# northamerica_usa_co548 - Turkey Creek Bluff - 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_co548 - Turkey Creek Bluff - 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: Turkey Creek Bluff # Location: # Country: United States # Northernmost_Latitude: 38.6 # Southernmost_Latitude: 38.6 # Easternmost_Longitude: -104.87 # Westernmost_Longitude: -104.87 # Elevation: 1938 m #-------------------- # Data_Collection # Collection_Name: northamerica_usa_co548B # Earliest_Year: 1715 # Most_Recent_Year: 1987 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"moisture"}{"T1":"4.05462757876"}{"T2":"15.2498039502"}{"M1":"0.0234156981552"}{"M2":"0.502213268063"} #-------------------- # Species # Species_Name: ponderosa pine # Species_Code: PIPO #-------------------- # 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 1715 0.444 1716 0.519 1717 0.863 1718 0.911 1719 0.867 1720 1.349 1721 1.165 1722 0.982 1723 1.048 1724 1.016 1725 0.967 1726 1.22 1727 0.608 1728 1.095 1729 0.353 1730 0.277 1731 0.441 1732 0.692 1733 0.553 1734 0.847 1735 0.578 1736 0.469 1737 0.363 1738 0.382 1739 0.922 1740 0.823 1741 0.481 1742 0.779 1743 1.295 1744 0.764 1745 1.204 1746 1.478 1747 1.213 1748 0.585 1749 1.294 1750 1.278 1751 1.488 1752 0.57 1753 1.261 1754 1.458 1755 0.951 1756 0.084 1757 0.639 1758 1.007 1759 0.895 1760 1.126 1761 2.091 1762 1.197 1763 0.894 1764 0.63 1765 1.205 1766 1.272 1767 1.005 1768 1.382 1769 1.299 1770 0.793 1771 1.586 1772 1.137 1773 0.835 1774 1.13 1775 0.69 1776 0.892 1777 0.919 1778 0.876 1779 0.479 1780 0.682 1781 0.589 1782 0.948 1783 1.123 1784 0.788 1785 1.403 1786 0.9 1787 1.024 1788 1.217 1789 0.459 1790 1.461 1791 1.272 1792 1.447 1793 1.195 1794 1.24 1795 0.837 1796 0.842 1797 1.393 1798 0.873 1799 1.436 1800 1.721 1801 0.673 1802 1.318 1803 1.556 1804 1.176 1805 0.255 1806 0.331 1807 0.781 1808 0.682 1809 0.826 1810 0.954 1811 0.222 1812 0.899 1813 1.045 1814 1.204 1815 1.502 1816 1.42 1817 1.233 1818 0.434 1819 0.595 1820 0.107 1821 0.217 1822 0.487 1823 1.001 1824 0.467 1825 1.498 1826 1.159 1827 1.355 1828 2.152 1829 1.823 1830 1.59 1831 1.558 1832 1.193 1833 1.284 1834 0.761 1835 2.072 1836 2.031 1837 1.199 1838 1.776 1839 2.073 1840 1.197 1841 1.074 1842 0.128 1843 1.031 1844 1.427 1845 1.044 1846 0.913 1847 -0.02 1848 0.322 1849 0.469 1850 0.851 1851 0.185 1852 0.133 1853 0.689 1854 0.985 1855 0.457 1856 0.776 1857 1.549 1858 1.62 1859 1.014 1860 1.108 1861 0.126 1862 0.611 1863 0.186 1864 0.996 1865 0.985 1866 1.366 1867 0.942 1868 0.622 1869 1.427 1870 0.523 1871 0.516 1872 1.244 1873 0.732 1874 0.974 1875 1.212 1876 0.872 1877 0.778 1878 0.886 1879 0.782 1880 -0.02 1881 0.804 1882 1.393 1883 0.715 1884 1.248 1885 1.06 1886 0.9 1887 0.699 1888 0.555 1889 0.948 1890 1.081 1891 1.33 1892 0.858 1893 0.764 1894 1.202 1895 1.431 1896 0.776 1897 1.122 1898 1.163 1899 0.306 1900 1.117 1901 1.305 1902 0.745 1903 0.95 1904 0.985 1905 1.475 1906 0.703 1907 0.881 1908 0.092 1909 0.996 1910 0.907 1911 0.647 1912 1.269 1913 0.975 1914 1.682 1915 2.026 1916 1.209 1917 1.102 1918 0.903 1919 1.814 1920 1.141 1921 1.932 1922 0.793 1923 0.415 1924 1.38 1925 0.46 1926 1.119 1927 0.501 1928 1.377 1929 0.525 1930 1.143 1931 1.282 1932 0.455 1933 1.337 1934 0.758 1935 0.764 1936 0.547 1937 0.617 1938 0.966 1939 0.991 1940 0.559 1941 1.172 1942 1.712 1943 1.714 1944 1.497 1945 1.089 1946 0.338 1947 1.783 1948 2.108 1949 1.756 1950 0.364 1951 0.291 1952 1.109 1953 0.571 1954 -0.017 1955 0.291 1956 0.629 1957 0.977 1958 1.485 1959 1.366 1960 1.412 1961 1.454 1962 0.976 1963 -0.016 1964 0.948 1965 1.177 1966 0.308 1967 0.938 1968 0.487 1969 1.025 1970 1.826 1971 1.281 1972 0.656 1973 1.391 1974 0.19 1975 0.774 1976 0.39 1977 0.653 1978 0.357 1979 1.545 1980 1.116 1981 0.069 1982 1.424 1983 1.548 1984 0.62 1985 2.012 1986 0.467 1987 1.68