# northamerica_usa_ar027 - Lake Winona - 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: northamerica_usa_ar027 - Lake Winona - 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: Lake Winona # Location: # Country: United States # Northernmost_Latitude: 34.8 # Southernmost_Latitude: 34.8 # Easternmost_Longitude: -92.93 # Westernmost_Longitude: -92.93 # Elevation: 300 m #-------------------- # Data_Collection # Collection_Name: northamerica_usa_ar027B # Earliest_Year: 1747 # Most_Recent_Year: 1980 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"temperature"}{"T1":"5.13490742203"}{"T2":"18.7884343354"}{"M1":"0.0221792024883"}{"M2":"0.498184716194"} #-------------------- # Species # Species_Name: shortleaf pine # Species_Code: PIEC #-------------------- # 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 1747 1.118 1748 1.2 1749 1.248 1750 0.752 1751 0.647 1752 0.53 1753 0.224 1754 0.401 1755 0.798 1756 0.56 1757 0.863 1758 0.832 1759 0.943 1760 0.774 1761 1.142 1762 0.879 1763 0.792 1764 0.964 1765 0.675 1766 0.61 1767 0.49 1768 0.512 1769 0.476 1770 0.525 1771 0.576 1772 0.287 1773 0.451 1774 0.779 1775 0.458 1776 0.832 1777 1.002 1778 1.177 1779 1.078 1780 0.994 1781 1.64 1782 0.755 1783 1.15 1784 0.8 1785 1.299 1786 1.021 1787 1.345 1788 0.706 1789 0.494 1790 0.826 1791 0.783 1792 0.451 1793 0.739 1794 0.99 1795 1.387 1796 1.003 1797 1.229 1798 1.203 1799 0.734 1800 0.792 1801 0.837 1802 1.2 1803 0.918 1804 1.48 1805 1.145 1806 1.099 1807 1.038 1808 1.619 1809 1.103 1810 0.915 1811 0.97 1812 0.822 1813 1.119 1814 1.047 1815 1.272 1816 1.436 1817 1.752 1818 1.349 1819 1.568 1820 1.313 1821 1.347 1822 1.108 1823 1.018 1824 0.524 1825 0.402 1826 0.305 1827 0.625 1828 0.667 1829 0.606 1830 0.655 1831 0.277 1832 0.389 1833 0.529 1834 0.547 1835 0.753 1836 0.616 1837 0.257 1838 0.04 1839 0.287 1840 0.393 1841 0.623 1842 1.141 1843 0.686 1844 1.384 1845 1.062 1846 0.815 1847 1.02 1848 1.077 1849 1.765 1850 1.024 1851 0.826 1852 1.069 1853 0.982 1854 1.108 1855 1.123 1856 0.836 1857 1.005 1858 1.202 1859 1.864 1860 1.063 1861 1.501 1862 0.993 1863 1.28 1864 1.39 1865 1.364 1866 1.37 1867 1.106 1868 0.694 1869 0.539 1870 1.141 1871 1.001 1872 1.326 1873 1.149 1874 0.789 1875 0.633 1876 1.014 1877 1.089 1878 1.332 1879 1.351 1880 1.319 1881 0.773 1882 1.339 1883 0.811 1884 1.182 1885 0.781 1886 0.832 1887 0.821 1888 1.138 1889 1.266 1890 1.1 1891 1.327 1892 1.551 1893 1.731 1894 1.226 1895 1.084 1896 0.812 1897 1.435 1898 1.555 1899 0.977 1900 1.298 1901 1.176 1902 1.505 1903 1.308 1904 1.701 1905 1.452 1906 1.431 1907 1.183 1908 1.271 1909 1.195 1910 1.752 1911 1.475 1912 0.943 1913 1.137 1914 1.062 1915 1.218 1916 0.929 1917 0.964 1918 0.815 1919 1.003 1920 0.905 1921 0.779 1922 0.792 1923 1.345 1924 1.261 1925 0.574 1926 0.548 1927 0.938 1928 1.003 1929 0.889 1930 0.805 1931 0.815 1932 0.788 1933 0.842 1934 0.656 1935 0.85 1936 0.849 1937 0.784 1938 0.463 1939 0.709 1940 1.125 1941 0.913 1942 0.827 1943 0.643 1944 1.022 1945 0.887 1946 0.909 1947 0.845 1948 1.093 1949 0.875 1950 0.99 1951 0.743 1952 0.628 1953 0.544 1954 0.477 1955 0.678 1956 0.666 1957 1.1 1958 0.921 1959 1.053 1960 0.819 1961 0.949 1962 1.0 1963 0.832 1964 0.735 1965 0.896 1966 0.887 1967 0.965 1968 1.059 1969 0.875 1970 0.977 1971 0.571 1972 0.774 1973 1.212 1974 0.721 1975 0.93 1976 0.919 1977 0.748 1978 0.519 1979 0.575 1980 0.3