Impact of the Resolution of GCM output on the Snow Water Equivalent Estimation
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- Matsui Yusuke
- Graduate school of Engineering, Kyoto University
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- Tanaka Shigenobu
- Disaster Prevention Research Institute, Kyoto University
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- Tanaka Kenji
- Disaster Prevention Research Institute, Kyoto University
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- Hamaguchi Toshio
- Disaster Prevention Research Institute, Kyoto University
Bibliographic Information
- Other Title
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- GCM出力の解像度が積雪水量推定に及ぼす影響
Abstract
Various kinds of GCM output are provided in the<br>SOUSEI program. Compared with 20km GCM, 60km GCM has many number of <br> ensemble members. Although 60km is relatively high resolution in GCMs, complex<br>topography in Japan region is not well represented. In snowy regions, basins<br>facing the Sea of Japan, water from snowmelt can be used as irrigation water.<br>As the evaluation of snow water amount is crucial for assessing the impact of<br>climate change on water resources, effect of the resolution of GCM output on<br>the snow water equivalent is investigated by the land surface model’s output<br>driven by original (20km) resolution and up-scaled (60km) resolution. Annual<br>maximum SWE ratio by 60km-scale analysis and 20km-scale analysis is explained<br>by winter season’s precipitation, standard deviation of sub-grid scale<br>elevation, and precipitation weighted average winter season’s temperature from <br> multiple regression analysis with determination coefficient of 0.92 for 300-600m<br>elevation zone.
Journal
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- Proceeding of Annual Conference
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Proceeding of Annual Conference 28 (0), 100030-, 2015
THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES
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Keywords
Details 詳細情報について
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- CRID
- 1390001205711710208
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- NII Article ID
- 130005491869
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed