{"NOAAStudyId":"1898","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-1898.xml","doi":null,"earliestYearBP":-30,"earliestYearCE":1980,"entryId":"noaa-coral-1898","funding":[],"investigators":"Asami, R.; Yamada, T.; Iryu, Y.; Meyer, C.P.; Quinn, T.M.; Paulay, G.","mostRecentYearBP":-50,"mostRecentYearCE":2000,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/1898","originalSource":null,"publication":[{"abstract":"We examine the high-resolution (~32 samples/year) carbon and oxygen isotopic composition (d13Ccoral and d18Ocoral) in a coral core (Porites lobata) from Double Reef, Guam over the years 1980ŋ2000. The d13Ccoral shows clear seasonal variations with mean seasonal amplitude of 1.89 per mil, which roughly corresponds with seasonal variations in solar radiation. The seasonal amplitude of d18Ocoral variations are small (0.23ŋ0.57 per mil), but they are significantly correlated with sea surface temperature (SST) and salinity (SSS). The d18Ocoral and SST are more strongly correlated during El Niņo/Southern Oscillation (ENSO) warm phases (r=-0.81, p<0.01) than during non-ENSO phases (r=-0.65, p<0.01) and ENSO cool phases (r=-0.48, p<0.01). These different relationships are due to differences in winter SST and in seawater d18O (d18Osw) during ENSO warm phases (<27 °C and higher values of d18Osw) compared with cool phases (>28 °C and lower values of d18Osw) at Guam. These differences in oceanic parameters result from movements of the Western Pacific Warm Pool (WPWP) during the different phases of ENSO. Anomalies in d18Osw, inferred from the d18Ocoral and instrumental SST, are consistent with SSS anomalies for the years 1980ŋ2000. These d18Osw anomalies may reflect changes in SSS and evaporationŋprecipitation due to movements of the WPWP. This detailed analysis of a coral from Guam suggests that it may contain an excellent archive of past ENSO events.","author":null,"citation":"Asami, R., T. Yamada, Y. Iryu, C.P. Meyer, T.M. Quinn, and G. Paulay. 2004. Carbon and oxygen isotopic composition of a Guam coral and their relationships to environmental variables in the western Pacific. Palaeogeography, Palaeoclimatology, Palaeoecology 212:1-22.","edition":null,"identifier":null,"issue":null,"journal":"Palaeogeography, Palaeoclimatology, Palaeoecology","pages":null,"pubRank":"1","pubYear":2004,"reportNumber":null,"title":"Carbon and oxygen isotopic composition of a Guam coral and their relationships to environmental variables in the western Pacific","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"1946","geo":{"geoType":"Feature","geometry":{"coordinates":["13.598183","144.83588"],"type":"POINT"},"properties":{"easternmostLongitude":"144.83588","maxElevationMeters":"-5","minElevationMeters":"-5","northernmostLatitude":"13.598183","southernmostLatitude":"13.598183","westernmostLongitude":"144.83588"}},"locationName":"Ocean>Pacific Ocean>Central Pacific Ocean>Guam","mappable":"Y","paleoData":[{"NOAADataTableId":"2008","coreLengthMeters":0,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>oxygen isotopes","earth science>paleoclimate>corals and sclerosponges>carbon isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/guam2004.txt","linkText":"guam2004.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":"millimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"raw","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"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"raw","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 13C"}]}],"dataTableName":"Double Reef Core 001","dataTableNotes":null,"earliestYear":1980,"earliestYearBP":-30,"earliestYearCE":1980,"mostRecentYear":2000,"mostRecentYearBP":-50,"mostRecentYearCE":2000,"species":[],"timeUnit":"AD"}],"siteName":"Double Reef"}],"studyCode":null,"studyName":"Double Reef - Stable Isotope Data","studyNotes":null,"version":"1.0","xmlId":"1146"}