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DOI | 10.1126/science.abg1737 |
Insolation triggered abrupt weakening of Atlantic circulation at the end of interglacials | |
Yin Q.Z.; Wu Z.P.; Berger A.; Goosse H.; Hodell D. | |
发表日期 | 2021 |
ISSN | 0036-8075 |
起始页码 | 1035 |
结束页码 | 1040 |
卷号 | 373期号:6558 |
英文摘要 | Abrupt cooling is observed at the end of interglacials in many paleoclimate records, but the mechanism responsible remains unclear. Using model simulations, we demonstrate that there exists a threshold in the level of astronomically induced insolation below which abrupt changes at the end of interglacials of the past 800,000 years occur. When decreasing insolation reaches the critical value, it triggers a strong, abrupt weakening of the Atlantic meridional overturning circulation and a cooler mean climate state accompanied by high-amplitude variations lasting for several thousand years. The mechanism involves sea ice feedbacks in the Nordic and Labrador Seas. The ubiquity of this threshold suggests its fundamental role in terminating the warm climate conditions at the end of interglacials. © 2021 American Association for the Advancement of Science. All rights reserved. |
英文关键词 | circulation; cooling; insolation; interglacial; threshold; article; Atlantic meridional overturning circulation; critical value; interglacial; sea ice; simulation; sunlight; Atlantic Ocean; Canada; Labrador; Newfoundland and Labrador |
语种 | 英语 |
来源期刊 | Science |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/246104 |
作者单位 | Georges Lemaître Center for Earth and Climate Research, Earth and Life Institute, Université Catholique de Louvain, Louvain-la-Neuve, Belgium; Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Godwin Laboratory for Palaeoclimate Research, Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom |
推荐引用方式 GB/T 7714 | Yin Q.Z.,Wu Z.P.,Berger A.,et al. Insolation triggered abrupt weakening of Atlantic circulation at the end of interglacials[J],2021,373(6558). |
APA | Yin Q.Z.,Wu Z.P.,Berger A.,Goosse H.,&Hodell D..(2021).Insolation triggered abrupt weakening of Atlantic circulation at the end of interglacials.Science,373(6558). |
MLA | Yin Q.Z.,et al."Insolation triggered abrupt weakening of Atlantic circulation at the end of interglacials".Science 373.6558(2021). |
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