{"NOAAStudyId":"1884","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":"2004-07-01","dataPublisher":"NOAA","dataType":"CORALS AND SCLEROSPONGES","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/coral-sclerosponge","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-coral-1884.xml","doi":null,"earliestYearBP":349964,"earliestYearCE":-348014,"entryId":"noaa-coral-1884","funding":[],"investigators":"Kilbourne, K.H.; Quinn, T.M.; Taylor, F.W.","mostRecentYearBP":349950,"mostRecentYearCE":-348000,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/1884","originalSource":null,"publication":[{"abstract":"The nature of tropical climate variability ~350 ka is addressed using d18O and Sr/Ca records from a modern and a fossil coral from Vanuatu (southwestern tropical Pacific Ocean). Modern El Niņo events at Vanuatu produce positive coral d18O and Sr/Ca anomalies; similar anomalies observed in the fossil coral records suggest that El Niņo was operative 350 kyr ago. Seasonal variations in coral Sr/Ca, a sea surface temperature (SST) proxy, have the same amplitude in both corals, whereas seasonal d18O variations are smaller in the fossil coral than in the modern coral. This is consistent with displacement of the South Pacific Convergence Zone toward the southwest during the boreal summer ~350 ka. Mathematical modeling results preclude warmer SST and higher SSS at Vanuatu during this time, but permit the surface ocean to be ~2°C cooler and 0ŋ2 psu fresher than today. Assessing the potential of variations in late Quaternary seawater Sr/Ca remains the largest obstacle to accurately reconstructing tropical SST using pristine fossil corals.","author":null,"citation":"Kilbourne, K.H., T.M. Quinn, and F.W. Taylor. 2004. A fossil coral perspective on western tropical Pacific climate ~350 ka. Paleoceanography 19(1):PA1019.","edition":null,"identifier":null,"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":2004,"reportNumber":null,"title":"A fossil coral perspective on western tropical Pacific climate ~350 ka","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"1929","geo":{"geoType":"Feature","geometry":{"coordinates":["-16.02","166.68"],"type":"POINT"},"properties":{"easternmostLongitude":"166.68","maxElevationMeters":"-1066","minElevationMeters":"-1066","northernmostLatitude":"-16.02","southernmostLatitude":"-16.02","westernmostLongitude":"166.68"}},"locationName":"Ocean>Pacific Ocean>South Pacific Ocean>Melanesia>Vanuatu","mappable":"Y","paleoData":[{"NOAADataTableId":"1991","coreLengthMeters":0,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>carbon isotopes","earth science>paleoclimate>corals and sclerosponges>oxygen isotopes","earth science>paleoclimate>corals and sclerosponges>trace metals"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/bougainville_guyot2004.txt","linkText":"bougainville_guyot2004.txt","urlDescription":"Coral","variables":[{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"inductively-coupled plasma atomic emission spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"millimole per mole","cvWhat":"chemical composition>element or compound ratio>strontium/calcium"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"inductively-coupled plasma atomic emission spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"millimole per mole","cvWhat":"chemical composition>element or compound ratio>magnesium/calcium"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"inductively-coupled plasma atomic emission spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"millimole per mole","cvWhat":"chemical composition>element or compound ratio>strontium/calcium"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"inductively-coupled plasma atomic emission spectroscopy","cvSeasonality":null,"cvShortName":null,"cvUnit":"millimole per mole","cvWhat":"chemical composition>element or compound ratio>magnesium/calcium"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 13C"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 13C"}]}],"dataTableName":"ODP831B","dataTableNotes":null,"earliestYear":-348014,"earliestYearBP":349964,"earliestYearCE":-348014,"mostRecentYear":-348000,"mostRecentYearBP":349950,"mostRecentYearCE":-348000,"species":[],"timeUnit":"AD"}],"siteName":"Bougainville Guyot"}],"studyCode":null,"studyName":"Bougainville Guyot - 350 KYrBP Fossil Coral Sr/Ca, Mg/Ca, and Stable Isotope Data","studyNotes":null,"version":"1.0","xmlId":"1132"}