noaa-tree-20466 Northern Patagonia 60 Year Tree-Ring Oxygen Isotope Data Lavergne, A.; Daux, V.; Villalba, R.; Pierre, M.; Stievenard, M.; Vimeux, F.; Srur, A.M. Northern Patagonia 60 Year Tree-Ring Oxygen Isotope Data 2016-09-07 NCDC-Paleoclimatology ONLINE Files 10.25921/h9x5-r042 https://www.ncdc.noaa.gov/paleo/study/20466 Investigator A. Lavergne Investigator V. Daux Investigator R. Villalba Investigator M. Pierre Investigator M. Stievenard Investigator F. Vimeux Investigator A.M. Srur earth science paleoclimate tree ring delta 18O,alpha cellulose,null,per mil SMOW,null,tree ring,composited,isotope ratio mass spectrometry,N,chronology earth science paleoclimate tree ring age,null,null,year Common Era,null,tree ring,null,null,N,null earth science paleoclimate tree-ring oxygen isotopes geoscientificInformation FICU Fitzroya cupressoides (Molina) I.M. Johnst. alerce Patagonian cypress 1952 AD 2011 AD -2 cal yr BP -61 cal yr BP Complete -41.25 -41.13 -71.8 -71.28 950 1612 Continent South America Argentina La Almohadilla>LATITUDE -41.18>LONGITUDE -71.78 Continent South America Argentina Rio Alerce>LATITUDE -41.18>LONGITUDE -71.77 Continent South America Argentina Glaciar Frias 2>LATITUDE -41.13>LONGITUDE -71.8 Continent South America Argentina Paso de la Nubes>LATITUDE -41.15>LONGITUDE -71.8 Continent South America Argentina Challhuaco>LATITUDE -41.25>LONGITUDE -71.28 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Aliénor Lavergne, Valérie Daux, Ricardo Villalba, Monique Pierre, Michel Stievenard, Françoise Vimeux, Ana Marina Srur 2016 Journal of Geophysical Research: Biogeosciences 121 3 767-776 10.1002/2015JG003260 http://onlinelibrary.wiley.com/doi/10.1002/2015JG003260/full

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. STUDY NOTES: 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. IITRDB16

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/nubes2016d18o.txt Data File; Paso de la Nubes Tree-Ring Oxygen Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/glaciarfrias2016d18o.txt Data File; Glaciar Frias Tree-Ring Oxygen Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/alerce2016d18o.txt Data File; Rio Alerce Tree-Ring Oxygen Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/challhuaco2016d18o.txt Data File; Challhuaco Tree-Ring Oxygen Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/treering/isotope/southamerica/argentina/almohadilla2016d18o.txt Data File; La Almohadilla Tree-Ring Oxygen Isotope Data USA/NOAA DIF Version 9.8.4 2019-03-01 2019-03-01