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超音波測定機器を用いた河川結氷時の河氷底面形状の現地調査
https://kitami-it.repo.nii.ac.jp/records/7759
https://kitami-it.repo.nii.ac.jp/records/77598f7460a3-848d-4c0d-8a06-6b8e2290187c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
2012-06_超音波測定機器を用いた河川結氷時の河氷底面形状の現地調査.pdf (1.3 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2015-06-09 | |||||||||
| タイトル | ||||||||||
| タイトル | 超音波測定機器を用いた河川結氷時の河氷底面形状の現地調査 | |||||||||
| 言語 | ja | |||||||||
| タイトル | ||||||||||
| タイトル | FIELD OBSERVATIONS OF SHAPE PROFILE OF RIVER ICE UNDERSIDE USING ACOUSTIC SONAR IN ICE-COVERED RIVER | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | jpn | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Acoustic Sonar | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | ADCP | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | shape profile of river ice underside | |||||||||
| 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 | |||||||||
| 著者 |
橋場, 雅弘
× 橋場, 雅弘
× 吉川, 泰弘
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| 著者別名 | ||||||||||
| 識別子Scheme | WEKO | |||||||||
| 識別子 | 39858 | |||||||||
| 姓名 | HASHIBA, Masahiro | |||||||||
| 言語 | en | |||||||||
| 著者別名 | ||||||||||
| 識別子Scheme | WEKO | |||||||||
| 識別子 | 39859 | |||||||||
| 姓名 | YOSHIKAWA, Yasuhiro | |||||||||
| 言語 | en | |||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | We observed the shape profile of river ice underside using acoustic rotary sonar. Firstly, we drilled small holes on the river ice, and put the rotary sonar into the water. Next, we measured the length of 16 directions from the rotary sonar to river ice. Then, we calculated 0.06×0.06(m)-mesh data from the observed data and transferred to the shape profile of river ice underside. We carried out another observation that is the time series vertical distribution of velocity using ADCP fixed at the river bed, and calculated roughness factor of river ice. Ice thickness estimated by roughness factor tended to decrease with time, it corresponded with the ice thickness observed by rotary sonar. To consider accuracy of our measurement, the observed shape profile of river ice underside compare with the calculated profile by ice thickness formula considering heat balance. The result shows good agreement with each other. It is clear that the shape profile of river ice underside was influenced by air temperature, water temperature, flow velocity and the depth from river ice to river bed. |
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| 書誌情報 |
ja : 河川技術論文集 巻 18, p. 149-154, 発行日 2012-06 |
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| 権利 | ||||||||||
| 権利情報 | c 2012 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 | |||||||||
| 言語 | ja | |||||||||
| 著者版フラグ | ||||||||||
| 言語 | en | |||||||||
| 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 | |||||||||
