# Knight - Marshall Forest - PIEC - ITRDB GA018 #---------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #---------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/13811 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-tree-13811.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Tree Ring # # Dataset_DOI: # # Science_Keywords: drought #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ga018-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; ga018-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ga018.crn # Related_Online_Description: CRN File; Chronology - Tucson Decadal File # #-------------------- # Contribution_Date # Date: 2012-05-22 #-------------------- # File_Last_Modified_Date # Date: 2012-05-22 #-------------------- # Title # Study_Name: Knight - Marshall Forest - PIEC - ITRDB GA018 #-------------------- # Investigators # Investigators: Knight, T.A. #-------------------- # Description_Notes_and_Keywords # Description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08. #-------------------- # Publication # Authors: Pederson, N., A.R. Bell, T.A. Knight, C. Leland, N. Malcomb, K.J. Anchukaitis, K. Tackett, J. Scheff, A. Brice, B. Catron, W. Blozan, and J. Riddle # Journal_Name: Environmental Research Letters # Published_Title: A long-term perspective on a modern drought in the American Southeast # Published_Date_or_Year: 2012 # Volume: 7 # Pages: # Issue: 1 # Report_Number: 014034 # DOI: 10.1088/1748-9326/7/1/014034 # Full_Citation: None # Abstract: The depth of the 2006-9 drought in the humid, southeastern US left several metropolitan areas with only a 60-120 day water supply. To put the region's recent drought variability in a long-term perspective, a dense and diverse tree-ring network-including the first records throughout the Apalachicola-Chattahoochee-Flint river basin - is used to reconstruct drought from 1665 to 2010 CE. The network accounts for up to 58.1% of the annual variance in warm-season drought during the 20th century and captures wet eras during the middle to late 20th century. The reconstruction shows that the recent droughts are not unprecedented over the last 346 years. Indeed, droughts of extended duration occurred more frequently between 1696 and 1820. Our results indicate that the era in which local and state water supply decisions were developed and the period of instrumental data upon which it is based are amongst the wettest since at least 1665. Given continued growth and subsequent industrial, agricultural and metropolitan demand throughout the southeast, insights from paleohydroclimate records suggest that the threat of water-related conflict in the region has potential to grow more intense in the decades to come. #-------------------- # Funding_Agency # Funding_Agency_Name: # Grant: #-------------------- # Site_Information # Site_Name: Marshall Forest # Location: Georgia # Northernmost_Latitude: 32.2506 # Southernmost_Latitude: 32.2506 # Easternmost_Longitude: -85.1989 # Westernmost_Longitude: -85.1989 # Elevation_m: 262 #-------------------- # Data_Collection # Collection_Name: GA018 # First_Year: 1730 # Last_Year: 2001 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: ring width # Notes: #-------------------- # Species # Species_Name: Pinus echinata Mill. # Common_Name: shortleaf pine # Tree_Species_Code: PIEC #-------------------- # Variables # # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by '##' in columns one and two. # Variables format: shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## age_CE age,,,year Common Era,,tree ring,,,N, ## trsgi tree ring standardized growth index,,,,,tree ring,composited,standard chronology method,N, ## numsamp number of samples,,,count,,tree ring,,,N, #--------------------- # Data: # Missing_Values: NA age_CE trsgi numsamp 1730 0.893 1 1731 0.935 1 1732 0.935 1 1733 0.863 1 1734 1.137 1 1735 1.152 1 1736 1.004 1 1737 1.153 1 1738 0.965 1 1739 0.809 2 1740 1.142 3 1741 1.185 3 1742 1.087 3 1743 1.063 3 1744 0.55 3 1745 0.885 3 1746 1.033 3 1747 0.718 3 1748 0.75 3 1749 1.11 3 1750 1.039 3 1751 0.838 3 1752 0.772 3 1753 0.887 4 1754 0.978 4 1755 0.916 4 1756 0.912 4 1757 0.938 4 1758 0.737 4 1759 0.855 4 1760 0.859 4 1761 0.853 4 1762 0.821 4 1763 0.931 4 1764 0.887 4 1765 0.666 4 1766 0.609 4 1767 0.66 4 1768 0.653 4 1769 0.875 4 1770 1.044 4 1771 1.203 4 1772 0.98 4 1773 0.84 4 1774 0.664 4 1775 0.842 4 1776 1.186 4 1777 1.259 5 1778 1.246 5 1779 1.198 5 1780 0.767 6 1781 1.13 6 1782 1.232 7 1783 1.22 7 1784 0.914 7 1785 1.014 7 1786 1.179 7 1787 1.145 7 1788 1.131 7 1789 0.868 8 1790 0.931 9 1791 0.995 9 1792 1.019 10 1793 1.185 10 1794 1.018 11 1795 0.903 12 1796 0.961 12 1797 0.679 12 1798 0.869 12 1799 0.996 13 1800 0.972 14 1801 0.999 15 1802 0.863 15 1803 0.609 15 1804 1.173 16 1805 1.219 17 1806 1.094 19 1807 1.045 19 1808 1.146 20 1809 1.048 20 1810 0.832 20 1811 0.945 20 1812 1.159 20 1813 1.084 20 1814 1.282 21 1815 1.11 23 1816 1.148 24 1817 1.287 24 1818 1.17 24 1819 1.185 24 1820 1.092 25 1821 0.993 27 1822 0.874 27 1823 0.91 28 1824 0.745 28 1825 0.76 29 1826 0.688 29 1827 0.888 30 1828 1.036 30 1829 1.174 30 1830 1.041 30 1831 0.902 30 1832 0.862 31 1833 0.825 31 1834 0.966 32 1835 0.945 33 1836 1.071 33 1837 0.933 33 1838 0.687 33 1839 0.826 33 1840 0.958 33 1841 1.146 33 1842 1.144 33 1843 0.995 34 1844 1.061 34 1845 1.008 35 1846 1.11 35 1847 1.057 35 1848 0.951 35 1849 0.966 35 1850 1.009 36 1851 0.821 36 1852 1.135 36 1853 0.954 37 1854 0.789 37 1855 0.775 38 1856 0.763 39 1857 0.963 39 1858 1.016 39 1859 1.201 40 1860 1.082 41 1861 1.296 41 1862 1.045 42 1863 0.962 42 1864 1.19 43 1865 0.682 43 1866 0.742 44 1867 0.838 44 1868 0.998 44 1869 0.822 44 1870 1.193 44 1871 1.248 44 1872 1.058 44 1873 1.022 44 1874 1.18 44 1875 0.973 44 1876 1.029 44 1877 1.115 44 1878 1.112 45 1879 0.948 45 1880 1.062 45 1881 1.02 45 1882 1.232 45 1883 1.048 45 1884 0.97 45 1885 0.872 45 1886 1.06 45 1887 0.931 46 1888 1.271 46 1889 1.323 46 1890 0.898 46 1891 1.025 46 1892 1.101 46 1893 1.108 46 1894 1.041 46 1895 1.148 46 1896 0.749 46 1897 1.051 46 1898 0.933 46 1899 0.836 46 1900 0.998 46 1901 1.304 46 1902 0.818 46 1903 0.792 46 1904 0.781 46 1905 0.754 46 1906 0.977 46 1907 0.934 46 1908 1.05 46 1909 1.123 46 1910 0.815 46 1911 0.74 46 1912 1.011 46 1913 1.167 46 1914 1.09 46 1915 1.042 46 1916 0.95 46 1917 0.825 46 1918 0.864 46 1919 1.002 46 1920 1.054 46 1921 0.769 46 1922 0.878 46 1923 0.798 46 1924 0.837 46 1925 0.668 46 1926 1.179 46 1927 0.818 46 1928 1.02 46 1929 1.041 46 1930 1.15 46 1931 1.036 46 1932 1.151 46 1933 0.956 46 1934 0.89 46 1935 1.032 46 1936 0.721 46 1937 0.862 46 1938 0.926 46 1939 1.084 46 1940 1.137 46 1941 1.01 46 1942 1.057 46 1943 1.043 46 1944 0.861 46 1945 1.004 46 1946 0.929 46 1947 0.842 46 1948 0.927 46 1949 1.047 46 1950 1.606 46 1951 1.17 46 1952 1.41 46 1953 1.436 46 1954 1.185 46 1955 1.165 46 1956 1.025 46 1957 1.004 46 1958 1.279 46 1959 1.199 46 1960 0.478 46 1961 0.731 46 1962 0.777 46 1963 0.951 46 1964 0.949 46 1965 0.893 46 1966 0.902 46 1967 0.9 46 1968 0.898 46 1969 0.993 46 1970 1.192 46 1971 1.026 46 1972 0.983 46 1973 1.008 46 1974 1.156 46 1975 0.989 46 1976 1.299 46 1977 0.971 46 1978 1.002 46 1979 0.579 46 1980 0.92 46 1981 1.176 45 1982 1.005 45 1983 0.832 45 1984 1.195 45 1985 1.019 45 1986 0.727 45 1987 0.686 45 1988 0.717 45 1989 1.005 45 1990 0.999 45 1991 1 45 1992 1.083 45 1993 0.822 45 1994 1.084 45 1995 0.88 45 1996 0.899 45 1997 0.91 45 1998 1.084 45 1999 1.274 45 2000 0.964 45 2001 1.158 44