Opin vísindi

Annually resolved North Atlantic marine climate over the last millennium

Annually resolved North Atlantic marine climate over the last millennium

Title: Annually resolved North Atlantic marine climate over the last millennium
Author: Reynolds, D. J.
Scourse, J. D.
Halloran, P. R.
Nederbragt, A. J.
Wanamaker, A. D.
Butler, P. G.
Richardson, C. A.
Heinemeier, J.
Eiriksson, Jon   orcid.org/0000-0001-5598-2417
Knudsen, K. L.
... 1 more authors Show all authors
Date: 2016-12-06
Language: English
Scope: 13502
University/Institute: Háskóli Íslands
University of Iceland
School: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Department: Jarðvísindastofnun (HÍ)
Institute of Earth Sciences (UI)
Series: Nature Communications;7
ISSN: 2041-1723
DOI: 10.1038/ncomms13502
Subject: Ocean sciences; Palaeoceanography; Palaeoclimate; Haffræði; Jarðsaga; Loftslag
URI: https://hdl.handle.net/20.500.11815/383

Show full item record


Reynolds, D. J. et al. Annually resolved North Atlantic marine climate over the last millennium. Nat. Commun. 7, 13502 doi: 10.1038/ncomms13502 (2016).


Owing to the lack of absolutely dated oceanographic information before the modern instrumental period, there is currently significant debate as to the role played by North Atlantic Ocean dynamics in previous climate transitions (for example, Medieval Climate Anomaly-Little Ice Age, MCA-LIA). Here we present analyses of a millennial-length, annually resolved and absolutely dated marine δ18O archive. We interpret our record of oxygen isotope ratios from the shells of the long-lived marine bivalve Arctica islandica (δ18O-shell), from the North Icelandic shelf, in relation to seawater density variability and demonstrate that solar and volcanic forcing coupled with ocean circulation dynamics are key drivers of climate variability over the last millennium. During the pre-industrial period (AD 1000–1800) variability in the sub-polar North Atlantic leads changes in Northern Hemisphere surface air temperatures at multi-decadal timescales, indicating that North Atlantic Ocean dynamics played an active role in modulating the response of the atmosphere to solar and volcanic forcing.


This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

Files in this item

This item appears in the following Collection(s)