# northamerica_usa_ca530 - Cirque Peak - 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_ca530 - Cirque Peak - 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: Cirque Peak # Location: # Country: United States # Northernmost_Latitude: 36.45 # Southernmost_Latitude: 36.45 # Easternmost_Longitude: -118.22 # Westernmost_Longitude: -118.22 # Elevation: 3505 m #-------------------- # Data_Collection # Collection_Name: northamerica_usa_ca530B # Earliest_Year: 1600 # Most_Recent_Year: 1987 # Time_Unit: y_ad # Core_Length: # Notes: {"sensitivity":"temperature"}{"T1":"5.29266945384"}{"T2":"18.5734269678"}{"M1":"0.0224487013298"}{"M2":"0.30476592338"} #-------------------- # Species # Species_Name: foxtail pine # Species_Code: PIBA #-------------------- # 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 1.031 1601 0.838 1602 0.503 1603 0.981 1604 0.784 1605 0.583 1606 0.348 1607 0.519 1608 0.662 1609 0.547 1610 0.472 1611 0.549 1612 0.56 1613 0.48 1614 0.631 1615 0.376 1616 0.792 1617 0.595 1618 0.318 1619 0.623 1620 0.432 1621 0.543 1622 0.537 1623 0.631 1624 0.481 1625 0.703 1626 0.586 1627 0.791 1628 0.775 1629 0.888 1630 0.834 1631 0.61 1632 0.592 1633 0.581 1634 0.758 1635 0.841 1636 0.75 1637 1.054 1638 0.879 1639 0.592 1640 0.819 1641 0.371 1642 0.438 1643 0.574 1644 0.534 1645 0.425 1646 0.562 1647 0.25 1648 0.57 1649 0.537 1650 0.64 1651 0.81 1652 0.751 1653 0.63 1654 0.753 1655 0.672 1656 0.839 1657 0.904 1658 0.931 1659 0.911 1660 0.912 1661 1.062 1662 0.828 1663 0.51 1664 0.782 1665 0.897 1666 0.652 1667 0.607 1668 0.712 1669 0.657 1670 0.755 1671 0.932 1672 0.771 1673 0.838 1674 0.672 1675 0.489 1676 0.672 1677 0.377 1678 0.744 1679 0.737 1680 0.718 1681 0.256 1682 0.896 1683 0.842 1684 0.966 1685 0.835 1686 0.681 1687 0.795 1688 0.694 1689 0.897 1690 0.723 1691 1.058 1692 1.01 1693 1.067 1694 1.11 1695 1.024 1696 0.663 1697 0.96 1698 1.071 1699 0.671 1700 0.601 1701 0.595 1702 0.624 1703 0.304 1704 0.386 1705 0.158 1706 0.551 1707 0.495 1708 0.542 1709 0.597 1710 0.421 1711 0.496 1712 0.593 1713 0.685 1714 0.413 1715 0.625 1716 0.63 1717 0.66 1718 0.843 1719 0.474 1720 0.64 1721 0.775 1722 0.846 1723 0.765 1724 1.009 1725 0.908 1726 0.616 1727 0.862 1728 0.886 1729 1.068 1730 1.087 1731 0.763 1732 1.005 1733 0.64 1734 1.082 1735 0.803 1736 1.049 1737 1.168 1738 0.986 1739 0.644 1740 0.738 1741 0.985 1742 0.946 1743 0.893 1744 0.863 1745 0.908 1746 0.862 1747 0.964 1748 1.019 1749 0.896 1750 1.003 1751 1.155 1752 0.967 1753 0.632 1754 0.748 1755 0.64 1756 0.7 1757 1.146 1758 0.75 1759 0.694 1760 0.809 1761 0.779 1762 0.783 1763 0.896 1764 0.484 1765 0.856 1766 0.748 1767 0.841 1768 0.669 1769 0.912 1770 0.7 1771 0.864 1772 1.102 1773 1.021 1774 0.83 1775 0.881 1776 0.902 1777 0.859 1778 1.261 1779 1.04 1780 1.072 1781 1.397 1782 1.05 1783 1.288 1784 1.21 1785 1.5 1786 1.605 1787 1.127 1788 1.171 1789 1.152 1790 1.067 1791 1.171 1792 1.225 1793 1.065 1794 1.124 1795 1.543 1796 1.524 1797 1.226 1798 1.376 1799 1.066 1800 1.005 1801 1.395 1802 0.987 1803 1.264 1804 1.054 1805 1.241 1806 1.124 1807 1.309 1808 1.483 1809 1.284 1810 0.55 1811 0.607 1812 0.666 1813 0.878 1814 0.691 1815 0.682 1816 0.502 1817 0.768 1818 0.677 1819 0.578 1820 0.657 1821 0.55 1822 0.6 1823 0.68 1824 0.671 1825 0.607 1826 0.817 1827 0.875 1828 0.499 1829 0.694 1830 0.736 1831 0.833 1832 0.77 1833 0.753 1834 0.819 1835 0.937 1836 0.686 1837 0.505 1838 0.553 1839 0.714 1840 0.55 1841 0.691 1842 0.662 1843 0.722 1844 0.669 1845 0.739 1846 0.987 1847 0.809 1848 1.167 1849 0.636 1850 0.639 1851 0.713 1852 0.786 1853 0.706 1854 0.973 1855 0.858 1856 0.952 1857 0.61 1858 0.908 1859 0.958 1860 1.038 1861 0.829 1862 0.958 1863 0.485 1864 0.911 1865 0.5 1866 1.034 1867 0.866 1868 0.928 1869 0.803 1870 1.056 1871 1.231 1872 1.125 1873 0.967 1874 0.936 1875 0.735 1876 1.272 1877 1.063 1878 1.087 1879 1.33 1880 1.137 1881 1.042 1882 1.101 1883 0.977 1884 1.088 1885 0.755 1886 1.403 1887 1.035 1888 1.113 1889 1.207 1890 1.094 1891 1.185 1892 1.124 1893 1.115 1894 0.949 1895 1.225 1896 1.246 1897 1.17 1898 1.161 1899 1.286 1900 1.405 1901 1.334 1902 1.372 1903 1.291 1904 1.352 1905 1.311 1906 1.332 1907 1.391 1908 1.23 1909 1.258 1910 1.167 1911 1.589 1912 0.882 1913 0.507 1914 0.78 1915 1.016 1916 0.805 1917 0.964 1918 0.92 1919 0.89 1920 1.172 1921 0.945 1922 1.036 1923 0.948 1924 0.848 1925 1.062 1926 0.941 1927 1.233 1928 1.337 1929 1.151 1930 1.338 1931 1.333 1932 1.303 1933 1.445 1934 1.657 1935 1.464 1936 1.339 1937 1.449 1938 1.328 1939 1.094 1940 1.481 1941 1.101 1942 1.314 1943 1.489 1944 1.128 1945 1.078 1946 1.304 1947 1.199 1948 1.241 1949 0.933 1950 1.207 1951 1.329 1952 1.007 1953 1.255 1954 1.199 1955 1.476 1956 1.053 1957 1.211 1958 1.141 1959 1.592 1960 1.185 1961 1.427 1962 1.399 1963 1.569 1964 1.526 1965 1.149 1966 0.919 1967 1.402 1968 1.242 1969 1.495 1970 1.324 1971 1.383 1972 0.997 1973 1.159 1974 1.371 1975 1.525 1976 1.255 1977 1.559 1978 1.366 1979 1.118 1980 1.479 1981 1.352 1982 1.274 1983 0.851 1984 0.952 1985 1.06 1986 1.05 1987 0.808