{"NOAAStudyId":"11821","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":"2011-07-17","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-11821.xml","doi":null,"earliestYearBP":128130,"earliestYearCE":-126180,"entryId":"noaa-ocean-11821","funding":[{"fundingAgency":"NERC","fundingGrant":"NE/H009930/1"}],"investigators":"Hodell, D.A.; Evans, H.F.; Channell, J.E.T.; Curtis, J.H.","mostRecentYearBP":34,"mostRecentYearCE":1916,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/11821","originalSource":null,"publication":[{"abstract":"We report stable isotope, core scanning XRF, and ice-rafted detritus \r\n(IRD) data in glacial-aged sediments from piston Core KN166-14-JPC-13 \r\n(hereafter referred to as JPC-13) retrieved at 53.1°N 33.5°W on the \r\nsouthern Gardar Drift, North Atlantic. A chronology was established \r\nby correlating millennial-scale features in the benthic d18O record \r\nto Portuguese Margin Core MD95-2042. Once the alignment of benthic \r\nd18O of JPC-13 to MD95-2042 is fixed, the relative timing of proxy \r\nvariables is used to determine the phasing of changes in IRD and \r\nsurface-deep hydrography. Each peak in North Atlantic IRD coincided \r\nwith a decrease in benthic d18O that, in turn, has been linked to \r\nwarming in Antarctica (Events A1-A7). The IRD pulses are followed \r\nshortly thereafter by abrupt decreases in planktonic d18O, indicating \r\nwarming and increased heat transport to the subpolar North Atlantic \r\nassociated with Greenland interstadials (GIS) 8, 12, 14, and 16-17. \r\nGrain-size and elemental (K/Ti) variations indicate that Iceland-\r\nScotland Overflow Water (ISOW) was stronger during these long, \r\nwarm interstadial periods of Marine Isotope Stage (MIS) 3. \r\nThe results are consistent with interhemispheric phase relationships \r\ninferred from Iberian Margin sediment cores and with methane \r\nsynchronization of Greenland and Antarctic ice cores. \r\n","author":null,"citation":"Hodell, D.A., H.F. Evans, J.E.T. Channell, and J.H. Curtis. 2010. \r\nPhase relationships of North Atlantic ice-rafted debris \r\nand surface-deep climate proxies during the last glacial period. \r\nQuaternary Science Reviews, Vol. 29, pp. 3875-3886.  \r\ndoi:10.1016/j.quascirev.2010.09.006 \r\n","edition":null,"identifier":{"id":"10.1016/j.quascirev.2010.09.006","type":"doi","url":"http://dx.doi.org/10.1016/j.quascirev.2010.09.006"},"issue":null,"journal":"Quaternary Science Reviews","pages":null,"pubRank":"1","pubYear":2010,"reportNumber":null,"title":"Phase relationships of North Atlantic ice-rafted debris  and surface-deep climate proxies during the last glacial period","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["Meridional Overturning Circulation (MOC)"],"site":[{"NOAASiteId":"52284","geo":{"geoType":"Feature","geometry":{"coordinates":["53.0568","-33.5297"],"type":"POINT"},"properties":{"easternmostLongitude":"-33.5297","maxElevationMeters":"-3082","minElevationMeters":"-3082","northernmostLatitude":"53.0568","southernmostLatitude":"53.0568","westernmostLongitude":"-33.5297"}},"locationName":"Ocean>Atlantic Ocean>North Atlantic Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"20097","coreLengthMeters":17,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>lithology","earth science>paleoclimate>paleocean>carbon isotopes","earth science>paleoclimate>paleocean>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2010/hodell2010.txt","linkText":"hodell2010.txt","urlDescription":"Original Data and Full Metadata","variables":[{"cvAdditionalInfo":"particles > 63 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bulloides","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"percent","cvWhat":"geological material>bulk geological material>mineral matter"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"percent","cvWhat":"biological material>organism>foraminifer>foraminiferal index>total foraminifers"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"percent","cvWhat":"geological material>bulk geological material>mineral matter>volcanic material"},{"cvAdditionalInfo":"log-normalized","cvDataType":"PALEOCEANOGRAPHY","cvDetail":"normalized","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":"x-ray fluorescence spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>element or compound ratio>potassium/titanium"},{"cvAdditionalInfo":"3-point smoothed","cvDataType":"PALEOCEANOGRAPHY","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":"x-ray fluorescence spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>element or compound ratio>potassium/titanium"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":"x-ray fluorescence spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>element or compound ratio>zirconium/strontium"},{"cvAdditionalInfo":"3-point smoothed","cvDataType":"PALEOCEANOGRAPHY","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>bulk geological material>sediment","cvMethod":"x-ray fluorescence spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>element or compound ratio>zirconium/strontium"}]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>oxygen isotopes","earth science>paleoclimate>paleocean>carbon isotopes","earth science>paleoclimate>paleocean>lithology"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hodell2010/hodell2010.xls","linkText":"hodell2010.xls","urlDescription":"Original Data and Full Metadata","variables":[]}],"dataTableName":"KN166-14-JPC-13","dataTableNotes":null,"earliestYear":128130,"earliestYearBP":128130,"earliestYearCE":-126180,"mostRecentYear":34,"mostRecentYearBP":34,"mostRecentYearCE":1916,"species":[],"timeUnit":"cal yr BP"}],"siteName":"KN166-14-JPC-13"}],"studyCode":null,"studyName":"Gardar Drift JPC-13 128KYr Multiproxy Sediment Data","studyNotes":"Stable isotope, core scanning XRF, and ice-rafted detritus (IRD) \ndata from piston Core KN166-14-JPC-13 collected from the southern \nGardar Drift, North Atlantic Ocean.\n","version":"1.0","xmlId":"9940"}