{"NOAAStudyId":"11193","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":"2011-05-14","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-11193.xml","doi":null,"earliestYearBP":131400,"earliestYearCE":-129450,"entryId":"noaa-ocean-11193","funding":[{"fundingAgency":"Bundesministerium für Bildung und Forschung","fundingGrant":"PABESIA"}],"investigators":"Mohtadi, M.; Lückge, A.; Steinke, S.; Groeneveld, J.; Hebbeln, D.; Westphal, N.","mostRecentYearBP":0,"mostRecentYearCE":1950,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/11193","originalSource":null,"publication":[{"abstract":"Surface and thermocline conditions of the eastern tropical \r\nIndian Ocean were reconstructed through the past glacial- \r\ninterglacial cycle by using Mg/Ca and alkenone-paleothermometry, \r\nstable oxygen isotopes of calcite and seawater, and terrigenous \r\nfraction performed on sediment core GeoB 10038-4 off SW Sumatra \r\n(~6°S, 103°E, 1819 m water depth). Results show that annual mean \r\nsurface and thermocline temperatures varied differently and \r\nindependently, and suggest that surface temperatures have been \r\nresponding to southern high-latitude climate, whereas the more \r\nvariable thermocline temperatures were remotely controlled by \r\nchanges in the thermocline temperatures of the North Indian Ocean. \r\nExcept for glacial terminations, salinity proxies indicate that \r\nchanging intensities of the boreal summer monsoon did not \r\nconsiderably affect annual mean conditions off Sumatra during \r\nthe past 133,000 years. Our results do not show a glacial- \r\ninterglacial pattern in the thermocline conditions and reject \r\na linear response of the tropical Indian Ocean thermocline to \r\nmid- and high-latitude climate change.  Alkenone-based surface \r\ntemperature estimates varied in line with the terrigenous \r\nfraction of the sediment and the East Asian winter monsoon \r\nproxy records at the precession band suggestive of monsoon \r\n(sea level) to be the dominant control on alkenone temperatures \r\nin the eastern tropical Indian Ocean on sub-orbital (glacial- \r\ninterglacial) timescales. ","author":null,"citation":"Mohtadi, M., A. Lückge, S. Steinke, J. Groeneveld, D. Hebbeln, \r\nand N. Westphal. 2010. \r\nLate Pleistocene surface and thermocline conditions \r\nof the eastern tropical Indian Ocean. \r\nQuaternary Science Reviews, Vol. 29, Issues 7-8, April 2010, \r\npp. 887-896.  doi:10.1016/j.quascirev.2009.12.006 \r\n","edition":null,"identifier":{"id":"10.1016/j.quascirev.2009.12.006","type":"doi","url":"http://dx.doi.org/10.1016/j.quascirev.2009.12.006"},"issue":null,"journal":"Quaternary Science Reviews","pages":null,"pubRank":"1","pubYear":2010,"reportNumber":null,"title":"Late Pleistocene surface and thermocline conditions  of the eastern tropical Indian Ocean","type":"publication","volume":null}],"reconstruction":"Y","scienceKeywords":["Warm Pool","Sea Surface Temperature Reconstruction"],"site":[{"NOAASiteId":"48143","geo":{"geoType":"Feature","geometry":{"coordinates":["-5.9375","103.246"],"type":"POINT"},"properties":{"easternmostLongitude":"103.246","maxElevationMeters":"-1819","minElevationMeters":"-1819","northernmostLatitude":"-5.9375","southernmostLatitude":"-5.9375","westernmostLongitude":"103.246"}},"locationName":"Ocean>Pacific Ocean>Western Pacific Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"19790","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>biomarkers","earth science>paleoclimate>paleocean>oxygen isotopes","earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>geochemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/mohtadi2010b/mohtadi2010b.txt","linkText":"mohtadi2010b.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":"dimensionless","cvWhat":"chemical composition>compound>organic compound>organic compound index>alkenone unsaturation index>alkenone unsaturation index Uk37 prime"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Neogloboquadrina sp.>Neogloboquadrina dutertrei","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Neogloboquadrina sp.>Neogloboquadrina dutertrei","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimole per mole","cvWhat":"chemical composition>element or compound ratio>magnesium/calcium"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>benthic foraminifer>calcareous benthic foraminifer>Cibicidoides sp.>Cibicidoides wuellerstorfi","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"Globigerinoides ruber","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>element or compound ratio>magnesium/calcium","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>sea water temperature>sea surface temperature"},{"cvAdditionalInfo":null,"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>organic compound index>alkenone unsaturation index","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>sea water temperature>sea surface temperature"},{"cvAdditionalInfo":"thermocline temperature from N. dutertrei","cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"reconstruction material>element or compound ratio>magnesium/calcium","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"degree Celsius","cvWhat":"earth system variable>temperature variable>temperature>sea water temperature"},{"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 kiloyear before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Globigerinoides sp.>Globigerinoides ruber","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"PALEOCEANOGRAPHY","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Globigerinoides sp.>Globigerinoides ruber","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimole per mole","cvWhat":"chemical composition>element or compound ratio>magnesium/calcium"}]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>oxygen isotopes","earth science>paleoclimate>paleocean>biomarkers","earth science>paleoclimate>paleocean>geochemistry"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/mohtadi2010b/mohtadi2010b.xls","linkText":"mohtadi2010b.xls","urlDescription":"Original Data and Full Metadata","variables":[]}],"dataTableName":"GeoB10038-4-10b","dataTableNotes":null,"earliestYear":131400,"earliestYearBP":131400,"earliestYearCE":-129450,"mostRecentYear":0,"mostRecentYearBP":0,"mostRecentYearCE":1950,"species":[],"timeUnit":"cal yr BP"}],"siteName":"GeoB10038-4"}],"studyCode":null,"studyName":"Eastern Tropical Indian Ocean 133KYr Ocean Temperature Reconstructions","studyNotes":"Foraminiferal oxygen isotope (d18O) and Mg/Ca data, alkenone (UK'37) \nconcentration data, plus reconstructed surface and thermocline \ntemperatures via Mg/Ca and alkenone calibrations for a Indo-Pacific \nWarm Pool core for the last 133,000 years.  Foraminifer species include \nCibicidoides wuellerstorfi, Globigerinoides ruber (sensu stricto), \nand Neogloboquadrina dutertrei. ","version":"1.0","xmlId":"9617"}