2009 Fiscal Year Final Research Report
Signal detection of short cycle variations of dust in an polar ice core and paleoenvironment reconstruction
Project/Area Number |
20710012
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Environmental dynamic analysis
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Research Institution | National Institute of Polar Research |
Principal Investigator |
MIYAKE Takayuki National Institute of Polar Research, 研究教育系, 特任研究員 (90390715)
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Project Period (FY) |
2008 – 2009
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Keywords | 気候変動 / 氷床コア / 古環境復元 / ダスト / 高時間分解 |
Research Abstract |
I conducted high time-resolution analysis of microparticles (dust) in the Dome Fuji ice core, Antarctica in order to study for possible paleoenvironmental indications of seasonal and/or a few year climatic variations. Dust concentration variations were able to be found out within a few years scale in the core. I also found a cycle corresponding to annual layer thickness in the Holocene ice core from spectral analysis of dust concentrations. Both of mean values and relative variations of non-seasalt Ca^<2+> to dust ratios had a good correlation with δ^<18>O of ice, which were a good indicator of air temperature on polar ice cores, respectively. It was suggested that mineral composition of dust varied from climatic stages because this probably derived from the homogeneity of surface deposited materials in Patagonia which was reported as dust source area of inland Antarctica in glacial periods. It was also suggested that dust in the core originated from non-Patagonia area as a potential source during warm climatic periods.
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[Presentation] Constituent elements of soluble particles of the Dome Fuji surface snow and ice core2009
Author(s)
Iizuka, Y., A. Tsuchimoto, T. Sakurai, M. Hirabayashi, T. Suzuki, T. Miyake, R. Uemura, S. Fujita, H. Motoyama, Y. Fujii, T. Hondoh
Organizer
The 2nd International Symposium on the Dome Fuji Ice Core and Related Topics
Place of Presentation
国立極地研究所(東京都立川市)
Year and Date
20091100
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[Presentation] Dust record fro m the Dome Fuji ice core, Antarctica over the past 720-kyrs2009
Author(s)
Miyake, T., Y. Fujii, M. Hirabayashi, R. Uemura, T. Kuramoto, K. Goto-Azu ma, H. Motoyama, K. Fujita, S. Horik awa, Y. Iizuka, M. Igarashi, M. Kohno, K. Suzuki, T. Suzuki
Organizer
The 2nd Inter national Symposium on the Dome Fuji Ice Core and Related Topics
Place of Presentation
国立極地研究所(東京都立川市)
Year and Date
20091100
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[Presentation] Variability of sea-salt, mineral dust and non-sea-salt sulfate aerosols at Dome Fuji, East Antarctica during the past seven glacial cycles2009
Author(s)
Goto-Azuma, K., M. Hirabayash, T. Miyake, T. Kuramoto, H. Motoyama, M. Igarashi, R. Uemura, Y. Fujii, Y. Iizuka, M. Kohno, K. Suzuki, T. Suzuki, K. Fujita, S. Horikawa
Organizer
The 2nd International Symposium on the Dome Fuji Ice Core and Related Topics
Place of Presentation
国立極地研究所(東京都立川市)
Year and Date
20091100
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[Presentation] Deuterium-excess record from the Dome Fuji ice core over the past 720, 000 years2009
Author(s)
Uemura, R., H. Motoyama, V. Masson-Delmotte, J. Jouzel, T. Miyake, M. Hirabayashi, T. Kuramoto, M. Kohno, K. Goto-Azuma, Y. Fujii, K. Fujita, S. Horikawa, M. Igarashi, Y. Iizuka, K. Suzuki, T. Suzuki
Organizer
The 2nd International Symposium on the Dome Fuji Ice Core and Related Topics
Place of Presentation
国立極地研究所(東京都立川市)
Year and Date
20091100
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[Presentation] Constituent elements of soluble particles of the Dome Fuji surface snow and ice core2009
Author(s)
Iizuka, Y., A. Tsuchimoto, T. Sakurai, M. Hirabayashi, T. Suzuki, T. Miyake, R. Uemura, S. Fujita, H. Motoyama, Y. Fujii, T. Hondoh
Organizer
ILTS International Symposium "Frontier of Low Temperature Science"
Place of Presentation
北海道大学(札幌市)
Year and Date
20091100
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[Presentation] Environmental changes during the past seven glacial cycles reconstructed from Dome Fuji, East Antarctica2009
Author(s)
Goto-Azuma, K., M. Hirabayashi, T. Miyake, R. Uemura, T. Kuramoto, H. Motoyama, M. Igarashi, Y. Iizuka, K. Suzuki, T. Suzuki, K. Fujita, S. Horikawa, M. Kohno, Y. Fujii, K. Kawamura, S. Aoki, T. Nakazawa
Organizer
MOCA-09: IAMAS-IAPSO-IACS 2009 Joint Assembly
Place of Presentation
カナダ・モントリオール
Year and Date
20090700
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[Presentation] 南極ドームふじ氷床コアにおける過去72万年のダストフラックス変動2009
Author(s)
三宅隆之, 藤井理行, 平林幹啓, 植村立, 倉元隆之, 東久美子, 本山秀明, 五十嵐誠, 飯塚芳徳, 河野美香, 鈴木啓助, 鈴木利孝, 藤田耕史, 堀川信一郎
Organizer
日本地球惑星科学連合2009年大会
Place of Presentation
幕張メッセ国際会議場(千葉市)
Year and Date
20090500
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[Presentation] A 720-kyear record of dust variability from the Dome Fuji ice core, Antarctica2008
Author(s)
Miyake, T., Y. Fujii, M. Hirabayashi, R. Uemura, T. Kuramoto, K. Goto-Azuma, H. Motoyama, Y. Iizuka, M. Igarashi, M. Kohno, K. Suzuki, T. Suzuki, K. Fujita, S. Horikawa
Organizer
American Geophysical Union 2008 Fall Meeting
Place of Presentation
アメリカ・サンフランシスコ
Year and Date
20081200
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[Presentation] ドームふじにおける過去72万年間のオービタル・スケール及び千年スケールのエアロゾル変動2008
Author(s)
東久美子, 平林幹啓, 三宅隆之, 植村立, 倉元隆之, 本山秀明, 五十嵐誠, 飯塚芳徳, 鈴木啓助, 鈴木利孝, 藤田耕史, 堀川信一郎, 河野美香, 藤井理行
Organizer
31回極域気水圏・生物圏合同シンポジウム
Place of Presentation
国立極地研究所(東京都板橋区)
Year and Date
20081200
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[Presentation] 南極ドームふじにおける過去72万年のダスト変動2008
Author(s)
三宅隆之, 藤井理行, 平林幹啓, 植村立, 倉元隆之, 東久美子, 本山秀明, 五十嵐誠, 飯塚芳徳河野美香, 鈴木啓助, 鈴木利孝, 藤田耕史, 堀川信一郎
Organizer
第31回極域気水圏・生物圏合同シンポジウム
Place of Presentation
国立極地研究所(東京都板橋区)
Year and Date
20081200
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[Presentation] A 720, 000 years deuterium-excess record from the Dome Fuji ice core, Antarctica2008
Author(s)
Uemura, R., H. Motoyama, T. Miyake, M. Hirabayashi, T. Kuramoto, K. Goto-Azuma, V. Masson-Delmotte, J. Jouzel, Y. Fujii, K. Fujita, S. Horikawa, M. Igarashi, Y. Iizuka, M. Kohno, K. Suzuki, T. Suzuki
Organizer
Quaternary Climate: from Pole to Pole EPICA Open Science Conference
Place of Presentation
イタリア・ヴェネチア
Year and Date
20081100
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[Presentation] Orbital and millennial-scale variability of sea-salt, dust and non-sea-salt sulfate aerosols during the past 720, 000 years2008
Author(s)
Goto-Azuma, K., M. Hirabayashi, T. Miyake, R. Uemura, T. Kuramoto, H. Motoyama, M. Igarashi, Y. Iizuka, K. Suzuki, T. Suzuki, K. Fujita, S. Horikawa, M. Kohno, Y. Fujii, K. Kawamura, S. Aoki, T. Nakazawa
Organizer
Quaternary Climate: from Pole to Pole EPICA Open Science Conference
Place of Presentation
イタリア・ヴェネチア
Year and Date
20081100
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