2000 Fiscal Year Final Research Report Summary
Study on Variations of energy-water cycles over cold regions
| Project/Area Number |
11691124
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| Research Category |
Grant-in-Aid for Scientific Research (A).
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | NAGOYA UNIVERSITY |
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Principal Investigator |
FUKUSHIMA Yoshihiro Institute for Hydrospheric-Atmospheric Sciences, Nagoya University, Professor, 大気水圏科学研究所, 教授 (00026402)
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| Co-Investigator(Kenkyū-buntansha) |
KODAMA Yuji The Institute of Low Temperature Science, Hokkaido University, Assistant Professor, 低温科学研究所, 助手 (70186708)
OHATA Tetsuo The Institute of Low Temperature Science, Hokkaido University, Professor, 低温科学研究所, 教授 (90152230)
HIYAMA Tetsuya Institute for Hydrospheric-Atmospheric Sciences, Nagoya University, Assistant Professor, 大気水圏科学研究所, 助手 (30283451)
YOSHIKAWA Ken Faculty of Agriculture, Okayama University, Professor, 農学部, 教授 (50166922)
OHTA Takeshi Faculty of Agriculture, Iwate University, Associate Professor, 農学部, 助教授 (20152142)
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| Project Period (FY) |
1999 – 2000
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| Keywords | Tundra / Taiga / Mongolian grass field / Tibetan Plateau / Transfer processes of heat and water / Observation of atmospheric boundary layer / Isotopic ratio of H_2O / Hydrological modeling |
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| Research Abstract |
Transfer processes of heat and water (vapor) were observed on tundra, plain taiga, mountain taiga, Mongolian grass field, and Tibetan Plateau in eastern Eurasian Continent. Continuous measurement of one-dimensional heat and water vapor fluxes revealed clear seasonal variation due to latitudinal radiation forcing, Monsoon activity, and plant phonological activity. Observations of atmospheric boundary layer using radiosonde and airborne were carried out to derive aggregation processes of heat and water vapor fluxes from local (patch) to regional scales. Water transfer mechanisms in active layer of permafrost and in the atmospheric boundary layer were also derived using stable isotopic ratio of H_2O in Siberian and Tibetan permafrost regions. Regional hydrological modeling was done in the Lena river basin. This model included schemes representing one-dimensional heat and water vapor transfer, runoff process, and water transfer in river channel network.
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Research Products
(12 results)
