Second International Workshop on Acoustic Remote Sensing of Volcanoes
Held in Shimabara, Japan in conjuction with the Cities on Volcanoes 5 Conference
November 18, 2007
Sponsored by :
Geological Survey of Canada
National Center for Physical Acoustics, University of Mississippi
Comprehensive Nuclear-Test-Ban Treaty Organization
Infrasound Laboratory, University of Hawaii , Manoa
Laboratory for Atmospheric Acoustics, University of California , San Diego
International Association of Volcanology and Chemistry of the Earth's Interior
Point of Contact:
Dr. Milton Garces
Infrasound Laboratory, University of Hawaii , Manoa
73-4460 Queen Kaahumanu Hwy., #119
Kailua-Kona , HI 96740-2638
Tel: 1.808.327.6206
Fax: 1.808.327.6207
milton at isla.hawaii.edu
Description :
The rapidly growing Global Infrasound Network, which includes regional array networks as well as stations that are part of the International Monitoring System, has revitalized the application of infrasound technology to natural hazard monitoring.
Volcanic eruptions produce a broad spectrum of acoustic signals that can be used by observatories and government agencies to assess volcanic hazard and disseminate updated information. This workshop presents the state of the art of infrasonic remote sensing over regional to telesonic distances, and discusses existing measurement, analysis, and data dissemination procedures that can be incorporated into civil defense and aviation applications as well as into research programs. We introduce the fundamentals of sound propagation, review recording and data analysis techniques, and discuss applications using acoustic observations of different eruption styles. We also consider how to design a robust system and the interpretive tools needed to transform a raw acoustic data stream into useful notification and operational products.
Presentations
Introduction, Acoustics Overview -- Milton Garces, Hank Bass (7.8 MB)
Volcano Acoustic Monitoring in Japan -- Hitoshi Yamasato (4.7 MB)
Volcanic recordings from Australian infrasound network -- David Brown
ASHE Prototype for regional monitoring -- David McCormack (1.7 MB)
Sakurajima eruptions observed by LF microphones and video cameras -- Akihiko Yokoo (3.2 MB)
Volcano-acoustic recordings at Mount St. Helens - Robin Matoza
Volcano-acoustic recordings in Italy - Emanuele Marchetti
Volcano-acoustic recordings in Hawaii - David Fee (5.2 MB)