1972-1976 Department of Geophysics, Faculty of Science, Hokkaido University (BA)
1976-1978 Department of Geophysics, Faculty of Science, Hokkaido University (MSc)
1978-1985 Engineer, Japan Weather Association
1985-2002 Research Associate, Institute of Low Temperature Science, Hokkaido University
1992-1994 Visiting Scalar, Dep. of Applied Math. and Theoretical Physics, Univ. of Cambridge, England
1996 Visiting Scalar, Sandia Institute, New Mexico, U. S. A.
1999-2001 Member of Japan Antarctic Research Expedition 41
2002-2006 Senior Researcher, National Research Institute for Earth Science and Disaster Prevention
2006 Professor, Department of Environmental Science, Faculty of Science, Niigata University
2008 Professor, Graduate School of Environmental Studies, Nagoya University
2014-2015 Proffesor(invited), Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland
Doctor of Science (Hokkaido University, 1990)
Society Prize "Hirata Prize" by the Japanese Society of Snow and Ice (1990)
Society Prize "Science Award" by the Japanese Society of Snow and Ice (2004)
"Award for a distiguished service for Snow Avalanche hazard mitigation" by Ministry of Land Infrastructure and Transport (2007)
Society Prize "Outstanding paper award" by the Japanese Society of Snow and Ice (2011)
National and International Activity
Associate member of “Science Council of Japan” (2015 -)
Jury Member for PhD dissertation at Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland, 2014, “Influence of snow cover properties on avalanche dynamics”
Jury Member for PhD dissertation at Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland, 2014, “Liquid water flow in snow and hydrological implications”
Jury Member for PhD dissertation at University Grenoble ALPES, France 2013, “Measurement and Numerical simulation of Blowing snow in Antarctica”
Scientific editor: 2013 International Snow Science Workshop (ISSW2013, Grenoble, Chamonix), 2013
Chair: National Correspondence of International Association of Cryospheric Sciences (IACS), 2011- .
Member of judging committee: Swiss National Science Foundation - Research Grant Assessment、Switzerland, 2004..
Technical committee member: Working Group on Snow Classification WGSC, International Commission on Snow and Ice (ICSI), 2004 -2007.
Convener: International Union of Geodesy and Geophysics (IUGG2003, Sapporo), General Assembly, 2003.
Scientific Editor: International Symposium on Snow and Avalanches, Davos, Switzerland, June, 2003 organized by International Glaciological Society
Advisory Board: SATIE（Avalanche Studies and Model validation in Europe）organized by EU, 2003.
Member of judging committee: Swiss National Science Foundation - Research Grant Assessment, Switzerland, 2003.
Correspondent: International Glaciological Society
Reporter and Jury member of Joseph Fourier University "HABILITATION" commission, Grenoble, France, 1998
Associate Editor: International Symposium on Snow and Avalanches, Chamonix, France, 25 - 30, May, 1997 organized by International Glaciological Society
Jury Member for PhD dissertation at University of Science, Grenoble, France, 1997, "Contribution to physical and numerical modeling of drifting snow"
Scientific Editor, International Conference of "Avalanche and Related Subjects, Kirovsk, Russia", September, 1996, organized by "APATIT" JSC, RUSSIA.
Member of Advisory Board: SAME (Snow Avalanche Mapping and Warning in Europe), Europe Union Program, 1997-
Last updated 14th February 2015