Extremely poleward shift of Antarctic Circumpolar Current by eccentricity during the Last Interglacial
文献类型：期刊论文
| 作者 | Lu, Lijuan18,19,20,21,22; Zheng, Xufeng21; Weber, Michael E.2; Peck, Victoria23; Reilly, Brendan T.17; Chen, Zhong16,22; Yan, Wen16,22; Chen, Tianyu15; Yan, Hong14; Gong, Xun12,13 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2025-10-06 |
| 卷号 | 16期号:1页码:12 |
| DOI | 10.1038/s41467-025-63933-x |
| 通讯作者 | Zheng, Xufeng(xufengzheng@hainanu.edu.cn) ; Kao, Shuh-Ji(sjkao@hainanu.edu.cn) |
| 英文摘要 | The Antarctic Circumpolar Current (ACC) exerts substantial control on the physical, chemical, and biological properties of the Southern Ocean, playing a key role in modulating the global carbon cycle and climate. However, the orbital-scale forcing and future changes in the strength and position of the ACC remain elusive. Here, we reconstruct the history of ACC extending back to the Last Interglacial (LIG; 128-113 ka) using sediment cores from the Scotia Sea. Based on high-resolution measurements of sortable silt mean grain size, we find that bottom current speed is synchronized with eccentricity, superimposed by precession. During the LIG when both eccentricity and precession reached their maxima, current speed peaked in the region south of the Southern ACC front, suggesting that the Polar Front shifted similar to 5 degrees southward. We propose that the low-frequency ACC frontal migration is primarily controlled by eccentricity-driven shifts in the Southern Hemisphere Westerlies, while precession-driven shifts contribute to high-frequency migration. Our findings imply under future orbital-scale scenarios, the ACC position is likely to shift north. |
| WOS关键词 | SOUTHERN-OCEAN SURFACE ; ATMOSPHERIC CO2 ; ICE-SHEET ; POLAR FRONT ; SCOTIA SEA ; TEMPERATURE-CHANGES ; GLACIAL MAXIMUM ; LATE QUATERNARY ; HIGH-LATITUDES ; SORTABLE SILT |
| 资助项目 | National Natural Science Foundation of China (National Science Foundation of China)[42276061] ; National Natural Science Foundation of China (National Science Foundation of China)[91958106] ; National Natural Science Foundation of China (National Science Foundation of China)[42476068] ; National Natural Science Foundation of China[ZDYF2022SHFZ091] ; Hainan Province's Key Research and Development Project[XTCX2022HYB08] ; Collaborative Innovation Centre Project of Hainan University[2023M733997] ; China Postdoctoral Science Foundation[MRUKF2023008] ; State Key Laboratory of Marine Resource Utilization in South China Sea (Hainan University)[2024B1212070012] ; Science and Technology Program of Guangdong ; Ocean Negative Carbon Emissions (ONCE) Program[527] ; Ocean Negative Carbon Emissions (ONCE) Program[We2039/17-1] ; Ocean Negative Carbon Emissions (ONCE) Program[We2039/19-1] ; Deutsche Forschungsgemeinschaft (DFG-Priority Programme)[792773] ; European Union[NEB1782] ; Natural Environment Research Council (NERC) UK-IODP program[2025ZDGZ01] ; Major Scientific Research Project for the Construction of State Key Laboratory at Qilu University of Technology (Shandong Academy of Sciences)[97 (GG009393)] ; National Science Foundation (NSF)[WU 1062 1-1] ; Deutsche Forschungsgemeinschaft[E5710403] ; Chinese Academy of Sciences-Pioneer Hundred Talents Program ; Marie Curie Actions (MSCA)[792773] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001589217000038 |
| 出版者 | NATURE PORTFOLIO |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203698]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Zheng, Xufeng; Kao, Shuh-Ji |
| 作者单位 | 1.Univ Maryland, Dept Astron, College Pk, MD USA 2.Univ Bonn, Inst Geosci, Dept Geochem & Petrol, Bonn, Germany 3.Geol Survey Denmark & Greenland GEUS, Near Surface Land & Marine Geol, Aarhus Univ City 81, Aarhus, Denmark 4.Spanish Res Council CSIC, Spanish Inst Oceanog IEO, Cadiz Oceanog Ctr, Cadiz, Spain 5.Chinese Acad Sci, State Key Lab Cryospher Sci, Lanzhou, Peoples R China 6.NASA Goddard Space Flight Ctr, Planetary Magnetospheres Lab, Greenbelt, MD USA 7.Texas A&M Univ, Int Ocean Discovery Program, College Stn, TX USA 8.Montclair State Univ, Earth & Environm Studies, Montclair, NJ USA 9.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China 10.Chinese Acad Sci, Inst Deep Sea Sci & Engn, State Key Lab Deep Sea Sci & Intelligence Technol, Sanya, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Lijuan,Zheng, Xufeng,Weber, Michael E.,et al. Extremely poleward shift of Antarctic Circumpolar Current by eccentricity during the Last Interglacial[J]. NATURE COMMUNICATIONS,2025,16(1):12. |
| APA | Lu, Lijuan.,Zheng, Xufeng.,Weber, Michael E..,Peck, Victoria.,Reilly, Brendan T..,...&Kao, Shuh-Ji.(2025).Extremely poleward shift of Antarctic Circumpolar Current by eccentricity during the Last Interglacial.NATURE COMMUNICATIONS,16(1),12. |
| MLA | Lu, Lijuan,et al."Extremely poleward shift of Antarctic Circumpolar Current by eccentricity during the Last Interglacial".NATURE COMMUNICATIONS 16.1(2025):12. |
入库方式： OAI收割
来源：海洋研究所
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