globalchange  > 科学计划与规划
DOI: 10.1002/2015GL065999
论文题名:
North Atlantic ecosystem sensitivity to Holocene shifts in Meridional Overturning Circulation
作者: Douarin M.; Elliot M.; Noble S.R.; Moreton S.G.; Long D.; Sinclair D.; Henry L.-A.; Roberts J.M.
刊名: Geophysical Research Letters
ISSN: 0094-9511
EISSN: 1944-9242
出版年: 2016
卷: 43, 期:1
起始页码: 291
结束页码: 298
语种: 英语
英文关键词: Atlantic Meridional Overturning Circulation ; cold-water coral reef growth rate ; Holocene ; marine radiocarbon
Scopus关键词: Climate change ; Ecology ; Oceanography ; Surface waters ; Atlantic meridional overturning circulations ; Atmospheric reorganization ; Cold-water corals ; Holocene climate change ; Holocenes ; Marine radiocarbon ; Meridional overturning circulations ; North Atlantic Deep Water ; Ecosystems ; Anthozoa
英文摘要: Rapid changes in North Atlantic climate over the last millennia were driven by coupled sea surface/atmospheric processes and rates of deep water formation. Holocene climate changes, however, remain poorly documented due to a lack of high-resolution paleoclimate records, and their impacts on marine ecosystems remain unknown. We present a 4500 year absolute-dated sea surface radiocarbon record from northeast Atlantic cold-water corals. In contrast to the current view that surface ocean changes occurred on millennial-scale cycles, our record shows more abrupt changes in surface circulation. Changes were centered at 3.4, 2.7, 1.7, and 1.2 kyr B.P. and associated with atmospheric reorganization. Solar irradiance may have influenced these anomalies but changes in North Atlantic deep water convection are likely to have amplified these signals. Critically, we provide the first evidence that these perturbations in Atlantic Meridional Overturning Circulation led to the decline of cold-water coral ecosystems from 1.2 to ~ 0.1 kyr B.P. © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956581129&doi=10.1002%2f2015GL065999&partnerID=40&md5=744546c27283da6208e0de85f035c5a3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10474
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Grant Institute of Earth Science, School of Geosciences, University of Edinburgh, Edinburgh, United Kingdom

Recommended Citation:
Douarin M.,Elliot M.,Noble S.R.,et al. North Atlantic ecosystem sensitivity to Holocene shifts in Meridional Overturning Circulation[J]. Geophysical Research Letters,2016-01-01,43(1).
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