Hajime YAMAGUCHI Professor

Hajime Yamaguchi Professor 
Ocean Information Systems 



Private Website

Career Summary
1978: Bachelor of Engieering, Faculty of Engineering, The University of Tokyo
1980: Master of Engineering, The University of Tokyo
1983: Doctor of Engineering, The University of Tokyo
1983-1985: Lecturer, The University of Tokyo
1985-2000: Associate Professor, The University of Tokyo
1992-1993: Guest Researcher, Institute for Ocean Technology, National Research Council, Canada
2000-present: Professor, The University of Tokyo

Educational Activities
Graduate School: Creation of an Ocean Environment, Applied Fluid Dynamics, Polar Environment
School of Engineering: Fluid Dynamics A, Harmonious Environment Management, Motivation Project A, Applied Project for Environment and Energy
College of Arts and Sciences: Environmental and Energy Engineering, Solutions for Environment and Energy Issues, Attraction and Fundamentals of Oceans, Utilization of Oceans for a Sustainable World
Mie University: Fluid Machinery System Engineering
Hosei University: Polar Environment

Research Activities
Numerical Forecast of Environmental Changes in Ice-Covered Seas
Sea ice drifts on the surface of the sea, contributes negatively to its heat budget, and has a significant influence for not only the local environment but also the entire global environment. We are developing a technology for numerically forecasting changes in sea ice and the ocean, including the ecosystem. We are working on not only the computation but also the analyses of satellite remote-sensing data and field measurements in the Arctic Ocean and the Sea of Okhotsk. These data are used to improve the accuracy of calculations. Several joint researches are currently being performed with the Japan Meteorological Agency, the Institute of Low Temperature Sciences of Hokkaido University, the Earth Simulator Center, and a private weather forecast company. These works contribute to achieving environmentally harmonious developments, such as the utilization of the Arctic Ocean for a new sea route, and safe and efficient transportation and development in ice-covered seas, as well as scientific and meteorological targets. (Literature 1, 2 and 4)

Development of Marine Environment Management System
We are developing a multi-scale environmental simulator that can express global and local marine environments. We are also developing a method of strategic environmental assessment (SEA) as well. These are combined with a geographic information system (GIS) to construct a marine environment management system. This system is connected to the Internet to display results quickly and efficiently for not only researchers but also the general population in an easily understandable manner. The system can become a policy proposal tool. (Literature 3) 

Power Generation by Current and/or Tidal Current
Water has high energy density, so a water turbine can generate the same amount of power as a wind turbine one-order larger. By conducting reliable strategic environmental assessments and environmental impact assessments, I want to develop a real current and the tidal current power generation plant.

1) Yamaguchi, H. and Fujisaki, A.: Sea-Ice Forecasting Improvement in the Southern Okhotsk Sea, Sea Technology, Compass Publications Inc., Vol.48 No.10 (Oct. 2007), 31-35.
2) Fujisaki, A., Yamaguchi, H., Duan, F. and Sagawa, G.: Improvement of Short-Term Sea Ice Forecast in the Southern Okhotsk Sea, Journal of Oceanography, Vol. 63 (2007) 775-779.
3) Yamaguchi, H. and Duan, F.: Environmental Impact Assessment Using JANSROP-GIS Data: Possibilities and Prospects, New Era in Far East Russia & Asia, ISBN4-88404-169-0 (2006), 181-199.
4) Kitagawa, H., Ono, N., Yamaguchi, H., Izumiyama, K. and Kamesaki, K.: Northern Sea Route - The Shortest Sea Way between East Asia and Europe, ISBN 4-88404-027-9 (2001)

Other Activities
Member of The Oceanographic Society of Japan, and eight other societies.
Member of National Committee on Antarctic Transportation and several other committees.
I was deeply involved in the management of the International Northern Sea Route Programme (INSROP), conducted by Japan, Norway and Russia from 1993 to 2005. I was a leader of the Experimental Voyage through the Northern Sea Route in 1995, and led this first trial voyage to success.

Future Plan
The Basic Law of Ocean was approved in April, 2007 and enforced on Ocean Day, July 20. Both the use and the environmental protection of the ocean have become basic policies in Japan because Japan lacks resources, energy, food and land mass but has an extensive exclusive economic zone (EEZ) in the ocean. Professors of this department have contributed to the approval of this law in no small way, and with strong zeal are taking responsibility to achieve the purpose of this law. I aims at the establishment of integrated oceanography for this goal.

Messages to Students
Let's go outside. Let's talk with people of different backgrounds. Don't be an OTAKU researcher.