# asia_russ059w - Uel-Siktjach river - 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: asia_russ059w - Uel-Siktjach river - 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: Uel-Siktjach river # Location: # Country: Russia # Northernmost_Latitude: 69.28 # Southernmost_Latitude: 69.28 # Easternmost_Longitude: 125.33 # Westernmost_Longitude: 125.33 # Elevation: 130 m #-------------------- # Data_Collection # Collection_Name: asia_russ059wB # Earliest_Year: 1754 # Most_Recent_Year: 1990 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"moisture"}{"T1":"4.27790464567"}{"T2":"14.7725131446"}{"M1":"0.0227217250219"}{"M2":"0.510637758433"} #-------------------- # Species # Species_Name: Dahurian larch # Species_Code: LAGM #-------------------- # 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 1754 0.536 1755 0.872 1756 1.052 1757 0.798 1758 0.848 1759 1.108 1760 1.208 1761 1.074 1762 0.678 1763 1.147 1764 0.907 1765 0.541 1766 1.538 1767 1.326 1768 1.349 1769 1.2 1770 1.036 1771 0.931 1772 0.602 1773 1.052 1774 0.815 1775 0.687 1776 0.812 1777 0.866 1778 1.025 1779 0.46 1780 0.72 1781 0.547 1782 0.864 1783 0.928 1784 1.201 1785 1.333 1786 1.231 1787 1.259 1788 1.129 1789 1.662 1790 1.397 1791 0.937 1792 0.972 1793 0.926 1794 0.791 1795 0.885 1796 0.606 1797 0.858 1798 1.163 1799 0.904 1800 0.618 1801 0.715 1802 0.916 1803 0.904 1804 0.859 1805 0.77 1806 0.803 1807 0.784 1808 0.646 1809 0.855 1810 0.823 1811 0.9 1812 0.785 1813 0.596 1814 0.789 1815 0.813 1816 0.82 1817 0.599 1818 0.638 1819 0.169 1820 0.671 1821 0.758 1822 0.119 1823 0.242 1824 0.511 1825 0.388 1826 0.504 1827 0.517 1828 0.635 1829 0.81 1830 0.504 1831 0.793 1832 0.586 1833 0.45 1834 0.961 1835 0.689 1836 1.077 1837 0.715 1838 0.79 1839 0.46 1840 0.775 1841 0.905 1842 0.658 1843 0.876 1844 0.67 1845 0.862 1846 0.937 1847 1.025 1848 0.9 1849 0.823 1850 0.776 1851 0.755 1852 0.826 1853 0.9 1854 0.868 1855 0.396 1856 0.492 1857 0.361 1858 0.636 1859 0.275 1860 0.933 1861 1.162 1862 1.077 1863 0.429 1864 0.916 1865 1.133 1866 1.561 1867 1.823 1868 1.81 1869 1.861 1870 1.834 1871 1.642 1872 1.468 1873 1.128 1874 1.297 1875 1.696 1876 1.867 1877 1.553 1878 1.723 1879 1.565 1880 1.898 1881 1.565 1882 1.129 1883 1.691 1884 1.27 1885 1.235 1886 1.065 1887 1.147 1888 0.824 1889 0.828 1890 1.398 1891 1.409 1892 1.839 1893 1.728 1894 1.222 1895 1.131 1896 1.13 1897 1.221 1898 1.17 1899 0.992 1900 0.118 1901 1.207 1902 1.321 1903 1.161 1904 0.943 1905 0.657 1906 1.229 1907 1.253 1908 1.442 1909 1.109 1910 1.19 1911 0.975 1912 1.207 1913 1.316 1914 1.111 1915 1.072 1916 0.975 1917 0.959 1918 0.838 1919 0.844 1920 0.636 1921 0.763 1922 0.843 1923 0.649 1924 0.933 1925 0.567 1926 0.331 1927 0.286 1928 0.608 1929 0.734 1930 0.754 1931 0.759 1932 0.811 1933 1.131 1934 0.951 1935 0.555 1936 0.669 1937 0.415 1938 0.662 1939 0.871 1940 0.72 1941 1.063 1942 0.975 1943 1.014 1944 1.025 1945 1.087 1946 1.094 1947 0.831 1948 1.375 1949 1.471 1950 1.513 1951 1.098 1952 1.299 1953 1.127 1954 1.272 1955 1.55 1956 0.877 1957 0.593 1958 0.454 1959 0.84 1960 0.862 1961 0.965 1962 0.723 1963 0.581 1964 0.932 1965 0.863 1966 0.706 1967 0.817 1968 0.652 1969 0.923 1970 0.823 1971 0.58 1972 0.59 1973 0.803 1974 0.949 1975 1.06 1976 0.756 1977 1.066 1978 1.098 1979 1.072 1980 0.702 1981 0.995 1982 0.923 1983 0.787 1984 0.687 1985 0.637 1986 1.094 1987 0.776 1988 0.894 1989 0.649 1990 1.211