書誌事項
- タイトル別名
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- Depth and density of hourly new snow computed with viscous compression model.
- ネンセイ アッシュク モデル ニ ヨル ジカン コウセツシン ト シンセツ ミツド
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The depth and density of new snow deposited during a given time interval are important practical information for avalanche forecasting, snow removal on roads and other applications. But, the depth of new snow cannot be measured automatically; it is obtained by measuring manually the depth of snow deposited on a snow board, which is cleared and set on the snow surface at regular intervals. Hence, Kominami et al.(1998)derived a method to compute the depth of daily new snow based on a viscous compression model of snow, by using values of total snow depth and precipitation measured hourly by an ultrasonic snow-depth meter and a rain- and snow-gauge respectively. In this paper, we compute the depth and density of hourly new snow by the method, and compare these with the values measured on a snow board in three winters from 1994-95 to 1996-97. The result shows that the computed values were fairly close to the measured values. The standard deviation of the computed depth was 0.88cm and the maximum difference was 4.3cm. The standard deviation of the computed density was 16 kg·m-3 for computed hourly snow depth of more than 2 cm. We have shown that the errors of hourly new snow depth mainly result from errors of total snow depth measured with an ultrasonic snow-depth meter, not from the viscous compression model.
収録刊行物
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- 雪氷
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雪氷 64 (1), 3-13, 2002
公益社団法人 日本雪氷学会
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詳細情報 詳細情報について
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- CRID
- 1390001206462384640
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- NII論文ID
- 10007760820
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- NII書誌ID
- AN00131221
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- ISSN
- 18836267
- 03731006
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- NDL書誌ID
- 6059732
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可