气候变化领域集成服务门户(CCPortal): Palaeo-productivity record from Norwegian Sea enables North Atlantic Oscillation (NAO) reconstruction for the last 8000 years

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DOI	10.1038/s41612-020-00147-6
	Palaeo-productivity record from Norwegian Sea enables North Atlantic Oscillation (NAO) reconstruction for the last 8000 years
	Becker L.W.M.; Sejrup H.P.; Hjelstuen B.O.; Haflidason H.; Kjennbakken H.; Werner J.P.
发表日期	2020
ISSN	23973722
卷号	3 期号:1
英文摘要	The North Atlantic Oscillation is the dominant atmospheric driver of North Atlantic climate variability with phases corresponding to droughts and cold spells in Europe. Here, we exploit a suggested anti-correlation of North Atlantic Oscillation-phase and north-eastern North Atlantic primary productivity by investigation of south-eastern Norwegian Sea sediment cores spanning the last 8000 years. Age model uncertainties between 2 and 13 years for the period 1992–1850 AD allows for the proxy to observational data calibration. Our data suggest that Ca/Fe core-scanning results reflect sedimentary CaCO3 variability in the region. Cross-correlating the Ca/Fe record with nearby phytoplankton counts and dissolved O2 data suggests that Ca/Fe can be used as a proxy for primary productivity variability in the region. Our data support an anti-correlation of primary productivity to the winter North Atlantic Oscillation index. Hence, we propose a sub-decadally resolved palaeo-North Atlantic Oscillation reconstruction based on an open-ocean record spanning the last 8000 years. © 2020, The Author(s).
语种	英语
scopus关键词	correlation; historical record; North Atlantic Oscillation; paleoclimate; paleoproductivity; reconstruction; sediment core; Arctic Ocean; Atlantic Ocean; Atlantic Ocean (North); Norwegian Sea
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178022
作者单位	Department of Earth Science, University of Bergen, Bergen, Norway; Norconsult AS, Sandvika, Norway; Bjerknes Centre for Climate Research, Bergen, Norway; Rambøll AS, Bergen, Norway
推荐引用方式 GB/T 7714	Becker L.W.M.,Sejrup H.P.,Hjelstuen B.O.,et al. Palaeo-productivity record from Norwegian Sea enables North Atlantic Oscillation (NAO) reconstruction for the last 8000 years[J],2020,3(1).
APA	Becker L.W.M.,Sejrup H.P.,Hjelstuen B.O.,Haflidason H.,Kjennbakken H.,&Werner J.P..(2020).Palaeo-productivity record from Norwegian Sea enables North Atlantic Oscillation (NAO) reconstruction for the last 8000 years.npj Climate and Atmospheric Science,3(1).
MLA	Becker L.W.M.,et al."Palaeo-productivity record from Norwegian Sea enables North Atlantic Oscillation (NAO) reconstruction for the last 8000 years".npj Climate and Atmospheric Science 3.1(2020).