# australia_newz092 - Konini Forks - 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: australia_newz092 - Konini Forks - 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: Konini Forks # Location: # Country: New Zealand # Northernmost_Latitude: -37.07 # Southernmost_Latitude: -37.07 # Easternmost_Longitude: 175.13 # Westernmost_Longitude: 175.13 # Elevation: 400 m #-------------------- # Data_Collection # Collection_Name: australia_newz092B # Earliest_Year: 1770 # Most_Recent_Year: 1976 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"temperature"}{"T1":"4.06624420612"}{"T2":"14.9493794778"}{"M1":"0.0226983515451"}{"M2":"0.551140044471"} #-------------------- # Species # Species_Name: kauri pine # Species_Code: AGAU #-------------------- # 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 1770 0.722 1771 0.655 1772 0.449 1773 0.657 1774 0.686 1775 0.645 1776 0.708 1777 0.581 1778 0.856 1779 0.665 1780 0.696 1781 1.016 1782 0.76 1783 0.869 1784 0.803 1785 0.724 1786 1.0 1787 0.587 1788 0.942 1789 0.709 1790 0.917 1791 0.83 1792 0.764 1793 0.812 1794 1.115 1795 0.756 1796 1.036 1797 1.169 1798 0.902 1799 1.024 1800 0.904 1801 0.71 1802 0.792 1803 0.811 1804 1.054 1805 0.612 1806 0.981 1807 0.907 1808 0.895 1809 1.032 1810 0.813 1811 0.915 1812 0.966 1813 0.872 1814 0.94 1815 0.907 1816 0.797 1817 0.763 1818 0.805 1819 0.848 1820 0.876 1821 0.869 1822 0.682 1823 0.862 1824 0.797 1825 0.724 1826 0.84 1827 1.102 1828 0.745 1829 0.949 1830 0.89 1831 1.148 1832 0.882 1833 1.229 1834 0.909 1835 1.163 1836 0.92 1837 0.904 1838 0.987 1839 0.507 1840 1.118 1841 1.034 1842 0.95 1843 0.973 1844 0.818 1845 0.953 1846 0.504 1847 1.019 1848 0.789 1849 0.674 1850 0.885 1851 0.757 1852 0.985 1853 1.075 1854 0.9 1855 1.095 1856 0.869 1857 1.034 1858 0.716 1859 1.175 1860 0.617 1861 1.207 1862 1.287 1863 0.954 1864 1.271 1865 1.231 1866 1.119 1867 1.12 1868 1.152 1869 0.96 1870 1.186 1871 1.146 1872 1.262 1873 1.089 1874 1.312 1875 0.798 1876 1.365 1877 1.017 1878 1.192 1879 1.082 1880 1.15 1881 1.027 1882 0.998 1883 1.032 1884 1.432 1885 1.405 1886 1.003 1887 0.992 1888 0.993 1889 0.849 1890 0.772 1891 1.464 1892 1.155 1893 1.876 1894 1.385 1895 1.428 1896 1.574 1897 1.279 1898 1.555 1899 0.894 1900 0.992 1901 0.878 1902 1.175 1903 0.651 1904 1.41 1905 1.291 1906 0.917 1907 0.948 1908 0.734 1909 0.978 1910 1.013 1911 1.276 1912 0.792 1913 1.601 1914 1.25 1915 0.899 1916 0.853 1917 1.169 1918 1.186 1919 1.551 1920 1.071 1921 1.237 1922 1.172 1923 0.675 1924 1.267 1925 1.018 1926 1.1 1927 1.257 1928 0.898 1929 1.148 1930 0.953 1931 1.385 1932 0.946 1933 1.209 1934 0.678 1935 0.776 1936 1.141 1937 0.732 1938 1.175 1939 0.64 1940 1.336 1941 0.947 1942 1.103 1943 0.899 1944 1.065 1945 0.847 1946 0.55 1947 0.795 1948 0.597 1949 0.844 1950 0.691 1951 1.186 1952 0.854 1953 0.666 1954 0.75 1955 0.703 1956 0.573 1957 0.722 1958 0.886 1959 0.814 1960 0.458 1961 0.759 1962 0.591 1963 1.381 1964 0.85 1965 0.971 1966 0.86 1967 0.729 1968 0.625 1969 0.534 1970 0.547 1971 0.741 1972 0.637 1973 0.364 1974 0.722 1975 0.527 1976 0.811