Glacial-interglacial changes in climate and environment studied by multi-parameter analyses of ice-core dust
Project/Area Number |
15H01731
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Environmental dynamic analysis
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Research Institution | National Institute of Polar Research |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
本山 秀明 国立極地研究所, 研究教育系, 教授 (20210099)
平林 幹啓 国立極地研究所, 研究教育系, 特任助手 (20399356)
永塚 尚子 国立極地研究所, 研究教育系, 研究員 (30733208)
櫻井 俊光 国立極地研究所, 研究教育系, 研究員 (00581810)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥46,150,000 (Direct Cost: ¥35,500,000、Indirect Cost: ¥10,650,000)
Fiscal Year 2017: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2016: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Fiscal Year 2015: ¥20,800,000 (Direct Cost: ¥16,000,000、Indirect Cost: ¥4,800,000)
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Keywords | 南極氷床コア / ダスト / マルチパラメータ / 氷期・間氷期 / 気候・環境変動 / 南極 / ドームふじ / 氷床コア / ダストマルチパラメータ分析 / 気候・環境変動 |
Outline of Final Research Achievements |
We have developed cutting-edge techniques to perform multi-parameter analyses of mineral dust deposited onto the Antarctic ice sheet. Using these methods, we have analyzed mineral dust in Dome Fuji deep ice core. High resolution and accurate analyses using our CFA (Continuous Flow Analysis) system show that dust flux and CO2 concentration were highly correlated throughout the last deglacial period. Detailed analyses of the ion data suggest that continental gypsum might be an important source of non-sea-salt sulfate during cold glacial periods. We have found that dust originates from different sources during Holocene and that different elements show different ratios of particulate and soluble fractions of dust.
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Academic Significance and Societal Importance of the Research Achievements |
ダストは放射強制力に影響を及ぼすとともに、氷床・氷河や海氷上に堆積して雪氷面のアルベドを低下させ、融解を促進するため、気候・環境変動や海面変動と深い関わりを持っている。また、CO2濃度の変動とも深い関わりを持っていると考えられ、本研究で得られたダストの特性、動態、時間変動、CO2変動との関係に関する知見は、CO2の変動や気候変動のメカニズムの解明や将来予測の高精度化に大きく貢献することが期待される。
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Report
(4 results)
Research Products
(87 results)
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[Journal Article] Asynchrony between Antarctic temperature and CO2 associated with obliquity over the past 720,000 years2018
Author(s)
Uemura, R., H. Motoyama, V. Masson-Delmotte, J. Jouzel, K. Kawamura, K. Goto-Azuma, S. Fujita, T. Kuramoto, M. Hirabayashi, T. Miyake, H. Ohno, K. Fujita, A. Abe-Ouchi, Y. Iizuka, S. Horikawa, M. Igarashi, K. Suzuki, T. Suzuki, Y. Fujii
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Journal Title
Nature Communications
Volume: 9
Issue: 1
Pages: 1-11
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Overview of the chemical composition and characteristics of Na<sup>+</sup> and Cl<sup>–</sup> distributions in shallow samples from Antarctic ice core DF01 (Dome Fuji) drilled in 20012017
Author(s)
Motizuki, Y., Motoyama, H., Nakai, Y., Suzuki, K., Iizuka, Y. and Takahashi, K.
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Journal Title
GEOCHEMICAL JOURNAL
Volume: 51
Issue: 3
Pages: 293-298
DOI
NAID
ISSN
0016-7002, 1880-5973
Related Report
Peer Reviewed / Open Access
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[Journal Article] On the occurrence of annual layers in Dome Fuji ice core early holocene ice2015
Author(s)
Svensson, A., Fujita, S., Bigler, M., Braun, M., Dallmayr, R., Gkinis, V., Goto-Azuma, K., Hirabayashi, M., Kawamura, K., Kipfstuhl, S., Kjaer, H. A., Popp, T., Simonsen, M., Steffensen, J. P., Vallelonga, P., and Vinther, B. M.
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Journal Title
Climate of the Past
Volume: 11
Issue: 9
Pages: 1127-1137
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] 南極アイスコア等による古環境復元~2017年度の活動~2018
Author(s)
川村賢二, 植村立, 本山秀明, 飯塚芳徳, 堀内一穂, 青木周司, 東久美子, 藤田秀二, 関 宰, 平林幹啓, 中澤文男, 大藪幾美, 大野浩, 津滝俊, 阿部彩子
Organizer
日本地球惑星科学連合2018年大会
Related Report
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[Presentation] 720,000-year records of Antarctic and oceanic temperatures related to solar forcing and CO22018
Author(s)
植村立, 本山秀明, Masson-Delmotte Valerie, Jouzel Jean, 川村賢二, 東久美子, 藤田秀二, 倉元隆之, 平林幹啓, 三宅隆之, 大野浩, 藤田耕史, 阿部彩子, 飯塚芳徳, 堀川信一郎, 五十嵐誠, 鈴木啓助, 鈴木利孝, 藤井理行
Organizer
日本地球惑星科学連合2018年大会
Related Report
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[Presentation] High-resolution measurements of methane concentration in the Dome Fuji ice core using Continuous Flow Analysis (CFA) system2017
Author(s)
Arai, M., K. Kawamura, K. Kitamura, K. Goto-Azuma, J. Ogata, R. Dallmayr, F. Nakazawa, M. Hirabayashi, T. Nakazawa, S. Aoki and T. Suzuki
Organizer
Japan Geoscience Union Meeting 2017
Related Report
Int'l Joint Research
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[Presentation] 過去21.6万年間の東南極における気候に依存した表面質量収支のコントラスト2017
Author(s)
藤田秀二, P. Frederic, 阿部彩子, 川村賢二, V. Masson-Delmotte, 本山秀明, 齋藤冬樹, M. Severi, B. Stenni, 植村立, E. W. Wolff
Organizer
JpGU-AGU Joint Meeting 2017
Related Report
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[Presentation] High resolution analyses of the Dome Fuji deep ice-core using a Continuous Flow Analysis (CFA) System2017
Author(s)
Goto-Azuma, K., M. Hirabayashi, J. Ogata, K. Kitamura, K. Kawamura, Y. Ogawa-Tsukagawa, R. Dallmayr, F. Nakazawa, K. Fukuda, M. Arai, S. Fujita and H. Motoyama
Organizer
Japan Geoscience Union Meeting 2017
Related Report
Int'l Joint Research
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[Presentation] Research prospects on variations and interactions of Antarctic ice sheet and climate2017
Author(s)
Kawamura, K., S. Sugiyama, R. Uemura, H. Motoyama, T. Sawagaki, I. Yoshinori, K. Horiuchi, S. Aoki, K. Goto-Azuma, S. Fujita, O. Seki, M. Hirabayashi and I. Oyabu
Organizer
Japan Geoscience Union Meeting 2017
Related Report
Int'l Joint Research
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[Presentation] 南極氷床と気候の変動及び相互作用に関する研究展望2017
Author(s)
川村賢二, 杉山慎, 植村立, 本山秀明, 澤柿教伸, 飯塚芳徳, 堀内一穂, 青木周司, 東久美子, 藤田秀二, 関宰, 平林幹啓, 大藪幾美
Organizer
日本地球惑星科学連合2017年大会
Related Report
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[Presentation] Analyses of the second Dome Fuji deep ice-core with an improved CFA (Continuous Flow Analysis) system2017
Author(s)
Goto-Azuma, K., M. Hirabayashi, J. Ogata, K. Kitamura, K. Kawamura, Y. Ogawa-Tsukagawa, F. Nakazawa, K. Fukuda, M. Arai, S. Fujita and H. Motoyama
Organizer
The Eighth Symposium on Polar Science
Related Report
Int'l Joint Research
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[Presentation] Present evaluation and future prediction of the global environment in the framework of glacial-interglacial cycle (AJ3)2016
Author(s)
Motoyama, H., K. Kawamura, H. Miura, Y. Suganuma, K. Goto-Azuma, S. Fujita, T. Furukawa, K. Matsuoka, H. Kaneda, T. Koyama, Y. Nogi, J. Okuno and S. Matoba
Organizer
The Seventh Symposium on Polar Science
Related Report
Int'l Joint Research
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[Presentation] Metamorphism of layered firn at Dome Fuji, Antarctica: Evolution of relations between Near-infrared reflectivity and the other textural/chemical properties2016
Author(s)
Fujita, S., K. Goto-Azuma, H. Enomoto, K. Fukui, M. Hirabayashi, A. Hori, Y. Hoshina, Y. Iizuka, Y. Motizuki, H. Motoyama, F. Nakazawa, S. Sugiyama, S. Surdyk and K. Takahashi
Organizer
The Seventh Symposium on Polar Science
Related Report
Int'l Joint Research
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[Presentation] Metamorphism of layered firn at Dome Fuji, Antarctica: Evolution of relations between Near-infrared reflectivity and the other textural/chemical properties2016
Author(s)
Fujita, S., K. Goto-Azuma, H. Enomoto, K. Fukui, M. Hirabayashi, A. Hori, Y. Hoshina, Y. Iizuka, Y. Motizuki, H. Motoyama, F. Nakazawa, S. Sugiyama, S. Surdyk and K. Takahashi
Organizer
SCAR 2016 Open Science Conference
Related Report
Int'l Joint Research
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[Presentation] 過去21万6千年間の東南極における、気候に依存した質量収支のコントラスト2016
Author(s)
藤田 秀二, Frederic Parrenin, 阿部 彩子, 川村 賢二, Masson-Delmotte Valerie, 本山 秀明, 齋藤 冬樹, Severi Mirko, Stenni Barbara, 植村 立, Wolff Eric
Organizer
日本地球惑星科学連合2016年大会
Related Report
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[Presentation] 南極ドームふじのでのフィルン層構造の変態: 近赤外光の反射率と他の結晶組織構造や化学特性との関係の発達2016
Author(s)
藤田秀二, 東久美子, 榎本浩之, 福井幸太郎, 平林幹啓, 堀彰, 保科優, 飯塚芳徳, 望月 優子, 本山秀明, 中澤文男, 杉山慎, Sylviane Surdyk, 高橋和也
Organizer
日本地球惑星科学連合2016年大会
Related Report
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[Presentation] High Resolution Continuous Flow Analysis System developed at the Ice Core Research Center, National Institute of Polar Research2015
Author(s)
R. Dallmayr, K. Goto-Azuma, K. Kawamura, M. Hirabayashi, V. Gkinis, K. Kitamura, Y. Ogawa, K. Hayashi, A. Tsushima, J. Ogata
Organizer
The Sixth Symposium on Polar Science
Place of Presentation
東京
Year and Date
2015-11-16
Related Report
Int'l Joint Research
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