# Touchan - Jebnoun - PIHA - ITRDB TUNI003 #---------------------------------------------------- # 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/9923 # 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-9923.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/africa/tuni003a-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; tuni003a-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/africa/tuni003a.crn # Related_Online_Description: CRN File; Chronology - Tucson Decadal File # #-------------------- # Contribution_Date # Date: 2010-10-20 #-------------------- # File_Last_Modified_Date # Date: 2010-10-20 #-------------------- # Title # Study_Name: Touchan - Jebnoun - PIHA - ITRDB TUNI003 #-------------------- # Investigators # Investigators: Touchan, R. #-------------------- # Description_Notes_and_Keywords # Description: NOAA Template Chronology file added 2018-12-13. NOAA Template Raw Measurements file added 2019-05-01. #-------------------- # Publication # Authors: Ramzi Touchan, Kevin J. Anchukaitis, David M. Meko, Said Attalah, Christopher Baisan, Ali Aloui # Journal_Name: Climate Dynamics # Published_Title: Spatiotemporal drought variability in northwestern Africa over the last nine centuries # Published_Date_or_Year: 2011 # Volume: 37 # Pages: 237-252 # Issue: 1 # Report_Number: # DOI: 10.1007/s00382-010-0804-4 # Full_Citation: None # Abstract: Changes in precipitation patterns and the frequency and duration of drought are likely to be the feature of anthropogenic climate change that will have the most direct and most immediate consequences for human populations. The latest generation of state-of-the-art climate models project future widespread drying in the subtropics. Here, we reconstruct spatially-complete gridded Palmer drought severity index values back to A.D. 1179 over Morocco, Algeria, and Tunisia. The reconstructions provide long-term context for northwest African hydroclimatology, revealing large-scale regional droughts prior to the sixteenth century, as well as more heterogeneous patterns in sixteenth, eighteenth, and twentieth century. Over the most recent decades a shift toward dry conditions over the region is observed, which is consistent with general circulation model projections of greenhouse gas forced enhanced regional subtropical drought. #-------------------- # Funding_Agency # Funding_Agency_Name: US National Science Foundation # Grant: ESH0317288 #-------------------- # Site_Information # Site_Name: Jebnoun # Location: Tunisia # Northernmost_Latitude: 35.85 # Southernmost_Latitude: 35.85 # Easternmost_Longitude: 9.3 # Westernmost_Longitude: 9.3 # Elevation_m: 800 #-------------------- # Data_Collection # Collection_Name: TUNI003 # First_Year: 1874 # Last_Year: 2003 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: ring width # Notes: #-------------------- # Species # Species_Name: Pinus halepensis Mill. # Common_Name: Aleppo pine # Tree_Species_Code: PIHA #-------------------- # 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 1875 0.068 1 1876 0.261 1 1877 0.598 1 1878 0.857 1 1879 0.806 1 1880 0.903 1 1881 0.843 1 1882 0.774 1 1883 1.26 1 1884 2.832 1 1885 2.934 2 1886 2.021 2 1887 1.129 2 1888 0.09 2 1889 0.529 2 1890 0.953 2 1891 0.877 2 1892 1.165 2 1893 0.416 2 1894 0.635 2 1895 0.568 3 1896 0.828 3 1897 0.763 3 1898 1.193 3 1899 0.982 3 1900 0.735 3 1901 0.788 3 1902 0.367 3 1903 0.785 3 1904 1.31 4 1905 1.015 5 1906 1.293 6 1907 1.452 6 1908 0.9 6 1909 0.883 7 1910 0.714 7 1911 1.227 7 1912 1.13 8 1913 0.933 8 1914 0.776 8 1915 1.093 8 1916 0.961 8 1917 0.691 9 1918 1.05 10 1919 1.043 10 1920 0.799 10 1921 1.078 10 1922 0.823 11 1923 0.98 11 1924 0.764 11 1925 0.762 11 1926 1.173 11 1927 0.623 11 1928 0.899 11 1929 1.285 12 1930 1.109 12 1931 0.754 13 1932 1.084 14 1933 1.392 14 1934 0.94 15 1935 0.924 15 1936 0.802 15 1937 0.633 15 1938 0.467 15 1939 1.105 15 1940 0.854 15 1941 0.941 17 1942 0.981 17 1943 1.014 17 1944 0.69 17 1945 0.433 17 1946 1.043 17 1947 0.596 17 1948 0.826 17 1949 1.433 18 1950 1.273 18 1951 0.852 18 1952 0.95 20 1953 1.018 21 1954 1.029 23 1955 0.812 23 1956 0.764 23 1957 0.916 23 1958 1.181 23 1959 1.745 23 1960 1.315 23 1961 0.679 23 1962 0.871 23 1963 1.12 23 1964 1.385 23 1965 1.019 23 1966 0.816 24 1967 0.686 25 1968 0.868 25 1969 0.738 25 1970 1.17 25 1971 0.988 25 1972 1.407 25 1973 1.317 25 1974 0.835 25 1975 0.805 25 1976 1.273 25 1977 1.248 25 1978 0.683 25 1979 0.726 25 1980 0.862 25 1981 0.919 25 1982 0.745 25 1983 0.964 25 1984 0.914 25 1985 1.032 25 1986 0.664 25 1987 1.123 25 1988 0.733 25 1989 0.826 25 1990 1.104 25 1991 1.372 25 1992 1.889 25 1993 1.461 25 1994 0.697 24 1995 0.33 24 1996 1.143 24 1997 0.913 24 1998 0.944 24 1999 1.235 24 2000 0.958 24 2001 0.925 24 2002 0.235 23 2003 1.408 21