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Article: Increased multidecadal variability of the north atlantic oscillation since 1781

TitleIncreased multidecadal variability of the north atlantic oscillation since 1781
Authors
Issue Date2008
Citation
Nature Geoscience, 2008, v. 1 n. 12, p. 844-848 How to Cite?
AbstractThe North Atlantic Oscillation is a meridional oscillation of atmospheric mass measured between Iceland and the Açores, which drives winter climate variability in eastern North America and Europe. A prolonged period of the positive phase during the 1990s led to the suggestion that anthropogenic warming was affecting the behaviour of the North Atlantic Oscillation. However, instrumental records are too short to compare observations during periods of extended warm and cold hemispheric temperatures, and existing palaeoclimate reconstructions primarily capture terrestrial variability. Here we present a record of Sr/Ca, a sea surface temperature proxy, from a Bermuda coral from 1781 to 1999. We use this monthly resolved record to reconstruct past variability of the North Atlantic Oscillation at multiple frequencies. Our record shows enhanced multidecadal scale variability during the late twentieth century compared with the end of the Little Ice Age (1800-1850). We suggest that variability within the North Atlantic Oscillation is linked to the mean temperature of the Northern Hemisphere, which must be considered in any long-term predictions. © 2008 Macmillan Publishers Limited. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/151280
ISSN
2015 Impact Factor: 12.508
2015 SCImago Journal Rankings: 7.297
ISI Accession Number ID
Funding AgencyGrant Number
NSFOCE-0402728
Woods Hole Oceanographic Institution
Funding Information:

We are indebted to A. Cohen for providing the coral samples and to M. McCartney. This analysis benefited greatly from the comments of P. Huybers and T. Farrar. Thanks to E. Boyle, A. Czaja, A. Solow, D. Ostermann, S. Smith, G. Webster, S. du Putron, G. Piniak, J. Pitt, D. Schrag, C. Bertrand, P. Landry, and D. Glover for informative conversations, technical and logistical help. A Woods Hole Oceanographic Institution OCCI Fellowship, and grants from NSF (OCE-0402728) and Woods Hole Oceanographic Institution supported this work.

References

 

DC FieldValueLanguage
dc.contributor.authorGoodkin, NFen_US
dc.contributor.authorHughen, KAen_US
dc.contributor.authorDoney, SCen_US
dc.contributor.authorCurry, WBen_US
dc.date.accessioned2012-06-26T06:19:58Z-
dc.date.available2012-06-26T06:19:58Z-
dc.date.issued2008en_US
dc.identifier.citationNature Geoscience, 2008, v. 1 n. 12, p. 844-848en_US
dc.identifier.issn1752-0894en_US
dc.identifier.urihttp://hdl.handle.net/10722/151280-
dc.description.abstractThe North Atlantic Oscillation is a meridional oscillation of atmospheric mass measured between Iceland and the Açores, which drives winter climate variability in eastern North America and Europe. A prolonged period of the positive phase during the 1990s led to the suggestion that anthropogenic warming was affecting the behaviour of the North Atlantic Oscillation. However, instrumental records are too short to compare observations during periods of extended warm and cold hemispheric temperatures, and existing palaeoclimate reconstructions primarily capture terrestrial variability. Here we present a record of Sr/Ca, a sea surface temperature proxy, from a Bermuda coral from 1781 to 1999. We use this monthly resolved record to reconstruct past variability of the North Atlantic Oscillation at multiple frequencies. Our record shows enhanced multidecadal scale variability during the late twentieth century compared with the end of the Little Ice Age (1800-1850). We suggest that variability within the North Atlantic Oscillation is linked to the mean temperature of the Northern Hemisphere, which must be considered in any long-term predictions. © 2008 Macmillan Publishers Limited. All rights reserved.en_US
dc.languageengen_US
dc.relation.ispartofNature Geoscienceen_US
dc.titleIncreased multidecadal variability of the north atlantic oscillation since 1781en_US
dc.typeArticleen_US
dc.identifier.emailGoodkin, NF:goodkin@hkucc.hku.hken_US
dc.identifier.authorityGoodkin, NF=rp00700en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1038/ngeo352en_US
dc.identifier.scopuseid_2-s2.0-65349169523en_US
dc.identifier.hkuros155457-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-65349169523&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume1en_US
dc.identifier.issue12en_US
dc.identifier.spage844en_US
dc.identifier.epage848en_US
dc.identifier.isiWOS:000261278700016-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridGoodkin, NF=12446578100en_US
dc.identifier.scopusauthoridHughen, KA=6701562711en_US
dc.identifier.scopusauthoridDoney, SC=35498837200en_US
dc.identifier.scopusauthoridCurry, WB=7005309236en_US

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