{"NOAAStudyId":"23510","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":"2018-03-26","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-23510.xml","doi":null,"earliestYearBP":84065,"earliestYearCE":-82115,"entryId":"noaa-cave-23510","funding":[],"investigators":"Stríkis, N.M.; Cruz, F.W.; Barreto, E.A.S.; Naughton, F.; Vuille, M.; Cheng, H.; Voelker, A.H.L.; Zhang, H.; Karmann, I.; Edwards, R.L.; Auler, A.S.; Santos, R.V.; Sales, H.R.","mostRecentYearBP":12084,"mostRecentYearCE":-10134,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/23510","originalSource":null,"publication":[{"abstract":"Heinrich Stadials significantly affected tropical precipitation through changes in the interhemispheric temperature gradient as a result of abrupt cooling in the North Atlantic. Here, we focus on changes in South American monsoon precipitation during Heinrich Stadials using a suite of speleothem records covering the last 85 ky B.P. from eastern South America. We document the response of South American monsoon precipitation to episodes of extensive iceberg discharge, which is distinct from the response to the cooling episodes that precede the main phase of ice-rafted detritus deposition. Our results demonstrate that iceberg discharge in the western subtropical North Atlantic led to an abrupt increase in monsoon precipitation over eastern South America. Our findings of an enhanced Southern Hemisphere monsoon, coeval with the iceberg discharge into the North Atlantic, are consistent with the observed abrupt increase in atmospheric methane concentrations during Heinrich Stadials.","author":{"name":"Nicolás M. Stríkis, Francisco W. Cruz, Eline A. S. Barreto, Filipa Naughton, Mathias Vuille, Hai Cheng, Antje H. L. Voelker, Haiwei Zhang, Ivo Karmann, R. Lawrence Edwards, Augusto S. Auler, Roberto Ventura Santos and Hamilton Reis Sales"},"citation":"Nicolás M. Stríkis, Francisco W. Cruz, Eline A. S. Barreto, Filipa Naughton, Mathias Vuille, Hai Cheng, Antje H. L. Voelker, Haiwei Zhang, Ivo Karmann, R. Lawrence Edwards, Augusto S. Auler, Roberto Ventura Santos and Hamilton Reis Sales. 2018. South American monsoon response to iceberg discharge in the North Atlantic. Proceedings of the National Academy of Sciences. . doi: 10.1073/pnas.1717784115","edition":null,"identifier":{"id":"10.1073/pnas.1717784115","type":"doi","url":"http://dx.doi.org/10.1073/pnas.1717784115"},"issue":null,"journal":"Proceedings of the National Academy of Sciences","pages":null,"pubRank":"1","pubYear":2018,"reportNumber":null,"title":"South American monsoon response to iceberg discharge in the North Atlantic","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"31569","geo":{"geoType":"Feature","geometry":{"coordinates":["-12.65","-41.05"],"type":"POINT"},"properties":{"easternmostLongitude":"-41.05","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"-12.65","southernmostLatitude":"-12.65","westernmostLongitude":"-41.05"}},"locationName":"Continent>South America>Brazil","mappable":"Y","paleoData":[{"NOAADataTableId":"35556","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth 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Cave"},{"NOAASiteId":"57620","geo":{"geoType":"Feature","geometry":{"coordinates":["-12.5833","-41.0333"],"type":"POINT"},"properties":{"easternmostLongitude":"-41.0333","maxElevationMeters":null,"minElevationMeters":null,"northernmostLatitude":"-12.5833","southernmostLatitude":"-12.5833","westernmostLongitude":"-41.0333"}},"locationName":"Continent>South America>Brazil","mappable":"Y","paleoData":[{"NOAADataTableId":"35555","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/southamerica/brazil/marota2018d18o.txt","linkText":"Marota Cave d18O Data","urlDescription":"NOAA Template File","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"millimeter","cvWhat":"depth 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oxygen isotope (d18O) records from 4 caves in Brazil: Lapa Grande (LG), Lapa Sem Fim (LSF), Marota (MAG) and Paixão (PX), for the past 85,000 years.","version":"1.0","xmlId":"21654"}