| Project/Area Number |
20540418
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Hokkaido University |
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Principal Investigator |
SUGIYAMA Shin Hokkaido University, 低温科学研究所, 講師 (20421951)
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| Research Collaborator |
TSUTAKI Shun 北海道大学, 環境科学院, 大学院生
NISHIMURA Daisuke 北海道大学, 環境科学院, 大学院生
YOSHIZAWA Takeshi 北海道大学, 環境科学院, 大学院生
MARTIN Funk スイス連邦工科大学, 教授
HEINZ Blatter スイス連邦工科大学, 教授
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 氷河 / 氷河湖 / 温暖化 / 数値モデル / 気候変動 / 国際研究者交流 / スイス / 気侯変動 |
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| Research Abstract |
To investigate the role of glacial lake formation in glacier retreat, we performed field study at Rhonegletscher, where a pro-glacial lake has been recently formed. Our data showed three-fold ice flow speed-up after the lake formation, resulting in significant increase in the ice thinning rate. When the ice became thinner than a threshold, glacier front got afloat and disintegrated in the lake. These observations revealed the mechanisms of glacier retreat triggered by lake formation. The research results contribute to the prediction of glacier evolution under the influence of a glacial lake.
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