (EM) observations (i.e. magnetic and/or electric) have recently been obtained over active volcanoes, hydrothermal and geothermal systems. EM signals have also been recorded prior to, and during, actual eruptions and hydrothermal activity. Analyses of these data have led to both improved understanding of unrest during volcanic, hydrothermal and geothermal activity, and identification of several of the physical processes involved. Furthermore, combining EM studies with other multi-parameter geophysical monitoring has allowed more unambiguous interpretation of these processes. This session will focus on: - The geophysical, and geochemical behaviour of volcanoes during eruptions and relationships to observed EM phenomena such as self-potential, magnetic fields, electric fields, lightning, conductivity structure, etc. - The characteristics of EM signals recorded during different volcanic, hydrothermal and geothermal activity particularly recent EM studies in Iceland, - The complete description of EM signals before eruptions including physical mechanisms that result in EM signal generation, - Correspondence between EM signals and other geophysical observations (seismic, geodetic, geochemical, etc), - Combined satellite and ground based EM observations, - Modeling of EM tomography and EM processes, - Review papers on EM using multi-parameters data to constrain source processes. Conveners: Jacques Zlotnicki, National Scientific Research Centre, UMR6524-OPGC, France, Jacques.zlotnicki@xxxxxxxxxxxxxxxxxxxxxxx <mailto:Jacques.zlotnicki@xxxxxxxxxxxxxxxxxxxxxxx> Malcolm Johnston,USGS, Menlo Park, USA, mal@xxxxxxxx <mailto:mal@xxxxxxxx> Ragna Karlsdottir, Iceland GeoSurvey, Reykjavik, Iceland, Ragna.Karlsdottir@xxxxxxx <mailto:Ragna.Karlsdottir@xxxxxxx> Commission: EMSEV Important dates First circular : December 2006 <http://www.iavcei2008.hi.is/page//solofile/1010894> (pdf file) Financial support application: 1 March 2008 Abstract submission: 1 April 2008 Early registration: 1 April 2008 Meeting: 17 - 22 August 2008 ============================================================== To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxxx To contribute to the volcano list, send your message to: volcano@xxxxxxxx Please do not send attachments. ==============================================================
