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The Ice of the Southern Ocean
https://nipr.repo.nii.ac.jp/records/86
https://nipr.repo.nii.ac.jp/records/86cad48bff-bb04-4188-8fd1-3230234d0903
名前 / ファイル | ライセンス | アクション |
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KJ00000000938 (726.1 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||
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公開日 | 1967-02-01 | |||||||
タイトル | ||||||||
言語 | en | |||||||
タイトル | The Ice of the Southern Ocean | |||||||
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) |
Treshnikov, A. F.
× Treshnikov, A. F.
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著者所属(英) | ||||||||
en | ||||||||
The Arctic and Antarctic Research Institute | ||||||||
抄録(英) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | Regular sea ice observations off the coasts of Antarctica in the Mirny Station area have been made by the Soviet Antarctic Expedition since 1956. For eight years air ice reconnaissance over the Davis Sea has been made from Mirny Station during all the seasons of the year from the shore to the ice edge. During the voyages of the d/e ship O_B special observations on sea ice and icebergs have been made in the coastal zone of Antarctica. Physical properties, formation and desintegration of sea ice have been studied. The data obtained on sea ice peculiarities may be spread over a vast water area of the Southern Ocean. For many years the author has studied sea ice in the Arctic Ocean. The paper deals with general features of sea ice existence in the Antarctic and with differences. The formation and growth of ice from sea water both in the Arctic and Antarctic depend mainly upon air temperature and heat content in the sea. Disintegration and melting of ice in the Antarctic occur differently. Solar radiation, a great amount of diatoms included in the ice thickness and currents carrying ice out to the north into more warm waters play most important part here. The amount of old ice remaining in the Antarctic waters after the summer season is considerably less than in the Arctic waters. In the coastal zone of Antarctica due to ice cooling from ice cliffs, ice shelves and icebergs a great amount of intra-water ice crystals are formed. The crystals, coming to the surface, increase ice thickness. Due to great depths the width of the fast ice at the coasts of Antarctica is 20-30 miles, the width of the fast ice in the Arctic is hundreds of miles. A characteristic peculiarity of the Antarctic waters is the existence of icebergs. The icebergs have irregular spreading over the water area of the Southern Ocean. Soviet investigators have made an attempt to calculate the volume of fresh water in icebergs. It has been established that the annual runoff of fresh water from melting of icebergs is negligible and does not play any important part in the hydrological regime of the Southern Ocean. But icebergs have great influence on water temperature at coasts, on sea ice distribution and, consequently, on the conditions of the ship navigation in the Antarctic waters. | |||||||
雑誌書誌ID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AA00246775 | |||||||
書誌情報 |
Japanese Antarctic Research Expedition scientific reports. Special issue 巻 1, p. 113-123, 発行日 1967-02 |