{"NOAAStudyId":"20127","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","constraints":"Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. 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":"2016-05-09","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-20127.xml","doi":null,"earliestYearBP":167000,"earliestYearCE":-165050,"entryId":"noaa-ocean-20127","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":null},{"fundingAgency":"Faculty for the Future of Schlumberger Foundation ","fundingGrant":null}],"investigators":"Mokeddem, Z.; McManus, J.F.","mostRecentYearBP":83000,"mostRecentYearCE":-81050,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/20127","originalSource":null,"publication":[{"abstract":"Rapidly accumulating sediments from the Bjorn drift deposit south of Iceland are studied for comparison of glacial/interglacial climate changes related to millennial variability of the subpolar surface and deep ocean circulation in the North Atlantic. High-resolution faunal, isotopic, and sedimentary analyses reveal a strong multimillennial climatic variability interpreted as oscillations in heat transport westward south of Iceland during marine isotope stage 6 (MIS 6), possibly related to the strength of the subpolar gyre (SPG). The oscillations persisted from MIS 6 through the following interglacial (MIS 5), although with diminished magnitude, and were respectively characterized by repeated advances of the polar front south of Iceland during MIS 6 and southward migrations of the Arctic front due to cold surface outflow through the East Greenland and East Iceland Currents during MIS 5. Incursions of cold, fresh surface waters, and drifting ice affected the dynamics of the SPG, episodically causing it to weaken and contract to the northwest. During these intervals of diminished SPG, the northward transport of subtropical heat and salt was strengthened and preferentially conveyed to the northeast past Iceland, enhancing deep‐water formation in the Nordic Seas. By contrast, when the SPG was strong, more subtropical water and its associated heat were entrained within the relatively warm Irminger Current flowing westward south of Iceland. These oceanographic oscillations were associated with repeated multimillennial cooling and warming episodes during the glacial stage MIS 6, equivalent to the Dansgaard-Oeschger cycles of the last glaciation.","author":{"name":"Zohra Mokeddem, Jerry F. McManus"},"citation":"Zohra Mokeddem, Jerry F. McManus. 2016. Persistent climatic and oceanic oscillations in the subpolar North Atlantic during MIS 6 glaciation and MIS 5 interglacial. Paleoceanography. . doi: 10.1002/2015PA002813","edition":null,"identifier":{"id":"10.1002/2015PA002813","type":"doi","url":"http://dx.doi.org/10.1002/2015PA002813"},"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":2016,"reportNumber":null,"title":"Persistent climatic and oceanic oscillations in the subpolar North Atlantic during MIS 6 glaciation and MIS 5 interglacial","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"19317","geo":{"geoType":"Feature","geometry":{"coordinates":["61.43","-24.08"],"type":"POINT"},"properties":{"easternmostLongitude":"-24.08","maxElevationMeters":"-1648","minElevationMeters":"-1648","northernmostLatitude":"61.43","southernmostLatitude":"61.43","westernmostLongitude":"-24.08"}},"locationName":"Ocean>Atlantic Ocean>North Atlantic Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"30799","coreLengthMeters":12,"dataFile":[{"NOAAKeywords":["earth 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