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研究論文 1999年
Evans, L., P. Tarits, A. D. Chave, A. White, G. Heinson, J. H. Filloux, H. Toh, N. Seama, H. Utada, J. R. Booker, and M. J. Unsworth, Asymmetric Electrical Structure in the Mantle Beneath the East Pacific Rise at 17 °S, Science, 286, 5440, 752-756, 1999.
後藤秀作・木下正高・山野誠・松林修, 海底下長期温度測定による海底堆積物の熱拡散率の推定とその応用, 物理探査, 52, 3, 199-213, 1999.
Ichiki, M., M. Mishina, T. Goto, N. Oshiman, N. Sumitomo, and H. Utada, Magnetotelluric investigations for the seismically active area in Northern Miyagi Prefecture, northeastern Japan, Earth Planets Space, 51, 351-361, 1999.
Kagiyama, T., H. Utada, and T. Yamamoto, Magma ascent beneath Unzen Volcano, SW Japan, deduced from the electrical resistivity structure, J. Volcanol. Geotherm. Res., 89, 35-42, 1999.
Kikuchi, M., Y. Yamanaka, K. Abe, and Y. Morita, Source rupture process of the Papua New Guinea warthquake of July 17, 1998 inferred from teleseismic body waves, Earth Planets Space, 51, 1319-1324, 1999.
Kumagai, H., Y. Fukao, S. Watanabe, and Y. Baba, A self-organized model of earthquakes with constant stress drops and the b-value of 1, Geophys. Res. Lett., 26, 2817-2820, 1999.
Nishida, K., and N. Kobayashi, Statistical Features of Earth’s Continuous Free Oscillations, J. Geophys. Res., 104, 28, 741-750, 1999.
西田究・小林直樹, 大気励起常時自由振動, 惑星科学会誌,『遊・星・人』, 8, 2, 89-94, 1999.
Shimizu, H., and H. Utada, Ocean Hemisphere Geomagnetic Network: its instrumental design and perspective for long-term geomagnetic observations in the Pacific, Earth Planets Space, 51, 917-932, 1999.
Yamaguchi, S., Y. Kobayashi, N. Oshiman, K. Tanimoto, H. Murakami, I. Shiozaki, M. Uyeshima, H. Utada, and N. Sumitomo, Preliminary report on regional resistivity variation inferred from the Network-MT investigation in the Shikoku district, southwestern Japan, Earth Planets Space, 51, 193-203, 1999.
Yamamoto, M., H. Kawakatsu, S. Kaneshima, T. Mori, T. Tutui, Y. Sudo, and Y. Morita, Detection of a crack-like conduit beneath the active crater at Aso volcano, Japan, Geophys. Res. Lett., 26, 3677-3680, 1999.
Yamamoto, M., H. Kawakatsu, S. Kaneshima, T. Iidaka, J. Oikawa, S. Watada, Y. Morita, T. Mori, T. Tsutsui, Y. Sudo, M. Yoshikawa, T. Hashimoto, M. Nakabo (1999), ASOBOI97: Aso Seismic Observation with Broadband Instruments in 1997 , Bull. Earthquake Res. Inst., 74, 267-285.



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