# europe_swit184 - Muotathal SZ Bödmerenwald - 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: europe_swit184 - Muotathal SZ Bödmerenwald - 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: Muotathal SZ Bödmerenwald # Location: # Country: Switzerland # Northernmost_Latitude: 46.98 # Southernmost_Latitude: 46.98 # Easternmost_Longitude: 8.85 # Westernmost_Longitude: 8.85 # Elevation: 1550 m #-------------------- # Data_Collection # Collection_Name: europe_swit184B # Earliest_Year: 1813 # Most_Recent_Year: 1999 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"temperature"}{"T1":"6.36954047355"}{"T2":"17.0745311119"}{"M1":"0.0226703464371"}{"M2":"0.395351347317"} #-------------------- # Species # Species_Name: Norway spruce # Species_Code: PCAB #-------------------- # 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 1813 1.049 1814 0.807 1815 0.582 1816 0.03 1817 0.316 1818 0.725 1819 0.734 1820 0.863 1821 0.554 1822 1.045 1823 1.069 1824 1.271 1825 0.961 1826 0.993 1827 0.697 1828 0.668 1829 1.022 1830 0.936 1831 0.877 1832 0.608 1833 0.827 1834 0.991 1835 0.892 1836 0.802 1837 1.096 1838 0.924 1839 0.832 1840 0.722 1841 0.914 1842 1.397 1843 1.053 1844 1.118 1845 0.92 1846 0.826 1847 0.792 1848 0.871 1849 0.65 1850 0.765 1851 0.84 1852 0.646 1853 0.774 1854 0.675 1855 0.717 1856 0.648 1857 0.94 1858 0.947 1859 1.02 1860 0.793 1861 0.85 1862 0.732 1863 1.037 1864 0.96 1865 0.912 1866 0.903 1867 1.075 1868 0.743 1869 0.975 1870 0.925 1871 0.787 1872 0.778 1873 1.34 1874 1.438 1875 1.456 1876 1.328 1877 1.3 1878 1.308 1879 0.989 1880 0.956 1881 1.523 1882 1.249 1883 1.312 1884 1.172 1885 1.647 1886 1.124 1887 1.522 1888 1.301 1889 1.395 1890 0.866 1891 0.475 1892 0.777 1893 1.161 1894 1.003 1895 1.457 1896 1.375 1897 1.553 1898 1.236 1899 1.558 1900 1.392 1901 1.718 1902 1.242 1903 1.174 1904 1.705 1905 1.539 1906 1.198 1907 1.302 1908 1.652 1909 1.035 1910 1.283 1911 1.42 1912 1.237 1913 1.017 1914 1.123 1915 1.224 1916 1.124 1917 1.299 1918 0.819 1919 1.065 1920 1.113 1921 1.008 1922 1.106 1923 1.151 1924 1.053 1925 1.041 1926 0.96 1927 1.101 1928 1.126 1929 0.818 1930 0.847 1931 1.205 1932 0.879 1933 0.49 1934 0.493 1935 0.862 1936 0.648 1937 0.902 1938 0.758 1939 0.772 1940 0.825 1941 0.741 1942 0.836 1943 0.839 1944 1.18 1945 1.351 1946 1.057 1947 1.204 1948 0.482 1949 0.908 1950 0.87 1951 1.064 1952 1.217 1953 0.928 1954 0.62 1955 0.808 1956 0.487 1957 0.508 1958 0.682 1959 0.702 1960 0.707 1961 0.645 1962 0.684 1963 0.982 1964 0.919 1965 0.773 1966 0.87 1967 1.086 1968 1.118 1969 1.19 1970 1.32 1971 0.95 1972 1.043 1973 1.376 1974 0.771 1975 0.944 1976 1.1 1977 1.073 1978 0.868 1979 0.951 1980 0.802 1981 0.952 1982 1.322 1983 1.446 1984 0.999 1985 1.023 1986 0.969 1987 0.911 1988 1.142 1989 1.008 1990 0.862 1991 0.72 1992 1.041 1993 0.945 1994 0.896 1995 0.774 1996 0.55 1997 0.519 1998 0.475 1999 0.718