{"NOAAStudyId":"1879","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":"2003-07-01","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-1879.xml","doi":null,"earliestYearBP":28,"earliestYearCE":1922,"entryId":"noaa-coral-1879","funding":[],"investigators":"Grottoli, A.G.; Gille, S.T.; Druffel, E.R.M.; Dunbar, R.B.","mostRecentYearBP":-6,"mostRecentYearCE":1956,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/1879","originalSource":null,"publication":[{"abstract":"Coral skeletal radiocarbon records reflect seawater d14C and are useful for reconstructing the history of water mass movement and ventilation in the tropical oceans.  Here, we reconstructed the inter-annual variability in central equatorial Pacific surface water d14C from 1922-1956 using near-monthly radiocarbon measurements in a Porites sp. coral skeleton (FI5A) from the windward side of Fanning Island (3 deg 54'32\"\"N, 159 deg 18'88\"\"W).  The most pronounced feature in this record is a large positive shift in d14C between 1947 and 1956 that coincides with the switch of the Pacific Decadal Oscillation (PDO) from a positive to a negative phase in the mid-1940s.  Although the absolute d14C values from 1950 - 1955 in FI5A differ from the d14C values of another coral core collected from the opposite side of the island, both records show a large positive shift in their d14C records at that time.  The relative increase in d14C of each record is consistent with the premise that a common mechanism is controlling the d14C records within each coral record.  Overall, the Fanning d14C data support the notion that a significant amount of subtropical seawater is arriving at the equator but does not allow us to determine the mechanism for its transport.","author":null,"citation":"Grottoli, A.G., S.T. Gille, E.R.M. Druffel, and R.B. Dunbar. 2003. Decadal timescale shift in the 14C record of a central equatorial Pacific coral. Radiocarbon 45(1):91-99.","edition":null,"identifier":null,"issue":null,"journal":"Radiocarbon","pages":null,"pubRank":"1","pubYear":2003,"reportNumber":null,"title":"Decadal timescale shift in the 14C record of a central equatorial Pacific coral","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"1839","geo":{"geoType":"Feature","geometry":{"coordinates":["3.9","-159.2"],"type":"POINT"},"properties":{"easternmostLongitude":"-159.2","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"3.9","southernmostLatitude":"3.9","westernmostLongitude":"-159.2"}},"locationName":"Ocean>Pacific Ocean>Central Pacific Ocean>Kiribati","mappable":"Y","paleoData":[{"NOAADataTableId":"1982","coreLengthMeters":0,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>carbon isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/east_pacific/fanning_2003.txt","linkText":"fanning_2003.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":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.","cvMethod":"accelerator mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil NBS oxalic acid","cvWhat":"chemical composition>isotope>isotope ratio>Delta 14C"}]}],"dataTableName":"FI5A","dataTableNotes":null,"earliestYear":1922,"earliestYearBP":28,"earliestYearCE":1922,"mostRecentYear":1956,"mostRecentYearBP":-6,"mostRecentYearCE":1956,"species":[],"timeUnit":"AD"}],"siteName":"Fanning Island"}],"studyCode":null,"studyName":"Fanning Island - Coral Radiocarbon Data","studyNotes":null,"version":"1.0","xmlId":"1127"}