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Rapid frazil ice production in coastal polynya: Laboratory experiments
https://doi.org/10.15094/00003572
https://doi.org/10.15094/00003572faf28fff-aa4f-4739-a966-1ed6c1b4680a
名前 / ファイル | ライセンス | アクション |
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KJ00000035538 (1.3 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||||
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公開日 | 1989-08-01 | |||||||||
タイトル | ||||||||||
タイトル | Rapid frazil ice production in coastal polynya: Laboratory experiments | |||||||||
言語 | ||||||||||
言語 | eng | |||||||||
資源タイプ | ||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
資源タイプ | departmental bulletin paper | |||||||||
ID登録 | ||||||||||
ID登録 | 10.15094/00003572 | |||||||||
ID登録タイプ | JaLC | |||||||||
ページ属性 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | P(論文) | |||||||||
著者名(英) |
Ushio,Shuki
× Ushio,Shuki
× Wakatsuchi,Masaaki
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著者所属(英) | ||||||||||
en | ||||||||||
Institute of Low Temperature Science, Hokkaido University/Institute of Low Temperature Science, Hokkaido University | ||||||||||
抄録(英) | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | Laboratory experiments were carried out to clarify the production processes of frazil ice in a wind-generated polynya. We measured the production rate of frazil ice formed from salt water in a test tank as a function of air temperature and wind speed. The results show that the production rate increased with increasing wind speed and with falling air temperature, and was about four to five times greater than that of sheet ice growing vertically. It is found that wind blowing continuously on the open water surface plays an important role in the process of rapid ice production; that is, the wind-driven current transports supercooled water which is formed on the surface to the underlayer and much frazil ice production occurs under water as the state of supercooling is maintained, because a large amount of heat is released from the open water. Convection phenomena in the tank were observed with a Schlieren optical system. Most brine excluded on the open water surface was transported with the ice crystals downwind through the wind-driven current and then fell vigorously mixing with surrounding water near the edge of accumulated frazil ice layer. | |||||||||
雑誌書誌ID | ||||||||||
収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AA10756213 | |||||||||
書誌情報 |
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology 巻 2, p. 117-126, 発行日 1989-08 |
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出版者 | ||||||||||
出版者 | National Institute of Polar Research |