Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/NCLIMATE3353 |
Arctic sea-ice decline weakens the Atlantic Meridional Overturning Circulation | |
Sevellec, Florian1; Fedorov, Alexey V.2; Liu, Wei2 | |
2017-08-01 | |
发表期刊 | NATURE CLIMATE CHANGE |
ISSN | 1758-678X |
EISSN | 1758-6798 |
出版年 | 2017 |
卷号 | 7期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA |
英文摘要 | The ongoing decline of Arctic sea ice exposes the ocean to anomalous surface heat and freshwater fluxes, resulting in positive buoyancy anomalies that can affect ocean circulation. In this study, we use an optimal flux perturbation framework and comprehensive climate model simulations to estimate the sensitivity of the Atlantic Meridional Overturning Circulation (AMOC) to such buoyancy forcing over the Arctic and globally, and more generally to sea-ice decline. It is found that on decadal timescales, flux anomalies over the subpolar North Atlantic have the largest impact on the AMOC, while on multidecadal timescales (longer than 20 years), flux anomalies in the Arctic become more important. These positive buoyancy anomalies spread to the North Atlantic, weakening the AMOC and its poleward heat transport. Therefore, the Arctic sea-ice decline may explain the suggested slow-down of the AMOC and the 'Warming Hole' persisting in the subpolar North Atlantic. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000406742500022 |
WOS关键词 | NORTH-ATLANTIC ; OCEAN ; MODEL ; ASSIMILATION ; SYSTEM |
WOS类目 | Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/34502 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Southampton, Ocean & Earth Sci, Southampton SO14 3ZH, Hants, England; 2.Yale Univ, Dept Geol & Geophys, POB 6666, New Haven, CT 06511 USA |
推荐引用方式 GB/T 7714 | Sevellec, Florian,Fedorov, Alexey V.,Liu, Wei. Arctic sea-ice decline weakens the Atlantic Meridional Overturning Circulation[J]. NATURE CLIMATE CHANGE,2017,7(8). |
APA | Sevellec, Florian,Fedorov, Alexey V.,&Liu, Wei.(2017).Arctic sea-ice decline weakens the Atlantic Meridional Overturning Circulation.NATURE CLIMATE CHANGE,7(8). |
MLA | Sevellec, Florian,et al."Arctic sea-ice decline weakens the Atlantic Meridional Overturning Circulation".NATURE CLIMATE CHANGE 7.8(2017). |
条目包含的文件 | 条目无相关文件。 |
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