{"NOAAStudyId":"8635","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":"2009-11-01","dataPublisher":"NOAA","dataType":"SPELEOTHEMS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-cave-8635.xml","doi":null,"earliestYearBP":89160,"earliestYearCE":-87210,"entryId":"noaa-cave-8635","funding":[{"fundingAgency":"US National Science Foundation","fundingGrant":"ESH0214041,  ESH0502535, and MRI0116395 (to R.L.E.)"},{"fundingAgency":"Gary Comer Science and Education Foundation","fundingGrant":"CC8 (to R.L.E.)"},{"fundingAgency":"Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)","fundingGrant":"540064/01-7 of Brazil (to A.S.A.)"},{"fundingAgency":"GSA Research Grants","fundingGrant":"7830-04 and 8163-05 (to X.W.)"}],"investigators":"Wang, X.; Auler, A.S.; Edwards, R.L.; Cheng, H.; Ito, E.; Wang, Y.; Kong, X.; Solheid, M.","mostRecentYearBP":420,"mostRecentYearCE":1530,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/8635","originalSource":null,"publication":[{"abstract":"A U-Th dated 90,000 year-long speleothem oxygen isotope record \r\nfrom southern Brazil anti-correlates remarkably with the cave \r\ncalcite records from eastern China, but positively correlates \r\nwith the speleothem record from northeastern Brazil, suggesting \r\nan interhemispheric anti-phasing of rainfall on both millennial \r\nand orbital timescales, likely related to displacement in the \r\nmean position of the intertropical convergence zone and\r\nassociated asymmetry in Hadley circulation. The phase \r\nrelationships among these records are consistent with the\r\nhypothesis that abrupt climate events during the last glacial\r\nperiod are triggered by oceanic circulation changes in the\r\nhigh latitudes and enhanced by tropical feedbacks.","author":null,"citation":"Wang, X., A.S. Auler, R.L. Edwards, H. Cheng, E. Ito, Y. Wang, X. Kong, and M. Solheid. 2007. Millennial-scale precipitation changes in southern Brazil over the past 90,000 years. Geophys. Res. Lett., 34, L23701. doi:10.1029/2007GL031149.","edition":null,"identifier":{"id":"10.1029/2007GL031149","type":"doi","url":"http://dx.doi.org/10.1029/2007GL031149"},"issue":null,"journal":"Geophysical Research Letters","pages":null,"pubRank":"1","pubYear":2007,"reportNumber":null,"title":"Millennial-scale precipitation changes in southern Brazil over the past 90,000 years","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["PAGES 2k Network","PAGES LOTRED SA2k","millennial resolution"],"site":[{"NOAASiteId":"6560","geo":{"geoType":"Feature","geometry":{"coordinates":["-27.22","-49.16"],"type":"POINT"},"properties":{"easternmostLongitude":"-49.16","maxElevationMeters":"230","minElevationMeters":"230","northernmostLatitude":"-27.22","southernmostLatitude":"-27.22","westernmostLongitude":"-49.16"}},"locationName":"Continent>South America>Brazil","mappable":"Y","paleoData":[{"NOAADataTableId":"12500","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>carbon isotopes","earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/brazil/botuvera2007.txt","linkText":"botuvera2007.txt","urlDescription":"Speleothem","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"depth variable>depth"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar kiloyear before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil VPDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 13C"}]}],"dataTableName":"BTV3A","dataTableNotes":null,"earliestYear":-87210,"earliestYearBP":89160,"earliestYearCE":-87210,"mostRecentYear":1530,"mostRecentYearBP":420,"mostRecentYearCE":1530,"species":[],"timeUnit":"AD"}],"siteName":"Botuverá Cave"}],"studyCode":null,"studyName":"Wang et al. 2007 Botuverá Cave 90KYr Stable Isotope Data","studyNotes":"DESCRIPTION:  \n90 KYr speleothem stable isotope record from stalagmite BTV3A, \nBotuverá Cave, southern Brazil. BTV3A is 24cm long, dated by \n16 U-Th samples, and grew continuously for the last 90kyr \nwith no detectable hiatuses.\n","version":"1.0","xmlId":"2281"}