{"NOAAStudyId":"17380","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":"2014-10-31","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-17380.xml","doi":null,"earliestYearBP":76,"earliestYearCE":1874,"entryId":"noaa-coral-17380","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"SGER ATM9409368"}],"investigators":"Wu, H.C.; Moreau, M.; Linsley, B.K.; Schrag, D.P.; Corrège, T.","mostRecentYearBP":-43,"mostRecentYearCE":1993,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/17380","originalSource":null,"publication":[{"abstract":"Sub-seasonally resolved and replicated coral Sr/Ca time series at Clipperton Atoll (10°18'N, 109°13'W) in the eastern Pacific are assessed as a sea surface temperature (SST) proxy in this region with small seasonal SST variability. The composite coral Sr/Ca time series is a partially replicated record of three live and one sub- modern colony of Porites lobata extending back to 1874. Large inter-colony coral Sr/Ca offsets equate to relative SST differences of 0.6 to 4.3 °C and limit the ability to reconstruct absolute SST changes. Moreover, the replication method revealed a 12-year section of growth in one colony where mean Sr/Ca was anomalously low (~1 °C higher SST) relative to the other colonies without evidence of diagenesis or other significant skeletal alterations. The presence of this anomalous interval supports the need for multi-coral Sr/Ca replication in specific sites or re- gions. The Clipperton Composite Sr/Ca anomaly record is significantly coherent (r = 0.71–0.76, p b 0.001) with gridded instrumental SSTs but with larger amplitude decadal variance that appears to more accurately represent actual SST variability at Clipperton. The amplitude of the secular warming trend during the last century at Clipperton is 0.3 to 0.6 °C larger (~twice as large) than the trend in the poorly “ground-truthed” instrumental SST records for the region. The interannual and decadal variability in Clipperton coral Sr/Ca demonstrates strong coherence to the Pacific Decadal Oscillation and the El Nino/Southern Oscillation (ENSO) with reduced ENSO variability from 1920 to late 1930s and enhanced variability in the late twentieth century.","author":{"name":"Wu, H.C., M. Moreau, B.K. Linsley, D.P. Schrag, and T. Corrège"},"citation":"Wu, H.C., M. Moreau, B.K. Linsley, D.P. Schrag, and T. Corrège. 2014. Investigation of sea surface temperature changes from replicated coral Sr/Ca variations in the eastern equatorial Pacific (Clipperton Atoll). Palaeogeography, Palaeoclimatology, Palaeoecology, 412, 208-222. doi: 10.1016/j.palaeo.2014.07.039","edition":null,"identifier":{"id":"10.1016/j.palaeo.2014.07.039","type":"doi","url":"http://dx.doi.org/10.1016/j.palaeo.2014.07.039"},"issue":null,"journal":"Palaeogeography, Palaeoclimatology, Palaeoecology","pages":"208-222","pubRank":"1","pubYear":2014,"reportNumber":null,"title":"Investigation of sea surface temperature changes from replicated coral Sr/Ca variations in the eastern equatorial Pacific (Clipperton Atoll)","type":"publication","volume":"412"}],"reconstruction":"N","scienceKeywords":["ENSO"],"site":[{"NOAASiteId":"1851","geo":{"geoType":"Feature","geometry":{"coordinates":["10.3","-109.22"],"type":"POINT"},"properties":{"easternmostLongitude":"-109.22","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"10.3","southernmostLatitude":"10.3","westernmostLongitude":"-109.22"}},"locationName":"Ocean>Pacific Ocean>South Pacific Ocean>Polynesia>French Polynesia","mappable":"Y","paleoData":[{"NOAADataTableId":"27656","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["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/east_pacific/wu2014/wu2014-f1b.txt","linkText":"F1B Sr/Ca and d18O Data","urlDescription":"Formatted Text File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.>Porites lobata","cvMethod":"inductively-coupled plasma mass spectrometry","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.>Porites lobata","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"Clipperton F1B Sr/Ca Isotopes Wu14","dataTableNotes":null,"earliestYear":1874,"earliestYearBP":76,"earliestYearCE":1874,"mostRecentYear":1956,"mostRecentYearBP":-6,"mostRecentYearCE":1956,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"27657","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>trace metals"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/wu2014/wu2014-2b.txt","linkText":"2B Sr/Ca Data","urlDescription":"Formatted Text File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.>Porites lobata","cvMethod":"inductively-coupled plasma mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"millimole per mole","cvWhat":"chemical composition>element or compound ratio>strontium/calcium"}]}],"dataTableName":"Clipperton 2B Sr/Ca Wu14","dataTableNotes":null,"earliestYear":1934,"earliestYearBP":16,"earliestYearCE":1934,"mostRecentYear":1993,"mostRecentYearBP":-43,"mostRecentYearCE":1993,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"27658","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>trace metals"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/wu2014/wu2014-4b.txt","linkText":"4B Sr/Ca Data","urlDescription":"Formatted Text File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.>Porites lobata","cvMethod":"inductively-coupled plasma mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"millimole per mole","cvWhat":"chemical composition>element or compound ratio>strontium/calcium"}]}],"dataTableName":"Clipperton 4B Sr/Ca Wu14","dataTableNotes":null,"earliestYear":1894,"earliestYearBP":56,"earliestYearCE":1894,"mostRecentYear":1993,"mostRecentYearBP":-43,"mostRecentYearCE":1993,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"27659","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>trace metals"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/wu2014/wu2014-6a.txt","linkText":"6A Sr/Ca Data","urlDescription":"Formatted Text File","variables":[{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"interpolated","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.>Porites lobata","cvMethod":"inductively-coupled plasma mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"millimole per mole","cvWhat":"chemical composition>element or compound ratio>strontium/calcium"}]}],"dataTableName":"Clipperton 6A Sr/Ca Wu14","dataTableNotes":null,"earliestYear":1941,"earliestYearBP":9,"earliestYearCE":1941,"mostRecentYear":1993,"mostRecentYearBP":-43,"mostRecentYearCE":1993,"species":[],"timeUnit":"AD"}],"siteName":"Clipperton Atoll"}],"studyCode":null,"studyName":"Clipperton Atoll 1874-1994 Sr/Ca and Oxygen Isotope Data","studyNotes":"Monthly data from Porites lobata.","version":"1.0","xmlId":"15064"}