{"NOAAStudyId":"8404","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":"2004-12-09","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-8404.xml","doi":null,"earliestYearBP":132500,"earliestYearCE":-130550,"entryId":"noaa-cave-8404","funding":[],"investigators":"Wang, X.; Auler, A.S.; Edwards, R.L.; Cheng, H.; Cristalli, P.S.; Smart, P.L.; Richards, D.A.; Shen, C.-C.","mostRecentYearBP":12800,"mostRecentYearCE":-10850,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/8404","originalSource":null,"publication":[{"abstract":"The tropics are the main source of the atmosphere's sensible \r\nand latent heat, and water vapour, and are therefore important \r\nfor reconstructions of past climate. But long, accurately dated\r\nrecords of southern tropical palaeoclimate, which would allow\r\nthe establishment of climatic connections to distant regions, \r\nhave not been available. Here we present a 210,000-year (210-kyr)\r\nrecord of wet periods in tropical northeastern Brazil - a region\r\nthat is currently semi-arid. The record is obtained from speleothems\r\nand travertine deposits that are accurately dated using the U/Th \r\nmethod. We find wet periods that are synchronous with periods of \r\nweak East Asian summer monsoons, cold periods in Greenland, \r\nHeinrich events in the North Atlantic and periods of decreased \r\nriver runoff to the Cariaco basin.  We infer that the wet periods \r\nmay be explained with a southward displacement of the Intertropical \r\nConvergence Zone. This widespread synchroneity of climate anomalies \r\nsuggests a relatively rapid global reorganization of the ocean-\r\natmosphere system.  We conclude that the wet periods probably \r\naffected rainforest distribution, as plant fossils show that \r\nforest expansion occurred during these intermittent wet intervals, \r\nand opened a forest corridor between the Amazonian and Atlantic \r\nrainforests.","author":null,"citation":"Wang, X., A.S. Auler, R.L. Edwards, H. Cheng, P.S. Cristalli, P.L. Smart, D.A. Richards, and C.-C. Shen. 2004. Wet periods in northeastern Brazil over the past 210 kyr linked to distant climate anomalies. Nature, 432, 740-743. doi:10.1038/nature03067","edition":null,"identifier":{"id":"10.1038/nature03067","type":"doi","url":"http://dx.doi.org/10.1038/nature03067"},"issue":null,"journal":"Nature","pages":null,"pubRank":"1","pubYear":2004,"reportNumber":null,"title":"Wet periods in northeastern Brazil over the past 210 kyr linked to distant climate anomalies","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["PAGES LOTRED SA2k","PAGES 2k Network"],"site":[{"NOAASiteId":"22707","geo":{"geoType":"Feature","geometry":{"coordinates":["-10.1666","-40.833"],"type":"POINT"},"properties":{"easternmostLongitude":"-40.833","maxElevationMeters":"500","minElevationMeters":"500","northernmostLatitude":"-10.1666","southernmostLatitude":"-10.1666","westernmostLongitude":"-40.833"}},"locationName":"Continent>South America>Brazil","mappable":"Y","paleoData":[{"NOAADataTableId":"12220","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>age control"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/brazil/northeast-brazil2004.txt","linkText":"northeast-brazil2004.txt","urlDescription":"Speleothem","variables":[]}],"dataTableName":"LBR04","dataTableNotes":null,"earliestYear":85250,"earliestYearBP":85250,"earliestYearCE":-83300,"mostRecentYear":84500,"mostRecentYearBP":84500,"mostRecentYearCE":-82550,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"12221","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>age control"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/brazil/northeast-brazil2004.txt","linkText":"northeast-brazil2004.txt","urlDescription":"Speleothem","variables":[]}],"dataTableName":"TBR17","dataTableNotes":null,"earliestYear":132500,"earliestYearBP":132500,"earliestYearCE":-130550,"mostRecentYear":128500,"mostRecentYearBP":128500,"mostRecentYearCE":-126550,"species":[],"timeUnit":"cal yr BP"},{"NOAADataTableId":"12222","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>age control"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/brazil/northeast-brazil2004.txt","linkText":"northeast-brazil2004.txt","urlDescription":"Speleothem","variables":[]}],"dataTableName":"TBV62","dataTableNotes":null,"earliestYear":13400,"earliestYearBP":13400,"earliestYearCE":-11450,"mostRecentYear":12800,"mostRecentYearBP":12800,"mostRecentYearCE":-10850,"species":[],"timeUnit":"cal yr BP"}],"siteName":"Lapa dos Brejoes"}],"studyCode":null,"studyName":"Wang et al. 2004 NE Brazil Speleothem/Travertine Growth Phases","studyNotes":null,"version":"1.0","xmlId":"7072"}