Deepwater circulation variation in the South China Sea since the Last Glacial Maximum
| Type | Article | ||||||||||||||||
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| Date | 2016-08 | ||||||||||||||||
| Language | English | ||||||||||||||||
| Author(s) | Zheng Xufeng1, Kao Shuhji2, Chen Zhong1, Menviel Laurie3, Chen Han4, Du Yan5, Wan Shiming 6, Yan Hong7, Liu Zhonghui8, Zheng Liwei2, Wang Shuhong1, Li Dawei2, Zhang Xu9 |
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| Affiliation(s) | 1 : Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China. 2 : Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Peoples R China. 3 : Univ New South Wales, Climate Change Res Ctr, ARC Ctr Excellence Climate Syst Sci, Sydney, NSW, Australia. 4 : State Ocean Adm, Isl Res Ctr, Fuzhou, Peoples R China. 5 : Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China. 6 : Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China. 7 : Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China. 8 : Univ Hong Kong, Dept Earth Sci, Hong Kong, Hong Kong, Peoples R China. 9 : Helmholtz Zentrum Polar & Meeresforsch, Alfred Wegener Inst, Bremerhaven, Germany. |
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| Source | Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2016-08 , Vol. 43 , N. 16 , P. 8590-8599 | ||||||||||||||||
| DOI | 10.1002/2016GL070342 | ||||||||||||||||
| WOS© Times Cited | 32 | ||||||||||||||||
| Keyword(s) | South China Sea, deep current, anisotropy of magnetic susceptibility, Heinrich 1, Atlantic-Pacific seesaw | ||||||||||||||||
| Abstract | Deepwater circulation plays a central role in global climate. Compared with the Atlantic, the Pacific deepwater circulation's history remains unclear. The Luzon overflow, a branch of the North Pacific deep water, determines the ventilation rate of the South China Sea (SCS) basin. Sedimentary magnetic properties in the SCS reflect millennial-scale fluctuations in deep current intensity and orientation. The data suggest a slightly stronger current at the Last Glacial Maximum compared to the Holocene. But, the most striking increase in deep current occurred during Heinrich stadial 1 (H1) and to a lesser extent during the Younger Dryas (YD). Results of a transient deglacial experiment suggest that the northeastern current strengthening at the entrance of the SCS during H1 and the YD, times of weak North Atlantic Deep Water formation, could be linked to enhanced formation of North Pacific Deep Water. |
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