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dc.contributor.authorMcCarthy, Gerard D.  Concept link
dc.contributor.authorJoyce, Terrence M.  Concept link
dc.contributor.authorJosey, Simon A.  Concept link
dc.identifier.citationGeophysical Research Letters 45 (2018): 11,257-11,264en_US
dc.description© The Author(s), 2018. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Geophysical Research Letters 45 (2018): 11,257-11,264, doi:10.1029/2018GL079336.en_US
dc.description.abstractThe Gulf Stream plays an important role in North Atlantic climate variability on a range of timescales. The North Atlantic is notable for large decadal variability in sea surface temperatures (SST). Whether this variability is driven by atmospheric or oceanic influences is a disputed point. Long time series of atmospheric and ocean variables, in particular long time series of Gulf Stream position, reveal differing sources of SST variability on quasi‐decadal and multidecadal timescales. On quasi‐decadal timescales, an oscillatory signal identified in the North Atlantic Oscillation (NAO) controls SST evolution directly via air‐sea heat fluxes. However, on multidecadal timescales, this relationship between the NAO and SST changes, while the relationship between the NAO and Gulf Stream position remains consistent in phase and resonant in amplitude. Recent changes in the Gulf Stream Extension show a weakening and broadening of the current, consistent with increased instability. We consider these changes in the context of a weakening Atlantic overturning circulation.en_US
dc.description.sponsorshipEuropean Commission (EC) Grant Number: 727852en_US
dc.publisherJohn Wiley & Sonsen_US
dc.rightsAttribution 4.0 International*
dc.subjectAtlantic Oceanen_US
dc.subjectAtlantic multidecadal variabilityen_US
dc.subjectGulf Streamen_US
dc.subjectAtlantic meridional overturning circulationen_US
dc.subjectAir‐sea heat fluxesen_US
dc.titleGulf Stream variability in the context of quasi‐decadal and multidecadal Atlantic climate variabilityen_US

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Attribution 4.0 International
Except where otherwise noted, this item's license is described as Attribution 4.0 International