Garryland Wood, Ireland Additional descriptive information M.G.L. Baillie and D.M. Brown The trees at turlough site were examined because they are periodically flooded to height of about 5m during the winter. No conistent scars or indications of flooding was observed on the cores or slices. Detrend method: Linear regression of any slope Cores and slices available for examination at the laboratory: Palaeoecology Centre, 42 Fitzwilliam Street, Belfast, BT9 6AX, Northern Ireland. COFECHA output: Brit040.cof.txt - garryland wood oak Program COF 11:04 Mon 14 JUN 1999 Page 1 [] [] P R O G R A M C O F E C H A Version 3.00P 23542 ------------------------------------------------------------------------- ---------------------------------------------------------- QUALITY CONTROL AND DATING CHECK OF TREE-RING MEASUREMENTS Title of run: garryland wood File of DATED series: garryln.tuc CONTENTS: Part 1: Title page, options selected, summary, absent rings by series Part 2: Histogram of time spans Part 3: Master series with sample depth and absent rings by year Part 4: Bar plot of Master Dating Series Part 5: Correlation by segment of each series with Master Part 6: Potential problems: low correlation, divergent year-to-year changes, absent rings, outliers Part 7: Descriptive statistics RUN CONTROL OPTIONS SELECTED VALUE 1 Cubic smoothing spline 50 avelength cutoff for filtering 32 years 2 Segments examined are 50 years lagged successively by 25 years 3 Autoregressive model applied A Residuals are used in master dating series and testing 4 Series transformed to logarithms Y Each series log-transformed for master dating series and testing 5 Critical correlation, 99 onfidence level .3281 6 Master dating series saved N 7 Ring measurements listed N 8 Parts printed 1234567 9 Absent rings included in master series N Time span of Master dating series is 1841 to 1997 157 years Continuous time span is 1841 to 1997 157 years Portion with two or more series is 1843 to 1997 155 years **************************************** *C* Number of dated series 14 *C* *O* Master series 1841 1997 157 yrs *O* *F* Total rings in all series 1840 *F* *E* Total dated rings checked 1838 *E* *C* Series intercorrelation .626 *C* *H* Average mean sensitivity .328 *H* *A* Segments, possible problems 1 *A* **************************************** ABSENT RINGS listed by SERIES: (See Master Dating Series for absent rings listed by year) No ring measurements of zero value PART 2: TIME PLOT OF TREE-RING SERIES: garryland wood 11:04 Mon 14 JUN 1999 Page 2 ------------------------------------------------------------------------- ---------------------------------------------------------- 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 Beg End Ident Seq year year Yrs : : : : : : : : : : : : : : : : : : : : : -------- --- ---- ---- ---- . . . . . . . . . . . . . . . . . . <=========>. Q 9491 1 1895 1997 103 . . . . . . . . . . . . . . . . . . <===========>. Q 9493 2 1872 1993 122 . . . . . . . . . . . . . . . . . . <===========>. Q 9494 3 1873 1997 125 . . . . . . . . . . . . . . . . . <==============>. Q 9495 4 1841 1997 157 . . . . . . . . . . . . . . . . . <==============>. Q 9496 5 1843 1997 155 . . . . . . . . . . . . . . . . . <=============>. Q 9497 6 1851 1997 147 . . . . . . . . . . . . . . . . . <=============>. Q 9498 7 1850 1997 148 . . . . . . . . . . . . . . . . . .<============>. Q 9499 8 1860 1997 138 . . . . . . . . . . . . . . . . . . <=========>. Q 9500 9 1890 1997 108 . . . . . . . . . . . . . . . . . . <===========>. Q 9501 10 1875 1997 123 . . . . . . . . . . . . . . . . . . <===========>. Q 9502 11 1874 1997 124 . . . . . . . . . . . . . . . . . . <===========>. Q 9503 12 1875 1997 123 . . . . . . . . . . . . . . . . . . <===========>. Q 9508 13 1872 1997 126 . . . . . . . . . . . . . . . . . <=============>. Q 9510 14 1857 1997 141 : : : : : : : : : : : : : : : : : : : : : 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 PART 3: Master Dating Series: garryland wood 11:04 Mon 14 JUN 1999 Page 3 ------------------------------------------------------------------------- ---------------------------------------------------------- Year Value No Ab Year Value No Ab Year Value No Ab Year Value No Ab Year Value No Ab Year Value No Ab ------------------ ------------------ ------------------ ------------------ ------------------ ------------------ 1850 .428 3 1900 .513 14 1950 -.048 14 1851 .138 4 1901 -.023 14 1951 -.019 14 1852 .960 4 1902 -1.794 14 1952 -.420 14 1853 -1.253 4 1903 .639 14 1953 -.470 14 1854 .745 4 1904 1.640 14 1954 .035 14 1855 1.682 4 1905 -.798 14 1955 -.524 14 1856 .595 4 1906 .742 14 1956 -.428 14 1857 .206 5 1907 1.272 14 1957 -1.288 14 1858 -1.141 5 1908 .150 14 1958 .535 14 1859 -1.035 5 1909 -.390 14 1959 .229 14 1860 1.429 6 1910 .930 14 1960 1.276 14 1861 2.189 6 1911 -.860 14 1961 .830 14 1862 1.112 6 1912 .228 14 1962 1.108 14 1863 -.908 6 1913 1.396 14 1963 -.637 14 1864 -.978 6 1914 -.975 14 1964 -.411 14 1865 -1.038 6 1915 -.171 14 1965 .330 14 1866 -.199 6 1916 -1.322 14 1966 1.192 14 1867 -.645 6 1917 -.679 14 1967 -.535 14 1868 -1.466 6 1918 -1.198 14 1968 -.197 14 1869 -1.662 6 1919 -.760 14 1969 .714 14 1870 -1.302 6 1920 .056 14 1970 -.982 14 1871 -.553 6 1921 -.153 14 1971 -.869 14 1872 .167 8 1922 .517 14 1972 -1.964 14 1873 .183 9 1923 .612 14 1973 -.679 14 1874 1.062 10 1924 1.492 14 1974 .448 14 1875 .785 12 1925 .448 14 1975 -.245 14 1876 -.095 12 1926 .859 14 1976 .717 14 1877 -.177 12 1927 -.258 14 1977 -.649 14 1878 .838 12 1928 .621 14 1978 -1.302 14 1879 .442 12 1929 -.689 14 1979 -.668 14 1880 .446 12 1930 .259 14 1980 .119 14 1881 .013 12 1931 .625 14 1981 1.285 14 1882 -.899 12 1932 -1.042 14 1982 2.112 14 1883 1.502 12 1933 -1.009 14 1983 .067 14 1884 -.073 12 1934 -2.171 14 1984 -.022 14 1885 -.507 12 1935 .657 14 1985 .838 14 1886 .486 12 1936 1.334 14 1986 -1.382 14 1887 -1.228 12 1937 1.055 14 1987 .334 14 1888 .148 12 1938 .509 14 1988 .574 14 1889 -.444 12 1939 -.922 14 1989 .346 14 1890 .513 13 1940 -.752 14 1990 .250 14 1841 -.200 1 1891 .572 13 1941 -.585 14 1991 1.293 14 1842 2.411 1 1892 .915 13 1942 -.102 14 1992 -1.459 14 1843 .874 2 1893 -1.455 13 1943 -1.313 14 1993 -.053 14 1844 -3.772 2 1894 -.791 13 1944 .596 14 1994 .459 13 1845 .107 2 1895 -1.404 14 1945 1.826 14 1995 .315 13 1846 .860 2 1896 -.241 14 1946 1.381 14 1996 -1.763 13 1847 -.202 2 1897 2.269 14 1947 1.553 14 1997 .447 13 1848 .439 2 1898 -.122 14 1948 .083 14 1849 -2.461 2 1899 .038 14 1949 -1.168 14 ------------------------------------------------------------------------- ---------------------------------------------------------- PART 4: Master Bar Plot: garryland wood 11:04 Mon 14 JUN 1999 Page 4 ------------------------------------------------------------------------- ---------------------------------------------------------- Year Rel value Year Rel value Year Rel value Year Rel value Year Rel value Year Rel value Year Rel value Year Rel value 1850-------B 1900-------B 1950-----@ 1851-----A 1901-----@ 1951-----@ 1852---------D 1902g 1952---b 1853-e 1903--------C 1953---b 1854--------C 1904----------G 1954-----@ 1855----------G 1905--c 1955---b 1856-------B 1906--------C 1956---b 1857------A 1907---------E 1957-e 1858-e 1908-----A 1958-------B 1859-d 1909---b 1959------A ---- ---- ---- ---- ---- ---- ---- ---- 1860----------F 1910---------D 1960---------E 1861----------I 1911--c 1961--------C 1862---------D 1912------A 1962---------D 1863--d 1913----------F 1963--c 1864-d 1914-d 1964---b 1865-d 1915----a 1965------A 1866----a 1916e 1966---------E 1867--c 1917--c 1967---b 1868f 1918-e 1968----a 1869g 1919--c 1969--------C ---- ---- ---- ---- ---- ---- ---- ---- 1870-e 1920-----@ 1970-d 1871---b 1921----a 1971--c 1872-----A 1922-------B 1972h 1873-----A 1923-------B 1973--c 1874---------D 1924----------F 1974-------B 1875--------C 1925-------B 1975----a 1876----@ 1926--------C 1976--------C 1877----a 1927----a 1977--c 1878--------C 1928--------B 1978-e 1879-------B 1929--c 1979--c ---- ---- ---- ---- ---- ---- ---- ---- 1880-------B 1930------A 1980-----@ 1881-----@ 1931--------C 1981---------E 1882--d 1932-d 1982----------H 1883----------F 1933-d 1983-----@ 1884----@ 1934i 1984-----@ 1885---b 1935--------C 1985--------C 1886-------B 1936---------E 1986f 1887-e 1937---------D 1987------A 1888-----A 1938-------B 1988-------B 1889---b 1939--d 1989------A ---- ---- ---- ---- ---- ---- ---- ---- 1890-------B 1940--c 1990------A 1841----a 1891-------B 1941---b 1991---------E 1842----------J 1892---------D 1942----@ 1992f 1843--------C 1893f 1943e 1993-----@ 1844o 1894--c 1944-------B 1994-------B 1845-----@ 1895f 1945----------G 1995------A 1846--------C 1896----a 1946----------F 1996g 1847----a 1897----------I 1947----------F 1997-------B 1848-------B 1898----@ 1948-----@ 1849j 1899-----@ 1949-e PART 5: CORRELATION OF SERIES BY SEGMENTS: garryland wood 11:04 Mon 14 JUN 1999 Page 5 ------------------------------------------------------------------------- ---------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1825 1850 1875 1900 1925 1950 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 Q 9491 1895 1997 .62 .56 .45 .40 2 Q 9493 1872 1993 .49 .52 .68 .70 .72 3 Q 9494 1873 1997 .70 .70 .79 .77 .71 4 Q 9495 1841 1997 .86 .86 .78 .73 .66 .67 5 Q 9496 1843 1997 .67 .49 .33 .43 .47 .64 6 Q 9497 1851 1997 .76 .66 .69 .69 .70 7 Q 9498 1850 1997 .77 .74 .75 .66 .49 8 Q 9499 1860 1997 .81 .81 .77 .68 .62 9 Q 9500 1890 1997 .76 .79 .52 .39 10 Q 9501 1875 1997 .79 .78 .72 .64 11 Q 9502 1874 1997 .54 .54 .52 .61 .63 12 Q 9503 1875 1997 .60 .66 .44 .29B 13 Q 9508 1872 1997 .45 .47 .51 .33 .41 14 Q 9510 1857 1997 .62 .49 .53 .64 .65