# Touchan - Dahllia - PIHA - ITRDB TUNI002 #---------------------------------------------------- # 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/9922 # 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-9922.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/tuni002-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; tuni002-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/africa/tuni002.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 - Dahllia - PIHA - ITRDB TUNI002 #-------------------- # 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: Dahllia # Location: Tunisia # Northernmost_Latitude: 36.2333 # Southernmost_Latitude: 36.2333 # Easternmost_Longitude: 8.4333 # Westernmost_Longitude: 8.4333 # Elevation_m: 950 #-------------------- # Data_Collection # Collection_Name: TUNI002 # First_Year: 1890 # 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 1890 0.765 1 1891 0.61 1 1892 0.876 1 1893 0.992 2 1894 1.085 2 1895 1.205 3 1896 0.714 5 1897 0.947 6 1898 1.393 7 1899 1.281 8 1900 0.839 9 1901 0.917 9 1902 0.818 9 1903 1.139 9 1904 0.808 9 1905 0.968 10 1906 1.187 13 1907 0.988 13 1908 0.905 13 1909 1.212 13 1910 1.168 15 1911 0.835 15 1912 0.77 15 1913 1.001 15 1914 0.849 15 1915 1.065 15 1916 0.882 16 1917 0.887 16 1918 1.027 16 1919 1.283 16 1920 0.922 16 1921 1.234 16 1922 0.952 16 1923 0.975 16 1924 0.602 16 1925 0.924 16 1926 1.197 16 1927 0.691 16 1928 1.282 16 1929 1.562 16 1930 0.988 16 1931 0.887 16 1932 1.293 16 1933 0.957 16 1934 0.727 16 1935 0.993 16 1936 0.86 16 1937 0.945 16 1938 0.788 16 1939 1.41 16 1940 1.081 16 1941 0.867 16 1942 0.972 16 1943 0.984 16 1944 0.719 16 1945 0.269 17 1946 0.555 17 1947 0.579 18 1948 0.917 18 1949 0.938 18 1950 0.96 18 1951 0.567 19 1952 1.193 19 1953 1.384 19 1954 1.211 19 1955 1.184 19 1956 0.9 19 1957 0.98 19 1958 1.055 19 1959 1.575 19 1960 0.894 19 1961 0.335 19 1962 0.787 19 1963 1.203 19 1964 0.968 19 1965 0.755 19 1966 0.995 19 1967 0.491 19 1968 0.575 19 1969 0.681 19 1970 1.116 19 1971 0.774 19 1972 0.973 19 1973 1.167 19 1974 0.944 19 1975 1.123 19 1976 1.552 19 1977 1.065 19 1978 0.812 19 1979 1.222 19 1980 1.391 19 1981 1.007 19 1982 0.884 19 1983 1.003 19 1984 1.258 19 1985 1.088 19 1986 0.786 19 1987 1.047 19 1988 0.58 18 1989 0.528 18 1990 0.655 18 1991 1.456 18 1992 2.463 18 1993 0.706 18 1994 0.608 18 1995 0.824 18 1996 1.356 18 1997 0.656 18 1998 0.908 18 1999 0.923 17 2000 1.066 17 2001 0.789 17 2002 0.245 13 2003 1.105 1