{"NOAAStudyId":"1915","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":"2005-07-01","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-1915.xml","doi":null,"earliestYearBP":160,"earliestYearCE":1790,"entryId":"noaa-coral-1915","funding":[],"investigators":"Asami, R.; Yamada, T.; Iryu, Y.; Quinn, T.M.; Meyer, C.P.; Paulay, G.","mostRecentYearBP":-50,"mostRecentYearCE":2000,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/1915","originalSource":null,"publication":[{"abstract":"We present a monthly resolved, 213-year stable isotope time series from a coral from Guam (13\u0001N, 145\u0001E), which is located on the northern edge of the western Pacific warm pool. Oxygen isotopic composition of the coral skeleton (d18Ocoral) shows seasonal, interannual, and decadal variability, which documents significant oceanographic changes related to thermal and hydrologic variations in this region. The d18Ocoral anomaly reflects sea surface temperature (SST) anomaly and sea surface salinity (SSS) anomaly with significant r values of \u00010.69 and 0.49, respectively, which are strongly linked to oceanographic changes that occur during El Nin˜o–Southern Oscillation (ENSO) warm and cool phases. We identified 46 ENSO warm (El Nin˜o) and 53 cool phases (La Nin˜a) in the coral record, which are consistent with those phases reconstructed by Nin˜o 3.4 SST anomaly. Spectral analyses of the d 18Ocoral anomaly record for the years 1790–1999 identified significant peaks around 3 to 7 years. These results indicate that the Guam coral has recorded ENSO periodicity. The d18Ocoral anomaly shows decadal variability of 15- to 45- year periodicity with significant shifts (<0.2%) from warmer to cooler condition and vice versa. An accumulative decrease in d18Ocoral time series may imply 0.75\u0001C warming of SST and 0.23% freshening of seawater d18O, corresponding to a decrease of SSS by 0.85, in the northwestern tropical Pacific over the last 2 centuries.","author":{"name":"Asami, R.; Yamada, T.; Iryu, Y.; Quinn, T.M.; Meyer, C.P.; Paulay, G"},"citation":"Asami, R.; Yamada, T.; Iryu, Y.; Quinn, T.M.; Meyer, C.P.; Paulay, G. 2005. Interannual and decadal variability of the western Pacific sea surface condition for the years 1787-2000. Journal of Geophysical Research: Oceans, 110. doi: 10.1029/2004JC002555","edition":null,"identifier":{"id":"10.1029/2004JC002555","type":"doi","url":"http://dx.doi.org/10.1029/2004JC002555"},"issue":null,"journal":"Journal of Geophysical Research: Oceans","pages":null,"pubRank":"1","pubYear":2005,"reportNumber":null,"title":"Interannual and decadal variability of the western Pacific sea surface condition for the years 1787-2000","type":"publication","volume":"110"}],"reconstruction":"N","scienceKeywords":["PAGES 2k Network","PAGES Australasia 2k"],"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":"2042","coreLengthMeters":0,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/asami2005_noaa.txt","linkText":"asami2005_noaa.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":"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":"GD2","dataTableNotes":null,"earliestYear":1790,"earliestYearBP":160,"earliestYearCE":1790,"mostRecentYear":2000,"mostRecentYearBP":-50,"mostRecentYearCE":2000,"species":[],"timeUnit":"AD"}],"siteName":"Double Reef"}],"studyCode":null,"studyName":"Double Reef - Oxygen Isotope Data","studyNotes":"","version":"1.0","xmlId":"1162"}