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Oxygen Isotope Profiles in Adjacent Cores from Mizuho Station, East Antarctica
https://nipr.repo.nii.ac.jp/records/1186
https://nipr.repo.nii.ac.jp/records/118683a965af-bc01-449f-be8f-ec880becfdba
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||||
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公開日 | 1981-10-01 | |||||||||
タイトル | ||||||||||
言語 | en | |||||||||
タイトル | Oxygen Isotope Profiles in Adjacent Cores from Mizuho Station, East 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) |
Kato, Kikuo
× Kato, Kikuo
× Watanabe, Okitsugu
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著者所属(英) | ||||||||||
en | ||||||||||
Water Research Institute, Nagoya University | ||||||||||
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 | Oxygen isotopic composition (δ^<18>O) in the cores from the Antarctic and Greenland ice sheets provides important information about paleoclimatic records. However, the interpretation of the δ^<18>O values in the cores is not always easy. Mizuho Station is under the influence of a stationary katabatic wind. Periods of erosion, deposition and neither occur on the snow surface around Mizuho Station. Therefore, the interpretation of δ^<18>O values in the cores from the station are more complicated. In the present study was discussed how to obtain information about paleoclimatic records from δ^<18>O in the cores. δ^<18>O values of thick and fine-grained layers with little-developed depth hoar were considered to provide the best information about paleo-temperature records, taking into consideration the following factors : 1) Snow does not always accumulate in every season. 2) A glazed surface is occasionally exposed over one year, resulting in an interruption in the annual layer (s). Subsequent movement of water vapor in firn occurs during depth hoar formation under a large temperature gradient. 3) The variation in annual air temperature is best shown by the air temperature in winter. The profile of δ^<18>O of such layers of one core agrees well with the profile of δ^<18>O of the long depth interval of another core, which is considered to provide information about the trend of variation of mean air temperature in the long term. | |||||||||
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 19, p. 243-252, 発行日 1981-10 |