dc.contributor.author | Becker, Lukas | |
dc.contributor.author | Sejrup, Hans Petter | |
dc.contributor.author | Hjelstuen, Berit Oline Blihovde | |
dc.contributor.author | Haflidason, Haflidi | |
dc.contributor.author | Kjennbakken, Heidi | |
dc.contributor.author | Werner, Johannes | |
dc.date.accessioned | 2021-08-05T11:14:27Z | |
dc.date.available | 2021-08-05T11:14:27Z | |
dc.date.created | 2020-11-20T12:12:37Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 2397-3722 | |
dc.identifier.uri | https://hdl.handle.net/11250/2766479 | |
dc.description.abstract | 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. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Springer Nature | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Palaeo-productivity record from Norwegian Sea enables North Atlantic Oscillation (NAO) reconstruction for the last 8000 years | en_US |
dc.type | Journal article | en_US |
dc.type | Peer reviewed | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Copyright 2020 The Authors | en_US |
dc.source.articlenumber | 42 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.doi | 10.1038/s41612-020-00147-6 | |
dc.identifier.cristin | 1850368 | |
dc.source.journal | npj Climate and Atmospheric Science | en_US |
dc.identifier.citation | npj Climate and Atmospheric Science. 2020, 3:42 | en_US |
dc.source.volume | 3 | en_US |