{"NOAAStudyId":"19339","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":"2015-10-08","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-19339.xml","doi":null,"earliestYearBP":309460,"earliestYearCE":-307510,"entryId":"noaa-ocean-19339","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"OCE-0095219"}],"investigators":"Elmore, A.C.; Wright, J.D.; Chalk, T.B.","mostRecentYearBP":0,"mostRecentYearCE":1950,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/19339","originalSource":null,"publication":[{"abstract":"Benthic foraminiferal stable isotopic records from a transect of sediment cores south of the Iceland-Scotland Ridge reveal that the penetration depth of Iceland-Scotland Overflow Water (ISOW) varied on orbital timescales with precessional pacing over the past ~ 200 kyr. Similar, higher benthic foraminiferal d13C values (~ 1.0 ‰) were recorded at all transect sites downstream of the Iceland-Scotland Ridge during interglacial periods (Marine Isotope Chrons 5 and 1), indicating a deeply penetrating ISOW. During glacial periods (Marine Isotope Chrons 6, 4, and 2), benthic foraminiferal d13C values from the deeper (2700-3300 m), southern sites within this transect were significantly lower (~ 0.5 ‰) than values from the northern (shallower) portion of the transect (~ 1.0 ‰), reflecting a shoaling of ISOW and greater influence of glacial Southern Component Water (SCW) in the deep Northeast Atlantic. Particularly during intermediate climate states, ISOW strength is driven by precesional cycles, superimposed on the large-scale glacial-interglacial ISOW variability. Millennial-scale variability in the penetration of ISOW, likely caused by high-frequency Heinrich and Dansgaard-Oeschger Events, is most pronounced during intermediate climate states.\r\n","author":{"name":"Elmore, A.C., J.D. Wright, and T.B. Chalk\r\n"},"citation":"Elmore, A.C., J.D. Wright, and T.B. Chalk\r\n. 2015. Precission-driven changes in Iceland-Scotland Overflow Water penetration and bottom water circulation on Gardar Drift since ~200 ka\r\n. Palaeogeography, Palaeoclimatology, Palaeoecology, 440, 551-563. doi: 10.1016/j.palaeo.2015.09.042","edition":null,"identifier":{"id":"10.1016/j.palaeo.2015.09.042","type":"doi","url":"http://dx.doi.org/10.1016/j.palaeo.2015.09.042"},"issue":null,"journal":"Palaeogeography, Palaeoclimatology, Palaeoecology","pages":"551-563","pubRank":"1","pubYear":2015,"reportNumber":null,"title":"Precission-driven changes in Iceland-Scotland Overflow Water penetration and bottom water circulation on Gardar Drift since ~200 ka\r\n","type":"publication","volume":"440"}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"56357","geo":{"geoType":"Feature","geometry":{"coordinates":["56.233333","-27.65"],"type":"POINT"},"properties":{"easternmostLongitude":"-27.65","maxElevationMeters":"-2707","minElevationMeters":"-2707","northernmostLatitude":"56.233333","southernmostLatitude":"56.233333","westernmostLongitude":"-27.65"}},"locationName":"Ocean>Atlantic Ocean>North Atlantic 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