{"xmlId":"1716","NOAAStudyId":"2646","studyName":"Okinawa Trough Oxygen Isotope and Mg/Ca-SST Data","doi":"https://doi.org/10.25921/pstv-mq59","uuid":"0c1e1951-b464-4fce-bfa8-fe0fca01e85c","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":"Sun, Y.; Oppo, D.W.; Xiang, R.; Liu, W.; Gao, S.","investigatorDetails":[{"firstName":"Youbin","lastName":"Sun","initials":"Y.","orcId":"0000-0002-6696-6620"},{"firstName":"Delia","lastName":"Oppo","initials":"D.W.","orcId":"0000-0003-2946-5904"},{"firstName":"Rong","lastName":"Xiang","initials":"R.","orcId":null},{"firstName":"Weiguo","lastName":"Liu","initials":"W.","orcId":null},{"firstName":"Shu","lastName":"Gao","initials":"S.","orcId":"0000-0001-7850-9753"}],"version":"1.0","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"OCE-020776"},{"fundingAgency":"National Natural Science Foundation of China","fundingGrant":"40106006 and 40206007"},{"fundingAgency":"State Key Laboratory of Loess and Quaternary Geology of China","fundingGrant":"LLQG0204"}],"studyNotes":"Okinawa Trough deglacial and Holocene records of planktonic d18O and Mg/Ca-based sea surface temperature (SST). Core A7 (27.82N, 126.98E, 1264 m, middle Okinawa Trough)","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/2646","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-ocean-2646.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-ocean-2646.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/paleoceanography","studyCode":null,"scienceKeywords":["Sea Surface Temperature Reconstruction"],"reconstruction":"Y","contributionDate":"2005-07-01","entryId":"noaa-ocean-2646","earliestYearBP":18681,"mostRecentYearBP":1275,"earliestYearCE":-16731,"mostRecentYearCE":675,"publication":[{"author":{"name":"Sun, Y., D.W. Oppo, R. Xiang, W. Liu, and S. Gao"},"pubYear":2005,"title":"Last deglaciation in the Okinawa Trough: Subtropical northwest Pacific link to Northern Hemisphere and tropical climate","journal":"Paleoceanography","volume":"20","edition":null,"issue":"4","pages":null,"reportNumber":"PA4005","citation":"Sun, Y., D.W. Oppo, R. Xiang, W. Liu, and S. Gao. 2005. Last deglaciation in the Okinawa Trough: Subtropical northwest Pacific link to Northern Hemisphere and tropical climate. Paleoceanography, 20(4), PA4005. doi: 10.1029/2004PA001061","type":"publication","identifier":{"type":"doi","id":"10.1029/2004PA001061","url":"http://dx.doi.org/10.1029/2004PA001061"},"abstract":"Detailed deglacial and Holocene records of planktonic d18O and Mg/Ca-based sea surface temperature (SST) from the Okinawa Trough suggest that at ~18 to 17 thousand years before present (kyr B.P.), late spring/early summer SSTs were approximately 3°C cooler than today, while surface waters were up to 1 practical salinity unit saltier. These conditions are consistent with a weaker influence of the summer East Asian Monsoon (EAM) than today. The timing of suborbital SST oscillations suggests a close link with abrupt changes in the EAM and North Atlantic climate. A tropical influence, however, may have resulted in subtle decoupling between the North Atlantic and the Okinawa Trough/EAM during the deglaciation. Okinawa Trough surface water trends in the Holocene are consistent with model simulations of an inland shift of intense EAM precipitation during the middle Holocene. Millennial-scale alternations between relatively warm, salty conditions and relatively cold, fresh conditions suggest varying influence of the Kuroshio during the Holocene.","pubRank":"1"}],"site":[{"NOAASiteId":"19285","siteName":"A7","siteCode":null,"mappable":"Y","locationName":"Ocean>Pacific Ocean>North Pacific Ocean","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["28.02","127.02"]},"properties":{"southernmostLatitude":"28.02","northernmostLatitude":"28.02","westernmostLongitude":"127.02","easternmostLongitude":"127.02","minElevationMeters":"-1264","maxElevationMeters":"-1264"}},"paleoData":[{"dataTableName":"A7","NOAADataTableId":"4372","earliestYear":15349,"mostRecentYear":1367,"timeUnit":"14C yr BP","earliestYearBP":18681,"mostRecentYearBP":1275,"earliestYearCE":-16731,"mostRecentYearCE":675,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/contributions_by_author/sun2005","urlDescription":"Original Data and Full Metadata","linkText":"sun2005","variables":[],"NOAAKeywords":["earth science>paleoclimate>paleocean>oxygen isotopes","earth science>paleoclimate>paleocean>age control","earth science>paleoclimate>paleocean>trace metals in carbonates","earth science>paleoclimate>paleocean>reconstruction"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/paleocean/sediment_files/complete/a7-tab.txt","urlDescription":"Alternate Format Data","linkText":"a7-tab.txt","variables":[{"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvWhat":"earth system variable>temperature variable>temperature>sea water temperature>sea surface temperature","cvMaterial":"reconstruction material>element or compound ratio>magnesium/calcium","cvError":null,"cvUnit":"temperature unit>degree Celsius","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"SST"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"AGE1; MARINE04 400-year reservoir age","cvFormat":"Numeric","cvShortName":"age1_calBP"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":"AGE2; 700-year reservoir age","cvFormat":"Numeric","cvShortName":"age2_calBP"},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Globigerinoides sp.>Globigerinoides ruber","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil>per mil PDB","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"d18Oruber"},{"cvDataType":"PALEOCEANOGRAPHY","cvWhat":"chemical composition>element or compound ratio>magnesium/calcium","cvMaterial":"biological material>organism>foraminifer>planktic foraminifer>Globigerinoides sp.>Globigerinoides ruber","cvError":null,"cvUnit":"dimensionless","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"Mg/Ca"},{"cvDataType":"CLIMATE RECONSTRUCTIONS|PALEOCEANOGRAPHY","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>centimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":"depth_cm"}],"NOAAKeywords":["earth science>paleoclimate>paleocean>reconstruction","earth science>paleoclimate>paleocean>trace metals in carbonates","earth science>paleoclimate>paleocean>oxygen isotopes","earth science>paleoclimate>paleocean>age control"]}]}]}],"reference":{"pastThesaurusSkos":"https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf","pastThesaurusExplorer":"https://www.ncei.noaa.gov/access/paleo-search/cvterms","gcmdKeywordThesaurus":"https://earthdata.nasa.gov/earth-observation-data/find-data/idn/gcmd-keywords"},"dataLicenseDescription":null,"dataLicenseUrl":null}