HR: 1330h
AN: V32B-1021    [PDF]
TI: Global Real-Time Volcano Hazard Monitoring with Satellites: The Anatahan Eruption
AU: * Flynn, L
EM: flynn@higp.hawaii.edu
AF: HIGP/SOEST University of Hawaii at Manoa, 1680 East-West Rd., POST 501D, Honolulu, HI 96822 United States
AU: Wright, R
EM: wright@higp.hawaii.edu
AF: HIGP/SOEST University of Hawaii at Manoa, 1680 East-West Rd., POST 501D, Honolulu, HI 96822 United States
AU: Pilger, E
EM: pilger@higp.hawaii.edu
AF: HIGP/SOEST University of Hawaii at Manoa, 1680 East-West Rd., POST 501D, Honolulu, HI 96822 United States
AU: Garbeil, H
EM: harold@higp.hawaii.edu
AF: HIGP/SOEST University of Hawaii at Manoa, 1680 East-West Rd., POST 501D, Honolulu, HI 96822 United States
AB: On May 10, 2003, the island of Anatahan in the northern Mariana Islands experienced its first historical eruption. Anatahan is a 9 km long and 4 km wide island dominated by two volcanoes having E-W trending elongated and overlapping summit calderas. Following seismic activity in the 1990's, the island was largely evacuated. Thermal satellite data not only confirmed the eruption of the eastern crater of Anatahan but also pinpointed the location of continuing activity over a two-week period following the start of the eruption. These data were forwarded to hazard mitigation officials within hours of acquisition. NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) observes the Earth in the visible to infrared portion of the spectrum at 1 km x 1 km spatial resolution. Two MODIS instruments on Terra and Aqua provide global coverage 2-4 times per day, more towards higher latitudes. The Hawaii Institute of Geophysics and Planetology researchers developed an algorithm (MODVOLC) that mines the global Aqua and Terra data sets in order to pinpoint locations of volcanic activity. Currently, the time lag between data acquisition by MODIS and display on the web site is ~2-4 hours. Weekly hotspot reports identify active volcanoes around the globe. Many volcanoes (Erebus, Heard, Anatahan, Michael) are in remote locations and otherwise would have gone unobserved or underobserved. The MODIS hotspot monitoring system provides reliable, and readily-accessible coverage of the world's volcanoes to support volcanic hazard mitigation efforts.
UR: http://modis.higp.hawaii.edu
DE: 0933 Remote sensing
DE: 8419 Eruption monitoring (7280)
DE: 8494 Instruments and techniques
DE: 8499 General or miscellaneous
DE: 9355 Pacific Ocean
SC: Volcanology, Geochemistry, Petrology [V]
MN: 2003 Fall Meeting