{"NOAAStudyId":"26210","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":"2019-02-14","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-26210.xml","doi":null,"earliestYearBP":39500,"earliestYearCE":-37550,"entryId":"noaa-ocean-26210","funding":[],"investigators":"Setiawan, R.Y.; Mohtadi, M.; Southon, J.R.; Groeneveld, J.; Steinke, S.; Hebbeln, D.","mostRecentYearBP":0,"mostRecentYearCE":1950,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/26210","originalSource":null,"publication":[{"abstract":"The advection of relatively fresh Java Sea water through the Sunda Strait is presently responsible for the low‐salinity “tongue” in the eastern tropical Indian Ocean with salinities as low as 32‰. The evolution of the hydrologic conditions in the eastern tropical Indian Ocean since the last glacial period, when the Sunda shelf was exposed and any advection via the Sunda Strait was cutoff, and the degree to which these conditions were affected by the Sunda Strait opening are not known. Here we have analyzed two sediment cores (GeoB 10042–1 and GeoB 10043–3) collected from the eastern tropical Indian Ocean off the Sunda Strait that cover the past ~40,000 years. We investigate the magnitude of terrigenous supply, sea surface temperature (SST), and seawater δ18O (δ18Osw) changes related to the sea level‐driven opening of the Sunda Strait. Our new spliced records off the Sunda Strait show that during the last glacial, average SST was cooler and δ18Osw was higher than elsewhere in the eastern tropical Indian Ocean. Seawater δ18O decreased ~0.5‰ after the opening of the Sunda Strait at ~10 kyr B.P. accompanied by an SST increase of 1.7°C. We suggest that fresher sea surface conditions have persisted ever since due to a continuous transport of low‐salinity Java Sea water into the eastern tropical Indian Ocean via the Sunda Strait that additionally increased marine productivity through the concomitant increase in terrigenous supply.","author":{"name":"Setiawan, R.Y., M. Mohtadi, J. Southon, J. Groeneveld, S. Steinke, and D. Hebbeln"},"citation":"Setiawan, R.Y., M. Mohtadi, J. Southon, J. Groeneveld, S. Steinke, and D. Hebbeln. 2015. The consequences of opening the Sunda Strait on the hydrography of the eastern tropical Indian Ocean. Paleoceanography, 30(10), 1358-1372. doi: 10.1002/2015PA002802","edition":null,"identifier":{"id":"10.1002/2015PA002802","type":"doi","url":"http://dx.doi.org/10.1002/2015PA002802"},"issue":"10","journal":"Paleoceanography","pages":"1358-1372","pubRank":"1","pubYear":2015,"reportNumber":null,"title":"The consequences of opening the Sunda Strait on the hydrography of the eastern tropical Indian Ocean","type":"publication","volume":"30"}],"reconstruction":"Y","scienceKeywords":null,"site":[{"NOAASiteId":"57832","geo":{"geoType":"Feature","geometry":{"coordinates":["-7.1135","104.643"],"type":"POINT"},"properties":{"easternmostLongitude":"104.643","maxElevationMeters":"-2454","minElevationMeters":"-2454","northernmostLatitude":"-7.1135","southernmostLatitude":"-7.1135","westernmostLongitude":"104.643"}},"locationName":"Ocean>Indian Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"38113","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>trace metals in carbonates","earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/setiawan2015/setiawan2015-gb10042-1.txt","linkText":"GeoB 10042-1 d18O, Mg/Ca and SST Data","urlDescription":"NOAA Template File","variables":[]}],"dataTableName":"GeoB10042-1 Setiawan2015","dataTableNotes":null,"earliestYear":39420,"earliestYearBP":39420,"earliestYearCE":-37470,"mostRecentYear":4200,"mostRecentYearBP":4200,"mostRecentYearCE":-2250,"species":[],"timeUnit":"cal yr BP"}],"siteName":"GeoB10042-1"},{"NOAASiteId":"57833","geo":{"geoType":"Feature","geometry":{"coordinates":["-7.3095","105.058833"],"type":"POINT"},"properties":{"easternmostLongitude":"105.058833","maxElevationMeters":"-2171","minElevationMeters":"-2171","northernmostLatitude":"-7.3095","southernmostLatitude":"-7.3095","westernmostLongitude":"105.058833"}},"locationName":"Ocean>Indian Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"38114","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>oxygen isotopes","earth science>paleoclimate>paleocean>trace metals in carbonates"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/setiawan2015/setiawan2015-gb10043-3.txt","linkText":"GeoB 10043-3 d18O, Mg/Ca and SST Data","urlDescription":"NOAA Template File","variables":[]}],"dataTableName":"GeoB10043-3 Setiawan2015","dataTableNotes":null,"earliestYear":33627,"earliestYearBP":33627,"earliestYearCE":-31677,"mostRecentYear":210,"mostRecentYearBP":210,"mostRecentYearCE":1740,"species":[],"timeUnit":"cal yr BP"}],"siteName":"GeoB10043-3"},{"NOAASiteId":"57834","geo":{"geoType":"Feature","geometry":{"coordinates":["-7.3095","-7.1135","104.643","105.0588"],"type":"POLYGON"},"properties":{"easternmostLongitude":"105.0588","maxElevationMeters":"-2171","minElevationMeters":"-2454","northernmostLatitude":"-7.1135","southernmostLatitude":"-7.3095","westernmostLongitude":"104.643"}},"locationName":"Ocean>Indian Ocean","mappable":"N","paleoData":[{"NOAADataTableId":"38115","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>oxygen isotopes","earth science>paleoclimate>paleocean>trace metals in carbonates"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/setiawan2015/setiawan2015-gb42-1-gb43-3-splice.txt","linkText":"GeoB 10042-1/10043-3 Splice d18O, Mg/Ca and SST Data","urlDescription":"NOAA Template File","variables":[]}],"dataTableName":"GeoB10042-1/10043-3 splice Setiawan2015","dataTableNotes":null,"earliestYear":39500,"earliestYearBP":39500,"earliestYearCE":-37550,"mostRecentYear":0,"mostRecentYearBP":0,"mostRecentYearCE":1950,"species":[],"timeUnit":"cal yr BP"}],"siteName":"GeoB10042-1/10043-3"}],"studyCode":null,"studyName":"Eastern Tropical Indian Ocean d18O, Mg/Ca and SST Reconstruction Data during the last 40,000 years","studyNotes":null,"version":"1.0","xmlId":"65135"}