*************************** From: Simon Carn <scarn@xxxxxxxx> *************************** Dear colleagues, We would like to draw your attention to session V13 at the 2007 AGU Joint Assembly to be held in Acapulco, Mexico from 22-25 May, 2007 (http://www.agu.org/meetings/ja07/). Please find the session description below. The abstract deadline is 1 March 2007 at 2359 UTC. Best regards, The Conveners V13: Monitoring Volcanic Emissions in the Americas Monitoring of volcanic gas and ash emissions is a critical component of volcano monitoring and aviation hazard mitigation programs. Measurements during periods of inter-eruptive quiescence establish valuable baselines for assessments of future perturbations in volcanic systems. Remote monitoring of volcanic gases during episodes of unrest with the potential to escalate into an eruption is particularly important, as it may provide the only insight into activity at unapproachable or sparsely instrumented volcanoes. Following an eruption, space-based mapping of drifting sulfur dioxide and ash clouds is critical to allow timely rerouting of aircraft in the affected area, and to evaluate potential ashfall hazards. Numerous active volcanoes are located along the eastern half of the Pacific Rim from Alaska to southern Chile, threatening some of the world’s busiest commercial air routes and several major cities. Several of the largest volcanic eruptions of recent years, at Reventador (Ecuador), Sierra Negra (Galapagos Islands), Soufriere Hills (Montserrat) and Tungurahua (Ecuador), impacted this region. As new satellite and ground-based techniques for monitoring volcanic emissions emerge, we propose a timely session to discuss the status, application, challenges and future prospects of these techniques, with a particular emphasis on the Americas. Our goal is to congregate volcanologists, along with atmospheric scientists and modelers with an interest in volcanic clouds, from North, Central and South America, in order to strengthen existing collaborations and initiate cooperation between often disparate communities. Topics for discussion could include new operational satellite data products for volcano monitoring, ground-based monitoring of volcanic emissions, synergy of ground-based and space-based observations, incorporation of satellite data into volcano observatory operations, data interpretation, validation of satellite data, eruption case studies and modeling. Relevant contributions from outside the Americas are also welcome. Conveners: Simon Carn University of Maryland Baltimore County, USA scarn@xxxxxxxx Arlin Krueger University of Maryland Baltimore County, USA akrueger@xxxxxxxx Santiago Arellano Instituto Geofisico - Escuela Politecnica Nacional, Ecuador sarellano@xxxxxxxxxxxx ============================================================== 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. ==============================================================