| Project/Area Number |
18310015
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | National Institute of Polar Research |
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Principal Investigator |
AZUMA Kumiko National Institute of Polar Research, 研究教育系, 准教授 (80202620)
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| Co-Investigator(Kenkyū-buntansha) |
MOTOYAMA Hideaki 国立極地研究所, 研究教育系, 教授 (20210099)
SEGAWA Takahiro 情報・システム研究機構, 新領域融合研究センター, 特任研究員 (90425835)
MIYAKE Takayuki 国立極地研究所, 研究教育系, 特任研究員 (90390715)
IGARASHI Makoto 独立行政法人理化学研究所, 牧島宇宙放射線研究室, 協力研究員 (50435624)
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| Project Period (FY) |
2006 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥18,280,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥2,880,000)
Fiscal Year 2009: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2008: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2007: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2006: ¥5,800,000 (Direct Cost: ¥5,800,000)
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| Keywords | 雪氷コア / 北極 / マウントローガン / スバールバル / 標高依存性 |
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| Research Abstract |
We have reconstructed past climatic and environmental changes using an ice core drilled on King Col, Mt. Logan, Yukon, Canada. Climate of this site is strongly influenced by Pacific Decadal Oscillation. Sulfate and nitrate increased significantly since 1940s due to anthropogenic input of the atmospheric pollutants. This is in contrast with a higher elevation site on the same mountain, which does not show the anthropogenic increases of these species. This result confirms altitudinal dependence of environmental changes.
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