A bipolar comparison of deep ice cores from Antarctica(Dome Fuji)and Greenland(GRIP) (scientific paper)

元データ 国立極地研究所

概要

Oxgen isotope ratio and chemistry profiles were compared to find the corresponding interstadials during the Wisconsin Ice Age between the GRIP (Greenland) and Dome Fuji (Antarctica) deep ice core data for the past one hundred and sixty thousand years. Eight interstadials in GRIPδ^<18>O profile were found to correspond to those in Dome Fuji δ^<18>O profile. Eleven interstadials in GRIPδ^<18>O profile were found to correspond to those in Dome Fuji chemistry (calcium, nitrate and sulfate) profile, which is better suited for the purpose of interstadial search than the δ^<18>O profile at Dome Fuji. The Eemian interglacial period at Dome Fuji seems to be much shorter and more stable than that in the GRIP profile. Three major periods having higher contents of calcium, nitrate and sulfate appear at Dome Fuji, ranging (1) between interstadials number 1 and 8, (2) between interstadials number 17 and 19, and (3) before the Eemian, which correspond to relatively cold and stable periods in the GRIP δ^<18>O profile. These findings promise a favorable outcome from more detailed bipolar comparison in the future for an understanding of climatic linkage conditions and the driving forces between northern and southern hemispheres.

著者

Shiraiwa T Institute Of Low Temperature Science Hokkaido University
藤井 理行 国立極地研究所
Motoyama Hideaki National Institute of Polar Research, Research Organization of Information and Systems
Watanabe Okitsugu National Institute of Polar Research, Research Organization of Information and Systems
Fujii Yoshiyuki National Institute of Polar Research, Research Organization of Information and Systems
Kamiyama Kokichi National Institute of Polar Research, Research Organization of Information and Systems
Igarashi Makoto National Institute of Polar Research, Research Organization of Information and Systems
Goto-Azuma Kumiko National Institute of Polar Research, Research Organization of Information and Systems
Narita Hideki Institute of Low Temperature Science Pan-Okhotsk Research Center, Hokkaido University
宮本 淳 北海道大学低温科学研究所
Kawada Kunio Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
張 紀久夫 阪大基:福井工大工
Kawamura Kenji Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
Takata Morimasa National Institute Of Polar Research
Shoji Hitoshi Kitami Institute of Technology
Miyamoto Atsushi Kitami Institute of Technology
Azuma Nobuhiko Nagaoka University of Technology
Shiraiwa T Disaster Prevention Research Institute Kyoto University
Saito Takashi Disaster Prevention Research Institute,Kyoto University
KOHNO Mika National Institute of Polar Research
Watanabe O National Institute Of Polar Research Research Organization Of Information And Systems
Watanabe Okitsugu National Institute Of Polar Research
Kamiyama K National Institute Of Polar Research Research Organization Of Information And Systems
Kamiyama Kokichi National Institute Of Polar Research
Goto‐azuma K National Institute Of Polar Research Research Organization Of Information And Systems
Saito T Institute Of Low Temperature Science Hokkaido University
Kohno M National Inst. Polar Res. Tokyo Jpn
Shimohara Kimiko Kitami Institute of Technology
Fujita Shuji National Institute of Polar Research
Nakazawa Takakiyo Center for Atmospheric and Oceanic Studies, Tohoku University
Aoki Shuji Center for Atmospheric and Oceanic Studies, Tohoku University
Kawada Kunio Toyama University
Clausen Henrik University of Copenhagen
Johnsen Sigfus University of Copenhagen
Motoyama Hideaki National Institute Of Polar Research
Narita Hideki Institute Of Low Temperature Science Pan-okhotsk Research Center Hokkaido University
Nakazawa Takakiyo Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
AOKI Shuhji National Institute of Polar Research
Goto-azuma Kumiko Nagaoka Institute Of Snow And Ice Studies National Research Institute For Earth Science And Disaster
Goto-azuma Kumiko National Institute Of Polar Research
Aoki S Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
Kawamura K Center For Atmospheric And Oceanic Studies Tohoku University
Kawada K Toyama Univ. Toyama
清水 明 東大教養
Aoki Shuji Center For Atmospheric And Oceanic Studies Graduate School Of Sci. Tohoku Univ.
Aoki Shuhji Faculty Of Science Tohoku University
Aoki Syuji National Institute Of Polar Research
Fujita Shuji Department Of Applied Physics Faculty Of Engineering Hokkaido University
Narita Hideki Institute Of Low Temperature Science Hokkaido University
Azuma N Nagaoka University Of Technology
清水 明 東大院総合文化・科技団
Fujii Yoshiyuki National Institute Of Polar Research
Fujii Yoshiuki National Institute of Polar Research
Watanabe Okitsusgu National Institute of Polar Research
Takahashi Shuhei Department Of Civil Engineering Kitami Institute Of Technology
Kawada Kunio Department Earth Science Toyama University
Kamiyama Kokichi National Institute Of Polar Research Research Organization Of Information And Systems
Nakazawa Takakiyo Center For Atmospheric And Oceanic Studies Graduate School Of Sci. Tohoku Univ.
Watanabe Okitsugu National Institute Of Polar Research Research Organization Of Information And Systems
Nakazawa Takakiyo Center For Atmospheric And Oceanic Studies Faculty Of Science
清水 明 Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
Shinbori K Hokkaido Univ. Sapporo
Nakazawa T Center For Atmospheric And Oceanic Studies Faculty Of Science
Koga S National Inst. Resources And Environment Tsukuba
Saito Takashi Disaster Prevention Research Institute Kyoto University
Igarashi Makoto National Institute Of Polar Research
Suzuki T Department Of Earth And Environmental Sciences Faculty Of Science Yamagata University
Motoyama Hideaki National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa-shi Tokyo 190-8518 Jpn
Fujita Shuji Faculty Of Engineering Hokkaido University
Igarashi Makoto National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa-shi Tokyo 190-8518 Jpn
Igarashi M National Institute Of Polar Research
SHIMIZU Akira Deparment of Physics, Rikkyo University

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