{"NOAAStudyId":"2614","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":"2002-01-01","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-2614.xml","doi":null,"earliestYearBP":361500,"earliestYearCE":-359550,"entryId":"noaa-ocean-2614","funding":[],"investigators":"Lea, D.W.; Martin, P.A.; Pak, D.K.; Spero, H.J.","mostRecentYearBP":1000,"mostRecentYearCE":950,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/2614","originalSource":null,"publication":[{"abstract":"The record of oxygen isotopic variations in foraminifer shells from deep-sea cores preserves a continuous record of ice volume and sea level oscillations. To extract the ice volume record, however, it is necessary to remove the temperature and local hydrological influence on delta18O. We employ the strategy of estimating calcification temperatures from Mg/Ca and removing this signal from an observed delta18O record of planktonic foraminifera from a core on the Cocos Ridge, eastern equatorial Pacific. The residual, delta18Owater, reveals a pattern of changes that appears to be consistent with known ice volume and sea level variations. Over the last four glacial terminations, delta18Owater decreases by 1.2+/-0.1%%. The magnitude of high stands appears to be consistent with modern sea level during MIS 5.5 (5e), 7.1 and 7.5 but somewhat lower during MIS 9.1. The magnitude of low stands is similar (~-120m) for MIS 2.2 (LGM), 6.2, 8.2 and 10.2. The Cocos Ridge record also shows a period of intermediate sea level (~-30m) during MIS 6.5. At present it is not possible to validate these estimates for those periods of time in which coral reef based estimates of sea level are unavailable.","author":null,"citation":"Lea, D.W., P.A. Martin, D.K. Pak, and H.J. Spero. 2002. Reconstructing a 350 ky history of sea level using planktonic Mg/Ca and oxygen isotopic records from a Cocos Ridge core. Quaternary Science Reviews 21(1-3):283-293.","edition":null,"identifier":null,"issue":null,"journal":"Quaternary Science Reviews","pages":null,"pubRank":"1","pubYear":2002,"reportNumber":null,"title":"Reconstructing a 350 ky history of sea level using planktonic Mg/Ca and oxygen isotopic records from a Cocos Ridge core","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Sea Level Reconstruction"],"site":[{"NOAASiteId":"19120","geo":{"geoType":"Feature","geometry":{"coordinates":["2.25","-90.95"],"type":"POINT"},"properties":{"easternmostLongitude":"-90.95","maxElevationMeters":"-2348","minElevationMeters":"-2348","northernmostLatitude":"2.25","southernmostLatitude":"2.25","westernmostLongitude":"-90.95"}},"locationName":"Ocean>Pacific Ocean>North Pacific Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"4301","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>oxygen isotopes","earth science>paleoclimate>paleocean>age control"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/lea2002","linkText":"lea2002","urlDescription":"Original Data and Full Metadata","variables":[]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/tr16319l-tab.txt","linkText":"tr16319l-tab.txt","urlDescription":"Alternate Format Data","variables":[{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>isotope ratio>delta 18O","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"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":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"hydrologic material>sea water","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"meters above modern sea level","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>isotope ratio>delta 18O","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"meter","cvWhat":"earth system variable>hydrographic variable>sea level"},{"cvAdditionalInfo":"meters above modern sea level","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":"meter","cvWhat":"earth system variable>hydrographic variable>sea level"},{"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>benthic foraminifer>calcareous benthic foraminifer>Uvigerina sp.","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"TR16319L","dataTableNotes":"Data precision: O18, ±0.06 per mil,  O18w(est.), ±0.18 per mil; SL(est.), +21, -27 m.  Sea Level Age is based on adjustment of original SPECMAP time scale (Imbrie et al. 1984) by the observed offsets between d18Ocalcite and d18Owater at the terminations, which are: 2.5 ky at Term. I, 5 ky at Term. II, 3 ky at Term. III, and 3.5 ky at Term.","earliestYear":361500,"earliestYearBP":361500,"earliestYearCE":-359550,"mostRecentYear":1000,"mostRecentYearBP":1000,"mostRecentYearCE":950,"species":[],"timeUnit":"cal yr BP"}],"siteName":"TR163-19"}],"studyCode":null,"studyName":"350 KYr Sea Level Reconstruction and Foraminifer Isotope Data","studyNotes":"","version":"1.0","xmlId":"1685"}