Measurements of total gas content of an ice core from Mizuho Station, Antarctica
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概要
- 論文の詳細を見る
Total gas content of an ice core, 700 m long drilled at Mizuho Station, East Antarctica (Mizuho core), has been measured by two methods. One method is the so called “melting method”, in which entrapped gas in an ice sample was collected in a gas burette by melting the sample in liquid. The other method, the “dry extraction method”, was also employed to measure gas content for small samples; gas was introduced into an evacuated container by crushing a sample. It was found that the total gas content of the Mizuho core increased almost linearly with decrease of depth from 600 to 180 m below the surface. Above 180 m, however, total gas content was much larger than the lower part of the ice core. This probably indicates that the ice sheet thickness has decreased since the gas was incorporated into the ice matrix located at about 180 m depth.
- 国立極地研究所の論文
著者
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Mae Shinji
Department of Applied Physics, Hokkaido University
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Morimoto S
National Institute Of Polar Research Organization Of Information And Systems
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Kameda T
Kitami Inst. Technol. Hokkaido Jpn
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Kameda Takao
Department of Civil Engineering, Kitami Institute of Technology
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Morimoto S
National Inst. Polar Res. Tokyo Jpn
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Nagoshi Masayasu
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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Nakawo Masayoshi
Nagaoka Institute of Snow and Ice Studies, National Research Center for Disaster Prevention, Science
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NAKAWO Masayoshi
Research Institute for Humanity and Nature
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Mae S
National Institute Of Polar Research Research Organization Of Information And Systems
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Mae Shinji
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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Nakawo Masayoshi
Atmospheric And Hydrospheric Research Institute Nagoya University
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Nakawo Masayoshi
Nagaoka Institute Of Snow And Ice Studies National Research Center For Disaster Prevention Science A
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Nakawo M
Research Institute For Humanity And Nature
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Kameda Takao
Institute Of Low Temperature Science Hokkaido University
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Mae S
Hokkaido Univ. Sapporo
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Kameda Takao
Department Of Applied Physics Faculty Of Engineering Hokkaido University:(present Address)institute
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