气候变化领域集成服务门户(CCPortal): Coupled ocean and atmospheric changes during Greenland stadial 1 in southwestern Europe

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DOI	10.1016/j.quascirev.2019.03.033
	Coupled ocean and atmospheric changes during Greenland stadial 1 in southwestern Europe
	Naughton F.; Costas S.; Gomes S.D.; Desprat S.; Rodrigues T.; Sanchez Goñi M.F.; Renssen H.; Trigo R.; Bronk-Ramsey C.; Oliveira D.; Salgueiro E.; Voelker A.H.L.; Abrantes F.
发表日期	2019
ISSN	0277-3791
起始页码	108
结束页码	120
卷号	212
英文摘要	Paleoclimate reconstructions suggest that the complex variability within the Greenland stadial 1 (GS-1) over western Europe was governed by coupled ocean and atmospheric changes. However, few works from the North Atlantic mid-latitudes document both the GS-1 onset and its termination, which are often considered as single abrupt transition events. Here, we present a direct comparison between marine (alkenone-based sea surface temperatures) and terrestrial (pollen) data, at very high resolution (28 years mean), from the southwestern Iberian shelf record D13882. Our results reveal a rather complex climatic period with internally changing conditions. The GS-1 onset (GS-1a: 12890-12720 yr BP) is marked by a progressive cooling and drying; GS-1b (12720-12390 yr BP) is the coldest and driest phase; GS-1c (12390-12030 yr BP) is marked by a progressive warming and increase in moisture conditions; GS-1 termination (GS-1d: 12030-11770 yr BP) is marked by rapid switches between cool wet, cold dry and cool wet conditions. Although hydroclimate response was very unsteady throughout the GS-1 and in particular during its termination phase, the persistence of an open temperate and Mediterranean forest in southwestern Iberia during the entire episode suggests that at least some moisture was delivered via the Westerlies. We propose coupled ocean and atmospheric mechanisms to reproduce these scenaria. Changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC) as well as variations in the North Atlantic sea-ice growth have favoured the displacement of the polar jet stream's latitudinal position and contributed to a complex spatial pattern and strength of the Westerlies across western Europe. © 2019 Elsevier Ltd
英文关键词	Complex climate variability; Greenland stadial 1; Iberian margin; Jet stream; Moisture availability; North atlantic; Paleoclimate; Westerlies; Younger Dryas
语种	英语
scopus关键词	Moisture; Sea ice; Surface waters; Climate variability; Greenland; Iberian margin; Jet streams; North Atlantic; Paleoclimates; Westerlies; Younger Dryas; Oceanography; atmosphere-ocean coupling; cooling; interstadial; jet stream; latitudinal gradient; meridional circulation; midlatitude environment; moisture; paleoceanography; paleoclimate; sea ice; westerly; Arctic; Atlantic Ocean; Atlantic Ocean (North); Greenland; Iberian Margin; Western Europe
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151946
作者单位	Portuguese Institute for Sea and Atmosphere (IPMA), Rua Alfredo Magalhães Ramalho 6, Lisboa, 1495-006, Portugal; Center of Marine Sciences (CCMAR), Algarve University, Campus de Gambelas, Faro, 8005-139, Portugal; Centre for Marine and Environmental Research (CIMA), Algarve University, Campus de Gambelas, Faro, 8005-139, Portugal; Quaternary Environments and Geoarchaeology (QEG), Department of Geography, School of Environment, Education and Development, The University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom; Ecole Pratique des Hautes Etudes (EPHE, PSL), Paris, 75014, France; UMR CNRS 5805 EPOC Université de Bordeaux, Allée Geoffroy St Hilaire, Pessac, 33615, France; University of South-Eastern Norway, Bø, Norway; Instituto Dom Luiz, Lisbon University, Lisboa, 1749-016, Portugal; Research Laboratory for Archaeology and the History of Art, University of Oxford, Dyson Perrins Building, South Parks Rd, Oxford, OX1 3QY, United Kingdom
推荐引用方式 GB/T 7714	Naughton F.,Costas S.,Gomes S.D.,et al. Coupled ocean and atmospheric changes during Greenland stadial 1 in southwestern Europe[J],2019,212.
APA	Naughton F..,Costas S..,Gomes S.D..,Desprat S..,Rodrigues T..,...&Abrantes F..(2019).Coupled ocean and atmospheric changes during Greenland stadial 1 in southwestern Europe.Quaternary Science Reviews,212.
MLA	Naughton F.,et al."Coupled ocean and atmospheric changes during Greenland stadial 1 in southwestern Europe".Quaternary Science Reviews 212(2019).