# asia_mong008 - Horin Bugatyin Davaa - 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_mong008 - Horin Bugatyin Davaa - 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: Horin Bugatyin Davaa # Location: # Country: Mongolia # Northernmost_Latitude: 49.37 # Southernmost_Latitude: 49.37 # Easternmost_Longitude: 94.88 # Westernmost_Longitude: 94.88 # Elevation: 2229 m #-------------------- # Data_Collection # Collection_Name: asia_mong008B # Earliest_Year: 1738 # Most_Recent_Year: 1998 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"moisture"}{"T1":"5.96435803799"}{"T2":"17.2408176497"}{"M1":"0.0221651121296"}{"M2":"0.429423683573"} #-------------------- # Species # Species_Name: Siberian stone pine # Species_Code: PISI #-------------------- # 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 1738 1.17 1739 0.936 1740 0.946 1741 0.829 1742 0.878 1743 0.854 1744 0.977 1745 0.981 1746 0.928 1747 0.822 1748 0.816 1749 0.945 1750 0.733 1751 1.2 1752 1.294 1753 1.264 1754 1.036 1755 1.183 1756 1.172 1757 1.207 1758 1.102 1759 1.296 1760 1.133 1761 1.245 1762 1.138 1763 1.512 1764 1.067 1765 1.352 1766 1.052 1767 1.096 1768 0.974 1769 1.285 1770 1.406 1771 1.194 1772 1.07 1773 1.418 1774 1.128 1775 1.254 1776 1.018 1777 1.112 1778 1.125 1779 1.047 1780 1.113 1781 1.191 1782 1.207 1783 0.971 1784 1.104 1785 0.912 1786 1.056 1787 0.973 1788 0.749 1789 1.109 1790 0.796 1791 0.71 1792 0.704 1793 0.656 1794 0.929 1795 0.956 1796 0.924 1797 0.913 1798 1.005 1799 1.022 1800 1.023 1801 1.187 1802 0.915 1803 0.847 1804 0.891 1805 0.963 1806 1.027 1807 0.966 1808 1.268 1809 1.266 1810 1.21 1811 1.126 1812 0.79 1813 0.688 1814 0.676 1815 0.77 1816 0.822 1817 0.894 1818 0.915 1819 0.931 1820 0.856 1821 0.839 1822 0.766 1823 0.998 1824 0.982 1825 0.955 1826 0.98 1827 1.066 1828 1.178 1829 1.147 1830 1.291 1831 1.209 1832 1.205 1833 0.858 1834 0.81 1835 0.816 1836 0.783 1837 0.85 1838 0.803 1839 0.838 1840 0.726 1841 0.828 1842 0.599 1843 0.582 1844 0.684 1845 0.645 1846 0.839 1847 1.04 1848 1.175 1849 0.958 1850 0.567 1851 0.653 1852 0.458 1853 0.59 1854 0.451 1855 0.536 1856 0.435 1857 0.454 1858 0.564 1859 0.559 1860 0.642 1861 0.707 1862 0.921 1863 0.938 1864 1.016 1865 0.911 1866 0.759 1867 0.655 1868 0.757 1869 0.711 1870 0.628 1871 0.549 1872 0.454 1873 0.541 1874 0.778 1875 0.888 1876 0.828 1877 0.885 1878 1.125 1879 1.131 1880 0.958 1881 1.077 1882 1.174 1883 1.292 1884 0.955 1885 1.043 1886 0.991 1887 0.971 1888 0.864 1889 0.944 1890 0.786 1891 1.022 1892 1.054 1893 0.917 1894 1.065 1895 0.94 1896 1.107 1897 1.028 1898 1.137 1899 1.011 1900 1.104 1901 1.074 1902 1.279 1903 1.158 1904 1.056 1905 1.179 1906 1.021 1907 1.169 1908 1.203 1909 1.089 1910 1.034 1911 0.882 1912 1.202 1913 0.848 1914 0.762 1915 1.059 1916 0.961 1917 0.942 1918 0.947 1919 1.005 1920 0.964 1921 0.937 1922 1.071 1923 0.972 1924 1.306 1925 1.115 1926 1.053 1927 1.073 1928 1.038 1929 1.191 1930 1.289 1931 1.02 1932 1.212 1933 0.952 1934 0.946 1935 1.123 1936 1.073 1937 0.905 1938 0.834 1939 0.858 1940 1.023 1941 1.049 1942 1.171 1943 1.083 1944 1.294 1945 1.008 1946 1.313 1947 0.976 1948 1.033 1949 1.108 1950 1.115 1951 1.148 1952 0.909 1953 1.101 1954 1.065 1955 1.098 1956 1.219 1957 1.146 1958 0.918 1959 1.051 1960 1.057 1961 0.828 1962 0.963 1963 1.133 1964 1.414 1965 1.358 1966 1.15 1967 1.145 1968 1.423 1969 0.991 1970 1.153 1971 1.077 1972 1.009 1973 0.987 1974 1.101 1975 1.11 1976 1.086 1977 1.151 1978 0.995 1979 1.124 1980 1.14 1981 0.859 1982 0.908 1983 0.906 1984 1.169 1985 0.959 1986 1.088 1987 1.185 1988 0.997 1989 1.003 1990 1.141 1991 0.968 1992 1.089 1993 0.843 1994 1.0 1995 0.966 1996 0.725 1997 0.808 1998 0.981