OGUCHI, Takashi / Professor / Division of Environmental Studies
Department of Natural Environmental Studies / / Physical Geography, Geographical Information Systems, Geomorphology

Career Summary
1985: Graduated, Faculty of Science, Univ. Tokyo
1991: Assistant Professor, Faculty of Science, Univ. Tokyo
1997: Visiting Scholar, Univ. Arizona, USA
1997: Visiting Scholar, Institute of Hydrology, UK
1998: Associate Professor, Center for Spatial Information Science, Univ. Tokyo
2007: Adjunct Faculty, Univ. Memphis, USA
2009: Professor, Center for Spatial Information Science, Univ. Tokyo
Educational Activities
Graduate School: Environmental Information Science
Geographical Information Science, Graduate School of Science
Research Activities
My group has been conducting research in physical geography, mainly geomorphology and hydrology. We often use geographical information systems (GIS) as our main analytical tool. We conduct research at an international level. Areas recently studied include East Asia, Italy, Syria and the UK. Our major research topics are rivers, alluvial fans, hillslopes, riverine water quality, surveying, and geoarchaeology. Currently ongoing projects include 1) research on increased rainfall and landslide hazards in Japan in response to global warming; 2) investigation of sediment delivery after volcanic eruption at Vesuvius in Italy and Pinatubo in the Philippines; and 3) GIS analysis of water quality data in British and Japanese watersheds. Ten major recent publications from my group are listed below.
1) Hashimoto, A., Oguchi, T., Hayakawa, Y., Lin, Z., Saito, K. and Wasklewicz, T.A. (2008): GIS analysis of depositional slope change at alluvial-fan toes in Japan and the American Southwest. Geomorphology (in press).
2) Oguchi, T., Hori, K., Watanuki, T., Oguchi, C.T., Komatsubara, J. and Hayakawa, Y. (2008): Fluvial surfaces along the Khabur River near Tell Seker al-Aheimar and their palaeoenvironmental implications. In: Nishiaki, Y., Kashima, K. and Verhoeven, M. (eds.) Neolithic Archaeology in the Khabur Valley, Upper Mesopotamia and Beyond. UMUT Monograph Series (in press).
3) He, H. and Oguchi, T. (2008): Late Quaternary activities of the Zemuhe and Xiaojiang faults in southwest China from geomorphological mapping. Geomorphology (in press).
4) Hayakawa, Y.S., Oguchi, T., Komatsubara, J., Ito, K., Hori, K. and Nishiaki, Y. (2007): Rapid on-site topographic mapping with a handheld laser range finder for a geoarchaeological survey in Syria. Geographical Research, 45, 95-104.5) Takagi, T., Oguchi, T., Matsumoto, J., Grossman, M.J., Sarker, M.H. and Matin, M.A. (2007): Channel braiding and stability of the Brahmaputra River, Bangladesh, since 1967: GIS and remote sensing analyses. Geomorphology, 85, 294-305.
6) Hayakawa, Y.S. and Oguchi, T. (2006): DEM-based identification of fluvial knickzones and its application to Japanese mountain rivers. Geomorphology, 78, 90-106.
7) Lin, Z. and Oguchi, T. (2006): DEM analysis on longitudinal and transverse profiles of steep mountainous watersheds. Geomorphology, 78, 77-89.
8) Hayakawa, Y. and Oguchi, T. (2005): Evaluation of gravel sphericity and roundness based on surface-area measurement with a laser scanner. Computers & Geosciences, 31, 735-741.
9) Lin, Z. and Oguchi, T. (2004): Drainage density, slope angle, and relative basin position in Japanese bare lands from high-resolution DEMs. Geomorphology, 63, 159-173.
10) Siakeu, J., Oguchi, T., Aoki, T., Esaki, Y. and Jarvie, H.P. (2004): Change in riverine suspended sediment concentration in central Japan in response to late 20th century human activities. Catena, 55, 231-254.
Other Activities
1) Editorship of international journals: Co-Editor-in-Chief: Geomorphology (Elsevier). Member of Editorial Board: Catena (Elsevier), Geography Compass (Blackwell), The Open Geology Journal (Bentham Science). Member of International Advisory Board: Geographical Research (Blackwell).
2) Steering committee member of international scientific organizations: Working Group of Human Impact on the Landscape, International Association of Geomorphologists (Vice chair); Commission on Land Degradation and Desertification, International Geographical Union; Working Group of Planetary Geomorphology, International Association of Geomorphologists; Trans Asiatic GIS Society.
Future Plan
Conduct more interesting studies with colleagues, and publish papers in international journals.
Messages to Students
There are no country borders in scientific research. Let us enjoy nature, clutures and friendships all over the world through conducting research.