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dc.contributor.authorLynch-Stieglitz, Jean  Concept link
dc.contributor.authorSchmidt, Matthew W.  Concept link
dc.contributor.authorCurry, William B.  Concept link
dc.date.accessioned2011-03-22T16:46:09Z
dc.date.available2011-08-15T08:26:18Z
dc.date.issued2011-02-15
dc.identifier.citationPaleoceanography 26 (2011): PA1205en_US
dc.identifier.urihttps://hdl.handle.net/1912/4410
dc.descriptionAuthor Posting. © American Geophysical Union, 2011. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 26 (2011): PA1205, doi:10.1029/2010PA002032.en_US
dc.description.abstractThe waters passing through the Florida Straits today reflect both the western portion of the wind-driven subtropical gyre and the northward flow of the upper waters which cross the equator, compensating North Atlantic Deep Water export as part of the large-scale Atlantic meridional overturning circulation. It has been postulated from various lines of evidence that the overturning circulation was weaker during the Younger Dryas cold event of the last deglaciation. We show here that the contrast in the oxygen isotopic composition of benthic foraminiferal tests across the Florida Current is reduced during the Younger Dryas. This most likely reflects a decrease in the density gradient across the channel and a decrease in the vertical shear of the Florida Current. This reduced shear is consistent with the postulated reduction in the Atlantic meridional overturning circulation. We find that the onset of this change in density structure and flow at the start of the Younger Dryas is very abrupt, occurring in less than 70 years.en_US
dc.description.sponsorshipWe thank the National Science Foundation (grants OCE‐0648258 and OCE‐0096472) and the Comer Science and Education Foundation for supporting this research. MWS was supported by a NOAA Global Change Postdoctoral Fellowship.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.urihttps://doi.org/10.1029/2010PA002032
dc.subjectFlorida Straitsen_US
dc.subjectYounger Dryasen_US
dc.subjectFlorida Currenten_US
dc.titleEvidence from the Florida Straits for Younger Dryas ocean circulation changesen_US
dc.typeArticleen_US
dc.identifier.doi10.1029/2010PA002032


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