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Dating of the Dome Fuji, Antarctica deep ice core (scientific paper)
https://nipr.repo.nii.ac.jp/records/2460
https://nipr.repo.nii.ac.jp/records/24606729d6b2-217b-4073-9f48-5c5c7ab25e9a
名前 / ファイル | ライセンス | アクション |
---|---|---|
KJ00000011444 (310.7 kB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2003-03-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Dating of the Dome Fuji, Antarctica deep ice core (scientific paper) | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | dating | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Dome Fuji core | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | oxygen isotope ratio | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | annual layer thickness | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | climatic change | |||||
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) |
Watanabe, Okitsugu
× Watanabe, Okitsugu× Shoji, Hitoshi× Satow, Kazuhide× Motoyama, Hideaki× Fujii, Yoshiyuki× Narita, Hideki× Aoki, Shuji |
|||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research/Kitami Institute of Technology/Nagaoka National College of Technology/National Institute of Polar Research/National Institute of Polar Research/Institute of Low Temperature Science,Hokkaido University/Center for Atmospheric and Oceanic Studies,Tohoku University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Antarctic ice sheet preserves paleo-climate information in the form of physical and chemical stratigraphy. A deep ice core was continuously drilled down to a depth of 2,503 m at Dome Fuji station, East Dronning Maud Land, Antarctica, during the 1993-97 JARE inland operations. Oxygen isotope measurements were conducted on 7 to 50 cm-long ice core samples selected from the entire core depth. A time scale for the Dome Fuji core is calculated from past accumulation rates and an ice flow model. Past accumulation rates were converted from oxygen isotope values by using an empirical equation obtained in the Dome Fuji area. A steady-state flow model was preciously developed for a time scale calculation of the Summit ice core, Greenland. Using reference depth points from volcanic signals and annual layer thickness values measured on the Dome Fuji core allows for tuning of the calculated time scale. A depth-age profile was obtained for the past 320 kyr. The obtained paleo-temperature profile shows the characteristics of the past three glacial and interglacial periods. The power spectrum of ƒÂ18O change over an interval of 320 kyr reveals three dominant cycles. The paleo-temperature profile coincides quite well with the Vostok ice core data in general but not in detail, suggesting that further studies are needed both for chronological investigations and a multi-factor, cross-correlation analysis between deep ice cores for climatological understanding. | |||||
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 57, p. 25-37, 発行日 2003-03 |