Reconstruction of the hydrological variability in the southern Siberia
| Project/Area Number |
26740002
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Nagoya University (2015-2017)
Tohoku University (2014) |
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Principal Investigator |
Fumiko Nara 名古屋大学, 宇宙地球環境研究所, 研究機関研究員 (70414381)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 気候変動復元 / 水文環境変動 / 気候変動周期 / 南シベリア地域 / 太陽活動影響 / 最終氷期 / 降水量変動復元 / 太陽活動 / 湖底堆積物 / 気候周期復元 / 水循環 / 大陸内部降水量復元 / 太陽活動サイクル / 1000年周期 / 最終氷期最盛期 |
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| Outline of Final Research Achievements |
Millennial-scale climate variability and its biological response during the early to the mid last glacial period is well documented from marine and continental records. Here we reconstruct hydrological variability (river input and the chemical weathering intensity) using two independent sedimentological and geochemical proxies at Lake Baikal in southern Siberia. We find that the millennial-scale hydrological variability during the late last glacial period (31-11.5 cal ka BP) is associated with solar activity changes, with wet (dry) climate conditions in the Siberian region corresponding to solar maxima (minima). Millennial-scale biological response to hydrological change resulting from solar activity during the last glacial period is also observed. Our results indicate that the solar-induced millennial-scale hydroclimate variability appears to control Eurasian biological change during the late last glacial period.
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Report
(5 results)
Research Products
(22 results)
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[Journal Article] Effects of soil erosion and anoxic–euxinic ocean in the Permian–Triassic marine crisis.2016
Author(s)
Kunio Kaiho, Ryosuke Saito, Kosuke Ito, Takashi Miyaji, Raman Biswas, Li Tian, Hiroyoshi Sano, Zhiqiang Shi, Satoshi Takahashi, Jinnan Tong, Lei Liang, Masahiro Oba, Fumiko W. Nara, Noriyoshi Tsuchiya, Zhong-Qiang Chen.
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Journal Title
Heliyon
Volume: 2
Issue: 8
Pages: e00137-e00137
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Bromine, Iodine and Uranium as the Proxies of Past Biological Activity in the Lacustrine2015
Author(s)
Nara, F., Watanabe,T., Kakegawa,T., Yamasaki,S-I., Tsuchiya,N., Nakamura,T.,Kawai,T.
Organizer
Goldschmidt 2015
Place of Presentation
Prague, Czech Republic
Year and Date
2015-08-16
Related Report
Int'l Joint Research
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[Presentation] Sodium-Titanium Ratios in Tsunami Deposits from the Sendai Plain, the Pacific Coast of Northeastern Japan2015
Author(s)
Watanabe, T., Hosoda, N., Tsuchiya, N., Yamasaki, S., Nara, F., Nakamura, T.
Organizer
Goldschmidt 2015
Place of Presentation
Prague, Czech Republic
Year and Date
2015-08-16
Related Report
Int'l Joint Research
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[Presentation] Rapid change of sedimentation rate from Lake Baikal sediment core corresponding with the global climate warming (MWP-19Ka)2015
Author(s)
Nara, F., Watanabe, T., Kakegawa, T., Nakamura, T., Kawai, T.
Organizer
XIX INQUA CONGRESS
Place of Presentation
Nagoya, Japan
Year and Date
2015-07-26
Related Report
Int'l Joint Research
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[Presentation] Geochemical study of a sediment core from Lake Pumoyum Co: Implications for past monsoon variability in south Tibetan Plateau2015
Author(s)
Watanabe, T., Nara, F., Matsunaka, T., Yamasaki, S., Tsuchiya, N., Minoura, K., Nakamura, T., Kakegawa, T., Zhu, L., Wang, J., Nishimura, M.
Organizer
XIX INQUA CONGRESS
Place of Presentation
Nagoya, Japan
Year and Date
2015-07-26
Related Report
Int'l Joint Research
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