Chronology file name : BRIT032.CRN Measurement file name : BRIT032.RWL Date checked : 10MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1825 Ending year : 1987 Principal investigators: Hilam, J. Site name : Porter Brook Site location : UK Species information : FREX EUROPEAN ASH Latitude : 5330 Longitude : -130 Elevation : 0M Series intercorrelation: 0.362 Avg mean sensitivity : 0.194 Avg standard deviation : 0.583 Avg autocorrelation : 0.800 Number dated series : 5 Segment length tested : 50 Number problem segments: 11 Pct problem segments : 36.67 PART 5: CORRELATION OF SERIES BY SEGMENTS: brit032.rwl 16:51 Thu 10 Mar 2005 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 PB01.D 1847 1987 .32A .34 .51 .47 .41 -.02B 2 PB02.D 1839 1987 .42 .51 .41 .48 .48 .45 3 PB11.D 1849 1987 .42 .44 .48 .56 .60 .53 4 PB12.D 1825 1987 .36 .25A .19B .34B .35 .30A 5 PB13.D 1831 1987 .31A .31A .14B .21B .41 .26A Av segment correlation .36 .37 .35 .41 .45 .30 PART 7: DESCRIPTIVE STATISTICS: brit032.rwl 16:51 Thu 10 Mar 2005 Page 6 ------------------------------------------------------------------------------------------------------------------------------------ Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 PB01.D 1847 1987 141 6 2 .291 1.65 5.70 .738 .795 .208 2.83 .553 -.061 1 2 PB02.D 1839 1987 149 6 0 .451 1.56 3.44 .510 .713 .177 2.78 .507 -.041 1 3 PB11.D 1849 1987 139 6 0 .506 1.35 3.10 .503 .825 .177 2.77 .448 -.024 1 4 PB12.D 1825 1987 163 6 4 .317 1.07 3.68 .522 .749 .227 2.76 .494 -.046 1 5 PB13.D 1831 1987 157 6 5 .257 1.14 4.36 .645 .916 .181 2.78 .456 -.063 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 749 30 11 .362 1.34 5.70 .583 .800 .194 2.83 .491 -.047