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The atmospheric conditions for extremery low air temperatures at Mizuho Station, Antarctica
https://nipr.repo.nii.ac.jp/records/1495
https://nipr.repo.nii.ac.jp/records/1495062a87d9-f825-481b-8489-11a55fe49237
名前 / ファイル | ライセンス | アクション |
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KJ00000012128.pdf (936.3 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||
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公開日 | 1983-11-01 | |||||||
タイトル | ||||||||
言語 | en | |||||||
タイトル | The atmospheric conditions for extremery low air temperatures at Mizuho Station, Antarctica | |||||||
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 | |||||||
ページ属性 | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | P(論文) | |||||||
著者名(英) |
Ohata, Tetsuo
× Ohata, Tetsuo
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著者所属(英) | ||||||||
en | ||||||||
Water Research Institute, Nagoya University | ||||||||
抄録(英) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | At Mizuho Station (70°42′S, 44°20′E, 2230m), there were 17 days with extremely low air temperature of below -50℃ in the winter of 1980. The atmospheric conditions were investigated to clarify the conditions requisite for the occurrence of these cases. The aerological data at Syowa Station (69°00′S, 39°35′E) were used for this analysis. For the occurrence of extremely low air temperature at Mizuho Station, the following conditions are required : The wind direction at the level of 600mb which can be considered to be the geostrophic flow above the inversion layer, should be from south to west (S-W) at Syowa Station. The wind direction at Mizuho Station is from SE-SW, meaning the synoptic scale pressure gradient from SW-NW to NE-SE which is in the opposite direction of the fall line there. The moisture content of the air mass should be low so that there is no cloud formation. Also the air temperature has to be at least lower than the monthly mean. If these conditions are satisfied, quite strong temperature inversion will occur near the surface, resulting in extremely low surface air temperature. Wind speed at the surface level is only a little lower than the average. | |||||||
雑誌書誌ID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AA00733561 | |||||||
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue 巻 29, p. 16-23, 発行日 1983-11 |