THE RELATIONSHIP AMONG ACCUMULATION RATE, STABLE ISOTOPE RATIO AND SURFACE TEMPERATURE ON THE PLATEAU OF EAST DRONNING MAUD LAND, ANTARCTICA

元データ 国立極地研究所

概要

During traverses in East Dronning Maud Land, which includes Dome Fuji Station (77°19′01″S, 39°42′12″E, elevation 3810m a.s.l.), many glaciological observations have been conducted by the Japanese Antarctic Research Expedition. Among the quantities observed are annual net accumulation (A_<cc> : kg m^<-2>), stable oxygen isotope composition (δ^<18>O : ‰) in the surface snow and mean annual surface temperature distribution. The characteristics of these quantities have been analyzed, and the following equation relating them was obtained : A_<cc>=1.104×10^5exp (0.1462δ^<18>O). In addition, a relation between δ^<18>O and surface temperature has been obtained. These relations suggest a possibility that core chronology and surface temperature variations can be reproduced from the δ^<18>O values in the 2500m-deep ice core drilled at Dome Fuji Station.

著者

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
Satow Kazuhide Nagaoka National College of Technology
Shoji Hitoshi Kitami Institute of Technology
Watanabe O National Institute Of Polar Research Research Organization Of Information And Systems
Watanabe Okitsugu National Institute Of Polar Research
Kawaguchi Sadao Nagaoka National College Of Technology
Shimohara Kimiko Kitami Institute of Technology
Motoyama Hideaki National Institute Of Polar Research
Kanamori Satoru Institute For Hydrospheric And Atmospheric Sciences Nagoya University
Satow Kazuhide Nagaoka College Of Technology
Watanabe Okitsusgu National Institute of Polar Research
Kanamori Satoru National Institute of Polar Research
Satow Kazuhide Nagoya Technical College
Shinbori K Hokkaido Univ. Sapporo
Koga S National Inst. Resources And Environment Tsukuba
Motoyama Hideaki National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa-shi Tokyo 190-8518 Jpn

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