{"NOAAStudyId":"5593","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":"2007-07-01","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-5593.xml","doi":null,"earliestYearBP":13008,"earliestYearCE":-11058,"entryId":"noaa-ocean-5593","funding":[],"investigators":"Came, R.E.; Oppo, D.W.; McManus, J.F.","mostRecentYearBP":461,"mostRecentYearCE":1489,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/5593","originalSource":null,"publication":[{"abstract":"Paired planktic foraminiferal {delta}18O and Mg/Ca data reveal trends of increasing temperatures (~3 °C) and salinities in the subpolar North Atlantic over the course of the Holocene, which were punctuated by abrupt events. The trends likely reflect an insolation-forced northward retreat of the boundary between polar and North Atlantic subsurface waters. The superimposed variability does not appear to be periodic, but tends to recur within a broad millennial band. The records provide convincing evidence of open-ocean cooling (nearly 2 °C) and freshening during the 8.2 ka event, and suggest similar conditions at 9.3 ka. However, the two largest temperature oscillations in our record (~2 °C) occurred during the past 4 k.y., suggesting a recent increase in temperature variability relative to the mid-Holocene, perhaps in response to neoglaciation, which began at about this time.","author":null,"citation":"Came, R.E., D.W. Oppo, and J.F. McManus.  2007. Amplitude and timing of temperature and salinity variability in the subpolar North Atlantic over the past 10 k.y. Geology, 35(4), 315ŋ318.","edition":null,"identifier":null,"issue":null,"journal":"Geology","pages":null,"pubRank":"1","pubYear":2007,"reportNumber":null,"title":"Amplitude and timing of temperature and salinity variability in the subpolar North Atlantic over the past 10 k.y.","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Sea Surface Temperature Reconstruction"],"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":"7978","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>trace metals in carbonates","earth science>paleoclimate>paleocean>population abundance","earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/came2007","linkText":"came2007","urlDescription":"Original Data and Full Metadata","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>trace metals in carbonates","earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>population abundance","earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/odp984-tab.txt","linkText":"odp984-tab.txt","urlDescription":"Alternate Format Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>element or compound ratio>magnesium/calcium","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>sea water temperature>sea surface temperature"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"radiocarbon year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Neogloboquadrina sp.>Neogloboquadrina pachyderma>Neogloboquadrina pachyderma dextral","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"microgram","cvWhat":"physical property>weight"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Neogloboquadrina sp.>Neogloboquadrina pachyderma>Neogloboquadrina pachyderma dextral","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"dimensionless","cvWhat":"chemical composition>element or compound ratio>magnesium/calcium"}]}],"dataTableName":"ODP984","dataTableNotes":"Neogloboquadrina pachyderma dextral [N. pachyderma (d.)] were picked from the size fraction 150-212 microns. Each Mg/Ca sample consisted of approximately 50 individuals, which were crushed and cleaned using the full trace metal method, with a reversal of ","earliestYear":11099,"earliestYearBP":13008,"earliestYearCE":-11058,"mostRecentYear":446,"mostRecentYearBP":461,"mostRecentYearCE":1489,"species":[],"timeUnit":"14C yr BP"}],"siteName":"ODP 984"}],"studyCode":null,"studyName":"Subpolar North Atlantic (ODP984) Holocene Planktic d18O and Mg/Ca Data","studyNotes":null,"version":"1.0","xmlId":"1707"}