# WDC PALEO DATA SUBMISSION for PAGES 2k database # # Created 28 Feb 2013 by Raphi Neukom based on WDC template from 21 Dec 2012 using make_NOAA_files.r #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original reference when using these data, # plus the Online Resource and date accessed. # # Original_Source_URL: # # Archive: Tree Rings #-------------------- # Contribution_Date # Date: 2013-02-28 #-------------------- # Title # Study_Name: Vilches Tree ring width #-------------------- # Investigators # Investigators: Lara, A. #-------------------- # Description_and_Notes # Description: Uploaded by R. Neukom, data obtained from original authors. # These are not raw data but processed and truncated chronologies. Details see (Neukom & Gergis 2011, The Holocene, DOI: 10.1177/0959683611427335). For the raws contact the authors or check ITRDB. #-------------------- # Publication # Authors: Lara, A.; Aravena, J. C.; Villalba, R.; Wolodarsky-Franke, A.; Luckman, B.; Wilson, R. # Published_Date_or_Year: 2001 # Published_Title: Dendroclimatology of high-elevation Nothofagus pumilio forests at their northern distribution limit in the central Andes of Chile # Journal_Name: Canadian Journal of Forest Research-Revue Canadienne De Recherche Forestiere # Volume: 31 # Issue: 6 # Pages: 925-936 # Abstract: Nothofagus pumilio (Poepp et Endl.) Krasser, is a deciduous tree species that grows in Chile and adjacent Argentina between 36 and 56 degreesS, often forming the Andean tree line. This paper presents the first eight tree-ring chronologies from N. pumilio at its northern range limit in the central Andes of Chile (36-39 degreesS) and the first precipitation reconstruction for this region. Samples were taken from upper tree-line stands (1500-1700 m elevation) in three study areas: Vilches, Laguna del Laja, and Conguillio. Results indicate that, at the northern sites (Vilches and Laguna del Laja), the tree-ring growth of N. pumilio is positively correlated with late-spring and early summer precipitation and that higher temperatures reduce radial growth, probably because of an increase in evapotranspiration and decrease in water availability. At the southern Conguillio study area, radial growth was negatively correlated with late-spring and early summer precipitation. The presence of volcanic activity in this latter study area, which might have masked the climate signal, did not seem to have a significant influence on radial growth. A reconstruction of November-December (summer) precipitation for the period 1837-1996 from N. pumilio tree-ring chronologies accounted for 37% of instrumentally recorded precipitation variance. This is the first precipitation reconstruction from N. pumilio chronologies. Only temperature and snow cover have previously been reconstructed using this species. The reconstruction indicates that the driest and wettest 25-year periods within the past 160 years are 1890-1914 and 1917-1941, respectively. #-------------------- # Funding_Agency #-------------------- # Site_Information # Site_Name: Vilches (Site ID: VIL) # Location: South America>Chile # Region: PAGES LOTRED SA # Country: Chile # Northernmost_Latitude: -35.6 # Southernmost_Latitude: -35.6 # Easternmost_Longitude: -71.03 # Westernmost_Longitude: -71.03 # Elevation: 1530 #-------------------- # Data_Collection # Collection_Name: Tree ring width for PAGES LOTRED SA regional reconstructions # Earliest_Year: 1880 # Most_Recent_Year: 1996 # Time_Unit: AD # Notes: These are processed data. Years with less than 5 samples and EPS<0.85 are removed. Raw data can be obtained from original authors #-------------------- # Species # Species Name: Nothofagus pumilio (NOPU) #-------------------- # Chronology: #-------------------- # Variables # Short_name What,Material,Error,Units, Anomaly_period,Archive,Details,Method,Data_type ## year age, , ,AD, ,tree rings, ,counting,N ## VILCHES_20a_spline tree ring width,wood,,unitless,,tree ring,chronology,20 year spline,N ## VILCHES_200a_spline tree ring width,wood,,unitless,,tree ring,chronology,200 year spline,N ## VILCHES_NegExp tree ring width,wood,,unitless,,tree ring,chronology,negative exponential,N ## VILCHES_RCS.10 tree ring width,wood,,unitless,,tree ring,chronology,RCS,N ## VILCHES_Signalfree_2 tree ring width,wood,,unitless,,tree ring,chronology,signal free,N #-------------------- # Data # Missing values: NA year VILCHES_20a_spline VILCHES_200a_spline VILCHES_NegExp VILCHES_RCS.10 VILCHES_Signalfree_2 1880 0.648 0.606 0.601 0.325 0.299 1881 -1.179 -1.085 -1.062 -0.931 -1.281 1882 -0.218 -0.275 -0.293 -0.405 -0.476 1883 -0.19 -0.175 -0.206 -0.474 -0.407 1884 0.665 0.544 0.519 0.165 0.187 1885 0.485 0.122 0.06 0.117 -0.236 1886 0.957 0.702 0.717 0.484 0.358 1887 1.873 1.689 1.766 0.963 1.36 1888 -0.409 -0.548 -0.501 -0.707 -0.682 1889 -1.387 -1.363 -1.328 -1.501 -1.502 1890 -0.875 -1.047 -1.019 -1.147 -1.193 1891 -0.527 -0.836 -0.811 -0.905 -1.011 1892 -0.504 -0.73 -0.728 -0.849 -0.937 1893 -1.274 -1.281 -1.27 -1.263 -1.453 1894 -0.482 -0.433 -0.434 -0.672 -0.736 1895 0.861 0.774 0.809 0.467 0.324 1896 0.889 0.846 0.876 0.549 0.452 1897 1.148 1.243 1.36 0.873 0.879 1898 2.075 2.01 2.061 1.399 1.414 1899 -1.876 -1.483 -1.492 -1.449 -1.693 1900 -0.004 0.094 0.074 -0.116 -0.343 1901 -0.488 -0.251 -0.39 -0.616 -0.721 1902 -0.246 -0.17 -0.095 -0.275 -0.407 1903 0.03 0.036 0.127 -0.271 -0.167 1904 0.985 0.678 0.659 0.54 0.314 1905 0.794 0.324 0.408 0.04 0.059 1906 0.474 0.185 0.166 0.109 -0.118 1907 -0.06 -0.285 -0.264 -0.37 -0.52 1908 -0.077 -0.462 -0.434 -0.439 -0.736 1909 -0.684 -0.927 -0.931 -0.979 -1.217 1910 0.125 -0.438 -0.4 -0.469 -0.658 1911 -0.926 -1.219 -1.168 -1.354 -1.389 1912 -0.235 -0.683 -0.617 -0.62 -0.878 1913 -0.566 -0.984 -0.965 -0.81 -1.119 1914 -1.96 -1.914 -1.826 -1.893 -1.924 1915 0.614 0.031 0.151 -0.249 -0.118 1916 0.637 0.065 0.161 -0.172 -0.113 1917 -0.246 -0.453 -0.347 -0.297 -0.481 1918 0.732 0.343 0.422 -0.047 0.245 1919 2.143 1.416 1.655 1.766 1.497 1920 0.918 0.295 0.34 0.268 0.27 1921 0.49 -0.548 -0.438 0.01 -0.496 1922 -0.926 -1.138 -1.043 -1.173 -1.075 1923 -1.443 -1.435 -1.371 -1.471 -1.389 1924 -0.808 -0.96 -0.869 -0.944 -0.888 1925 -1.336 -1.258 -1.159 -1.298 -1.197 1926 -0.414 -0.453 -0.361 -0.478 -0.358 1927 -1.117 -0.869 -0.815 -0.577 -0.913 1928 -0.561 -0.213 -0.148 0.169 -0.236 1929 0.406 1.162 1.287 1.537 1.315 1930 2.963 3.701 3.874 3.785 3.725 1931 1.103 1.862 2.037 2.055 2.007 1932 -0.622 0.309 0.354 0.631 0.393 1933 0.597 1.267 1.471 1.611 1.477 1934 -0.094 0.807 0.934 0.963 1.05 1935 -0.858 -0.088 0.05 0.359 0.196 1936 -0.769 -0.007 0.122 0.23 0.265 1937 -0.403 0.223 0.34 0.571 0.427 1938 -0.184 0.415 0.48 0.23 0.535 1939 -0.999 -0.223 -0.119 -0.331 0.039 1940 2.216 2.614 2.709 3.207 2.837 1941 2.176 2.293 2.443 2.638 2.631 1942 1.35 1.43 1.606 1.645 1.787 1943 -1.915 -1.646 -1.565 -1.229 -1.423 1944 -2.415 -2.192 -2.121 -1.799 -1.953 1945 0.333 -0.122 0.021 0.152 0.088 1946 1.125 0.453 0.601 1.058 0.81 1947 -0.842 -1.104 -0.99 -0.789 -0.795 1948 -0.347 -0.836 -0.762 -0.431 -0.555 1949 -1.072 -1.416 -1.318 -1.492 -1.114 1950 -0.117 -0.769 -0.656 -0.37 -0.393 1951 1.834 0.64 0.809 1.106 1.045 1952 -0.358 -0.903 -0.869 -0.724 -0.692 1953 -0.296 -0.841 -0.733 -0.547 -0.451 1954 -0.679 -1.109 -1.028 -0.836 -0.736 1955 0.17 -0.136 -0.028 0.217 0.216 1956 0.783 0.338 0.446 0.933 0.751 1957 -0.083 -0.266 -0.148 0.234 0.187 1958 0.929 0.764 0.896 1.132 1.31 1959 0.895 0.4 0.519 0.812 0.913 1960 -1.145 -1.042 -0.98 -0.374 -0.716 1961 -0.302 -0.347 -0.216 0.277 0.01 1962 -1.673 -1.248 -1.178 -0.728 -0.923 1963 0.518 0.534 0.649 0.963 1.055 1964 1.395 1.358 1.481 1.852 1.973 1965 0.755 0.774 0.881 1.17 1.276 1966 0.755 0.726 0.765 0.782 1.198 1967 0.058 -0.06 -0.042 0.584 0.363 1968 -1.617 -1.334 -1.284 -0.849 -0.918 1969 -0.325 -0.294 -0.245 -0.012 0.128 1970 0.878 0.621 0.635 1.442 1.119 1971 0.041 0.098 0.132 0.64 0.653 1972 -1.381 -1.176 -1.135 -0.797 -0.78 1973 -0.724 -0.707 -0.709 -0.103 -0.191 1974 -0.015 0.242 0.248 0.338 0.825 1975 0.642 1.013 1.041 1.037 1.688 1976 0.035 0.534 0.562 0.959 1.153 1977 0.316 0.793 0.804 1.088 1.507 1978 -0.055 0.41 0.499 1.011 0.982 1979 1.367 1.703 1.592 1.757 2.326 1980 1.575 1.909 1.863 1.99 2.636 1981 -0.875 -0.386 -0.405 -0.275 -0.157 1982 -0.347 -0.031 -0.071 0.303 0.515 1983 0.091 0.247 0.224 0.303 0.8 1984 -1.477 -1.119 -1.168 -1.104 -0.834 1985 -0.549 -0.433 -0.467 -0.379 0.187 1986 0.457 0.309 0.282 0.631 1.05 1987 0.086 -0.079 -0.115 0.139 0.525 1988 -0.527 -0.826 -0.791 -0.189 -0.378 1989 -0.965 -1.047 -1.115 -0.668 -0.643 1990 0.389 0.113 -0.124 0.666 0.481 1991 0.361 0.142 0.074 0.169 0.731 1992 0.704 0.309 0.253 0.281 0.982 1993 0.412 0.151 0.055 0.346 0.859 1994 0.389 0.098 0.035 0.359 0.825 1995 -0.976 -0.927 -1.062 -0.987 -0.397 1996 -1.707 -1.435 -1.405 -0.232 -0.275