STUDY ON SNOWSTORM-INDUCED INCREASES IN FRAZIL SLUSH AND THE IDENTIFICATION OF POTENTIAL ICE JAM LOCATIONS ON THE OSOBETSU RIVER
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- TOYABE Toshihito
- 土木研究所 寒地土木研究所 道東支所
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- YOSHIKAWA Yasuhiro
- 北見工業大学 社会環境工学科
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- ABE Takaaki
- 土木研究所 寒地土木研究所 寒地河川チーム
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- KURODA Yasutaka
- 土木研究所 寒地土木研究所 寒地河川チーム
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- FUNAKI Jungo
- 土木研究所 寒地土木研究所 寒地河川チーム
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- SATO Yoshishige
- 北海道開発局 帯広開発建設部帯広河川事務所
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- TSUMURA Yoshitake
- 北海道開発局 釧路開発建設部
Bibliographic Information
- Other Title
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- オソベツ川における吹雪による晶氷増加とアイスジャム発生危険箇所の抽出に関する研究
- オソベツガワ ニ オケル フブキ ニ ヨル ショウヒョウ ゾウカ ト アイスジャム ハッセイ キケン カショ ノ チュウシュツ ニ カンスル ケンキュウ
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Abstract
In December 2014, an ice jam occurred on the Osobetsu River after a snowstorm. This study investigated factors that contribute to increases in frazil slush and identified locations prone to ice jams. Previous studies using a hydraulic model experiment showed that an ice sheet's Froude number become small where ice sheets are static or accumulated. Moreover, a frazil slush calculation model that is based on the theory of heat balance in stream water accurately reproduced the measured thickness of frazil slush. However, no previous studies on ice jams have taken into account the Froude numbers of ice sheets. Also, certain weather phenomena, such as snowstorms and avalanches, are not factored into the current model for calculating frazil slush thickness. Therefore, the authors developed the model such as to take into account the effect of snowstorms. Furthermore, we used the Froude number of the ice sheet to identify potential ice jam locations on the Osobetsu River.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 72 (4), I_601-I_606, 2016
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390001205353249664
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- NII Article ID
- 130005311997
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- NII Book ID
- AN10426673
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- ISSN
- 18808751
- 2185467X
- 09167374
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- NDL BIB ID
- 027184761
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed