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A COMPARISION OF THE ECM SIGNAL AND CHEMICAL CONSTITUENTS IN THE G15 CORE, EAST ANTARCTICA
https://doi.org/10.15094/00003995
https://doi.org/10.15094/00003995b38dac83-7602-4659-ae3f-6bad57b32759
名前 / ファイル | ライセンス | アクション |
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KJ00001014958 (78.1 kB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1997-11-01 | |||||
タイトル | ||||||
タイトル | A COMPARISION OF THE ECM SIGNAL AND CHEMICAL CONSTITUENTS IN THE G15 CORE, EAST ANTARCTICA | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
ID登録 | ||||||
ID登録 | 10.15094/00003995 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
記事種別(英) | ||||||
en | ||||||
ABSTRACT | ||||||
論文名よみ | ||||||
その他のタイトル | A COMPARISION OF THE ECM SIGNAL AND CHEMICAL CONSTITUENTS IN THE G15 CORE, EAST ANTARCTICA | |||||
著者名よみ |
ナリタ, ヒデキ
× ナリタ, ヒデキ× オサダ, カズオ× キド, ミズカ× ワタナベ, オキツグ |
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著者名(英) |
NARITA, Hideki
× NARITA, Hideki× OSADA, Kazuo× KIDO, Mizuka× WATANABE, Okitsugu |
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著者所属(英) | ||||||
en | ||||||
Institute of Low Temperature Science, Hokkaido University | ||||||
著者所属(英) | ||||||
en | ||||||
Solar-Terrestrial Environment Laboratory, Nagoya University | ||||||
著者所属(英) | ||||||
en | ||||||
Solar-Terrestrial Environment Laboratory, Nagoya University | ||||||
著者所属(英) | ||||||
en | ||||||
National Institute of Polar Research | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Dating of polar ice cores is important and fundamental analyses are needed to compare the core data at different places and also to reconstruct the last climate and environmental condition from ice core analysis data. The G15 core was dated roughly by use of volcanic events which were obtained by the DEP method (MOORE et al. : J Geophys. Res., 96,1991). Also, some authors reported the possibility that fluctuation of the ECM-signal is reflected in the seasonal variation. If this result is correct, variation of annual accumulation will be obtained from the determination of annual layer thickness. For detailed examination, the ECM-signal and concentration of chemical constituents were compared. Measured chemical constituents were SO_4^<2->, NO_3^-, Cl^-, Mg^<2+> and Na^+ which were measured by ion-chromatography. The difference between the measured total amounts of anion and cations is nearly equivalent to the amount of H^+-concentration at present in Antarctic snow and ice. Variation of the amount was same to the fluctuation of ECM-signal of depth from 56m to 58m. Compared to changes of other ions and NO_3^--concentration, it is thought that nssSO_4^<2-> brought on the H^+-variation. NssSO_4^<2-> and NO_3^- in drifting snow particles are concentrated in summer with little in winter on Mizuho plateau, East Antarctica. The reason that NO_3^- did not contribute to the H^+-variation is attribute to be diffusion of the volatile HNO_3 in continuation process after snow deposition. This agree with the result which was obtained at Byrd Station, East Antarctica. On the other hand, change of concentration of Na^+ and Cl^- from sea origin in drifting snow particles show a seasonal variation that it is low in period of spring and autumn. Considering to index of summer the nssSO_4^<2-> concentration, its increase seem to be able to show summer season. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10756213 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology 巻 11, p. 250, 発行日 1997-11 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |