Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/nature21055 |
Abyssal ocean overturning shaped by seafloor distribution | |
de lavergne, C.1,2; Madec, G.2; Roquet, F.3; Holmes, R. M.1,4,5; McDougall, T. J.1 | |
2017-11-09 | |
发表期刊 | NATURE |
ISSN | 0028-0836 |
EISSN | 1476-4687 |
出版年 | 2017 |
卷号 | 551期号:7679页码:181-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; France; Sweden |
英文摘要 | The abyssal ocean is broadly characterized by northward flow of the densest waters and southward flow of less-dense waters above them. Understanding what controls the strength and structure of these interhemispheric flows-referred to as the abyssal overturning circulation-is key to quantifying the ocean's ability to store carbon and heat on timescales exceeding a century. Here we show that, north of 32 degrees S, the depth distribution of the seafloor compels dense southernorigin waters to flow northward below a depth of about 4 kilometres and to return southward predominantly at depths greater than 2.5 kilometres. Unless ventilated from the north, the overlying mid-depths (1 to 2.5 kilometres deep) host comparatively weak mean meridional flow. Backed by analysis of historical radiocarbon measurements, the findings imply that the geometry of the Pacific, Indian and Atlantic basins places a major external constraint on the overturning structure. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414734200038 |
WOS关键词 | LARGE-SCALE CIRCULATION ; ANTARCTIC BOTTOM WATER ; SOUTH-PACIFIC OCEAN ; MID-ATLANTIC RIDGE ; GLOBAL OCEAN ; DEEP-WATER ; NORTH PACIFIC ; INDIAN-OCEAN ; WORLD OCEAN ; TURBULENT DISSIPATION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/202698 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ New South Wales, Sch Math & Stat, Sydney, NSW 2052, Australia; 2.Univ Pierre & Marie Curie Paris 6, CNRS, IRD, MNHN,Sorbonne Univ,LOCEAN Lab, F-75005 Paris, France; 3.Stockholm Univ, Dept Meteorol MISU, S-11418 Stockholm, Sweden; 4.Univ New South Wales, Climate Change Res Ctr, Sydney, NSW 2052, Australia; 5.Univ New South Wales, ARC Ctr Excellence Climate Syst Sci, Sydney, NSW 2052, Australia |
推荐引用方式 GB/T 7714 | de lavergne, C.,Madec, G.,Roquet, F.,et al. Abyssal ocean overturning shaped by seafloor distribution[J]. NATURE,2017,551(7679):181-+. |
APA | de lavergne, C.,Madec, G.,Roquet, F.,Holmes, R. M.,&McDougall, T. J..(2017).Abyssal ocean overturning shaped by seafloor distribution.NATURE,551(7679),181-+. |
MLA | de lavergne, C.,et al."Abyssal ocean overturning shaped by seafloor distribution".NATURE 551.7679(2017):181-+. |
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