| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
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| Outline of Final Research Achievements |
We carried out ground-penetrating radar soundings and geodetic survey in 4 perennial snow patches in the northern Japanese Alps and considered the possibility of the active glacier. The Kakunezato and the Ikenotan perennial snow patches have large ice masses that had flowed over 2m/a. Hence, we regarded both the snow patches as active glaciers. Since the Kuranosuke perennial snow patch had flowed only 3cm/a, we regarded the snow patch as active glacier which had been transforming into perennial snow patch.
The climate condition of the alpine zone in the northern Japanese Alps was similar to that in equilibrium-line altitude (ELA) of Nisqually glacier, Cascade range, USA. This indicated that active glaciers could be formed and preserved under current climatic condition in the northern Japanese Alps. Some of the glaciers have lost only 12 to 16 percent of their surface areas between 1955 and 2016. Hence, the recent retreat of the glaciers in this region should be slow.
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