Institute of Low Temperature Science

I started my study on glaciers in April 2000 as a student of doctoral program in Hokkaido University. The focus of my study was dynamics of mountain glaciers, particularly on basal flow mechanisms under temperate glaciers.
My first scientific field campaign was in Koryto Koryto Glacier in Kamchatka from July to September 2000. I constructed a wire strain measurement system which enables us to know continuous and high resolution strain on a glacier surface. In 2001, I stayed in Swiss Federal Institute of Technology for six months. I joined a research project on Unteraargletscher and spent two months in total on this glaceir. GPS survey and borehole depth measurements gave interesting results on short term variations in glaceir motion.
After the field studies, I used most of time in 2002 for reading books to develop a numerical glaceir flow model. The consequence of the study for three years was my Ph. D. thesis entitled "Short-term flow variations under the control of basal conditions in a temperate valley glacier".�@

• Ph.D. Research Proposal
• Abstract of the Ph.D. thesis
  
  
• Wire strain meter (Annual meeting of Japanese Society of Snow and Ice in Kaga 2000)
  
• Koryto Glacier report1 (International Symposium on Atmosphere-Ocean-Cryosphere Interaction in the Sea of Okhotsk and Surrounding Environment in Sapporo 2000)
  
• Koryto Glacier report2 (International Symposium on Ice and Water Interactions in Portland 2004)
  
• Basal sliding experiment (Annual meeting of European Geosciences Union in Nice 2004)
  
  Picture Gallery
• Koryto Glacier, Kamchatka
  
• Unteraar Glacier, Switzerland
  
  Publications
  - Sugiyama, S. 2006. Measurements and modelling of diurnal flow variations in a temperate valley glacier. In Knight, P. K. eds. Glacier Science and Environmental Change. Blackwell Publishing, 345-347. [PDF]
  - Sugiyama, S., R. Naruse and Y. D. Murav'yev. 2005. Surface strain anomaly induced by the storage and drainage of englacial water in Koryto glacier, Kamchatka, Russia. Annals of Glaciology, 40, 232-236. [PDF]
  - Sugiyama, S. and G. H. Gudmundsson. 2004. Short-term variations in glacier flow controlled by subglacial water pressure at Lauteraargletscher, Bernese Alps, Switzerland. Journal of Glaciology, 50(170), 353-362. [PDF]
  - Sugiyama, S., G. H. Gudmundsson and J. Helbing. 2003. Numerical investigation of the effects of temporal variations in basal lubrication on englacial strain-rate distribution. Annals of Glaciology, 37, 49-54. [PDF]
  - Yamaguchi S., R. Naruse, S. Sugiyama, T. Matsumoto, Y. D. Murav'yev. 2003. Initial investigations of dynamics of the maritime Koryto glacier, Kamchatka, Russia. Journal of Glaciology, 49(165), 173-178.
  - Sugiyama, S. 2003. Influence of surface debris on summer ablation in Unteraar- and Lauteraargletscher, Switzerland. Bulletin of Glaciological Research, 20, 41-47. [PDF]
  - Sugiyama, S. and G. H. Gudmundsson. 2003. Diurnal variations in vertical strain observed in a temperate valley glacier. Geophysical Research Letters, 30(20), 1090. [PDF]
  

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