# europe_turk028 - Buyukduz Forest - 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_turk028 - Buyukduz Forest - 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: Buyukduz Forest # Location: # Country: Turkey # Northernmost_Latitude: 41.2 # Southernmost_Latitude: 41.2 # Easternmost_Longitude: 32.62 # Westernmost_Longitude: 32.62 # Elevation: 900 m #-------------------- # Data_Collection # Collection_Name: europe_turk028B # Earliest_Year: 1761 # Most_Recent_Year: 2003 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"moisture"}{"T1":"3.5245199062"}{"T2":"13.7429604692"}{"M1":"0.0225104064207"}{"M2":"0.58045005133"} #-------------------- # Species # Species_Name: durmast oak # Species_Code: QUPE #-------------------- # 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 1761 1.246 1762 1.225 1763 1.335 1764 0.984 1765 1.013 1766 1.4 1767 1.402 1768 1.215 1769 1.051 1770 0.909 1771 1.15 1772 0.909 1773 1.033 1774 0.883 1775 1.03 1776 0.867 1777 0.586 1778 0.644 1779 0.917 1780 0.789 1781 0.701 1782 0.511 1783 0.89 1784 0.939 1785 0.978 1786 0.896 1787 1.049 1788 0.502 1789 0.657 1790 0.439 1791 0.435 1792 0.541 1793 0.742 1794 0.769 1795 1.068 1796 0.977 1797 0.598 1798 0.819 1799 0.77 1800 0.891 1801 0.645 1802 0.685 1803 0.597 1804 0.858 1805 1.203 1806 0.73 1807 0.629 1808 0.84 1809 1.013 1810 0.47 1811 1.08 1812 0.979 1813 0.951 1814 1.324 1815 0.653 1816 1.138 1817 1.195 1818 0.732 1819 0.944 1820 0.908 1821 0.836 1822 1.022 1823 0.723 1824 0.708 1825 0.873 1826 0.969 1827 0.694 1828 0.679 1829 1.107 1830 0.841 1831 1.096 1832 1.11 1833 1.316 1834 0.687 1835 0.896 1836 0.835 1837 0.906 1838 1.061 1839 1.044 1840 0.782 1841 1.161 1842 0.794 1843 1.195 1844 0.843 1845 0.846 1846 0.819 1847 0.932 1848 0.985 1849 0.847 1850 1.037 1851 0.868 1852 0.996 1853 0.801 1854 1.013 1855 0.872 1856 1.091 1857 1.459 1858 1.384 1859 1.43 1860 1.536 1861 1.053 1862 1.035 1863 1.055 1864 1.164 1865 1.077 1866 0.822 1867 0.966 1868 0.971 1869 0.955 1870 1.126 1871 1.185 1872 1.185 1873 0.83 1874 1.138 1875 0.77 1876 0.971 1877 1.306 1878 1.252 1879 1.093 1880 1.038 1881 1.288 1882 1.118 1883 1.239 1884 1.167 1885 1.176 1886 1.218 1887 0.742 1888 1.011 1889 1.225 1890 0.938 1891 0.84 1892 0.896 1893 0.901 1894 0.784 1895 0.691 1896 0.856 1897 1.074 1898 0.913 1899 0.837 1900 0.989 1901 1.135 1902 0.872 1903 1.035 1904 0.746 1905 1.043 1906 1.301 1907 0.948 1908 0.822 1909 0.861 1910 1.077 1911 0.952 1912 0.896 1913 1.074 1914 1.215 1915 0.837 1916 0.989 1917 1.151 1918 0.91 1919 1.007 1920 1.099 1921 1.232 1922 1.247 1923 1.178 1924 1.158 1925 1.192 1926 0.979 1927 0.628 1928 0.663 1929 0.842 1930 0.625 1931 0.78 1932 0.632 1933 0.948 1934 0.781 1935 0.714 1936 0.987 1937 0.792 1938 0.795 1939 0.607 1940 0.753 1941 0.719 1942 0.762 1943 0.944 1944 0.734 1945 0.617 1946 0.774 1947 0.444 1948 0.738 1949 0.807 1950 0.936 1951 0.985 1952 0.88 1953 0.814 1954 1.144 1955 0.523 1956 0.936 1957 0.7 1958 0.85 1959 0.955 1960 0.969 1961 0.917 1962 0.899 1963 0.991 1964 1.033 1965 0.789 1966 1.143 1967 0.977 1968 0.85 1969 0.906 1970 1.291 1971 1.25 1972 1.191 1973 1.234 1974 0.94 1975 0.995 1976 1.025 1977 0.876 1978 0.988 1979 1.165 1980 1.028 1981 0.88 1982 1.006 1983 1.076 1984 1.17 1985 1.057 1986 1.089 1987 1.131 1988 1.316 1989 1.044 1990 1.21 1991 1.395 1992 1.228 1993 0.969 1994 0.936 1995 0.955 1996 1.179 1997 1.346 1998 1.751 1999 1.49 2000 1.257 2001 1.486 2002 1.578 2003 1.333