# Touchan - Dahllia - PIHA - ITRDB TUNI002 #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite original publication, online resource and date accessed when using these data, # If there is no publication information, please cite investigator, title, online resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/9922 # Description: NOAA Landing Page of study # Online_Resource: https://www1.ncdc.noaa.gov//pub/data/paleo/treering/chronologies/africa/tuni002r-noaa.crn # Description: Chronology - NOAA Template File # # Original_Source_URL: https://www1.ncdc.noaa.gov/pub/data/paleo/treering/chronologies/africa/tuni002r.crn # Description: Chronology - Tucson Decadal File # # Archive: Tree Ring # # Dataset_DOI: # # Parameter_Keywords: ring width #------------------- # Contribution_Date # Date: 2010-10-20 #------------------- # File_Last_Modified_Date # Date: 2018-12-12 #------------------- # Title # Study_Name: Touchan - Dahllia - PIHA - ITRDB TUNI002 #------------------- # Investigators: Touchan, R. #------------------- # Description_Notes_and_Keywords # Description: NOAA Template Chronology file added 2018-12-12. #------------------- # 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 # Report_Number: # DOI: 10.1007/s00382-010-0804-4 # Full_Citation: # 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. #------------------- # Site_Information # Site_Name: Dahllia # Location: Tunisia # Northernmost_Latitude: 36.2333 # Southernmost_Latitude: 36.2333 # Easternmost_Longitude: 8.4333 # Westernmost_Longitude: 8.4333 # Elevation: 950 #------------------- # Data_Collection # Collection_Name: TUNI002 # Earliest_Year: 1890 # Most_Recent_Year: 2003 # Time_Unit: AD # Notes: #------------------- # Species # Species_Name: Pinus halepensis Mill. # Common_Name: Aleppo pine # Tree_Species_Code: PIHA #------------------- # Chronology_Information # Chronology: #--------------------- # Variables # variables format: shortname var components: what,material,error,units,season,archive,detail,method, C or N for Char or Numeric data,additional information ## age_CE age,,,year Common Era,,tree ring,,,N, ## trsgi tree ring standardized growth index,,,,,tree ring,composited,residual,N, ## numsamp number of samples,,,count,,tree ring,,,N, # #-------------------- # Data: # Missing_Values: -999 age_CE trsgi numsamp 1893 855 1 1894 1115 2 1895 1121 2 1896 704 2 1897 955 4 1898 1191 5 1899 1160 6 1900 788 8 1901 992 9 1902 773 9 1903 1219 9 1904 715 9 1905 1075 9 1906 1092 9 1907 906 11 1908 960 12 1909 1214 13 1910 1070 13 1911 837 14 1912 843 15 1913 1013 15 1914 812 15 1915 1143 15 1916 814 15 1917 974 15 1918 1043 16 1919 1226 16 1920 902 16 1921 1273 16 1922 867 16 1923 1041 16 1924 595 16 1925 1047 16 1926 1123 16 1927 681 16 1928 1409 16 1929 1391 16 1930 939 16 1931 1022 16 1932 1267 16 1933 904 16 1934 834 16 1935 1018 16 1936 816 16 1937 975 16 1938 773 16 1939 1455 16 1940 910 16 1941 958 16 1942 1007 16 1943 963 16 1944 733 16 1945 368 16 1946 710 17 1947 567 17 1948 993 18 1949 931 18 1950 1009 18 1951 626 18 1952 1355 18 1953 1225 19 1954 1181 19 1955 1236 19 1956 869 19 1957 1057 19 1958 1033 19 1959 1601 19 1960 796 19 1961 509 19 1962 893 19 1963 1117 19 1964 911 19 1965 860 19 1966 1017 19 1967 468 19 1968 700 19 1969 651 19 1970 1130 19 1971 681 19 1972 1050 19 1973 1062 19 1974 870 19 1975 1188 19 1976 1467 19 1977 899 19 1978 938 19 1979 1182 19 1980 1304 19 1981 1038 19 1982 970 19 1983 1059 19 1984 1219 19 1985 1095 19 1986 867 19 1987 1132 19 1988 496 18 1989 680 18 1990 662 18 1991 1468 18 1992 2239 18 1993 524 18 1994 1083 18 1995 742 18 1996 1376 18 1997 541 18 1998 1106 18 1999 804 17 2000 1103 17 2001 759 17 2002 433 13 2003 1194 1