{"NOAAStudyId":"20466","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":"2016-09-07","dataPublisher":"NOAA","dataType":"TREE RING","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/tree-ring","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-tree-20466.xml","doi":"https://doi.org/10.25921/h9x5-r042","earliestYearBP":-2,"earliestYearCE":1952,"entryId":"noaa-tree-20466","funding":[{"fundingAgency":"Australian Research Council  ","fundingGrant":"ARC DP120104320"},{"fundingAgency":"CNRS","fundingGrant":"LEFE-PATISO"}],"investigators":"Lavergne, A.; Daux, V.; Villalba, R.; Pierre, M.; Stievenard, M.; Vimeux, F.; Srur, A.M.","mostRecentYearBP":-61,"mostRecentYearCE":2011,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/20466","originalSource":null,"publication":[{"abstract":"Tree ring d18O chronologies from two native species (Fitzroya cupressoides and Nothofagus pumilio) in northern Patagonia were developed to assess their potential for paleoclimate reconstructions. The five annually resolved cellulose d18O chronologies (two for F. cupressoides and three for N. pumilio) are located on the Andes along the steep west-to-east precipitation gradient. Over the common 60 years long interval, the five site-d18Ocell chronologies exhibit a strong common signal as indicated by the significant mean intercorrelation (r = 0.61, p < 0.05) and the high percentage (65%) of total variance explained by the first empirical orthogonal function. Although correlation analyses reveal that the two mean species-d18Ocell chronologies are mainly modulated by December-May temperature, the N. pumilio chronology shows a greater sensitivity to record temperature variations (r = 0.57, p < 0.05). The d18Ocell of N. pumilio contains a regional temperature signal representative of a large area in southern South America under the influence of the Southern Annular Mode. This study indicates that d18Ocell in N. pumilio is a promising proxy to reconstruct past variations in temperature in South America south of 38S.","author":{"name":"Aliénor Lavergne, Valérie Daux, Ricardo Villalba, Monique Pierre, Michel Stievenard, Françoise Vimeux, Ana Marina Srur"},"citation":"Aliénor Lavergne, Valérie Daux, Ricardo Villalba, Monique Pierre, Michel Stievenard, Françoise Vimeux, Ana Marina Srur. 2016. Are the oxygen isotopic compositions of Fitzroya cupressoides and Nothofagus pumilio cellulose promising proxies for climate reconstructions in northern Patagonia?. Journal of Geophysical Research: Biogeosciences, 121(3), 767-776. doi: 10.1002/2015JG003260","edition":null,"identifier":{"id":"10.1002/2015JG003260","type":"doi","url":"http://dx.doi.org/10.1002/2015JG003260"},"issue":"3","journal":"Journal of Geophysical Research: Biogeosciences","pages":"767-776","pubRank":"1","pubYear":2016,"reportNumber":null,"title":"Are the oxygen isotopic compositions of Fitzroya cupressoides and Nothofagus pumilio cellulose promising proxies for climate reconstructions in northern Patagonia?","type":"publication","volume":"121"}],"reconstruction":"N","scienceKeywords":["alerce","Fitzroya cupressoides (Molina) I.M. Johnst.","FICU","Patagonian cypress"],"site":[{"NOAASiteId":"56854","geo":{"geoType":"Feature","geometry":{"coordinates":["-41.18","-71.77"],"type":"POINT"},"properties":{"easternmostLongitude":"-71.77","maxElevationMeters":"1060","minElevationMeters":"1060","northernmostLatitude":"-41.18","southernmostLatitude":"-41.18","westernmostLongitude":"-71.77"}},"locationName":"Continent>South America>Argentina","mappable":"Y","paleoData":[{"NOAADataTableId":"31172","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>tree-ring>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/alerce2016d18o.txt","linkText":"Rio Alerce Tree-Ring Oxygen Isotope Data","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"chronology","cvDataType":"TREE RING","cvDetail":"composited","cvError":null,"cvFormat":"Numeric","cvMaterial":"chemical composition>compound>organic compound>organooxygen compound>cellulose>alpha cellulose","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"RA2016d18O","dataTableNotes":null,"earliestYear":1952,"earliestYearBP":-2,"earliestYearCE":1952,"mostRecentYear":2011,"mostRecentYearBP":-61,"mostRecentYearCE":2011,"species":[{"commonName":["alerce","Patagonian cypress"],"scientificName":"Fitzroya cupressoides (Molina) I.M. Johnst.","speciesCode":"FICU"}],"timeUnit":"AD"}],"siteName":"Rio Alerce"},{"NOAASiteId":"56855","geo":{"geoType":"Feature","geometry":{"coordinates":["-41.18","-71.78"],"type":"POINT"},"properties":{"easternmostLongitude":"-71.78","maxElevationMeters":"1425","minElevationMeters":"1425","northernmostLatitude":"-41.18","southernmostLatitude":"-41.18","westernmostLongitude":"-71.78"}},"locationName":"Continent>South America>Argentina","mappable":"Y","paleoData":[{"NOAADataTableId":"31171","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>tree-ring>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/almohadilla2016d18o.txt","linkText":"La Almohadilla Tree-Ring Oxygen Isotope Data","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"chronology","cvDataType":"TREE RING","cvDetail":"composited","cvError":null,"cvFormat":"Numeric","cvMaterial":"chemical composition>compound>organic compound>organooxygen compound>cellulose>alpha cellulose","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"ALM2016d18O","dataTableNotes":null,"earliestYear":1952,"earliestYearBP":-2,"earliestYearCE":1952,"mostRecentYear":2011,"mostRecentYearBP":-61,"mostRecentYearCE":2011,"species":[],"timeUnit":"AD"}],"siteName":"La Almohadilla"},{"NOAASiteId":"56856","geo":{"geoType":"Feature","geometry":{"coordinates":["-41.25","-71.28"],"type":"POINT"},"properties":{"easternmostLongitude":"-71.28","maxElevationMeters":"1612","minElevationMeters":"1612","northernmostLatitude":"-41.25","southernmostLatitude":"-41.25","westernmostLongitude":"-71.28"}},"locationName":"Continent>South America>Argentina","mappable":"Y","paleoData":[{"NOAADataTableId":"31170","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>tree-ring>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/challhuaco2016d18o.txt","linkText":"Challhuaco Tree-Ring Oxygen Isotope Data","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"chronology","cvDataType":"TREE RING","cvDetail":"composited","cvError":null,"cvFormat":"Numeric","cvMaterial":"chemical composition>compound>organic compound>organooxygen compound>cellulose>alpha cellulose","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"CHA2016d18O","dataTableNotes":null,"earliestYear":1952,"earliestYearBP":-2,"earliestYearCE":1952,"mostRecentYear":2011,"mostRecentYearBP":-61,"mostRecentYearCE":2011,"species":[],"timeUnit":"AD"}],"siteName":"Challhuaco"},{"NOAASiteId":"56857","geo":{"geoType":"Feature","geometry":{"coordinates":["-41.13","-71.8"],"type":"POINT"},"properties":{"easternmostLongitude":"-71.8","maxElevationMeters":"950","minElevationMeters":"950","northernmostLatitude":"-41.13","southernmostLatitude":"-41.13","westernmostLongitude":"-71.8"}},"locationName":"Continent>South America>Argentina","mappable":"Y","paleoData":[{"NOAADataTableId":"31169","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>tree-ring>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/glaciarfrias2016d18o.txt","linkText":"Glaciar Frias Tree-Ring Oxygen Isotope Data","urlDescription":"Data File","variables":[{"cvAdditionalInfo":null,"cvDataType":"TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"},{"cvAdditionalInfo":"chronology","cvDataType":"TREE RING","cvDetail":"composited","cvError":null,"cvFormat":"Numeric","cvMaterial":"chemical composition>compound>organic compound>organooxygen compound>cellulose>alpha cellulose","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"GF2016d18O","dataTableNotes":null,"earliestYear":1952,"earliestYearBP":-2,"earliestYearCE":1952,"mostRecentYear":2011,"mostRecentYearBP":-61,"mostRecentYearCE":2011,"species":[],"timeUnit":"AD"}],"siteName":"Glaciar Frias 2"},{"NOAASiteId":"56858","geo":{"geoType":"Feature","geometry":{"coordinates":["-41.15","-71.8"],"type":"POINT"},"properties":{"easternmostLongitude":"-71.8","maxElevationMeters":"1274","minElevationMeters":"1274","northernmostLatitude":"-41.15","southernmostLatitude":"-41.15","westernmostLongitude":"-71.8"}},"locationName":"Continent>South America>Argentina","mappable":"Y","paleoData":[{"NOAADataTableId":"31168","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>tree-ring>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/nubes2016d18o.txt","linkText":"Paso de la Nubes Tree-Ring Oxygen Isotope Data","urlDescription":"Data File","variables":[{"cvAdditionalInfo":"chronology","cvDataType":"TREE RING","cvDetail":"composited","cvError":null,"cvFormat":"Numeric","cvMaterial":"chemical composition>compound>organic compound>organooxygen compound>cellulose>alpha cellulose","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"},{"cvAdditionalInfo":null,"cvDataType":"TREE RING","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"year Common Era","cvWhat":"age variable>age"}]}],"dataTableName":"NUB2016d18O","dataTableNotes":null,"earliestYear":1952,"earliestYearBP":-2,"earliestYearCE":1952,"mostRecentYear":2011,"mostRecentYearBP":-61,"mostRecentYearCE":2011,"species":[],"timeUnit":"AD"}],"siteName":"Paso de la Nubes"}],"studyCode":"IITRDB16","studyName":"Northern Patagonia 60 Year Tree-Ring Oxygen Isotope Data","studyNotes":"Tree-ring oxygen isotope (d18O) annual chronologies from 5 sites and two native species (Fitzroya cupressoides and Nothofagus pumilio) in northern Patagonia, Argentina, for the past 60 years. \r\nIITRDB16","version":"1.0","xmlId":"18281"}