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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":"2012-07-18","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-13137.xml","doi":null,"earliestYearBP":800000,"earliestYearCE":-798050,"entryId":"noaa-ocean-13137","funding":[{"fundingAgency":"US NOAA","fundingGrant":null},{"fundingAgency":"US National Science Foundation","fundingGrant":"OCE-0549222, ATM-0455328"}],"investigators":"Lisiecki, L.E.; Raymo, M.E.","mostRecentYearBP":0,"mostRecentYearCE":1950,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/13137","originalSource":null,"publication":[{"abstract":"Benthic d18O is often used as a stratigraphic tool to place marine \r\nrecords on a common age model and as a proxy for the timing of ice \r\nvolume/sea level change. However, Skinner and Shackleton (2005) \r\nfound that the timing of benthic d18O change at the last termination \r\ndiffered by 3900 years between one Atlantic site and one Pacific site. \r\nThese results suggest that benthic d18O change may not always \r\naccurately record the timing of deglaciation. We compare benthic d18O \r\nrecords from 20 Atlantic sites and 14 Pacific sites to evaluate \r\nsystematic differences in the timing of terminations in benthic d18O. \r\nAnalysis of sedimentation rates derived from the alignment of benthic \r\nd18O suggests a statistically significant Atlantic lead over Pacific \r\nbenthic d18O change during the last six terminations. We estimate an \r\naverage Pacific benthic d18O lag of 1600 years for Terminations 1-5, \r\nslightly larger than the delay expected from ocean mixing rates \r\ngiven that most glacial meltwater probably enters the North Atlantic. \r\nWe additionally find evidence of ~4000-year Pacific d18O lags at \r\napproximately 128 ka and 330 ka, suggesting that stratigraphic \r\ncorrelation of d18O has the potential to generate age model errors \r\nof several thousand years during terminations. A simple model \r\ndemonstrates that these lags can be generated by diachronous \r\ntemperature changes and do not require slower circulation rates. \r\nMost importantly, diachronous benthic d18O responses must be taken \r\ninto account when comparing Atlantic and Pacific benthic d18O \r\nrecords or when using benthic d18O records as a proxy for \r\nthe timing of ice volume change. ","author":null,"citation":"Lisiecki, L.E. and M.E. 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Metadata","variables":[{"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":"Atlantic sites","cvDataType":"PALEOCEANOGRAPHY","cvDetail":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>benthic foraminifer","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"Pacific sites","cvDataType":"PALEOCEANOGRAPHY","cvDetail":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>benthic foraminifer","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/lisiecki2009/lisiecki2009.xls","linkText":"lisiecki2009.xls","urlDescription":"Original Data and Full Metadata","variables":[]}],"dataTableName":"LR2009","dataTableNotes":null,"earliestYear":800000,"earliestYearBP":800000,"earliestYearCE":-798050,"mostRecentYear":0,"mostRecentYearBP":0,"mostRecentYearCE":1950,"species":[],"timeUnit":"cal yr BP"}],"siteName":"ODP1012"},{"NOAASiteId":"30618","geo":{"geoType":"Feature","geometry":{"coordinates":["41","-126.43"],"type":"POINT"},"properties":{"easternmostLongitude":"-126.43","maxElevationMeters":"-3042","minElevationMeters":"-3042","northernmostLatitude":"41","southernmostLatitude":"41","westernmostLongitude":"-126.43"}},"locationName":"Ocean>Pacific Ocean>North Pacific Ocean","mappable":"Y","paleoData":[{"NOAADataTableId":"22594","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>paleocean>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/lisiecki2009/lisiecki2009.txt","linkText":"lisiecki2009.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":"calendar kiloyear before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":"Atlantic sites","cvDataType":"PALEOCEANOGRAPHY","cvDetail":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>benthic foraminifer","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":"Pacific sites","cvDataType":"PALEOCEANOGRAPHY","cvDetail":"averaged","cvError":null,"cvFormat":"Numeric","cvMaterial":"biological material>organism>foraminifer>benthic foraminifer","cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]},{"NOAAKeywords":["earth science>paleoclimate>paleocean>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/lisiecki2009/lisiecki2009.xls","linkText":"lisiecki2009.xls","urlDescription":"Original Data and Full Metadata","variables":[]}],"dataTableName":"ODP1020-LR09","dataTableNotes":null,"earliestYear":800000,"earliestYearBP":800000,"earliestYearCE":-798050,"mostRecentYear":0,"mostRecentYearBP":0,"mostRecentYearCE":1950,"species":[],"timeUnit":"cal yr BP"}],"siteName":"ODP1020"}],"studyCode":null,"studyName":"Atlantic and Pacific 800 KYr Benthic d18O Stacks","studyNotes":"Stacked (averaged) benthic foraminineral d18O records from 20 Atlantic \nsites and 14 Pacific sites, covering the past 800,000 years. \n\nAtlantic records are from ODP sites 980, 982, 983, 984, 552, 607, \n664, 502, 658, 659, 925, 926, 927, 928, 929, 1090, and 1089,\nand sites RC13-229, GeoB1041, and GeoB1214. Pacific records are from \nODP sites 677, 846, 849, 1012, 1020, 806, 1123, 1143, and 1146, \nand sites V19-28, V21-146, PC72, and PC18.","version":"1.0","xmlId":"11179"}