HR: 16:20h
AN: V34A-01    [Abstracts]
TI: Acoustic Remote Sensing of Volcanic Eruptions in Washington, Ecuador, and Colombia: New Tools for Covering Observational Gaps
AU: * Garces, M
EM: milton@isla.hawaii.edu
AF: Infrasound Laboratory, University of Hawaii, Manoa, 73-4460 Queen Kaahumanu Hwy., #119, Kailua-Kona, HI 96740-2638, United States
AU: Fee, D
EM: dfee@isla.hawaii.edu
AF: Infrasound Laboratory, University of Hawaii, Manoa, 73-4460 Queen Kaahumanu Hwy., #119, Kailua-Kona, HI 96740-2638, United States
AU: Steffke, A
EM: steffke@higp.hawaii.edu
AF: Infrasound Laboratory, University of Hawaii, Manoa, 73-4460 Queen Kaahumanu Hwy., #119, Kailua-Kona, HI 96740-2638, United States
AU: Matoza, R
EM: rmatoza@ucsd.edu
AF: Laboratory for Atmospheric Acoustics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0225, United States
AU: Hedlin, M
EM: hedlin@epicenter.ucsd.edu
AF: Laboratory for Atmospheric Acoustics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0225, United States
AU: Yepes, H
EM: hyepes@igepn.edu.ec
AF: Instituto Geofisico, Escuela Politécnica Nacional, Quito, Ecuador
AU: McCormack, D
EM: cormack@seismo.nrcan.gc.ca
AF: Geological Survey of Canada, 1 Observatory Crescent, Ottawa, Ont K1A 0Y3, Canada
AU: Bass, H
EM: pabass@olemiss.edu
AF: National Center for Physical Acoustics, University of Mississippi, University, Oxford, MS 38677, United States
AU: Hetzer, C
EM: claus@olemiss.edu
AF: National Center for Physical Acoustics, University of Mississippi, University, Oxford, MS 38677, United States
AU: Servranckx, R
EM: Rene.Servranckx@ec.gc.ca
AF: Montréal Volcanic Ash Advisory Centre, Canadian Meteorological Centre, Meteorological Service of Canada, Montreal, Canada
AB: Some volcanoes, particularly near population centers or in developed countries, have well developed ground- based monitoring systems. Yet there remain large portions of Earth's surface, particularly in remote areas or less-developed countries, where local ground-based surveillance systems are sparse, fragile, or non-existent. The Acoustic Surveillance for Hazardous Eruptions (ASHE) project aims to develop and evaluate the capability to use low frequency sound to provide robust, low-latency notifications of volcanic eruptions over large regions. We describe current field deployments of several small, autonomous infrasound arrays in Washington State (since October 2004) and Ecuador (since January 2006). The arrays in Washington have detected diverse eruption signals from Mount St. Helens, and the arrays in Ecuador have captured eruptions from Tungurahua and Sangay Volcanoes, as well as Galeras in Colombia. These stations send continuous real time data to a central facility where automatic analysis techniques for eruption detection are being prototyped. Plans are in place to send automated notification products on a test basis to a participating ICAO-designated Volcanic Ash Advisory Center for comparison and possible integration with their existing warning systems. These notifications would be coupled with more detailed real-time data products (presently provided in designated web pages), and could be used by responsible agencies to assess hazard and disseminate updated information.
DE: 8404 Volcanoclastic deposits
DE: 8414 Eruption mechanisms and flow emplacement
DE: 8419 Volcano monitoring (7280)
DE: 8486 Field relationships (1090, 3690)
DE: 8488 Volcanic hazards and risks
SC: Volcanology, Geochemistry, and Petrology [V]
MN: 2007 Joint Assembly