{"NOAAStudyId":"1887","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":"2002-07-01","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-1887.xml","doi":null,"earliestYearBP":65,"earliestYearCE":1885,"entryId":"noaa-coral-1887","funding":[],"investigators":"Swart, P.K.; Torrold, S.; Esienhauer, A.; Rosenheim, B.; Harrison, C.G.A.; Grammer, M.; Latkoczy, C.","mostRecentYearBP":-42,"mostRecentYearCE":1992,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/1887","originalSource":null,"publication":[{"abstract":"This paper presents data to support the presence of (i) intra-annual signals in the chemical composition of the skeletons of sclerosponges from the Bahamas, and (ii) variable rates of skeletal accretion. These conclusions are based on data obtained by using a microsampling method for the stable oxygen and carbon isotopes in which material was extracted at a resolution of one sample every 32 mm and a laser microprobe which obtained trace element data every 20 mm (Sr, Mg, and Pb). An age model was established using a combination of U-Th dating, changes in the concentration of Pb, and the change in the d13C of the skeleton of the sclerosponges. These methods yield a mean growth rate of 220 mm/yr, but suggest that the growth rate in this particular sclerosponge was in fact not constant and varied between 100 and 400 mm/yr. The variable growth rate was confirmed through spectral analysis of the d18O and Sr/Ca data that showed peaks corresponding to the annual cycle in these parameters as well as peaks corresponding to growth rates of approximately 128, 212, 270, and 400 mm/yr. The presence of these additional frequencies suggests a growth rate between approximately 100 and 400  mm/yr. These conclusions were supported by modeling of oxygen isotopic data measured on a scleractinian coral as well as model isotope data generated on synthetic time series. These findings have important implications for the use of sclerosponges as proxies of paleoclimate, because they emphasize the need for a precise yearly chronology in order that proxy data can be compared  with climatic variables such as the North Atlantic Oscillation or the Atlantic Multidecadal Oscillation.","author":null,"citation":"Swart, P.K., S. Torrold, A. Esienhauer, B. Rosenheim, C.G.A. Harrison, M. Grammer, and C. Latkoczy. 2002. Intra-annual variation in the stable oxygen and carbon and trace element composition of sclerosponges. Paleoceanography 17(3):1045.","edition":null,"identifier":null,"issue":null,"journal":"Paleoceanography","pages":null,"pubRank":"1","pubYear":2002,"reportNumber":null,"title":"Intra-annual variation in the stable oxygen and carbon and trace element composition of sclerosponges","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"1932","geo":{"geoType":"Feature","geometry":{"coordinates":["23.92","-76.83"],"type":"POINT"},"properties":{"easternmostLongitude":"-76.83","maxElevationMeters":"-146","minElevationMeters":"-146","northernmostLatitude":"23.92","southernmostLatitude":"23.92","westernmostLongitude":"-76.83"}},"locationName":"Ocean>Atlantic Ocean>North Atlantic Ocean>Caribbean Sea>Bahamas","mappable":"Y","paleoData":[{"NOAADataTableId":"1994","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/atlantic/bahamas-sclerosponge-2002.txt","linkText":"bahamas-sclerosponge-2002.txt","urlDescription":"Sclerosponge","variables":[{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":null,"cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>sponge>sclerosponge>Ceratoporella sp.>Ceratoporella nicholsoni","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":"annual","cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 13C"},{"cvAdditionalInfo":null,"cvDataType":"CORALS AND SCLEROSPONGES","cvDetail":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>sponge>sclerosponge>Ceratoporella sp.>Ceratoporella nicholsoni","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":"annual","cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"Tongue of the Ocean Core 001","dataTableNotes":null,"earliestYear":1885,"earliestYearBP":65,"earliestYearCE":1885,"mostRecentYear":1992,"mostRecentYearBP":-42,"mostRecentYearCE":1992,"species":[],"timeUnit":"AD"}],"siteName":"Tongue of the Ocean"}],"studyCode":null,"studyName":"Tongue of the Ocean - Sclerosponge Stable Isotope Data","studyNotes":null,"version":"1.0","xmlId":"1135"}