{"xmlId":"14274","NOAAStudyId":"16557","studyName":"Nelly Bay, Magnetic Island, Australia Mid-Holocene and Modern Coral Luminescence Data and Burdekin River Flow Reconstruction","doi":"https://doi.org/10.25921/brfb-ry52","uuid":"7275c3e3-870f-4927-ba2d-34575de140cb","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"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."},"dataType":"CORALS AND SCLEROSPONGES","investigators":"Lough, J.M.; Llewellyn, L.E.; Lewis, S.E.; Turney, C.S.M.; Palmer, J.G.; Cook, C.G.; Hogg, A.G.","investigatorDetails":[{"firstName":"Janice","lastName":"Lough","initials":"J.M.","orcId":"0000-0002-3789-1009"},{"firstName":"Lyndon","lastName":"Llewellyn","initials":"L.E.","orcId":"0000-0003-1680-1796"},{"firstName":"Stephen","lastName":"Lewis","initials":"S.E.","orcId":"0000-0002-6929-6626"},{"firstName":"Chris","lastName":"Turney","initials":"C.S.M.","orcId":"0000-0001-6733-0993"},{"firstName":"Jonathan","lastName":"Palmer","initials":"J.G.","orcId":"0000-0002-6665-4483"},{"firstName":null,"lastName":"Cook","initials":"C.G.","orcId":null},{"firstName":"Alan","lastName":"Hogg","initials":"A.G.","orcId":"0000-0002-4001-9027"}],"version":"1.0","funding":[{"fundingAgency":"Australian Research Council (ARC)","fundingGrant":"FL100100195"},{"fundingAgency":"Australian Institute of Marine Science","fundingGrant":null}],"studyNotes":"Radiocarbon dating of contiguous decadal-length segments through NEL03D and NEL07B provided an absolutely dated chronology with a calendar age that spans 6223 to 6098 yr BP. This appears to have been followed by a 60-year gap with NEL01D dated to 6038 to 5918 yr BP. Based on this dating, we assigned Year 0 to the last dated year at the outer edge of NEL01D (i.e. 5918 yr BP). Allowing for the 60-year gap, the youngest year of NEL07B was assigned Year 188 and the oldest year of NEL03D was assigned Year 313. Cross-dating of cores also showed that NEL07 died 44 years after NEL03. Thus, we obtained four time series of coral luminescence from two colonies (NEL03 and NEL07) which could be precisely related to each other and overlapped for 61 years (Years 294 to 234) and a single time series from colony NEL01 for Years 128 to 0.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/16557","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-coral-16557.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-coral-16557.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/coral-sclerosponge","studyCode":null,"scienceKeywords":["Streamflow Reconstruction","ENSO"],"reconstruction":"Y","contributionDate":"2014-06-06","entryId":"noaa-coral-16557","earliestYearBP":6223,"mostRecentYearBP":-63,"earliestYearCE":-4273,"mostRecentYearCE":2013,"publication":[{"author":{"name":"Lough, J.M., L.E. Llewellyn, S.E. Lewis, C.S.M. Turney, J.G. Palmer, C.G. Cook and A.G. Hogg"},"pubYear":2014,"title":"Evidence for suppressed mid-Holocene northeastern Australian monsoon variability from coral luminescence","journal":"Paleoceanography","volume":"29","edition":null,"issue":"6","pages":"581-594","reportNumber":null,"citation":"Lough, J.M., L.E. Llewellyn, S.E. Lewis, C.S.M. Turney, J.G. Palmer, C.G. Cook and A.G. Hogg. 2014. Evidence for suppressed mid-Holocene northeastern Australian monsoon variability from coral luminescence. Paleoceanography, 29(6), 581-594. doi: 10.1002/2014PA002630","type":"publication","identifier":{"type":"doi","id":"10.1002/2014PA002630","url":"http://dx.doi.org/10.1002/2014PA002630"},"abstract":"Summer monsoon rainfall in northeastern (NE) Australia exhibits substantial inter-annual variability resulting in highly variable river flows. The occurrence and magnitude of these seasonal river flows are reliably recorded in modern inshore corals as luminescent lines. Here we present reconstructed annual river flows for two ~120-year mid-Holocene windows based on luminescence measurements from five cores obtained from three separate coral colonies. We were able to cross-date the luminescence signatures in four cores from two of the colonies, providing confidence in the derived reconstruction. Present day NE Australian rainfall and river flow are sensitive to El Niņo-Southern Oscillation (ENSO) variability, with La Niņa (El Niņo) events typically associated with wetter (drier) monsoon seasons. Thus, our replicated and annually-resolved coral records provide valuable insights into the northern Australian summer monsoon and ENSO variability at a key period (6?ka) when greenhouse gas levels and ice sheet cover were comparable to the pre-industrial period but orbital forcing was different. Average modern and mid-Holocene growth characteristics were very similar, suggesting that sea surface temperatures off NE Australia at 6ky were also close to present values. The reconstructed river flow record suggests, however, that the mid-Holocene Australian summer monsoon was weaker, less variable from year-to-year (possibly indicative of reduced ENSO variability) and characterised by more within-season flood pulses than present. In contrast to today, the delivery of moisture appears to have been dominated by eastward propagating convective coupled waves associated with the Madden-Julian Oscillation.","pubRank":"1"}],"site":[{"NOAASiteId":"55950","siteName":"Nelly Bay, Magnetic Island","siteCode":null,"mappable":"Y","locationName":"Continent>Australia/New Zealand>Australia>Queensland","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["-19.2","146.9"]},"properties":{"southernmostLatitude":"-19.2","northernmostLatitude":"-19.2","westernmostLongitude":"146.9","easternmostLongitude":"146.9","minElevationMeters":"-4","maxElevationMeters":"-4"}},"paleoData":[{"dataTableName":"NEL01D Luminescence L14","NOAADataTableId":"26718","earliestYear":6038,"mostRecentYear":5918,"timeUnit":"cal yr BP","earliestYearBP":6038,"mostRecentYearBP":5918,"earliestYearCE":-4088,"mostRecentYearCE":-3968,"coreLengthMeters":null,"dataTableNotes":"Year 0 is the last dateable year at the outer- most (youngest) surface of NEL01D which was ~2cm from the colony surface. There is a 7 year gap in the NEL01D record (Years 68 to 74) associated with a growth hiatus-the length of the gap was determined from an adjacent core. Allowing for the 60 year gap identified by radiocarbon dating (section 3.1), years for cores from NEL03 and NEL07 are dated relative to Year 0 of NEL01D.","species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/coral/west_pacific/lough2014/lough2014-nel01d-noaa.txt","urlDescription":"NOAA Template File","linkText":"NEL01D Luminescence Data","variables":[{"cvDataType":"CORALS AND SCLEROSPONGES","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>duration unit>calendar year","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"assigned year number","cvFormat":"Numeric","cvShortName":"yr_assign"},{"cvDataType":"CORALS AND SCLEROSPONGES","cvWhat":"electromagnetic property>luminescence","cvMaterial":"biological material>organism>coral>Porites sp.","cvError":null,"cvUnit":"dimensionless","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>spectroscopy>luminescence spectroscopy","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"lumin"}],"NOAAKeywords":["earth science>paleoclimate>corals and sclerosponges>physical properties"]}]},{"dataTableName":"NEL03A Luminescence L14","NOAADataTableId":"26719","earliestYear":6208,"mostRecentYear":6142,"timeUnit":"cal yr BP","earliestYearBP":6208,"mostRecentYearBP":6142,"earliestYearCE":-4258,"mostRecentYearCE":-4192,"coreLengthMeters":null,"dataTableNotes":"Year 0 is the last dateable year at the outer- most (youngest) surface of NEL01D which was ~2cm from the colony surface. 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