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DOI | 10.1007/s00382-018-4570-z |
Explaining asymmetry between weakening and recovery of the AMOC in a coupled climate model | |
Haskins R.K.; Oliver K.I.C.; Jackson L.C.; Drijfhout S.S.; Wood R.A. | |
发表日期 | 2019 |
ISSN | 0930-7575 |
起始页码 | 67 |
结束页码 | 79 |
卷号 | 53期号:2020-01-02 |
英文摘要 | The Atlantic meridional overturning circulation (AMOC) is projected to weaken in the coming century due to anthropogenic climate change. Various studies have considered AMOC weakening and collapse, with less research focusing on the processes and timescales of the recovery phase. This study uses a coupled climate model to explore the roles of salinity and temperature in AMOC recovery after a weakening. The North Atlantic and Arctic region was hosed with freshwater for 200 years. The mean Atlantic salinity increased strongly during recovery, and remained elevated for ~ 600 years post hosing. The behaviour of the AMOC was well reconstructed by applying “rotated geostrophy” to meridional density gradient profiles between 50°N and 30°S. This makes it possible to determine the role of overturning, gyre, and surface fluxes in the North and South Atlantic. Changes at 50°N dominate the weakening and early recovery. The magnitude of the overshoot to high AMOC transports in the recovery phase was related to density changes in the South Atlantic. © 2018, The Author(s). |
英文关键词 | AMOC; Density; FAMOUS; Hosing; Model; Thermohaline circulation |
语种 | 英语 |
scopus关键词 | asymmetry; climate modeling; geostrophic flow; meridional circulation; overturn; salinity; thermohaline circulation; water temperature; Arctic Ocean; Atlantic Ocean; Atlantic Ocean (North); Atlantic Ocean (South) |
来源期刊 | Climate Dynamics |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/146216 |
作者单位 | University of Southampton, Southampton, United Kingdom; Met Office Hadley Centre, Exeter, United Kingdom |
推荐引用方式 GB/T 7714 | Haskins R.K.,Oliver K.I.C.,Jackson L.C.,et al. Explaining asymmetry between weakening and recovery of the AMOC in a coupled climate model[J],2019,53(2020-01-02). |
APA | Haskins R.K.,Oliver K.I.C.,Jackson L.C.,Drijfhout S.S.,&Wood R.A..(2019).Explaining asymmetry between weakening and recovery of the AMOC in a coupled climate model.Climate Dynamics,53(2020-01-02). |
MLA | Haskins R.K.,et al."Explaining asymmetry between weakening and recovery of the AMOC in a coupled climate model".Climate Dynamics 53.2020-01-02(2019). |
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