Studies on climatic and environmental changes during the last few hundred years using ice cores from various sites in Nordaustlandet, Svalbard (scientific paper)

元データ 国立極地研究所

概要

Ice coring and snow cover observations have been carried out at 3 sites in Nordaustlandet, Svalbard since 1995. The results of stratigraphic analyses, and chemical and δ^<18>O analyses from Vestfonna and Austfonna cores are presented here. The results from these sites show that most of the chemical constituents contained in the initial snow cover still remained in the ice cores, although re-distribution of them by melt water percolation had occurred. Anthropogenic increases in trace metals, sulfate and nitrate since about 1950 are detected. This suggests that ice-core chemistry records from Nordaustlandet, Svalbard, can be useful to reconstruct past atmospheric conditions. In addition to chemical records, δ^<18>O records, that correlate well with the temperature records in Svalbard, can be used to reconstruct past temperature changes.

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
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
Matoba Sumito Institute of Low Temperature Science Pan-Okhotsk Research Center, Hokkaido University
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
Kawada Kunio Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
Kawamura Kenji Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
Kameda Takao Kitami Institute of Technology
亀田 貴雄 北見工大
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
Motoyama Hideaki National Institute Of Polar Research
Matoba Sumito National Institute Of Polar Research
Narita Hideki Institute Of Low Temperature Science Pan-okhotsk Research Center Hokkaido University
Kameda T Kitami Inst. Technol. Hokkaido Jpn
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
Matoba Sumito Institute Of Low Temperature Science Hokkaido University
Matoba Sumito The Graduate University For Advanced Studies
Kawamura K Center For Atmospheric And Oceanic Studies Tohoku University
Kawada K Toyama Univ. Toyama
Narita Hideki Institute Of Low Temperature Science Hokkaido University
Watanabe Okitsusgu National Institute of Polar Research
Kawada Kunio Department Earth Science Toyama University
Kamiyama Kokichi National Institute Of Polar Research Research Organization Of Information And Systems
Watanabe Okitsugu National Institute Of Polar Research Research Organization Of Information And Systems
Kameda Takao Institute Of Low Temperature Science Hokkaido University
Kawamura Toshiyuki Department Of Applied Physics Faculty Of Engineering Hokkaido University:(present Address)institute
Igarashi Makoto National Institute Of Polar Research
Motoyama Hideaki National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa-shi Tokyo 190-8518 Jpn
Kameda T Department Of Civil Engineering Kitami Institute Of Technology
Igarashi Makoto National Inst. Of Polar Res. 10-3 Midori-cho Tachikawa-shi Tokyo 190-8518 Jpn
Igarashi M National Institute Of Polar Research

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