{"NOAAStudyId":"13378","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":"2012-10-10","dataPublisher":"NOAA","dataType":"PALEOCEANOGRAPHY","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/paleoceanography","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-13378.xml","doi":null,"earliestYearBP":14759,"earliestYearCE":-12809,"entryId":"noaa-ocean-13378","funding":[{"fundingAgency":"US NOAA","fundingGrant":null}],"investigators":"Tierney, J.E.; Oppo, D.W.; LeGrande, A.N.; Huang, Y.; Rosenthal, Y.; Linsley, B.K.","mostRecentYearBP":60,"mostRecentYearCE":1890,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/13378","originalSource":null,"publication":[{"abstract":"Existing paleoclimate data suggest a complex evolution of hydroclimate \r\nwithin the Indo-Pacific Warm Pool (IPWP) during the Holocene epoch. \r\nHere we introduce a new leaf wax isotope record from Sulawesi, \r\nIndonesia and compare proxy water isotope data with ocean-atmosphere \r\ngeneral circulation model (OAGCM) simulations to identify mechanisms \r\ninfluencing Holocene IPWP hydroclimate. Modeling simulations suggest \r\nthat orbital forcing causes heterogenous changes in precipitation \r\nacross the IPWP on a seasonal basis that may account for the \r\ndifferences in time-evolution of the proxy data at respective sites. \r\nBoth the proxies and simulations suggest that precipitation \r\nvariability during the September-November (SON) season is important \r\nfor hydroclimate in Borneo. The preëminence of the SON season suggests \r\nthat a seasonally lagged relationship between the Indian monsoon \r\nand Indian Ocean Walker circulation influences IPWP hydroclimatic \r\nvariability during the Holocene. \r\n","author":null,"citation":"Tierney, J.E., D.W. Oppo, A.N. LeGrande, Y. Huang, Y. Rosenthal, \r\nand B.K. Linsley. 2012. \r\nThe influence of Indian Ocean atmospheric circulation on Warm Pool \r\nhydroclimate during the Holocene epoch. \r\nJournal of Geophysical Research-Atmospheres, 117(D19), D19108. \r\ndoi:10.1029/2012JD018060","edition":null,"identifier":{"id":"10.1029/2012JD018060","type":"doi","url":"http://dx.doi.org/10.1029/2012JD018060"},"issue":null,"journal":"Journal of Geophysical Research: Atmospheres","pages":null,"pubRank":"1","pubYear":2012,"reportNumber":null,"title":"The influence of Indian Ocean atmospheric circulation on Warm Pool  hydroclimate during the Holocene epoch","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["Warm Pool"],"site":[{"NOAASiteId":"54100","geo":{"geoType":"Feature","geometry":{"coordinates":["-3.566","119.383"],"type":"POINT"},"properties":{"easternmostLongitude":"119.383","maxElevationMeters":"-482","minElevationMeters":"-482","northernmostLatitude":"-3.566","southernmostLatitude":"-3.566","westernmostLongitude":"119.383"}},"locationName":"Ocean>Indian Ocean>Indonesia","mappable":"Y","paleoData":[{"NOAADataTableId":"23080","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>biomarkers"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/tierney2012/tierney2012.txt","linkText":"tierney2012.txt","urlDescription":"Original Data and Full Metadata","variables":[{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"centimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":"C 30 fatty acid; leaf wax interpretation","cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"chemical composition>compound>organic compound>organooxygen compound>fatty acid>n-alkanoic acid>C30 n-alkanoic acid","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil","cvWhat":"chemical composition>isotope>isotope ratio>delta 2H"},{"cvAdditionalInfo":"C 30 fatty acid; ice-volume corrected; leaf wax interpretation","cvDataType":"PALEOCEANOGRAPHY","cvDetail":"corrected","cvError":null,"cvFormat":"Numeric","cvMaterial":"chemical composition>compound>organic compound>organooxygen compound>fatty acid>n-alkanoic acid>C30 n-alkanoic acid","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil","cvWhat":"chemical composition>isotope>isotope ratio>delta 2H"}]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>biomarkers"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/tierney2012/tierney2012.xls","linkText":"tierney2012.xls","urlDescription":"Original Data and Full Metadata","variables":[]}],"dataTableName":"BJ8-03-70GGC","dataTableNotes":null,"earliestYear":14759,"earliestYearBP":14759,"earliestYearCE":-12809,"mostRecentYear":60,"mostRecentYearBP":60,"mostRecentYearCE":1890,"species":[],"timeUnit":"cal yr BP"}],"siteName":"BJ8-03-70GGC"}],"studyCode":null,"studyName":"Makassar Strait 14,700 Year Leaf Wax Hydrogen Isotope Data","studyNotes":"Hydrogen isotopic (dD) ratios of terrestrial higher plant \nleaf waxes (dDwax, C30 fatty acid) in marine sediments \nfrom southwest Sulawesi, Makassar Strait, Indonesia \nfor the past 14,700 years. \n\nWe measured the hydrogen isotopic composition of leaf waxes (dDwax) \nin marine sediment core BJ8-03-70GGC, located 12 km off the southwest \nshore of Sulawesi in the Makassar Strait. Thirteen radiocarbon dates \nconstrain the depth- age model for core 70GGC. The age model is \nbased on a linear interpolation of the depth-age relationship between \ncalibrated dates with the additional assumption that the top of \nthe core is equivalent to 0 yr BP. Core 70GGC was sampled every \n~100 years downcore, with somewhat higher resolution during the \nmiddle Holocene (near 4 ka) and the Younger Dryas chronozone \n(12.7-11.5 ka). dDwax analyses were conducted as previously \ndescribed in Tierney et al. [2010], Paleoceanography. Briefly, \nfreeze-dried sediments were extracted with a solvent mixture \nof dichloromethane:methanol (9:1,v/v) using an Accelerated Solvent \nExtractor. Leaf waxes were purified from the resulting total lipid \nextract via NH2 column chromatography, methylated with methanol \nof a known isotopic composition, and then further purified via silica \ngel chromatography. The C30 fatty acid was analyzed in triplicate \nfor its hydrogen isotopic composition via gas chromatography-isotope \nratio monitoring-mass spectrometry (GC-IR-MS), using a Thermo Delta \nXL mass spectrometer at Brown University. H2 standard gas calibrated \nto VSMOW was injected three times before and after the sample lipid \npeaks as an internal standard. In addition, an external fatty acid \nmethyl ester (FAME) standard of known isotopic composition was run \nevery nine injections to monitor drift. Isotopic values were \ncorrected for the added methyl group. Results presented here \nare triplicate means, and average triplicate standard error \nwas 0.7‰. \n\nCore BJ8-03-70GGC: 3.566°S, 119.383°E, 482 meters water depth \n\n\n","version":"1.0","xmlId":"11419"}