# Villanueva - Adjuntas - TAMU - ITRDB MEXI067 #---------------------------------------------------- # 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/20860 # 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-20860.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/mexi067-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; mexi067-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/mexico/mexi067.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 - Adjuntas - TAMU - ITRDB MEXI067 #-------------------- # 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: Adjuntas # Location: Mexico # Northernmost_Latitude: 25.078 # Southernmost_Latitude: 25.078 # Easternmost_Longitude: -104.259 # Westernmost_Longitude: -104.259 # Elevation_m: 1574 #-------------------- # Data_Collection # Collection_Name: MEXI067 # First_Year: 1800 # Last_Year: 2006 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: ring width # Notes: #-------------------- # Species # Species_Name: Taxodium mucronatum Ten. # Common_Name: Montezuma cypress # Tree_Species_Code: TAMU #-------------------- # 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 1800 1.106 3 1801 1.008 3 1802 1.057 3 1803 0.942 3 1804 0.987 3 1805 1.081 3 1806 1.09 3 1807 0.952 3 1808 0.906 3 1809 0.837 3 1810 0.855 3 1811 0.795 3 1812 1.01 3 1813 1.186 3 1814 1.1 3 1815 1.005 3 1816 0.838 3 1817 0.651 3 1818 0.751 3 1819 0.749 3 1820 0.871 3 1821 0.77 3 1822 0.776 3 1823 0.788 3 1824 0.767 3 1825 0.692 3 1826 0.765 3 1827 0.939 3 1828 0.95 3 1829 0.88 3 1830 0.976 4 1831 0.919 4 1832 0.995 4 1833 1.094 4 1834 0.983 4 1835 0.984 4 1836 1.071 4 1837 0.942 4 1838 0.915 4 1839 0.989 4 1840 0.85 4 1841 1.126 4 1842 1.185 4 1843 1.467 5 1844 1.426 5 1845 1.18 5 1846 1.234 5 1847 1.127 6 1848 1.092 6 1849 1.045 6 1850 1.075 7 1851 1.146 8 1852 0.77 8 1853 1.129 8 1854 1.23 8 1855 1.007 8 1856 1.193 8 1857 1.095 9 1858 1.136 9 1859 1.066 9 1860 1.038 11 1861 1.038 11 1862 0.803 11 1863 0.849 11 1864 0.757 11 1865 0.924 11 1866 0.808 11 1867 1.099 11 1868 0.865 11 1869 1.07 11 1870 1.074 11 1871 1.159 11 1872 1.081 11 1873 1.107 11 1874 0.98 11 1875 0.932 11 1876 1.159 11 1877 0.951 11 1878 1.078 11 1879 0.894 11 1880 0.995 19 1881 1.025 19 1882 1.074 20 1883 0.989 20 1884 0.976 20 1885 1.007 21 1886 0.931 21 1887 0.89 21 1888 0.844 21 1889 0.862 21 1890 0.768 22 1891 0.875 22 1892 0.693 22 1893 0.935 22 1894 0.724 22 1895 1.034 22 1896 0.883 22 1897 1.012 22 1898 0.963 22 1899 0.969 22 1900 0.916 24 1901 0.958 24 1902 0.832 24 1903 1.075 24 1904 1.083 24 1905 1.363 24 1906 1.351 24 1907 1.174 24 1908 1.012 24 1909 1.099 24 1910 1.029 26 1911 1.087 26 1912 1.041 26 1913 0.993 26 1914 0.986 26 1915 0.928 26 1916 1.111 26 1917 1.005 26 1918 0.547 26 1919 1.027 26 1920 0.976 27 1921 1.072 27 1922 1.14 27 1923 0.913 27 1924 1.097 27 1925 1.04 27 1926 1.181 27 1927 0.839 27 1928 0.919 27 1929 0.88 27 1930 0.83 29 1931 0.899 29 1932 0.744 29 1933 0.96 29 1934 0.802 29 1935 0.83 29 1936 1.051 29 1937 1.154 29 1938 1.054 29 1939 0.957 29 1940 1.043 29 1941 0.877 29 1942 1.041 29 1943 0.88 29 1944 0.981 29 1945 0.946 29 1946 0.764 29 1947 0.939 29 1948 1.125 29 1949 0.991 29 1950 0.859 29 1951 0.754 29 1952 0.633 29 1953 0.398 29 1954 0.846 29 1955 0.648 29 1956 1.017 29 1957 0.867 29 1958 0.511 29 1959 1.282 29 1960 1.249 31 1961 1.206 31 1962 1.031 31 1963 0.801 31 1964 0.89 31 1965 1.157 31 1966 1.077 31 1967 1.281 31 1968 1.318 31 1969 1.326 31 1970 1.406 31 1971 1.338 31 1972 1.129 31 1973 1.139 31 1974 1.054 31 1975 1.08 31 1976 1.133 31 1977 0.887 31 1978 0.911 31 1979 0.937 31 1980 0.958 31 1981 0.968 31 1982 0.874 31 1983 1.107 31 1984 1.101 31 1985 1.109 31 1986 0.988 31 1987 1.003 31 1988 1.097 31 1989 1.051 31 1990 1.22 31 1991 1.203 31 1992 1.471 31 1993 1.444 31 1994 1.324 31 1995 1.291 31 1996 1.066 31 1997 1.189 31 1998 0.771 31 1999 0.829 31 2000 0.865 31 2001 0.887 31 2002 0.65 31 2003 0.768 31 2004 0.898 31 2005 0.962 31 2006 0.966 31