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These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2009-12-01","dataPublisher":"NOAA","dataType":"PALEOCEANOGRAPHY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/paleoceanography","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-8720.xml","doi":null,"earliestYearBP":27784,"earliestYearCE":-25834,"entryId":"noaa-ocean-8720","funding":[],"investigators":"Came, R.E.; Oppo, D.W.; Curry, W.B.; Lynch-Stieglitz, J.","mostRecentYearBP":613,"mostRecentYearCE":1337,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/8720","originalSource":null,"publication":[{"abstract":"Benthic foraminiferal Cd/Ca from a Florida Current sediment core documents the history of the northward penetration of southern source waters within the surface return flow of the Atlantic meridional overturning circulation (AMOC). Cd seawater estimates (CdW) indicate that intermediate‐depth southern source waters crossed the equator and contributed to the Florida Current during the Bølling-Allerød warm period of the last deglaciation, consistent with evidence of only a modest AMOC reduction compared to today. The CdW  estimates also provide the first paleoceanographic evidence of a reduction in the influence of intermediate-depth southern source waters within the Florida Current during the Younger Dryas, a deglacial cold event characterized by a weak North Atlantic AMOC. Our results reveal a close correspondence between the northward penetration of intermediate-depth southern source waters and the influence of North Atlantic Deep Water, suggesting a possible link between intermediate-depth southern source waters and the strength of the Atlantic AMOC.","author":null,"citation":"Came, R.E., D.W. Oppo, W.B. Curry, and J. Lynch-Stieglitz. 2008. Deglacial variability in the surface return flow of the Atlantic meridional overturning circulation. 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water Cd concentrations with a partition coefficient DP = [(Cd/Ca)foram/(Cd/Ca)water] ≈ 1.0 [Boyle et al., 1995]. The partition coefficient for the aragonitic species H. elegans is constant with depth, unlike the partition coefficients of calcitic foraminifera, which are depth dependent [Boyle, 1992]. A constant seawater Ca concentration of 0.01 mol kg−1 was assumed to estimate Cd water concentrations.","version":"1.0","xmlId":"2796"}