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dc.contributor.authorArmour, Kyle C.
dc.contributor.authorDonohoe, Aaron
dc.contributor.authorNewsom, Emily R.
dc.contributor.authorMarshall, John C
dc.contributor.authorScott, Jeremy
dc.date.accessioned2017-01-19T19:07:49Z
dc.date.available2017-01-19T19:07:49Z
dc.date.issued2016-05
dc.date.submitted2016-02
dc.identifier.issn1752-0894
dc.identifier.issn1752-0908
dc.identifier.urihttp://hdl.handle.net/1721.1/106534
dc.description.abstractThe Southern Ocean has shown little warming over recent decades, in stark contrast to the rapid warming observed in the Arctic. Along the northern flank of the Antarctic Circumpolar Current, however, the upper ocean has warmed substantially. Here we present analyses of oceanographic observations and general circulation model simulations showing that these patterns—of delayed warming south of the Antarctic Circumpolar Current and enhanced warming to the north—are fundamentally shaped by the Southern Ocean’s meridional overturning circulation: wind-driven upwelling of unmodified water from depth damps warming around Antarctica; greenhouse gas-induced surface heat uptake is largely balanced by anomalous northward heat transport associated with the equatorward flow of surface waters; and heat is preferentially stored where surface waters are subducted to the north. Further, these processes are primarily due to passive advection of the anomalous warming signal by climatological ocean currents; changes in ocean circulation are secondary. These findings suggest the Southern Ocean responds to greenhouse gas forcing on the centennial, or longer, timescale over which the deep ocean waters that are upwelled to the surface are warmed themselves. It is against this background of gradual warming that multidecadal Southern Ocean temperature trends must be understood.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (grant OCE-1259388)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (grant OCE-1338814)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (grant OCE-1523641)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (grant PLR-1341497)en_US
dc.description.sponsorshipUnited States. National Aeronautics and Space Administration (award NNX11AL79G)en_US
dc.language.isoen_US
dc.publisherNature Publishing Groupen_US
dc.relation.isversionofhttp://dx.doi.org/10.1038/ngeo2731en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourceMIT Web Domainen_US
dc.titleSouthern Ocean warming delayed by circumpolar upwelling and equatorward transporten_US
dc.typeArticleen_US
dc.identifier.citationArmour, Kyle C., John Marshall, Jeffery R. Scott, Aaron Donohoe, and Emily R. Newsom. “Southern Ocean Warming Delayed by Circumpolar Upwelling and Equatorward Transport.” Nature Geoscience, vol. 9, no. 7, 2016, pp. 549–554.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Center for Global Change Scienceen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.contributor.mitauthorMarshall, John C
dc.contributor.mitauthorScott, Jeffery R
dc.relation.journalNature Geoscienceen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsArmour, Kyle C.; Marshall, John; Scott, Jeffery R.; Donohoe, Aaron; Newsom, Emily R.en_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-9230-3591
mit.licenseOPEN_ACCESS_POLICYen_US
mit.metadata.statusComplete


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