# europe_brit017 - Ballochbuite - 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_brit017 - Ballochbuite - 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: Ballochbuite # Location: # Country: United Kingdom # Northernmost_Latitude: 56.95 # Southernmost_Latitude: 56.95 # Easternmost_Longitude: -3.32 # Westernmost_Longitude: -3.32 # Elevation: 381 m #-------------------- # Data_Collection # Collection_Name: europe_brit017B # Earliest_Year: 1737 # Most_Recent_Year: 1978 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"temperature"}{"T1":"3.59596466284"}{"T2":"17.6944064451"}{"M1":"0.0227074575387"}{"M2":"0.435416423794"} #-------------------- # 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 1737 0.837 1738 1.182 1739 1.018 1740 0.883 1741 1.053 1742 0.915 1743 1.009 1744 0.997 1745 0.954 1746 1.017 1747 1.106 1748 0.996 1749 1.086 1750 1.231 1751 1.012 1752 1.16 1753 1.064 1754 1.254 1755 1.179 1756 0.937 1757 0.8 1758 0.742 1759 0.842 1760 0.878 1761 0.999 1762 0.751 1763 0.992 1764 1.042 1765 0.816 1766 1.071 1767 1.037 1768 1.099 1769 1.169 1770 0.963 1771 0.744 1772 0.772 1773 0.899 1774 0.824 1775 0.886 1776 1.109 1777 1.105 1778 1.084 1779 1.349 1780 1.01 1781 1.045 1782 0.896 1783 1.086 1784 0.909 1785 0.839 1786 0.732 1787 0.911 1788 0.946 1789 1.1 1790 1.046 1791 1.138 1792 1.043 1793 0.842 1794 0.963 1795 0.969 1796 0.933 1797 1.026 1798 1.076 1799 0.872 1800 0.865 1801 0.928 1802 0.938 1803 0.791 1804 0.887 1805 0.967 1806 0.853 1807 0.9 1808 1.161 1809 0.931 1810 0.851 1811 1.059 1812 1.145 1813 1.259 1814 0.982 1815 0.999 1816 0.826 1817 0.981 1818 0.939 1819 1.119 1820 0.912 1821 0.932 1822 1.058 1823 1.154 1824 1.266 1825 1.112 1826 0.913 1827 1.116 1828 1.009 1829 1.092 1830 1.288 1831 1.377 1832 1.306 1833 1.048 1834 1.168 1835 0.979 1836 0.825 1837 0.922 1838 0.855 1839 0.719 1840 0.786 1841 0.901 1842 0.815 1843 0.897 1844 0.863 1845 1.029 1846 1.306 1847 1.211 1848 1.026 1849 1.177 1850 1.063 1851 0.853 1852 0.825 1853 0.75 1854 0.906 1855 0.777 1856 0.69 1857 0.999 1858 0.796 1859 0.84 1860 0.79 1861 0.937 1862 1.094 1863 1.149 1864 0.937 1865 0.754 1866 0.746 1867 0.605 1868 0.764 1869 0.618 1870 0.751 1871 0.81 1872 0.902 1873 0.864 1874 0.96 1875 1.121 1876 0.99 1877 0.94 1878 1.162 1879 0.764 1880 1.078 1881 0.812 1882 0.986 1883 0.629 1884 0.609 1885 0.71 1886 0.863 1887 0.811 1888 0.764 1889 0.904 1890 1.052 1891 1.017 1892 0.923 1893 1.068 1894 0.994 1895 0.801 1896 0.923 1897 1.047 1898 1.014 1899 1.002 1900 0.948 1901 1.07 1902 0.912 1903 1.143 1904 1.227 1905 1.187 1906 0.923 1907 0.85 1908 0.772 1909 0.744 1910 0.97 1911 0.812 1912 0.955 1913 0.866 1914 0.775 1915 0.713 1916 0.764 1917 0.806 1918 0.852 1919 0.858 1920 0.828 1921 0.788 1922 0.825 1923 0.965 1924 1.122 1925 1.221 1926 1.33 1927 0.819 1928 0.729 1929 0.963 1930 0.901 1931 0.872 1932 1.225 1933 1.219 1934 1.014 1935 1.063 1936 1.182 1937 1.082 1938 1.184 1939 1.229 1940 0.751 1941 0.966 1942 1.007 1943 1.356 1944 1.271 1945 1.389 1946 1.174 1947 1.216 1948 1.047 1949 1.672 1950 1.255 1951 1.099 1952 1.196 1953 1.388 1954 1.077 1955 0.994 1956 0.827 1957 0.924 1958 0.952 1959 0.999 1960 0.873 1961 0.643 1962 0.722 1963 0.983 1964 1.1 1965 1.071 1966 1.006 1967 1.174 1968 0.938 1969 0.818 1970 0.903 1971 1.27 1972 1.308 1973 1.145 1974 0.858 1975 0.913 1976 0.94 1977 0.886 1978 1.158