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dc.contributor.authorSong, Hajoon  Concept link
dc.contributor.authorMarshall, John C.  Concept link
dc.contributor.authorGaube, Peter  Concept link
dc.contributor.authorMcGillicuddy, Dennis J.  Concept link
dc.date.accessioned2015-05-13T18:20:17Z
dc.date.available2015-08-23T08:13:27Z
dc.date.issued2015-02-23
dc.identifier.citationJournal of Geophysical Research: Oceans 120 (2015): 1065–1078en_US
dc.identifier.urihttps://hdl.handle.net/1912/7287
dc.descriptionAuthor Posting. © American Geophysical Union, 2015. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 120 (2015): 1065–1078, doi:10.1002/2014JC010292.en_US
dc.description.abstractThe role of mesoscale eddies in the uptake of anthropogenic chlorofluorocarbon-11 (CFC-11) gas is investigated with a 1/20° eddy-resolving numerical ocean model of a region of the Southern Ocean. With a relatively fast air-sea equilibrium time scale (about a month), the air-sea CFC-11 flux quickly responds to the changes in the mixed layer CFC-11 partial pressure (pCFC-11). At the mesoscale, significant correlations are observed between pCFC-11 anomaly, anomalies in sea surface temperature (SST), net heat flux, and mixed layer depth. An eddy-centric analysis of the simulated CFC-11 field suggests that anticyclonic warm-core eddies generate negative pCFC-11 anomalies and cyclonic cold-core eddies generate positive anomalies of pCFC-11. Surface pCFC-11 is modulated by mixed layer dynamics in addition to CFC-11 air-sea fluxes. A negative cross correlation between mixed layer depth and surface pCFC-11 anomalies is linked to higher CFC-11 uptake in anticyclones and lower CFC-11 uptake in cyclones, especially in winter. An almost exact asymmetry in the air-sea CFC-11 flux between cyclones and anticyclones is found.en_US
dc.description.sponsorshipWe gratefully acknowledge NSF support of the MOBY project (grant OCE-1048926 to MIT and OCE-1048897 to WHOI). In addition, P.G. and D.J.M. thank NASA for partial support of this work through grant NNX13AE47G.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherJohn Wiley & Sonsen_US
dc.relation.urihttps://doi.org/10.1002/2014JC010292
dc.subjectMesoscale eddiesen_US
dc.subjectChlorofluorocarbon-11en_US
dc.subjectAir-sea fluxen_US
dc.subjectSouthern Oceanen_US
dc.titleAnomalous chlorofluorocarbon uptake by mesoscale eddies in the Drake Passage regionen_US
dc.typeArticleen_US
dc.description.embargo2015-08-23en_US
dc.identifier.doi10.1002/2014JC010292


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