{"NOAAStudyId":"13732","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":"2012-06-27","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-13732.xml","doi":"https://doi.org/10.25921/gmfz-eg50","earliestYearBP":303,"earliestYearCE":1647,"entryId":"noaa-tree-13732","funding":[],"investigators":"Mundo, I.A.; Piraino, S.","mostRecentYearBP":-56,"mostRecentYearCE":2006,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/13732","originalSource":null,"publication":[{"abstract":"Seventeen tree-ring chronologies from the conifer Araucaria araucana (Molina) K. Koch have been analyzed across its range of distribution in Argentina. We studied the growth patterns and determined the main climatic factors influencing A. araucana radial growth. All the chronologies show a strong common signal observed by the high amount of variance explained by the first principal component (PC1) and the high mean correlation (r = 0.597) between the chronologies over the 1676-1974 interval. On this basis, we developed a regional chronology that is 866 years long (A.D. 1140-2006) and includes 621 tree-ring series. Based on the PC2 scores, chronologies were clearly separated by elevation in high- and low-elevation records. Regional tree growth is strongly negatively related to temperatures during summer and fall in the previous-growing season and spring in the current-growing season, respectively. A positive association of tree growth with precipitation is recorded during spring in the current growing season. These results suggest a close relationship between A. araucana tree growth and water availability on a regional scale. This observation is also consistent with a positive and significant correlation between our A. araucana regional record and a reconstruction of November-December rainfall for northern Patagonia inferred from the xeric Austrocedrus chilensis during the past 400 years. Negative correlations between A. araucana regional growth and the sea surface temperature in the Nino 3.4 region reflect the occurrence of above-mean summer temperatures in the region during positive tropical Pacific SST anomalies. The negative relationship with the Antarctic Oscillation (AAO) results from reduced precipitation in our study region during the positive phase of the AAO. The effect of elevation on water availability is consistent with significant correlations between ring-width variations at lower elevations and the Palmer Drought Severity Index during spring and summer in the current growing season. Our study emphasizes the high dendroclimatological potential of A. araucana chronologies for reconstructing past climate variations in northern Patagonia during the past millennium.","author":null,"citation":"Mundo, I.A., F.A. Roig Juñent, R. Villalba, T. Kitzberger, \r\nand M.D. Barrera. 2012. \r\nAraucaria araucana tree-ring chronologies in Argentina: \r\nspatial growth variations and climate influences. \r\nTrees - Structure and Function, Vol. 26, pp. 443-458.\r\nDOI 10.1007/s00468-011-0605-3 ","edition":null,"identifier":{"id":"10.1007/s00468-011-0605-3 ","type":"doi","url":"http://dx.doi.org/10.1007/s00468-011-0605-3 "},"issue":null,"journal":"Trees - Structure and Function","pages":null,"pubRank":"1","pubYear":2012,"reportNumber":null,"title":"Araucaria araucana tree-ring chronologies in Argentina:  spatial growth variations and climate influences","type":"publication","volume":null}],"reconstruction":"N","scienceKeywords":["ARAR","Araucaria araucana (Molina) K. 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