# asia_mong012 - Undur Ulaan - 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_mong012 - Undur Ulaan - 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: Undur Ulaan # Location: # Country: Mongolia # Northernmost_Latitude: 48.98 # Southernmost_Latitude: 48.98 # Easternmost_Longitude: 103.23 # Westernmost_Longitude: 103.23 # Elevation: 1400 m #-------------------- # Data_Collection # Collection_Name: asia_mong012B # Earliest_Year: 1600 # Most_Recent_Year: 2002 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"moisture"}{"T1":"4.9965524072"}{"T2":"14.817389893"}{"M1":"0.0223305929188"}{"M2":"0.53711696151"} #-------------------- # Species # Species_Name: Siberian larch # Species_Code: LASI #-------------------- # 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 1600 1.559 1601 1.822 1602 1.429 1603 1.028 1604 0.167 1605 0.564 1606 1.157 1607 1.079 1608 1.088 1609 0.545 1610 1.242 1611 0.891 1612 1.529 1613 1.034 1614 1.513 1615 1.433 1616 1.792 1617 0.974 1618 1.789 1619 1.212 1620 2.064 1621 0.966 1622 0.533 1623 1.465 1624 1.066 1625 1.481 1626 1.037 1627 0.748 1628 0.626 1629 0.628 1630 0.319 1631 0.262 1632 0.786 1633 1.067 1634 0.784 1635 0.185 1636 0.672 1637 1.026 1638 0.607 1639 1.191 1640 0.685 1641 0.394 1642 0.11 1643 0.652 1644 0.479 1645 0.844 1646 1.154 1647 1.782 1648 0.306 1649 0.102 1650 1.125 1651 0.878 1652 0.949 1653 1.504 1654 0.685 1655 0.602 1656 1.089 1657 0.902 1658 0.775 1659 1.001 1660 0.398 1661 0.97 1662 0.754 1663 0.889 1664 0.32 1665 0.206 1666 0.417 1667 1.032 1668 0.564 1669 1.006 1670 1.141 1671 1.235 1672 1.676 1673 1.592 1674 1.323 1675 1.756 1676 1.391 1677 1.416 1678 0.544 1679 1.113 1680 0.968 1681 0.54 1682 -0.009 1683 0.277 1684 0.356 1685 0.569 1686 0.481 1687 0.446 1688 0.964 1689 1.117 1690 1.468 1691 1.262 1692 1.807 1693 1.059 1694 -0.013 1695 0.71 1696 0.538 1697 0.576 1698 0.64 1699 0.662 1700 0.498 1701 0.581 1702 0.764 1703 0.931 1704 1.201 1705 1.313 1706 1.776 1707 1.205 1708 0.806 1709 0.738 1710 0.792 1711 0.901 1712 1.027 1713 0.474 1714 0.611 1715 0.709 1716 1.038 1717 0.741 1718 0.734 1719 1.41 1720 1.835 1721 1.337 1722 0.566 1723 0.228 1724 0.642 1725 0.917 1726 0.855 1727 1.593 1728 1.775 1729 1.529 1730 1.055 1731 0.291 1732 0.498 1733 0.761 1734 0.487 1735 0.502 1736 0.194 1737 0.15 1738 0.071 1739 0.441 1740 0.708 1741 0.684 1742 1.129 1743 1.056 1744 0.469 1745 1.54 1746 0.682 1747 1.014 1748 0.652 1749 1.039 1750 0.98 1751 1.41 1752 1.483 1753 1.066 1754 1.36 1755 1.719 1756 0.944 1757 1.165 1758 0.838 1759 1.149 1760 0.658 1761 0.745 1762 1.53 1763 1.47 1764 1.471 1765 2.096 1766 0.879 1767 0.942 1768 0.641 1769 1.419 1770 1.606 1771 1.341 1772 1.538 1773 1.219 1774 1.165 1775 0.868 1776 0.111 1777 0.234 1778 0.895 1779 0.952 1780 0.599 1781 0.438 1782 0.748 1783 0.296 1784 0.533 1785 0.914 1786 0.973 1787 0.731 1788 1.736 1789 1.89 1790 1.291 1791 0.964 1792 0.934 1793 0.74 1794 0.532 1795 1.157 1796 1.068 1797 1.561 1798 2.019 1799 1.828 1800 1.154 1801 1.581 1802 1.31 1803 1.381 1804 0.699 1805 1.254 1806 1.283 1807 1.315 1808 1.441 1809 0.391 1810 0.313 1811 0.711 1812 0.936 1813 1.147 1814 0.843 1815 0.712 1816 0.942 1817 0.631 1818 0.424 1819 0.292 1820 0.716 1821 0.475 1822 0.372 1823 0.705 1824 0.142 1825 0.59 1826 0.753 1827 0.763 1828 1.067 1829 1.125 1830 0.67 1831 1.124 1832 0.831 1833 0.995 1834 0.94 1835 0.491 1836 0.117 1837 1.317 1838 1.073 1839 0.709 1840 0.677 1841 0.597 1842 0.73 1843 0.779 1844 0.502 1845 0.101 1846 0.93 1847 0.758 1848 0.429 1849 0.278 1850 0.583 1851 1.0 1852 0.754 1853 0.725 1854 0.364 1855 0.53 1856 0.809 1857 0.799 1858 0.436 1859 0.926 1860 1.005 1861 0.579 1862 0.905 1863 0.674 1864 0.911 1865 0.887 1866 0.744 1867 0.899 1868 1.084 1869 1.569 1870 1.267 1871 1.577 1872 1.096 1873 1.28 1874 0.769 1875 0.544 1876 0.782 1877 0.941 1878 1.224 1879 1.47 1880 0.851 1881 1.191 1882 1.094 1883 1.174 1884 0.495 1885 1.395 1886 0.715 1887 1.017 1888 0.915 1889 0.627 1890 1.306 1891 1.629 1892 0.925 1893 0.229 1894 0.857 1895 1.112 1896 1.275 1897 1.462 1898 0.789 1899 0.824 1900 0.602 1901 0.152 1902 0.673 1903 0.754 1904 0.465 1905 0.528 1906 0.835 1907 0.826 1908 1.028 1909 1.033 1910 0.464 1911 1.128 1912 1.234 1913 1.373 1914 0.758 1915 0.833 1916 1.409 1917 1.157 1918 1.083 1919 0.618 1920 1.139 1921 1.564 1922 1.345 1923 0.86 1924 0.449 1925 0.406 1926 0.246 1927 0.828 1928 0.676 1929 0.436 1930 0.152 1931 0.684 1932 1.088 1933 1.117 1934 1.165 1935 0.981 1936 0.415 1937 1.336 1938 1.371 1939 1.378 1940 1.555 1941 1.873 1942 1.417 1943 1.454 1944 1.243 1945 0.774 1946 1.088 1947 1.194 1948 1.31 1949 1.479 1950 1.457 1951 0.885 1952 1.158 1953 1.467 1954 0.604 1955 1.521 1956 1.18 1957 0.588 1958 1.011 1959 0.932 1960 1.236 1961 1.358 1962 1.635 1963 1.614 1964 1.709 1965 0.996 1966 1.454 1967 2.187 1968 1.197 1969 1.324 1970 1.353 1971 1.627 1972 1.053 1973 1.706 1974 1.477 1975 1.368 1976 1.519 1977 1.403 1978 0.737 1979 0.853 1980 0.919 1981 0.353 1982 0.938 1983 1.53 1984 0.558 1985 1.585 1986 1.6 1987 0.731 1988 1.319 1989 1.225 1990 1.439 1991 1.086 1992 1.342 1993 1.624 1994 1.124 1995 1.114 1996 0.739 1997 0.742 1998 0.487 1999 0.835 2000 0.326 2001 0.561 2002 0.445