| Northward Shift of the Northern Hemisphere Westerlies in the Early to Late Miocene and Its Links to Tibetan Uplift | |
Tang, Yi1,2,3 ; Wan, Shiming1,2,4; Clift, Peter D.5; Zhao, Debo1; Xu, Zhaokai1; Zhang, Jin1; Song, Zehua1; Jin, Hualong1,4; Li, Mengjun1; Shi, Xuefa3,6; Li, Anchun1
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| 2022-09-28 | |
| 发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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| ISSN | 0094-8276 |
| 卷号 | 49期号:18页码:10 |
| 通讯作者 | Wan, Shiming(wanshiming@ms.qdio.ac.cn) |
| 摘要 | Despite the importance of the westerlies to the global climate system, we still know little about their long-term evolution and possible orographic controls during the late Cenozoic because of the lack of sedimentary records with precise chronological control. Eolian deposition in the North Pacific preserved past information about the westerlies, the major wind system delivering Asian dust to the Pacific. A continuous, high-resolution eolian flux record since 23 Ma was reconstructed from sediments at Deep Sea Drilling Project Site 296 in the North Pacific. Combined with dust flux at Ocean Drilling Program Site 1208, variations in their difference indicated a northwards shift of the westerlies during 23-9 Ma and a relatively stable state since then. We suggest that Tibetan uplift since the early Miocene began to drive the poleward shift of the westerlies until 9 Ma, after which the westerlies remained relatively stable over Asia on million-year timescales. Plain Language Summary The Northern Hemisphere Westerly wind is a significant component of planetary-scale atmospheric circulation and has a large impact on regional and global climate change. Although numerous modern observations and orbital time-scale studies of the Westerly wind have been conducted, we still know little about its evolution on million-year time-scales, which may modulate the overall amplitude of short-term variations. Eolian deposition in the North Pacific has preserved precious information about the westerlies in the past. A continuous and high resolution eolian flux record dating from 23 Ma was reconstructed from sediments at Deep Sea Drilling Project Site 296 in the Northwest Pacific. Combined with dust records at Ocean Drilling Program Site 1208 to the east, we constrain how the path and strength of the Northern Hemisphere Westerlies have changed since the early Miocene. The two eolian records indicate a northwards shift of the westerlies between 23 and 9 Ma and a relatively stable state since then. We suggest that stepwise uplift of the Tibetan Plateau since at least the early Miocene began to drive the northwards shift of the Northern Hemisphere Westerlies until about 9 Ma, after which the westerlies remained relatively stable over Asia-North Pacific on million-year timescales. |
| DOI | 10.1029/2022GL099311 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China (NSFC)[42125602] ; Strategic Priority Research Program of CAS[XDB40010100] ; NSFC[42076052] ; Innovation Project of QNLM[2022QNLM050203] ; Innovation Project of QNLM[MGQNLM-KF202001] ; Taishan and Aoshan Talents Program[2017ASTCP-ES01] |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000859720400001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/180670 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Wan, Shiming |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China 5.Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA 6.Minist Nat Resources, Key Lab Marine Sedimentol & Environm Geol, Inst Oceanog 1, Qingdao, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 通讯作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Tang, Yi,Wan, Shiming,Clift, Peter D.,et al. Northward Shift of the Northern Hemisphere Westerlies in the Early to Late Miocene and Its Links to Tibetan Uplift[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(18):10. |
| APA | Tang, Yi.,Wan, Shiming.,Clift, Peter D..,Zhao, Debo.,Xu, Zhaokai.,...&Li, Anchun.(2022).Northward Shift of the Northern Hemisphere Westerlies in the Early to Late Miocene and Its Links to Tibetan Uplift.GEOPHYSICAL RESEARCH LETTERS,49(18),10. |
| MLA | Tang, Yi,et al."Northward Shift of the Northern Hemisphere Westerlies in the Early to Late Miocene and Its Links to Tibetan Uplift".GEOPHYSICAL RESEARCH LETTERS 49.18(2022):10. |
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| Northward Shift of t（4655KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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