Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1984-12-01 |
タイトル |
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言語 |
en |
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タイトル |
Some characteristics of drifting snow at Mizuho Station, East Antarctica, 1982 |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
著者名(英) |
Takahashi, Shuhei
Ohmae, Hirokazu
Ishikawa, Masao
Katsushima, Takayoshi
Nishio, Fumihiko
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著者所属(英) |
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en |
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Kitami Institute of Technology/The Institute of Low Temperature Science, Hokkaido University/The Institute of Low Temperature Science, Hokkaido University/Faculty of Science, Hokkaido University/National Institute of Polar Research |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Several measurements on drifting snow were carried out at Mizuho Station (70°42′S, 44°20′E, 2230m, above sea level)) East Antarctica, in 1982. Visibility was correlated to wind velocity on a logarithmic plot; it was proportional to about the -8 power of wind velocity over a year. This is explained by the reciprocal relation of visibility to drift density and the power relation of drift density to wind velocity. Moreover, visibility changed with the seasonal variation of daylight. The repose angle of drifting snow particles was observed by measuring the inclination of a cone shape deposit formed in sub-surface chamber. The repose angle was more than 80° in the case of snow falling and less than 80° in the case of no precipitation. The angle in the case of no precipitation showed a temperature dependence. The fall velocity of drifting snow particles in still air was observed. The fall velocity was between 0.3 and 0.9m/s and depended on wind velocity and snow particle shape. This dependence is explained by the change of particle size or drag coefficient. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00733561 |
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue
巻 34,
p. 122-131,
発行日 1984-12
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