1995 Fiscal Year Final Research Report Summary
Studies on Fractionation of Chemical Constituents in Snowpack at the Time of Snowmelt and Formation of Ice Body in Snow Patch.
| Project/Area Number |
06452437
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
KODAMA Yuji Hokkaido Univ., Inst.of Low Temp.Sci.INST., 低温科学研究所, 助手 (70186708)
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| Co-Investigator(Kenkyū-buntansha) |
SEKO Katsumoto Nagoya Uni., Inst.of Atmos.and Hdros.Sci.INST., 大気水圈研究所, 助手 (70196971)
SHIRAIWA Takayuki Hokkaido Univ., Inst.of Low Temp.Sci.Aso.PRO., 低温科学研究所, 助手 (90235739)
NISHIMUA Kouichi Hokkaido Univ., Inst.of Low Temp.Sci.INST., 低温科学研究所, 助手 (10180639)
ISHII Yoshiyuki Hokkaido Univ., Inst.of Low Temp.Sci.INST., 低温科学研究所, 助手 (40222955)
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| Project Period (FY) |
1994 – 1995
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| Keywords | snow patch / chemical anlysis / electric conductivity / stratification / fractionation |
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| Research Abstract |
Many snow patches have ice bdoy at the bottom. They are formed not only by the refreezing of percorated snowmelt water in the early spring, but also by the refreezing of meltwater stored over the ice body in late autumn. The chemical constituents in the firn and their amout are substantially affected by the snowmelt water.
There are two types of snow patches distinguished by its formation. One is a snow drift type and another is a avalanch accumulated type. The avalanch accumulated type rarely has ice body at teh bottom due to the large thichness, which prevents cold wave penetration and therefore refreezing of meltwater stored inside the snow patch.
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