Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41558-018-0263-1 |
Rapid coastal deoxygenation due to ocean circulation shift in the northwest Atlantic | |
Claret, Mariona1,2,3; Galbraith, Eric D.3,4,5; Palter, Jaime B.6; Bianchi, Daniele7; Fennel, Katja8; Gilbert, Denis9; Dunne, John P.10 | |
2018-10-01 | |
发表期刊 | NATURE CLIMATE CHANGE |
ISSN | 1758-678X |
EISSN | 1758-6798 |
出版年 | 2018 |
卷号 | 8期号:10页码:868-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada; Spain |
英文摘要 | Global observations show that the ocean lost approximately 2% of its oxygen inventory over the past five decades(1-3), with important implications for marine ecosystems(4,5). The rate of change varies regionally, with northwest Atlantic coastal waters showing a long-term drop(6,7) that vastly outpaces the global and North Atlantic basin mean deoxygenation rates(5,8). However, past work has been unable to differentiate the role of large-scale climate forcing from that of local processes. Here, we use hydrographic evidence to show that a Labrador Current retreat is playing a key role in the deoxygenation on the northwest Atlantic shelf. A high-resolution global coupled climate-biogeochemistry model(9) reproduces the observed decline of saturation oxygen concentrations in the region, driven by a retreat of the equatorward-flowing Labrador Current and an associated shift towards more oxygen-poor subtropical waters on the shelf. The dynamical changes underlying the shift in shelf water properties are correlated with a slowdown in the simulated Atlantic Meridional Overturning Circulation (AMOC)(10). Our results provide strong evidence that a major, centennial-scale change of the Labrador Current is underway, and highlight the potential for ocean dynamics to impact coastal deoxygenation over the coming century. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000445927700016 |
WOS关键词 | MERIDIONAL OVERTURNING CIRCULATION ; SLOPE WATER REGION ; INTERANNUAL VARIABILITY ; DECLINING OXYGEN ; SCOTIAN SHELF ; GULF-STREAM ; TEMPERATURE ; MODELS ; TRENDS |
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/33468 |
专题 | 资源环境科学 |
作者单位 | 1.Joint Inst Study Atmosphere & Ocean, Seattle, WA 98105 USA; 2.Univ Washington, Seattle, WA 98195 USA; 3.McGill Univ, Dept Earth & Planetary Sci, Montreal, PQ, Canada; 4.ICREA, Barcelona, Spain; 5.Univ Autonoma Barcelona, Inst Ciencia & Tecnol Ambientals, Cerdanyola Del Valles, Spain; 6.Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA; 7.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA; 8.Dalhousie Univ, Dept Oceanog, Halifax, NS, Canada; 9.Fisheries & Oceans Canada, Maurice Lamontagne Inst, Mont Joli, PQ, Canada; 10.NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA |
推荐引用方式 GB/T 7714 | Claret, Mariona,Galbraith, Eric D.,Palter, Jaime B.,et al. Rapid coastal deoxygenation due to ocean circulation shift in the northwest Atlantic[J]. NATURE CLIMATE CHANGE,2018,8(10):868-+. |
APA | Claret, Mariona.,Galbraith, Eric D..,Palter, Jaime B..,Bianchi, Daniele.,Fennel, Katja.,...&Dunne, John P..(2018).Rapid coastal deoxygenation due to ocean circulation shift in the northwest Atlantic.NATURE CLIMATE CHANGE,8(10),868-+. |
MLA | Claret, Mariona,et al."Rapid coastal deoxygenation due to ocean circulation shift in the northwest Atlantic".NATURE CLIMATE CHANGE 8.10(2018):868-+. |
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