Item: The Method for Estimating Outflow from The Snowpack Using the Simplified Heatbalance Model and the Percolation Model
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Title: The Method for Estimating Outflow from The Snowpack Using the Simplified Heatbalance Model and the Percolation Model
Proceedings: International Snow Science Workshop 2014 Proceedings, Banff, Canada
Authors:
- Masaya Shishido [ RailwayTechnical Reseach Institute, Kokubunji-shi,TOKYO, Japan ]
- Yasushi Kurihara [ Railway Technical Research Institute, Tokyo, JAPAN (Former) ]
- Daisuke Takahashi [ Railway Technical Research Institute, Tokyo, JAPAN ]
- Yasushi Kamata [ Railway Technical Research Institute, Tokyo, JAPAN ]
- Shigehiro Iikura [ Railway Technical Research Institute, Tokyo, JAPAN ]
Date: 2014-09-29
Abstract: To ensure the safety of train operations, it is important to estimate the outflow from the bottom of snowpack which might incur a full-depth avalanche. Therefore, the authors examined a simplified method for estimating the outflow from the bottom of snowpack, which can be applied to railway disaster prevention, on the basis of heat balance observations, snowmelt observations and previous studies. Consequently, the simplified method, which combines a snowmelt (heat balance) model and a percolation model, yields a good estimate of the outflow from the bottom of snowpack at 1hour intervals using four input data available from the nearest AMeDAS: i.e., air temperature, precipitation, wind speed and duration of sunshine.
Object ID: ISSW14_paper_P1.46.pdf
Language of Article: English
Presenter(s):
Keywords: snowmelt, outflow from snowpack, heat balance method, full-depth avalanche
Page Number(s): 636-643
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