HR: 15:10h
AN: U23C-07    [Abstracts]
TI: Application of Integrated Airborne Geophysical Survey System Using Helicopter: Results of Aso and Bandai Volcanoes
AU: * Ito, H
EM: ito_hisa@criepi.denken.or.jp
AF: Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, 270-1194 Japan
AU: Kaieda, H
U23C-07 AF: Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, 270-1194 Japan
AU: Kusunoki, K
U23C-07 AF: Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, 270-1194 Japan
AU: Mogi, T
U23C-07 AF: Hokkaido University, Kita10 Nishi8, Sapporo, 060-0810 Japan
AU: Tanaka, Y
U23C-07 AF: Kyoto University, Choyo-son, Aso, 869-1404 Japan
AU: Fujimitsu, Y
U23C-07 AF: Kyushu University, 6-10-1 Hakozaki, Fukuoka, 812-8581 Japan
AU: Yuuki, Y
U23C-07 AF: Oyo Corporation, 43 Miyukigaoka, Tsukuba, 305-0841 Japan
AB: In order to mitigate disastrous natural hazards, it is necessary to survey near-surface structure and phenomena as quickly as possible. For this purpose we have developed an integrated airborne geophysical survey system, which incorporates electromagnetic, magnetic, gamma-ray spectrometry and infrared image data. In our system, we adopted a grounded electrical source and an airborne magnetic field receiver to increase the depth of investigation and could gain resistivity structure as deep as 800 m with the coverage of 20 square km in Aso volcano, Kyushu Island. As for magnetic survey, we used two magnetic sensors with vertical separation of 10 m and obtained magnetic and magnetic gradient maps. We also gained gamma-ray and infrared image maps for the same survey area in Aso in 2004. We will repeat our survey in Aso to test the reproducibility of our data and also apply it to Bandai volcano in 2005.
DE: 1744 Tectonophysics
DE: 1749 Volcanology, geochemistry, and petrology
SC: Union [U]
MN: Fall Meeting 2005