発表論文リスト

(1)　グローバルスケールの研究

Koyama, T., H. Shimizu, and H. Utada, Possible effects of lateral heterogeneity in the D" layer on electromagnetic variations of core origin, Phys. Earth Planet. Int., 129, 99-116, 2002.

Shimizu, H., and H. Utada, 1999, Ocean Hemisphere Geomagnetic Network: its instrumental design and perspective for long-term geomagnetic observations in the Pacific, Earth Planets Space, 51, 917-932.

Shimizu, H., T. Koyama, and H. Utada, 1998, An observational constraint on the strength of the toroidal magnetic field at the CMB by time variations of submarine cable voltages, Geophys. Res. Lett., 25, 4023-4026.

Fujii, I., L.J. Lanzerotti, H. Utada, H. Kinoshita, J. Kasahara, L.V. Medford, and C.G. Maclennan, 1995, Geoelectric power spectra over oceanic distances, Geophys. Res. Lett., 22, 421-424.

Shimizu, H. and D.E. Loper, 2000, Small-scale helicity and alpha-effect in the Earth's core, Phys. Earth Planet. Int., 121, 139-155.
Shimizu, H. and D.E. Loper, 1997, Time and length scales of buoyancy-driven flow structures in a rotating hydromagnetic fluid, Phys. Earth Planet. Int., 104, 307-329.

(2) セミグローバル・リージョナルスケールの研究

Ichiki, M., Uyeshima, M., Utada, H., Zhao, G. and Tang, J., and Ma, M., Upper mantle conductivity structure of the back-arc region beneath northeastern China, Geophys. Res. Lett., 28, 3773-3776, 2001.

Zhao, G., J. Tang, H. Utada, M. Uyeshima, M. Ichiki, M. Ma, Z. Huang, and H. Wang, Measurement of Network-MT in two areas of NE China for study of upper mantle conductivity structure of the back-arc region, Seismology and Geology, 23, 143-152, 2001.

Uyeshima, M., H. Utada, and Y. Nishida, 2001, Network-MT method and its first results in central and eastern Hokkaido, Geophys. J. Int., 146, 1-19

Joseph, E.J., H. Toh, H. Fujimoto, R.V. Iyengar, B.P. Singh, H. Utada, and J. Segawa, 2000, Seafloor electromagnetic induction studies in the Bay of Bengal, Marine Geophys. Res., 21, 1-21.

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, 1999, Asymmetric Electrical Structure in the Mantle Beneath the East Pacific Rise at 17°S, Science, 286, No.5440, 752-756.

Yamaguchi, S., Y. Kobayashi, N. Oshiman, K. Tanimoto, H. Murakami, I. Shiozaki, M.Uyeshima, H. Utada, and N. Sumitomo, 1999, Preliminary report on regional resistivity variation inferred from the Network-MT investigation in the Shikoku district, southwestern Japan, Earth Planets Space, 51, 193-203.

Ichiki, M., M. Mishina, T. Goto, N. Oshiman, N. Sumitomo, and H. Utada, 1999, Magnetotelluric investigations for the seismically active area in Northern Miyagi Prefecture, northeastern Japan, Earth Planets Space, 51, 351-361.

Vanyan, L.L., H. Utada, H. Shimizu, Y. Tanaka, N.A. Palshin, V. Stepanov, V. Kouznetsov, R.D. Medzhitov, and A. Nozdrina, 1998, Studies on the lithosphere and the water transport by using the Japan Sea Cable (JASC): 1. Theoretical considerations, Earth Planets Space, 50, 35 - 42.

Shimoizumi, M., T. Mogi, M. Nakada, T. Yukutake, S. Handa, Y. Tanaka, and H. Utada, 1997, Electrical conductivity anomalies beneath the western sea of Kyushu, Japan, Geophys. Res. Lett., 24, 1551-1554.

(3)　ローカルスケールの研究

笹井洋一，上嶋　誠，歌田久司，Jacques Zlotnicki，橋本武志，高橋優志，2001，地磁気・地電位観測から推定される三宅島火山の2000年活動，地学雑誌，110， 226-244．

Utada, H., M. Neki, and T. Kagiyama, 2000, A study of annual variations in the geomagnetic total intensity with special attention to detecting volcanomagnetic signals, Earth Planets Space, 52, 91-103.

Kagiyama, T., H. Utada, and T. Yamamoto, 1999, Magma ascent beneath Unzen Volcano, SW Japan, deduced from the electrical resistivity structure, J. Volcan. Geotherm. Res., 89, 35-42.

鍵山恒臣・歌田久司・三ヶ田均・筒井智樹・増谷文雄, 1997, 霧島火山群の構造とマグマ供給系, 火山, 42, S157-S165.

鍵山恒臣・歌田久司・上嶋　誠・増谷文雄・神田　径・田中良和・増田秀晴・村上英記・塩崎一郎・市来雅啓・行武　毅・茂木　透・網田和宏・大志万直人・三品正明, 1997, 霧島火山群南東部の比抵抗構造, 火山, 41, 215-225.

Kanda, W., H. Utada, M. Mishina, and N. Sumitomo, 1996, A Deep Transient EM Experiment in the Northern Part of Miyagi Prefecture, Northeastern Japan, J. Geomag. Geoelectr., 48, 1265-1280.

(4) 実験室スケールに近いスケールの研究

Yamamura K., O. Sano, H. Utada, Y. Fukao, S. Nakano, and Y. Takei, Long-term Observation of Tidal Variations of in Situ Seismic Velocity and Attenuation, J. Geod. Soc. Japan, 47, 1, 482-487, 2001.

Utada, H., T. Yoshino, T. Okubo, and T. Yukutake, 1998, Seismic resistivity changes observed at Aburatsubo, central Japan, revisited, Tectonophysics, 299, 317-331.

(5) その他の地球電磁気学的問題の解明

Palshin N.A., L.L. Vanyan, R.D. Medzhitov, G.I. Shapiro, M.A. Evdoshenko, H. Utada, H. Shimizu, and Y. Tanaka, 2001, Use of the Nakohdka-Naoetsu submarine cable for studying the temporal variability of the integral water transport in the sea of Japan, Oceanology, 41, 447-453.

Vanyan LL, Palshin NA, Utada H, Shimizu H, and Nikiforov VM, 2000, Study of the telluric field using the submarine cable across the Sea of Japan, IZVESTIYA-PHYSICS OF THE SOLID EARTH, 36, 539-548.

Ogawa, T, and H. Utada, 2000, Coseismic piezoelectric effects due to a dislocation 1. An analytic far and early-time field solution in a homogeneous whole space, Phys. Earth Planet. Int., 121, 273-288.

Ogawa, T., and H. Utada, 2000, Electromagnetic signals related to incidence of a teleseismic body wave into a subsurface piezoelectric body, Earth Planets Space, 52, 253-260.

Utada, H., and H. Munekane, 2000, On galvanic distortion of regional three-dimensional magnetotelluric impedances, Geophys. J. Int., 140, 385-398.

Utada, H. , 1996, Difficulty of statistical evaluation of an earthquake prediction method, Geophys. Res. Lett., 23, 1391-1394.

Utada, H., 1993, On the physical background of the VAN earthquake prediction method, Tectonophysics, 224, 153-160.