Name : KATO,  Teruyuki
            Position : Professor
            Division/Center : Earthquake Prediction Research Center
            Research Area : Crustal Dynamics
            homepage : http://www.eri.u-tokyo.ac.jp/teru/index.html
 
 
 
 

Reserch

My group's major project is to apply GPS to crustal deformation researches and related problems. The biggest projects among others
       is to establish a permanent GPS array in the western Pacific area to monitor and help understand tectonic deformations in the area. So
       far since around 1995, we have established more than ten sites in the area. The results suggest that the displacement rates in the
       oceanic plates are consistent with geological plate motion mode, while significant deformation is found along the plate boundaries.
       Nankai trough and Mariana trough show siginificant backarc spreading. The collision of India toward Eurasian continent give long
       distance effects to east to Japan. Augumentation of sites in the China continent is thus important for finding strain partitioning and
       clarifying lithospheric properties and dynamics. Precise measurements of the Philippine Sea plate was estimated by conducting a
       special GPS experiment in Okino Torishima. Based on its results, the Euler pole of the plate relative to Eurasia was estimated very
       precisely. The second major project is to use the dense GPS array in Japan of GSI. Introduction of the Least Square Collocation
       technique successfully delineated the crustal strain over Japan from one year of data. Combining the GSI data together with University
       network in Ito area, the detailed temporal process of dyke intrusion are delineated. Further GPS application projects are: 1)
       development of Tsunami warning system using kinematic GPS, 2) experimental studies for detecting ocean bottom displacements
       using GPS-acoustic system, and 3) participating to the "GPS meteorology" project for estimating precipitable water vapor in the
       atmosphere.

Publications

 Takahashi H., M. Kasahara, F. Kimata, S. Miura, T. Seno, T. Kato, K. Heki, N. Vasilenko, A. Ivashchenko, V. Levin, V. Batiarov, E. Gordeev, F. Korchagin and M. Gerasimenko, Velocity field of around the Sea of Okhotsk and Sea of Japan Regions determined from a continuous GPS network data, Geophys. Res. Lett., 26, 2533--2537, 1999.

El-Fiky, G.S., and T. Kato, Continuous distribution of the horizontal strain in the Tohoku district, Japan, predicted by least-squares collocation, J. Geodynamics, 27, 213--236, 1999.

El-Fiky, G. S., and T. Kato, Interplate coupling in the Tohoku district, Japan, deduced from geodetic data inversion, J. Geophys. Res., 104, B9, 20361--20377, 1999.

Aoki, Y., P. Segall, T. Kato, P. Cervelli, and S. Shimada, Imaging magma transport during the 1997 seismic swarm off the Izu Peninsula, Japan, Science, 286, 928--930, 1999.

El-Fiky, G. S., T. Kato, and E. N. Oware, Crustal deformation and interplate coupling in the Shikoku district, Japan, as seen from continuous GPS observation, Tectonophysics, 314, 387--399, 1999.

G. El-Fiky and T. Kato, Study of periodic vertical crustal movement in the Omaezaki peninsula, Central Japan, and it's tectonic implications, Earth Planets Space, 51, 2000.

El-Fiky, G. S., and T. Kato, Crustal deformation and interplate coupling in the Shikoku District, Japan, as seen from continuous GPS observation, Tectonophysics, 314, 4, 387--399, 2000.

El-Fiky, G. S., and T. Kato, Study of periodic vertical crustal movement in the Omaezaki peninsula, Central Japan, and it's tectonics, Earth Planets Space, 52, 1, 25--35, 2000.

Li, J., K. Miyashita, T. Kato and S. Miyazaki, GPS time series modeling by autoregressive moving average method: Application to the crustal deformation in central Japan, Earth Planets Space, 52, 3, 155--162, 2000.

Kato, T., Y. Terada, M. Kinoshita, H. Kakimoto, H. Issiki, M. Matsuishi, A. Yokoyama, and T. Tanno, Real Time Observation of Tsunami by RTK-GPS, Earth Planets Space, 52, 10, 841--845, 2000.

Takiguchi, H., T. Kato, H. Kobayashi and T. Nakaegawa, GPS observations in Thailand for hydrological applications, Earth Planets Space, 52, 11, 913--919, 2000.

Gerasimenko, M. D., and T. Kato, Establishment of the three-dimensional kinematic reference frame by space geodetic measurements, Earth Planets Space, 52, 11, 959--963, 2000.

Reddy, C. D., G. El-Fiky, T. Kato, S. Shimada, and K. V. Kumar, Crustal strain field in the Deccan trap region, western India, derived from GPS measurements, Earth Planets Space, 52, 11, 965--969, 2000.

Fukuda, Y., M. Itahara, S. Kusumoto, T. Higashi, K. Takemura, H. Mawatari, Y. Yusa, T. Yamamoto, and T. Kato, Crustal movements around the Beppu Bay area, East-Central Kyushu, Japan, observed by GPS 1996-1998, Earth Planets Space, 52, 11, 979--984, 2000.

Gerasimenko, N. V. Shestakov, and T. Kato, On optimal geodetic network design for fault-mechanics studies, Earth Planets Space, 52, 11, 985--987, 2000.

Hori, M., T. Kameda and T. Kato, Prediction of stress field in Japan using GPS network data, Earth Planets Space, 52, 11, 1101--1105, 2000.

Isshiki, H., A. Tsuchiya, T. Kato, Y. Terada, H. Kakimoto, M. Kinoshita, M. Kanzaki, and T. Tanno, Precise variance detection by a single GPS receiver - PVD (Point Variance Detection ) Method, 測地学会誌, 46, 4, 239--251, 2000.

Isshiki, H., A. Tsuchiya, T. Kato, Y. Terada, H. Kakimoto, M. Kinoshita, M. Kanzaki, and T. Tanno, Precise variance detection by simplified kinematic GPS measurements - KVD (Kinematics for precise Variance Detection ) Method -, 測地学会誌, 46, 4, 253--267, 2000.

Kato, T., and G. S. El-Fiky, Strain rate distribution in Taiwan before the 1999 Chi-Chi, Taiwan earthquake derived from GPS observations, Bull. Earthq. Res. Inst., 75, 93--104, 2000.