# 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: Central Andes composite 16 Tree ring width #-------------------- # Investigators # Investigators: Villalba, R.; Neukom, R. #-------------------- # Description_and_Notes # Description: Uploaded by R. Neukom, data obtained from original authors. # These are not raw data but processed and truncated chronologies, representing a composite of two or more individual sites. Details see (Neukom & Gergis 2011, The Holocene, DOI: 10.1177/0959683611427335). For the raws contact the authors or/and check ITRDB. #-------------------- # Publication # Authors: Neukom, R.; Gergis, J. # Published_Date_or_Year: 2012 # Published_Title: Southern Hemisphere high-resolution palaeoclimate records of the last 2000 years # Journal_Name: The Holocene # Volume: 22 # Issue: 5 # Pages: 501-524 # DOI: 10.1177/0959683611427335 #-------------------- # Publication # Authors: Villalba, R.; Boninsegna, J. A.; Veblen, T. T.; Schmelter, A.; Rubulis, S. # Published_Date_or_Year: 1997 # Published_Title: Recent trends in tree-ring records from high elevation sites in the Andes of northern Patagonia # Journal_Name: Climatic Change # Volume: 36 # Issue: 03. Apr # Pages: 425-454 # Abstract: A new set of tree-ring records from the Andes of northern Patagonist, Argentina (41 degrees S) was used to evaluate recent (i.e., fast 250 years) regional trends in tree growth at upper treeline. Fifteen tree-ring chronologies from 1200 to 1750 m elevation were developed for Nathofagus pumilio, the dominant subalpine species. Samples were collected along three elevational transects located along the steep west-to-east precipitation gradient from the main Cordillera (mean annual precipitation > 4000 mm) to an eastern outlier of the Andes (mean annual precipitation > 2000 mm). Ring-width variation in higher elevation tree-ring records from the main Cordillera is mainly related to changes in temperature and precipitation during spring and summer. However, the response to climatic variation is also influenced by local site factors of elevation and exposure. Based on the relationships between Nothofagus growth and climate, we reconstructed changes in snow cover duration in late spring and variations in mean annual temperature since A.D. 1750. Abrupt interannual changes in the mean annual temperature reconstruction are associated with strong to very strong Fl Nino-Southern Oscillation events. At upper treeline, tree growth since 1977 has been anomalously high. A sharp rise in global average tropospheric temperatures has been recorded since the mid-1970s in response to an enhanced tropical hydrologic cycle due to an increase in temperature of the tropical Pacific. Temperatures in northern Patagonia have been anomalously high throughout the 1980s, which is consistent with positive temperature anomalies in the tropical Pacific and along the western coast of the Americas at ca. 40 degrees S latitude. Our 250-year temperature reconstruction indicates that although the persistently high temperatures of the 1980s are uncommon during this period, they are not unprecedented. Tropical climatic episodes similar to that observed during the 1980s may have occurred in the recent past under pre-industrial carbon dioxide levels. #-------------------- # Funding_Agency #-------------------- # Site_Information # Site_Name: Central Andes composite 16 # Location: South America>Argentina # Region: PAGES LOTRED SA # Country: Argentina # Northernmost_Latitude: -41.13 # Southernmost_Latitude: -41.13 # Easternmost_Longitude: -71.8 # Westernmost_Longitude: -71.8 # Elevation: 1500 #-------------------- # Data_Collection # Collection_Name: Tree ring width for PAGES LOTRED SA regional reconstructions # Earliest_Year: 1845 # Most_Recent_Year: 1991 # 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 ## NOPU_Cluster_2Ax_Data_20a_spline tree ring width,wood,,unitless,,tree ring,composite chronology,20 year spline,N ## NOPU_Cluster_2Ax_Data_200a_spline tree ring width,wood,,unitless,,tree ring,composite chronology,200 year spline,N ## NOPU_Cluster_2Ax_Data_NegExp tree ring width,wood,,unitless,,tree ring,composite chronology,negative exponential,N ## NOPU_Cluster_2Ax_Data_RCS.10 tree ring width,wood,,unitless,,tree ring,composite chronology,RCS,N ## NOPU_Cluster_2Ax_Data_Signalfree_2 tree ring width,wood,,unitless,,tree ring,composite chronology,signal free,N #-------------------- # Data # Missing values: NA year NOPU_Cluster_2Ax_Data_20a_spline NOPU_Cluster_2Ax_Data_200a_spline NOPU_Cluster_2Ax_Data_NegExp NOPU_Cluster_2Ax_Data_RCS.10 NOPU_Cluster_2Ax_Data_Signalfree_2 1845 -0.074 -0.202 -0.148 -0.973 -0.835 1846 0.547 -0.143 -0.024 -0.043 -0.668 1847 -0.468 -0.658 -0.582 -1.3 -1.104 1848 -2.264 -1.838 -1.706 -1.878 -2.026 1849 -1.597 -1.468 -1.436 -1.594 -1.575 1850 1.634 0.471 0.498 0.014 -0.084 1851 1.278 0.327 0.121 -0.286 -0.352 1852 1.638 0.29 0.327 0.022 -0.23 1853 -0.012 -0.553 -0.678 -0.624 -0.824 1854 -0.146 -0.763 -0.78 -0.913 -0.958 1855 -0.12 -0.653 -0.722 -0.946 -1.101 1856 0.505 -0.579 -0.469 -0.908 -1.014 1857 -1.352 -1.425 -1.417 -1.481 -1.626 1858 0.16 -0.619 -0.662 -0.803 -0.958 1859 0.007 -0.737 -0.758 -0.897 -1.05 1860 -1.257 -1.454 -1.423 -1.5 -1.608 1861 2.235 0.519 0.498 0.089 -0.113 1862 -0.529 -1.035 -1.077 -1.405 -1.372 1863 -0.747 -1.272 -1.203 -1.532 -1.492 1864 0.279 -0.641 -0.656 -0.746 -1.014 1865 0.757 -0.429 -0.458 -0.646 -0.791 1866 0.868 -0.336 -0.379 -0.522 -0.585 1867 -0.188 -0.825 -0.802 -1.054 -1.119 1868 0.171 -0.695 -0.752 -0.976 -1.026 1869 -0.001 -0.712 -0.744 -0.905 -1.14 1870 0.715 -0.474 -0.494 -0.638 -0.865 1871 -1.823 -1.771 -1.747 -1.735 -1.814 1872 -2.091 -1.966 -1.95 -1.905 -1.993 1873 -0.824 -1.037 -1.134 -1.289 -1.298 1874 0.275 -0.551 -0.604 -0.667 -0.829 1875 1.335 0.426 0.347 -0.095 -0.036 1876 1.205 0.423 0.319 0.084 0.051 1877 0.769 0.197 0.141 -0.065 -0.087 1878 1.32 0.57 0.506 0.211 0.304 1879 -0.648 -0.794 -0.829 -1.022 -0.88 1880 -0.081 -0.352 -0.395 -0.538 -0.442 1881 -1.299 -1.117 -1.099 -1.116 -1.134 1882 0.531 0.134 0.077 -0.111 0.054 1883 -0.227 -0.65 -0.697 -0.784 -0.674 1884 0.447 -0.239 -0.134 -0.343 -0.251 1885 -1.766 -1.439 -1.384 -1.394 -1.396 1886 -0.311 -0.446 -0.428 -0.443 -0.48 1887 0.256 -0.208 -0.2 -0.132 -0.191 1888 0.439 -0.163 -0.159 -0.005 -0.158 1889 -0.039 -0.29 -0.247 -0.2 -0.361 1890 2.45 1.719 1.748 1.603 1.73 1891 0.895 0.332 0.377 0.454 0.262 1892 -0.878 -0.902 -0.846 -0.781 -0.883 1893 0.099 -0.282 -0.266 -0.173 -0.203 1894 -0.058 -0.256 -0.211 -0.157 -0.182 1895 -1.601 -1.408 -1.343 -1.394 -1.349 1896 -0.181 -0.542 -0.458 -0.53 -0.37 1897 0.612 0.055 0.124 -0.254 0.188 1898 -0.254 -0.517 -0.483 -0.635 -0.403 1899 -1.211 -1.168 -1.261 -1.089 -1.211 1900 -0.575 -0.604 -0.601 -0.549 -0.424 1901 0.267 0.245 0.234 0.559 0.495 1902 -0.38 0.027 0.124 0.262 0.176 1903 0.753 1.049 1.163 1.37 1.223 1904 -0.43 0.066 0.08 0.397 0.176 1905 1.178 1.827 1.778 2.084 1.999 1906 -0.081 0.828 0.902 0.976 1.068 1907 -0.008 0.717 0.811 1.3 0.943 1908 0.868 1.465 1.503 2.265 1.68 1909 -0.422 0.349 0.391 0.962 0.54 1910 0.979 1.759 1.896 2.316 2.085 1911 0.436 1.043 1.077 1.603 1.295 1912 -0.809 -0.055 -0.027 0.405 0.242 1913 1.335 1.94 1.981 2.824 2.44 1914 -1.647 -0.879 -0.84 -0.397 -0.701 1915 -1.345 -0.78 -0.769 -0.254 -0.618 1916 -0.162 0.287 0.314 0.776 0.501 1917 1.14 1.439 1.454 2.292 1.674 1918 1.366 1.255 1.366 2.316 1.462 1919 0.332 0.347 0.382 1.235 0.51 1920 0.072 0.214 0.228 0.843 0.525 1921 -1.548 -1.08 -1.077 -0.657 -1.003 1922 -0.663 -0.426 -0.436 0.065 -0.331 1923 -0.644 -0.477 -0.464 -0.281 -0.304 1924 1.81 1.343 1.366 2.216 1.665 1925 -0.552 -0.398 -0.423 0.311 -0.391 1926 -0.629 -0.358 -0.321 0.092 -0.215 1927 0.547 0.536 0.555 1.262 0.844 1928 -0.326 -0.188 -0.145 -0.211 0.08 1929 0.662 0.505 0.5 0.9 0.689 1930 0.183 0.182 0.182 0.627 0.438 1931 0.34 0.225 0.259 0.568 0.525 1932 1.071 0.661 0.586 1.143 0.862 1933 0.114 -0.103 -0.107 0.092 0.045 1934 0.792 0.202 0.228 0.811 0.403 1935 -0.636 -0.735 -0.697 -0.322 -0.561 1936 -0.464 -0.619 -0.599 -0.23 -0.445 1937 -0.793 -0.842 -0.785 -0.597 -0.633 1938 -1.153 -1.111 -1.046 -0.762 -1.017 1939 0.953 0.239 0.267 0.832 0.492 1940 -0.008 -0.338 -0.302 0.232 -0.105 1941 -1.774 -1.462 -1.417 -1.011 -1.316 1942 0.543 0.092 0.099 0.924 0.292 1943 0.627 -0.064 -0.074 0.832 0.101 1944 0.298 -0.228 -0.236 0.481 0.054 1945 0.29 -0.194 -0.151 0.535 0.042 1946 0.968 0.301 0.281 0.973 0.57 1947 1.297 0.216 0.182 1.13 0.537 1948 0.478 -0.154 -0.126 0.219 0.003 1949 0.681 -0.109 -0.099 0.162 0.045 1950 -1.483 -1.434 -1.395 -1.386 -1.298 1951 -0.564 -0.873 -0.849 -0.724 -0.689 1952 -1.563 -1.521 -1.489 -1.321 -1.402 1953 -1.571 -1.754 -1.717 -1.267 -1.692 1954 -0.058 -0.706 -0.697 -0.349 -0.433 1955 -1.414 -1.434 -1.398 -1.178 -1.196 1956 -0.388 -0.718 -0.695 -0.549 -0.43 1957 0.478 -0.016 -0.016 0.438 0.355 1958 -0.062 -0.075 -0.068 0.119 0.152 1959 0.083 0.16 0.157 0.378 0.435 1960 -0.277 -0.007 -0.002 0.297 0.236 1961 -0.058 0.361 0.341 0.589 0.74 1962 0.355 0.85 0.792 1.411 1.322 1963 1.24 1.702 1.638 2.378 2.109 1964 1.458 1.92 1.869 1.938 2.506 1965 0.282 0.853 0.8 1.246 1.259 1966 0.187 0.664 0.63 1.124 0.973 1967 0.899 1.08 1 1.565 1.405 1968 0.815 0.751 0.726 1.3 0.934 1969 1.033 0.618 0.583 1.176 1.077 1970 -1.77 -1.507 -1.486 -1.24 -1.304 1971 -2.03 -1.742 -1.73 -1.476 -1.608 1972 -1.015 -1.148 -1.132 -0.805 -0.949 1973 -1.49 -1.502 -1.48 -1.081 -1.319 1974 -0.169 -0.78 -0.777 -0.554 -0.436 1975 -1.525 -1.479 -1.467 -1.319 -1.271 1976 -0.602 -0.902 -0.881 -0.595 -0.537 1977 0.933 0.287 0.261 0.668 0.913 1978 0.868 0.412 0.349 0.905 0.928 1979 1.561 1.1 1.031 1.394 1.644 1980 -0.809 -0.686 -0.719 -0.408 -0.191 1981 0.282 0.301 0.259 0.511 0.865 1982 0.681 0.715 0.698 1.013 1.518 1983 1.332 1.363 1.303 1.713 2.184 1984 -0.598 -0.29 -0.252 0.149 0.45 1985 0.351 0.502 0.402 0.824 1.22 1986 -0.694 -0.454 -0.439 -0.365 0.146 1987 -0.977 -0.641 -0.626 -0.616 -0.096 1988 0.275 0.316 0.259 0.684 0.996 1989 1.125 0.955 0.737 1.324 1.551 1990 0.447 0.1 0.094 0.189 0.743 1991 -0.893 -0.695 -0.675 -0.749 -0.364