# Villanueva - Bacadehuachi - PIAZ - ITRDB MEXI099 #---------------------------------------------------- # 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/20907 # 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-20907.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: #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/mexico/mexi099-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; mexi099-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/mexico/mexi099.crn # Related_Online_Description: CRN File; Chronology - Tucson Decadal File # #-------------------- # Contribution_Date # Date: 2016-07-27 #-------------------- # File_Last_Modified_Date # Date: 2016-07-27 #-------------------- # Title # Study_Name: Villanueva - Bacadehuachi - PIAZ - ITRDB MEXI099 #-------------------- # Investigators # Investigators: Villanueva, J. #-------------------- # Description_Notes_and_Keywords # Description: NOAA Template Raw Measurements file added 2019-02-04. #-------------------- # Publication # Authors: David W. Stahle, Edward R. Cook, Dorian J. Burnette, Jose Villanueva, Julian Cerano, Jordan N. Burns, Daniel Griffin, Benjamin I. Cook, Rodolfo Acuna, Max C.A. Torbenson, Paul Sjezner, Ian M. Howard # Journal_Name: Quaternary Science Reviews # Published_Title: The Mexican Drought Atlas: Tree-ring reconstructions of the soil moisture balance during the late pre-Hispanic, colonial, and modern eras # Published_Date_or_Year: 2016 # Volume: 149 # Pages: 34-60 # Issue: # Report_Number: # DOI: 10.1016/j.quascirev.2016.06.018 # Full_Citation: None # Abstract: Mexico has suffered a long history and prehistory of severe sustained drought. Drought over Mexico is modulated by ocean-atmospheric variability in the Atlantic and Pacific, raising the possibility for long-range seasonal climate forecasting, which could help mediate the economic and social impacts of future dry spells. The instrumental record of Mexican climate is very limited before 1920, but tree-ring chronologies developed from old-growth forests in Mexico can provide an excellent proxy representation of the spatial pattern and intensity of past moisture regimes useful for the analysis of climate dynamics and climate impacts. The Mexican Drought Atlas (MXDA) has been developed from an extensive network of 252 climate sensitive tree-ring chronologies in and near Mexico. The MXDA reconstructions extend from 1400 CE-2012 and were calibrated with the instrumental summer (JJA) self-calibrating Palmer Drought Severity Index (scPDSI) on a 0.5 latitude/longitude grid extending over land areas from 14 to 34N and 75-120W using Ensemble Point-by-Point Regression (EPPR) for the 1944-1984 period. The grid point reconstructions were validated for the period 1920-1943 against instrumental gridded scPDSI values based on the fewer weather station observations available during that interval. The MXDA provides a new spatial perspective on the historical impacts of moisture extremes over Mexico during the past 600-years, including the Aztec Drought of One Rabbit in 1454, the drought of El Ano de Hambre in 1785-1786, and the drought that preceded the Mexican Revolution of 1909-1910. # The El Nino/Southern Oscillation (ENSO) is the most important ocean-atmospheric forcing of moisture variability detected with the MXDA. In fact, the reconstructions suggest that the strongest central equatorial Pacific sea surface temperature (SST) teleconnection to the soil moisture balance over North America may reside in northern Mexico. This ENSO signal has stronger and more time-stable correlations than computed for either the Atlantic Multidecadal Oscillation or Pacific Decadal Oscillation. The extended Multivariate ENSO Index is most highly correlated with reconstructed scPDSI over northern Mexico, where warm events favor moist conditions during the winter, spring, and early summer. This ENSO teleconnection to northern Mexico has been strong over the past 150 years, but it has been comparatively weak and non-stationary in the MXDA over central and southern Mexico where eastern tropical Pacific and Caribbean/tropical Atlantic SSTs seem to be more important. The ENSO teleconnection to northern Mexico is weaker in the available instrumental PDSI, but analyses based on the millennium climate simulations with the Community Earth System Model suggest that the moisture balance during the winter, spring, and early summer over northern Mexico may indeed be particularly sensitive to ENSO forcing. Nationwide drought is predicted to become more common with anthropogenic climate change, but the MXDA reconstructions indicate that intense "All Mexico" droughts have been rare over the past 600 years and their frequency does not appear to have increased substantially in recent decades. #-------------------- # Funding_Agency # Funding_Agency_Name: # Grant: #-------------------- # Site_Information # Site_Name: Bacadehuachi # Location: Mexico # Northernmost_Latitude: 29.947 # Southernmost_Latitude: 29.947 # Easternmost_Longitude: -107.078 # Westernmost_Longitude: -107.078 # Elevation_m: 2350 #-------------------- # Data_Collection # Collection_Name: MEXI099 # First_Year: 1739 # Last_Year: 1995 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: ring width # Notes: #-------------------- # Species # Species_Name: Pinus arizonica Engelm. # Common_Name: Arizona pine # Tree_Species_Code: PIAZ #-------------------- # 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 1739 0.835 1 1740 1.174 1 1741 1.181 1 1742 1.06 1 1743 1.006 1 1744 0.75 1 1745 0.92 2 1746 1.161 2 1747 1.25 2 1748 1.123 2 1749 1.368 2 1750 1.192 2 1751 1.011 2 1752 0.749 2 1753 1.005 2 1754 1.159 2 1755 0.954 2 1756 0.979 2 1757 0.907 2 1758 1.164 2 1759 0.976 2 1760 0.898 2 1761 0.951 2 1762 1.045 2 1763 0.84 2 1764 1.293 2 1765 0.914 2 1766 0.861 2 1767 0.832 2 1768 0.885 2 1769 0.982 2 1770 0.936 2 1771 0.997 3 1772 0.927 3 1773 1.151 3 1774 1.055 3 1775 1.147 3 1776 1.06 3 1777 1.211 3 1778 0.923 3 1779 1.243 3 1780 0.975 3 1781 1.054 3 1782 0.888 3 1783 1.128 3 1784 1.155 3 1785 0.864 3 1786 1.083 3 1787 1.242 3 1788 1.07 3 1789 0.939 3 1790 1.023 4 1791 1.383 3 1792 1.169 3 1793 1.223 3 1794 0.958 3 1795 1.077 3 1796 1.274 3 1797 1.137 3 1798 0.974 3 1799 1.268 3 1800 1.095 3 1801 1.041 3 1802 1.099 3 1803 1.036 3 1804 1.343 3 1805 1.078 3 1806 1.086 3 1807 0.931 3 1808 0.804 3 1809 1.125 3 1810 1.105 3 1811 1.076 3 1812 0.981 3 1813 1.019 3 1814 1.117 3 1815 1.134 3 1816 1.062 3 1817 1.116 3 1818 1.128 3 1819 1.018 3 1820 1.046 3 1821 1.399 3 1822 0.904 3 1823 0.98 3 1824 0.818 3 1825 0.974 3 1826 0.892 3 1827 1.254 3 1828 1.232 3 1829 1.241 3 1830 1.133 3 1831 0.878 3 1832 1.06 3 1833 1.122 3 1834 0.988 3 1835 1.039 3 1836 1.174 3 1837 1.329 3 1838 1.002 3 1839 1.101 4 1840 0.912 4 1841 0.75 4 1842 0.813 4 1843 0.99 4 1844 1.006 4 1845 0.8 4 1846 0.905 4 1847 0.832 4 1848 0.68 4 1849 0.653 4 1850 0.802 5 1851 0.487 5 1852 0.785 5 1853 0.85 5 1854 0.735 5 1855 0.653 5 1856 0.987 5 1857 0.771 5 1858 0.951 5 1859 0.972 6 1860 0.897 7 1861 0.905 7 1862 0.934 7 1863 0.867 7 1864 0.831 7 1865 0.992 7 1866 0.89 7 1867 1.016 7 1868 0.986 7 1869 1.056 7 1870 0.923 9 1871 1.021 10 1872 0.805 10 1873 0.885 10 1874 0.986 10 1875 1.081 10 1876 1.001 10 1877 0.912 10 1878 0.954 10 1879 0.962 10 1880 0.944 10 1881 0.981 10 1882 0.867 10 1883 0.789 12 1884 0.894 12 1885 0.993 12 1886 0.829 12 1887 0.846 12 1888 1.249 12 1889 1.149 12 1890 0.728 12 1891 0.837 12 1892 0.909 12 1893 0.784 12 1894 0.84 12 1895 0.839 12 1896 0.963 13 1897 0.868 14 1898 1.069 15 1899 0.85 15 1900 1.123 15 1901 1.156 15 1902 0.492 15 1903 1.099 15 1904 0.405 15 1905 1.205 15 1906 1.113 15 1907 1.031 15 1908 1.109 15 1909 0.941 15 1910 0.728 16 1911 0.959 16 1912 1.117 17 1913 1.188 17 1914 0.999 17 1915 1.176 17 1916 1.114 17 1917 1.067 18 1918 0.927 19 1919 1.098 20 1920 1.104 21 1921 0.913 21 1922 1.06 22 1923 0.954 23 1924 1.215 23 1925 0.884 23 1926 1.072 24 1927 1.146 26 1928 0.94 27 1929 1.038 27 1930 1.256 27 1931 1.173 27 1932 1.139 27 1933 1.207 27 1934 0.765 28 1935 0.873 29 1936 0.895 29 1937 0.715 29 1938 0.838 29 1939 0.793 29 1940 1.168 30 1941 1.398 31 1942 1.216 31 1943 1.174 32 1944 1.231 32 1945 0.993 32 1946 1.096 33 1947 1.008 33 1948 0.935 33 1949 1.072 33 1950 1.099 34 1951 0.784 34 1952 1.401 34 1953 0.827 33 1954 0.586 33 1955 0.893 33 1956 0.645 33 1957 1.165 33 1958 1.285 34 1959 0.961 34 1960 0.928 34 1961 0.985 34 1962 1.095 34 1963 1.294 34 1964 1.238 34 1965 1.073 34 1966 0.96 34 1967 0.679 34 1968 1.117 34 1969 1.041 34 1970 1.135 34 1971 0.609 33 1972 0.89 33 1973 1.05 33 1974 0.666 33 1975 0.92 33 1976 0.813 33 1977 0.959 33 1978 1.084 32 1979 1.082 31 1980 0.94 31 1981 1.253 30 1982 0.65 30 1983 1.042 30 1984 1.057 30 1985 1.161 30 1986 1.237 30 1987 1.138 30 1988 1.289 30 1989 0.77 30 1990 1.224 30 1991 1.407 30 1992 1.272 30 1993 1.452 30 1994 1.058 28 1995 1.364 28