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天塩川における河川解氷時の河氷の挙動に関する現地観測
https://kitami-it.repo.nii.ac.jp/records/7754
https://kitami-it.repo.nii.ac.jp/records/77540e5d1905-ffb4-4c2b-bc34-f29fe30be48e
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-06-09 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 天塩川における河川解氷時の河氷の挙動に関する現地観測 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | FIELD OBSERVATION OF RIVER ICE BEHAVIOR DURING BREAKUP IN THE TESHIO RIVER | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | SWIP | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ADCP | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | accuracy of instruments | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
その他のタイトル | ||||||
その他のタイトル | FIELD OBSERVATION OF RIVER ICE BEHAVIOR DURING BREAKUP IN THE TESHIO RIVER | |||||
著者 |
橋場, 雅弘
× 橋場, 雅弘× 吉川, 泰弘 |
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著者別名 | ||||||
姓名 | HASHIBA, Masahiro | |||||
言語 | en | |||||
著者別名 | ||||||
姓名 | YOSHIKAWA, Yasuhiro | |||||
言語 | en | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This study aimed to analyze field data on the behavior of river ice and hydraulic phenomena during river ice breakup collected using non-contact instruments of SWIP(Shallow Water Ice Profiler), ADCP and Echo-Sounder. We conducted an experiment with a large water tank in order to test the accuracy of instruments. In the field study, we observed the behavior of river ice and hydraulic phenomena seen in the Teshio River using SWIP and ADCP units. It was found that the rise of water levels during ice breakup tends to lag behind the maximum flow rate because of ice accumulation as well as ice jams formed in the upstream part of the river. A phenomenon was observed in which ice fragments and frazil that were formed upstream and flowed downstream moved under river ice. It was found that the Froude number under ice-covered conditions remains at about 0.1, and that the coefficient of roughness tends to decrease because of changes in river ice thickness. Based on analysis of the field data collected, we propose that ice-transport capacity can be described using a dimensionless flow strength formula. |
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書誌情報 |
河川技術論文集 巻 17, p. 365-370, 発行日 2011-07 |
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権利 | ||||||
権利情報 | c 2011 公益社団法人 土木学会 | |||||
出版者 | ||||||
出版者 | 公益社団法人 土木学会 | |||||
著者版フラグ | ||||||
値 | publisher | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |