{"NOAAStudyId":"12973","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":"2012-06-05","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-12973.xml","doi":null,"earliestYearBP":8,"earliestYearCE":1942,"entryId":"noaa-coral-12973","funding":[],"investigators":"DeLong, K.L.; Quinn, T.M.; Taylor, F.W.","mostRecentYearBP":-1,"mostRecentYearCE":1951,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/12973","originalSource":null,"publication":[{"abstract":"Coral-based climate reconstructions typically have not used multiple \r\ncores from a region to capture and replicate a climate signal largely \r\nbecause of concerns of coral conservation, analytical expense, \r\nand time constraints. Coral Sr/Ca reproducibility through the twentieth \r\ncentury was investigated using three intracolony and three intercolony \r\ncoral records from the reefs offshore of Amédée Island, New Caledonia. \r\nDifferent sampling resolutions were examined in coral Sr/Ca (fortnightly \r\nand monthly) and d18O (fortnightly, monthly, and seasonally) as well as \r\nsimilar scale subsampling of the daily in situ sea surface temperature \r\n(SST) record. The mean coral Sr/Ca, d18O, and SST values do not change \r\nas a function of sampling resolution. The coral Sr/Ca signal is highly \r\nreproducible; the average absolute offset between coeval monthly Sr/Ca \r\ndeterminations between any two coral time series is 0.035 ± 0.026 \r\nmmol/mol (1s) (~0.65°C), which is less than twice the analytical \r\nprecision of the coral Sr/Ca measurements. The stack average of the \r\nmonthly coral Sr/Ca variations and monthly anomalies are significantly \r\ncorrelated with monthly in situ SST (1967-1992; r = -0.96 and -0.64, \r\nrespectively; p < 0.05; and n = 302) and 1° grid monthly SST data \r\nproduct (1900-1999; r = -0.95 and -0.56, respectively; p < 0.05; \r\nand n = 1198). The coral Sr/Ca-SST reconstruction exhibits interannual \r\nand decadal- timescale fluctuations that exceed those observed in the \r\ngridded SST record, which may reflect true differences between SST \r\nat a shallow reef site and those averaged over a 1° grid box \r\nor inadequacies in the methodology used to create the gridded SST \r\nproduct when few observations are available. A warming trend of \r\n~0.6°C is observed in the twentieth century coral Sr/Ca-SST record. \r\n","author":null,"citation":"DeLong, K.L., T.M. Quinn, and F.W. Taylor. 2007. \r\nReconstructing twentieth-century sea surface temperature variability \r\nin the southwest Pacific: A replication study using multiple coral \r\nSr/Ca records from New Caledonia. \r\nPaleoceanography, 22, PA4212, doi:10.1029/2007PA001444. ","edition":null,"identifier":{"id":"10.1029/2007PA001444","type":"doi","url":"http://dx.doi.org/10.1029/2007PA001444"},"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":2007,"reportNumber":null,"title":"Reconstructing twentieth-century sea surface temperature variability  in the southwest Pacific: A replication study using multiple coral  Sr/Ca records from New Caledonia","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"1848","geo":{"geoType":"Feature","geometry":{"coordinates":["-22.48","166.47"],"type":"POINT"},"properties":{"easternmostLongitude":"166.47","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"-22.48","southernmostLatitude":"-22.48","westernmostLongitude":"166.47"}},"locationName":"Ocean>Pacific Ocean>South Pacific Ocean>Melanesia>New Caledonia","mappable":"Y","paleoData":[{"NOAADataTableId":"22443","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/amedee2007.txt","linkText":"amedee2007.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":"corrected for intercore alignment","cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"corrected","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.>Porites lutea","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.>Porites lutea","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":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>coral>Porites sp.>Porites lutea","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.>Porites lutea","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":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"sampling metadata>sample identification"}]},{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/amedee2007.xls","linkText":"amedee2007.xls","urlDescription":"Coral","variables":[]}],"dataTableName":"Amedee2007","dataTableNotes":null,"earliestYear":1942,"earliestYearBP":8,"earliestYearCE":1942,"mostRecentYear":1951,"mostRecentYearBP":-1,"mostRecentYearCE":1951,"species":[],"timeUnit":"AD"}],"siteName":"Amedee Lighthouse"}],"studyCode":null,"studyName":"New Caledonia Coral Proxy Data Sampling Resolution Comparison ","studyNotes":"Sampling resolution comparison for corals collected at Amédée Island, \nNew Caledonia.  Seasonal, Monthly, and Fortnightly sampling of coral \nSr/Ca, Mg/Ca, d18O, and d13C for 1942-1951 AD. \n\nThe data from the sampling resolution comparison (~seasonal, \n~monthly, and ~fortnightly) between parallel paths presented \nin Figure 3 of DeLong et al. 2007. Note: the reminder of the data \npresented in the study of DeLong et al., 2007 is available in another \ncontribution and cited as DeLong et al., 2012. The coral section, \n92-PAA1-B, was originally sampled at 0.28 cm per sample (seasonally) \nby Quinn et al. 1998. The study of DeLong et al. 2007 sampled the coral \nslab on either side of the Quinn et al. 1998 path (<0.5 cm) with \nincreasing resolution: 0.0692 cm per sample (monthly) and 0.030 cm \nper sample (fortnightly) down the core. Refer to figure 2 in \nDeLong et al. (2007) for sampling path location on the core, \nwhich is 1942 to 1951 AD. Coral samples were analyzed for d18O, \nd13C, Sr/Ca, and Mg/Ca with an analytical precision (1S) of ±0.06‰, \n±0.04‰, ±0.017 mmol mol-1, and ±0.024 mmol mol-1, respectively. \nNote: these Mg/Ca data were not shown or discussed in \nDeLong et al. 2007; however, these data are provided here \nfor completeness. For Figure 3 in DeLong et al. (2007), \nthe fortnightly Sr/Ca depth was adjusted to align with monthly \nSr/ Ca variations, and depth adjustments were applied to other \ngeochemical records; these adjustments are shown in columns labeled \n\"Aligned depth (cm).\" The same method of adjustments was applied to \nthe seasonal records using monthly d18O depth. Comparisons are based \non depths common to all resolutions (gray rectangle). Mean coral \nSr/Ca, d18O, and d13C values do not change significantly as a function \nof sampling resolution; however, the averages of the summer and winter \namplitudes determined for each sampling resolution reveal a decrease \nin seasonal cycle with decreasing sampling resolution. \n\nAmédée Island, New Caledonia:  22°28.5'S, 166°28'E, water depth 3 m.\n","version":"1.0","xmlId":"11015"}