# europe_finl057 - Rutajarvi - Breitenmoser Tree Ring Chronology Data #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # # Online_Resource: # # Original_Source_URL: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Tree Rings #-------------------- # Contribution_Date # Date: 2016-01-07 #-------------------- # Title # Study_Name: europe_finl057 - Rutajarvi - Breitenmoser Tree Ring Chronology Data #-------------------- # Investigators # Investigators: Breitenmoser, P.; Bronnimann, S.; Frank, D. #-------------------- # Description_and_Notes # Description: Data from Breitenmoser 2014 Journal of past Climate supplementary, see publication for ARSTAN standardization details #-------------------- # Publication # Authors: Breitenmoser, P.; Bronnimann, S.; Frank, D. # Published_Date_or_Year: 2014-03-11 # Published_Title: Forward modelling of tree-ring width and comparison with a global network of tree-ring chronologies # Journal_Name: Climate of the Past # Volume: 10 # Edition: # Issue: # Pages: 437-449 # DOI: 10.5194/cp-10-437-2014 # Online_Resource: www.clim-past.net/10/437/2014/ # Full_Citation: # Abstract: We investigate relationships between climate and tree-ring data on a global scale using the process-based Vaganov–Shashkin Lite (VSL) forward model of tree-ring width formation. The VSL model requires as inputs only latitude, monthly mean temperature, and monthly accumulated precipitation. Hence, this simple, process-based model enables ring-width simulation at any location where monthly climate records exist. In this study, we analyse the growth response of simulated tree rings to monthly climate conditions obtained from the CRU TS3.1 data set back to 1901. Our key aims are (a) to assess the VSL model performance by examining the relations between simulated and observed growth at 2287 globally distributed sites, (b) indentify optimal growth parameters found during the model calibration, and (c) to evaluate the potential of the VSL model as an observation operator for data-assimilation-based reconstructions of climate from tree-ring width. The assessment of the growth-onset threshold temperature of approximately 4–6 C for most sites and species using a Bayesian estimation approach complements other studies on the lower temperature limits where plant growth may be sustained. Our results suggest that the VSL model skilfully simulates site level treering series in response to climate forcing for a wide range of environmental conditions and species. Spatial aggregation of the tree-ring chronologies to reduce non-climatic noise at the site level yielded notable improvements in the coherence between modelled and actual growth. The resulting distinct and coherent patterns of significant relationships between the aggregated and simulated series further demonstrate the VSL model’s ability to skilfully capture the climatic signal contained in tree-ring series. Finally, we propose that the VSL model can be used as an observation operator in data assimilation approaches to reconstruct past climate. #-------------------- # Funding_Agency # Funding_Agency_Name: Swiss National Science Foundation # Grant: #-------------------- # Site_Information # Site_Name: Rutajarvi # Location: # Country: Finland # Northernmost_Latitude: 61.92 # Southernmost_Latitude: 61.92 # Easternmost_Longitude: 26.02 # Westernmost_Longitude: 26.02 # Elevation: 150 m #-------------------- # Data_Collection # Collection_Name: europe_finl057B # Earliest_Year: 1784 # Most_Recent_Year: 2000 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"moisture"}{"T1":"3.68413408128"}{"T2":"15.3179949118"}{"M1":"0.0224845170862"}{"M2":"0.528108601821"} #-------------------- # Species # Species_Name: Scots pine # Species_Code: PISY #-------------------- # Chronology: # # # #-------------------- # Variables # # Data variables follow that are preceded by ## in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ##age age, , ,years AD, , , , ,N ##trsgi tree ring standardized growth index, tree ring, ,percent relative to mean growth, , Tree Rings, , ,N # #-------------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: nan # age trsgi 1784 1.294 1785 1.04 1786 1.171 1787 1.056 1788 1.221 1789 1.319 1790 1.069 1791 1.184 1792 1.01 1793 1.228 1794 1.266 1795 1.043 1796 0.853 1797 0.999 1798 1.027 1799 1.099 1800 1.077 1801 0.924 1802 1.13 1803 1.335 1804 1.39 1805 1.508 1806 1.424 1807 1.444 1808 0.931 1809 1.245 1810 0.995 1811 1.046 1812 1.303 1813 1.485 1814 1.004 1815 0.887 1816 0.796 1817 0.8 1818 0.77 1819 0.826 1820 0.561 1821 0.621 1822 0.534 1823 0.348 1824 0.504 1825 0.757 1826 0.671 1827 0.563 1828 0.862 1829 0.948 1830 1.086 1831 0.837 1832 0.655 1833 0.613 1834 0.65 1835 0.494 1836 0.572 1837 0.617 1838 0.718 1839 0.642 1840 0.814 1841 0.955 1842 0.956 1843 0.993 1844 1.116 1845 0.991 1846 0.912 1847 0.736 1848 1.07 1849 0.917 1850 0.854 1851 0.977 1852 0.857 1853 0.569 1854 0.653 1855 0.576 1856 0.669 1857 0.761 1858 0.69 1859 0.632 1860 0.918 1861 1.026 1862 0.962 1863 0.99 1864 0.961 1865 1.059 1866 1.142 1867 1.041 1868 1.214 1869 1.148 1870 1.321 1871 1.146 1872 0.997 1873 1.057 1874 0.942 1875 0.839 1876 0.536 1877 0.541 1878 0.555 1879 0.465 1880 0.56 1881 0.526 1882 0.731 1883 0.69 1884 0.786 1885 0.826 1886 1.044 1887 1.183 1888 0.955 1889 0.837 1890 1.217 1891 1.111 1892 1.247 1893 1.094 1894 1.129 1895 0.862 1896 0.89 1897 0.91 1898 0.927 1899 0.741 1900 0.759 1901 0.841 1902 0.839 1903 1.116 1904 1.026 1905 1.14 1906 1.153 1907 1.175 1908 1.177 1909 1.011 1910 1.06 1911 0.824 1912 1.03 1913 1.009 1914 1.108 1915 1.324 1916 1.173 1917 0.963 1918 1.02 1919 1.117 1920 1.097 1921 1.221 1922 1.278 1923 1.157 1924 1.245 1925 1.173 1926 0.919 1927 1.123 1928 0.887 1929 1.011 1930 0.954 1931 0.956 1932 1.103 1933 0.809 1934 0.842 1935 0.887 1936 1.01 1937 0.975 1938 1.136 1939 1.042 1940 0.613 1941 0.771 1942 0.695 1943 0.614 1944 0.657 1945 0.95 1946 0.894 1947 0.913 1948 0.827 1949 1.088 1950 1.1 1951 0.846 1952 1.05 1953 1.155 1954 1.212 1955 0.933 1956 0.601 1957 1.053 1958 0.919 1959 1.018 1960 0.827 1961 1.081 1962 1.213 1963 1.305 1964 1.31 1965 1.28 1966 1.186 1967 1.331 1968 1.127 1969 0.962 1970 1.043 1971 1.065 1972 1.018 1973 1.067 1974 1.124 1975 1.316 1976 1.248 1977 0.91 1978 0.958 1979 1.009 1980 0.953 1981 0.749 1982 0.448 1983 0.667 1984 0.71 1985 0.64 1986 0.902 1987 1.037 1988 1.154 1989 1.115 1990 1.203 1991 1.213 1992 0.89 1993 0.873 1994 1.033 1995 0.855 1996 0.698 1997 0.828 1998 0.669 1999 0.722 2000 1.027