{"xmlId":"8850","NOAAStudyId":"9957","studyName":"8.2k Event Speleothem Oxygen Isotope Data","doi":"https://doi.org/10.25921/dmeb-8a29","uuid":"69abe4f2-8de0-4807-81d4-7f70cc6aed57","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":"SPELEOTHEMS","investigators":"Cheng, H.; Fleitmann, D.; Edwards, R.L.; Wang, X.; Cruz, F.W.; Auler, A.S.; Mangini, A.; Wang, Y.; Kong, X.; Burns, S.J.; Matter, A.","investigatorDetails":[{"firstName":"Hai","lastName":"Cheng","initials":"H.","orcId":"0000-0002-5305-9458"},{"firstName":"Dominik","lastName":"Fleitmann","initials":"D.","orcId":"0000-0001-5977-8835"},{"firstName":"R. Lawrence","lastName":"Edwards","initials":"R.L.","orcId":"0000-0002-7027-5881"},{"firstName":"Xianfeng","lastName":"Wang","initials":"X.","orcId":"0000-0002-8614-5627"},{"firstName":"Francisco","lastName":"Cruz","initials":"F.W.","orcId":"0000-0002-4030-4581"},{"firstName":"Augusto","lastName":"Auler","initials":"A.S.","orcId":"0000-0002-8454-3381"},{"firstName":"Augusto","lastName":"Mangini","initials":"A.","orcId":null},{"firstName":"Yongjin","lastName":"Wang","initials":"Y.","orcId":"0000-0001-6021-2724"},{"firstName":"Xinggong","lastName":"Kong","initials":"X.","orcId":"0000-0001-5632-3851"},{"firstName":"Stephen","lastName":"Burns","initials":"S.J.","orcId":"0000-0003-4623-5326"},{"firstName":"Albert","lastName":"Matter","initials":"A.","orcId":"0000-0001-8072-3185"}],"version":"1.0","funding":[{"fundingAgency":"Comer Science and Education Foundation","fundingGrant":"CC8"},{"fundingAgency":"US National Science Foundation","fundingGrant":"0214041, 0116395,  023239"},{"fundingAgency":"National Natural Science Foundation China","fundingGrant":"40631003"},{"fundingAgency":"Swiss National Science Foundation","fundingGrant":"PP002-110554/1"}],"studyNotes":"Oxygen isotope data from six stalagmites in China, the Middle East, \nand South America over the 8.2k Climate Event.  The stalagmites are \nfrom Dongge Cave, southern China (D4 and DA, 25°17'N, 108°5'E), \nQunf Cave, Oman (Q5, 17°10'N, 54°18'E), Hoti Cave, Oman (H14, 23°05'N, \n57°21'E), Padre Cave (PAD07, 13°13'S, 44°3'W), eastern Brazil, \nand Paixão Cave (PX5, 12°39'S, 41°3'W), eastern Brazil\n","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/9957","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-cave-9957.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-cave-9957.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/speleothem","studyCode":null,"scienceKeywords":["abrupt climate change","Intertropical Convergence Zone (ITCZ)","Monsoon","Meridional Overturning Circulation (MOC)"],"reconstruction":"N","contributionDate":"2010-07-21","entryId":"noaa-cave-9957","earliestYearBP":8566,"mostRecentYearBP":7678,"earliestYearCE":-6616,"mostRecentYearCE":-5728,"publication":[{"author":{"name":"Cheng, H., D. Fleitmann, R.L. Edwards, X. Wang, F.W. Cruz, A.S. Auler, A. Mangini, Y. Wang, X. Kong, S.J. Burns, and A. Matter"},"pubYear":2009,"title":"Timing and structure of the 8.2 kyr B.P. event inferred from d18O records of stalagmites from China, Oman, and Brazil","journal":"Geology","volume":"37","edition":null,"issue":"11","pages":"10071010","reportNumber":null,"citation":"Cheng, H., D. Fleitmann, R.L. Edwards, X. Wang, F.W. Cruz, A.S. Auler, A. Mangini, Y. Wang, X. Kong, S.J. Burns, and A. Matter. 2009. Timing and structure of the 8.2 kyr B.P. event inferred from d18O records of stalagmites from China, Oman, and Brazil. Geology, 37(11), 10071010. doi: 10.1130/G30126A.1","type":"publication","identifier":{"type":"doi","id":"10.1130/G30126A.1","url":"http://dx.doi.org/10.1130/G30126A.1"},"abstract":"Oxygen isotope records of stalagmites from China and Oman reveal a weak summer monsoon event, with a double-plunging structure, that started 8.21 ± 0.02 kyr B.P. An identical but antiphased pattern is also evident in two stalagmite records from eastern Brazil, indicating that the South American Summer Monsoon was intensified during the 8.2 kyr B.P. event. These records demonstrate that the event was of global extent and synchronous within dating errors of <50 years. In comparison with recent model simulations, it is plausible that the 8.2 kyr B.P. event can be tied in changes of the Atlantic Meridional Overturning Circulation triggered by a glacial lake draining event. This, in turn, affected North Atlantic climate and latitudinal position of the Intertropical Convergence Zone, resulting in the observed low-latitude monsoonal precipitation patterns.","pubRank":"1"}],"site":[{"NOAASiteId":"6554","siteName":"Dongge Cave","siteCode":null,"mappable":"Y","locationName":"Continent>Asia>Eastern Asia>China","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["25.28","108.08"]},"properties":{"southernmostLatitude":"25.28","northernmostLatitude":"25.28","westernmostLongitude":"108.08","easternmostLongitude":"108.08","minElevationMeters":"680","maxElevationMeters":"680"}},"paleoData":[{"dataTableName":"D4 Dongge","NOAADataTableId":"18801","earliestYear":8485,"mostRecentYear":7992,"timeUnit":"cal yr BP","earliestYearBP":8485,"mostRecentYearBP":7992,"earliestYearCE":-6535,"mostRecentYearCE":-6042,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.txt","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.txt","variables":[{"cvDataType":"SPELEOTHEMS","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil>per mil VPDB","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>spectroscopy>mass spectrometry>isotope ratio mass spectrometry","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>millimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.xls","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.xls","variables":[],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]}]},{"dataTableName":"DA Dongge","NOAADataTableId":"18802","earliestYear":8344,"mostRecentYear":7990,"timeUnit":"cal yr BP","earliestYearBP":8344,"mostRecentYearBP":7990,"earliestYearCE":-6394,"mostRecentYearCE":-6040,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.txt","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.txt","variables":[{"cvDataType":"SPELEOTHEMS","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>millimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil>per mil VPDB","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>spectroscopy>mass spectrometry>isotope ratio mass spectrometry","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.xls","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.xls","variables":[],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]}]}]},{"NOAASiteId":"14640","siteName":"Qunf Cave","siteCode":null,"mappable":"Y","locationName":"Continent>Asia>Western Asia>Middle East>Oman","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["17.17","54.3"]},"properties":{"southernmostLatitude":"17.17","northernmostLatitude":"17.17","westernmostLongitude":"54.3","easternmostLongitude":"54.3","minElevationMeters":"650","maxElevationMeters":"650"}},"paleoData":[{"dataTableName":"Q5 Qunf","NOAADataTableId":"18806","earliestYear":8453,"mostRecentYear":8030,"timeUnit":"cal yr BP","earliestYearBP":8453,"mostRecentYearBP":8030,"earliestYearCE":-6503,"mostRecentYearCE":-6080,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.txt","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.txt","variables":[{"cvDataType":"SPELEOTHEMS","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>millimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil>per mil VPDB","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>spectroscopy>mass spectrometry>isotope ratio mass spectrometry","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.xls","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.xls","variables":[],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]}]}]},{"NOAASiteId":"31383","siteName":"Hoti Cave","siteCode":null,"mappable":"Y","locationName":"Continent>Asia>Western Asia>Middle East>Oman","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["23.08","57.35"]},"properties":{"southernmostLatitude":"23.08","northernmostLatitude":"23.08","westernmostLongitude":"57.35","easternmostLongitude":"57.35","minElevationMeters":"800","maxElevationMeters":"800"}},"paleoData":[{"dataTableName":"H14","NOAADataTableId":"18803","earliestYear":8566,"mostRecentYear":7678,"timeUnit":"cal yr BP","earliestYearBP":8566,"mostRecentYearBP":7678,"earliestYearCE":-6616,"mostRecentYearCE":-5728,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.txt","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.txt","variables":[{"cvDataType":"SPELEOTHEMS","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>millimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil>per mil VPDB","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>spectroscopy>mass spectrometry>isotope ratio mass spectrometry","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.xls","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.xls","variables":[],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]}]}]},{"NOAASiteId":"31568","siteName":"Padre Cave","siteCode":null,"mappable":"Y","locationName":"Continent>South America>Brazil","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["-13.2167","-44.05"]},"properties":{"southernmostLatitude":"-13.2167","northernmostLatitude":"-13.2167","westernmostLongitude":"-44.05","easternmostLongitude":"-44.05","minElevationMeters":"650","maxElevationMeters":"800"}},"paleoData":[{"dataTableName":"PAD07","NOAADataTableId":"18804","earliestYear":8507,"mostRecentYear":7782,"timeUnit":"cal yr BP","earliestYearBP":8507,"mostRecentYearBP":7782,"earliestYearCE":-6557,"mostRecentYearCE":-5832,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.txt","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.txt","variables":[{"cvDataType":"SPELEOTHEMS","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>millimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil>per mil VPDB","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>spectroscopy>mass spectrometry>isotope ratio mass spectrometry","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.xls","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.xls","variables":[],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]}]}]},{"NOAASiteId":"31569","siteName":"Paixão Cave","siteCode":null,"mappable":"Y","locationName":"Continent>South America>Brazil","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["-12.65","-41.05"]},"properties":{"southernmostLatitude":"-12.65","northernmostLatitude":"-12.65","westernmostLongitude":"-41.05","easternmostLongitude":"-41.05","minElevationMeters":"650","maxElevationMeters":"800"}},"paleoData":[{"dataTableName":"PX5","NOAADataTableId":"18805","earliestYear":8221,"mostRecentYear":8087,"timeUnit":"cal yr BP","earliestYearBP":8221,"mostRecentYearBP":8087,"earliestYearCE":-6271,"mostRecentYearCE":-6137,"coreLengthMeters":null,"dataTableNotes":null,"species":[],"dataFile":[{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.txt","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.txt","variables":[{"cvDataType":"SPELEOTHEMS","cvWhat":"age variable>age","cvMaterial":null,"cvError":null,"cvUnit":"time unit>age unit>calendar year before present","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"depth variable>depth","cvMaterial":null,"cvError":null,"cvUnit":"length unit>millimeter","cvSeasonality":null,"cvDetail":null,"cvMethod":null,"cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null},{"cvDataType":"SPELEOTHEMS","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvError":null,"cvUnit":"concentration unit>parts per notation unit>parts per thousand>per mil>per mil VPDB","cvSeasonality":null,"cvDetail":"raw","cvMethod":"laboratory method>spectroscopy>mass spectrometry>isotope ratio mass spectrometry","cvAdditionalInfo":null,"cvFormat":"Numeric","cvShortName":null}],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]},{"fileUrl":"https://www.ncei.noaa.gov/pub/data/paleo/speleothem/cheng2009-8200bp.xls","urlDescription":"Speleothem","linkText":"cheng2009-8200bp.xls","variables":[],"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"]}]}]}],"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}