{"xmlId":"16602","NOAAStudyId":"18918","studyName":"Antarctic Intermediate Water properties since 400 ka recorded in benthic foraminifera","doi":"https://doi.org/10.25921/rt7q-nh82","uuid":"1b3343f6-cd7a-491f-a805-1bf86f89b4ba","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":"PALEOCEANOGRAPHY","investigators":"Elmore, A.C.; McClymont, E.L.; Elderfield, H.; Kender, S.; Cook, M.R.; Leng, M.J.; Greaves, M.; Misra, S.","investigatorDetails":[{"firstName":"Aurora","lastName":"Elmore","initials":"A.C.","orcId":"0000-0002-4977-3771"},{"firstName":"Erin","lastName":"McClymont","initials":"E.L.","orcId":"0000-0003-1562-8768"},{"firstName":"Henry","lastName":"Elderfield","initials":"H.","orcId":null},{"firstName":"Sev","lastName":"Kender","initials":"S.","orcId":"0000-0003-4216-3214"},{"firstName":"Michael","lastName":"Cook","initials":"M.R.","orcId":null},{"firstName":"Melanie","lastName":"Leng","initials":"M.J.","orcId":"0000-0003-1115-5166"},{"firstName":"Mervyn","lastName":"Greaves","initials":"M.","orcId":"0000-0001-8014-8627"},{"firstName":"Sambuddha","lastName":"Misra","initials":"S.","orcId":"0000-0002-8825-451X"}],"version":"1.0","funding":[{"fundingAgency":"UK Natural Environment Research Council (NERC)","fundingGrant":"NE/I027703/1, IP-1339-1112"}],"studyNotes":"Provided Keywords: Antarctic Intermediate Water, Deep Sea Drilling Program site 593, benthic foraminifera, stable isotopes, Mg/Ca, B/Ca","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/18918","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-18918.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-ocean-18918.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"2015-06-29","entryId":"noaa-ocean-18918","earliestYearBP":400000,"mostRecentYearBP":0,"earliestYearCE":-398050,"mostRecentYearCE":1950,"publication":[{"author":{"name":"Elmore, Aurora C., Erin L. McClymont, Henry Elderfield, Sev Kender, Michael R. Cook, Melanie J. Leng, Mervyn Greaves, and Sambuddha Misra"},"pubYear":2015,"title":"Antarctic Intermediate Water properties since 400 ka recorded in infaunal (Uvigerina peregrina) and epifaunal (Planulina wuellerstorfi) benthic foraminifera","journal":"Earth and Planetary Science Letters","volume":"428","edition":null,"issue":null,"pages":"193-203","reportNumber":null,"citation":"Elmore, Aurora C., Erin L. McClymont, Henry Elderfield, Sev Kender, Michael R. Cook, Melanie J. Leng, Mervyn Greaves, and Sambuddha Misra. 2015. Antarctic Intermediate Water properties since 400 ka recorded in infaunal (Uvigerina peregrina) and epifaunal (Planulina wuellerstorfi) benthic foraminifera. Earth and Planetary Science Letters, 428, 193-203. doi: 10.1016/j.epsl.2015.07.013","type":"publication","identifier":{"type":"doi","id":"10.1016/j.epsl.2015.07.013","url":"http://dx.doi.org/10.1016/j.epsl.2015.07.013"},"abstract":"Reconstruction of intermediate water properties is important for understanding feedbacks within the ocean-climate system, particularly since these water masses are capable of driving highlow latitude teleconnections. Nevertheless, information about intermediate water mass evolution through the late Pleistocene remains limited. This paper examines changes in Antarctic Intermediate Water (AAIW), the most extensive intermediate water mass in the modern ocean through the last 400 kyr using the stable isotopic composition (´18O and ´13C) and trace element concentration (Mg/Ca and B/Ca) of two benthic foraminiferal species from the same samples: epifaunal Planulina wuellerstorfi and infaunal Uvigerina peregrina. Our results confirm that the most reasonable estimates of AAIW temperature and ”[CO23] are generated by Mg/CaU. peregrina and B/CaP. wuellerstorfi, respectively. We present a 400 kyr record of intermediate water temperature and ”[CO23] from a sediment core from the Southwest Pacific (DSDP site 593; 40°302S, 167°412E, 1068 m water depth), which lies within the core of modern AAIW. Our results suggest that a combination of geochemical analyses on both infaunal and epifaunal benthic foraminiferal species yields important information about this critical water mass through the late Pleistocene. When combined with two nearby records of water properties from deeper depths, our data demonstrate that during interglacial stages of the late Pleistocene, AAIW and Circumpolar Deep Water (CPDW) have more similar water mass properties (temperature and ´13C), while glacial stages are typified by dissimilar properties between AAIW and CPDW in the Southwest Pacific. Our new ”[CO23] record shows short time-scale variations, but a lack of coherent glacialinterglacial variability indicating that large quantities of carbon were not stored in intermediate waters during recent glacial periods.","pubRank":"1"}],"site":[{"NOAASiteId":"19104","siteName":"DSDP 593","siteCode":null,"mappable":"Y","locationName":"Ocean>Pacific Ocean>South Pacific Ocean","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["-40.507833","167.6745"]},"properties":{"southernmostLatitude":"-40.507833","northernmostLatitude":"-40.507833","westernmostLongitude":"167.6745","easternmostLongitude":"167.6745","minElevationMeters":"-1068","maxElevationMeters":"-1068"}},"paleoData":[{"dataTableName":"DSDP593Z Elmore15","NOAADataTableId":"29394","earliestYear":400000,"mostRecentYear":0,"timeUnit":"cal yr 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