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dc.contributor.authorKuzmina, Svetlana I.eng
dc.contributor.authorBengtsson, Lennarteng
dc.contributor.authorJohannessen, Ola M.eng
dc.contributor.authorDrange, Helgeeng
dc.contributor.authorBobylev, Leonid P.eng
dc.contributor.authorMiles, Martin W.eng
dc.date.accessioned2005-03-09T14:03:05Z
dc.date.available2005-03-09T14:03:05Z
dc.date.issued2005-02-17eng
dc.identifier.citationGeophysical Research Letters 2005 32:(4)en
dc.identifier.issn0094-8276eng
dc.identifier.urihttp://hdl.handle.net/1956/626
dc.description.abstractThe results of 12 coupled climate models participating in the Coupled Model Intercomparison Project (CMIP2) are compared together with observational data in order to investigate: 1) How the current generation of climate models reproduce the major features of the winter North Atlantic Oscillation (NAO), and 2) How the NAO intensity and variability may change in response to increasing atmospheric CO2 concentration. Long-term changes in the intensity and spatial position of the NAO nodes (Icelandic Low and Azores High) are investigated, and different definitions of the NAO index and the Arctic Oscillation (AO) are considered. The observed temporal trend in the NAO in recent decades lies beyond the natural variability found in the model control runs. For the majority of the models, there is a significant increase in the NAO trend in the forced runs relative to the control runs, suggesting that the NAO may intensify with further increases in greenhouse-gas concentrations.en
dc.format.extent490994 byteseng
dc.format.mimetypeapplication/pdfeng
dc.language.isoengeng
dc.publisherAmerican Geophysical Unioneng
dc.subjectClimate dynamicseng
dc.subjectClimatologyeng
dc.titleThe North Atlantic Oscillation and greenhouse-gas forcingeng
dc.typeJournal articleeng
dc.typePeer reviewedeng
bora.peerreviewedPeer reviewedeng
bibo.doihttp://dx.doi.org/10.1029/2004GL021064eng
dc.identifier.doihttp://dx.doi.org/10.1029/2004GL021064


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