Chronology file name : AR036.CRN Measurement file name : AR036.RWL Date checked : 01JUL96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1779 Ending year : 1980 Principal investigators: D.W. STAHLE, G.G. HAWKS Site name : LEVI WILCOXON FOREST Site location : ARKANSAS, USA Species information : PIEC SHORTLEAF PINE Latitude : 3810N Longitude : 9149W Elevation : 45 M Series intercorrelation: 0.644 Avg mean sensitivity : 0.319 Avg standard deviation : 0.876 Avg autocorrelation : 0.681 Number dated series : 27 Segment length tested : 50 Number problem segments: 1 Pct problem segments : 0.72 Are there obvious misdated series? NO Number possible misdated series : N/A Percent misdated series : 0.00 Do they affect chronology quality? N/A Recommend withhold from ITRDB? N/A Comments: #18 LWI11A 1827-1850 HAS LOW CORRELATION EXCELLENT HIGH QUALITY DATA SET PART 5: CORRELATION OF SERIES BY SEGMENTS: 23:33 Mon 01 JUL 1996 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under 0.3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1775 1800 1825 1850 1875 1900 1925 1950 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 LWI04A 1881 1980 .62 .68 .71 .69 2 LWI04B 1874 1980 .43 .46 .55 .71 .71 3 LWI06A 1807 1980 .47 .55 .73 .71 .62 .62 .59 4 LWI06B 1787 1980 .40 .50 .68 .78 .63 .64 .70 .61 5 LWI07A 1791 1980 .60 .80 .86 .87 .69 .63 .54 .43 6 LWI07B 1821 1980 .78 .79 .78 .69 .68 .57 .57 7 LWI07C 1779 1957 .55 .73 .81 .85 .70 .66 .71 8 LWI10A 1865 1980 .64 .68 .69 .65 .61 9 LWI10B 1858 1980 .68 .66 .66 .69 .62 10 LWI12A 1865 1976 .65 .65 .70 .79 .78 11 LWI12B 1895 1980 .66 .60 .68 .66 12 LWI18A 1891 1980 .73 .69 .73 .73 13 LWI18B 1870 1980 .72 .67 .66 .66 .67 14 LWI42A 1897 1980 .52 .59 .55 .58 15 LWI42B 1894 1980 .70 .72 .71 .74 16 LWI03A 1864 1980 .63 .61 .62 .77 .76 17 LWI08A 1885 1980 .73 .72 .72 .72 18 LWI11A 1827 1978 .34B .61 .72 .56 .59 .59 19 LWI13B 1807 1980 .70 .77 .80 .73 .68 .71 .67 20 LWI32A 1891 1980 .43 .45 .51 .61 21 LWI34A 1854 1980 .69 .48 .55 .72 .72 22 LWI36A 1868 1980 .51 .51 .67 .84 .77 23 LWI37A 1870 1980 .48 .44 .72 .76 .75 24 LWI43A 1854 1980 .66 .45 .65 .77 .73 25 LWI17A 1876 1970 .44 .41 .60 26 LWI38A 1857 1950 .44 .44 .57 .56 27 LWI40A 1870 1970 .58 .59 .62 .74 PART 7: DESCRIPTIVE STATISTICS: 23:33 Mon 01 JUL 1996 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 LWI04A 1881 1980 100 4 0 0.657 2.90 7.39 1.588 0.828 0.295 1.97 0.394 0.028 1 2 LWI04B 1874 1980 107 5 0 0.588 2.92 6.15 1.248 0.714 0.259 2.20 0.457 0.036 1 3 LWI06A 1807 1980 174 7 0 0.633 1.61 5.76 1.191 0.820 0.336 2.11 0.407 -0.020 1 4 LWI06B 1787 1980 194 8 0 0.604 1.37 5.32 0.809 0.738 0.308 2.00 0.337 0.024 1 5 LWI07A 1791 1980 190 8 0 0.654 1.28 3.82 0.690 0.662 0.349 1.99 0.254 0.004 1 6 LWI07B 1821 1980 160 7 0 0.694 1.28 3.73 0.775 0.736 0.348 2.10 0.410 0.021 1 7 LWI07C 1779 1957 179 7 0 0.698 1.35 3.25 0.705 0.644 0.397 1.94 0.294 0.009 1 8 LWI10A 1865 1980 116 5 0 0.654 2.18 4.78 0.754 0.471 0.290 2.04 0.345 0.003 1 9 LWI10B 1858 1980 123 5 0 0.651 1.87 5.63 0.977 0.692 0.331 1.93 0.316 0.000 3 10 LWI12A 1865 1976 112 5 0 0.711 1.85 3.96 0.814 0.663 0.315 2.08 0.472 0.031 1 11 LWI12B 1895 1980 86 4 0 0.663 1.90 4.47 0.798 0.635 0.304 2.07 0.421 -0.001 1 12 LWI18A 1891 1980 90 4 0 0.718 0.72 2.45 0.436 0.762 0.406 1.89 0.325 0.003 1 13 LWI18B 1870 1980 111 5 0 0.677 0.73 2.29 0.444 0.705 0.332 1.89 0.330 0.005 1 14 LWI42A 1897 1980 84 4 0 0.528 0.92 2.63 0.459 0.703 0.317 2.08 0.435 -0.047 3 15 LWI42B 1894 1980 87 4 0 0.686 1.35 3.05 0.477 0.553 0.275 2.17 0.466 -0.042 1 16 LWI03A 1864 1980 117 5 0 0.682 2.08 4.26 0.771 0.691 0.257 1.99 0.458 0.010 1 17 LWI08A 1885 1980 96 4 0 0.721 1.95 4.23 0.971 0.833 0.250 1.86 0.327 0.024 1 18 LWI11A 1827 1978 152 6 1 0.517 1.03 3.23 0.622 0.632 0.419 2.08 0.364 0.021 1 19 LWI13B 1807 1980 174 7 0 0.737 1.81 4.64 0.842 0.607 0.347 1.95 0.257 0.013 2 20 LWI32A 1891 1980 90 4 0 0.517 2.15 4.62 0.798 0.714 0.235 2.20 0.384 -0.075 2 21 LWI34A 1854 1980 127 5 0 0.666 1.96 4.73 0.877 0.662 0.297 1.96 0.347 0.041 1 22 LWI36A 1868 1980 113 5 0 0.646 2.56 5.92 1.079 0.783 0.211 2.29 0.423 -0.025 1 23 LWI37A 1870 1980 111 5 0 0.627 2.27 4.29 0.902 0.580 0.284 1.79 0.344 -0.010 1 24 LWI43A 1854 1980 127 5 0 0.672 1.90 4.54 0.907 0.577 0.356 2.00 0.351 -0.063 1 25 LWI17A 1876 1970 95 3 0 0.516 1.84 4.42 0.860 0.679 0.315 2.09 0.420 -0.004 1 26 LWI38A 1857 1950 94 4 0 0.500 2.15 5.20 0.883 0.367 0.334 2.35 0.475 0.047 1 27 LWI40A 1870 1970 101 4 0 0.672 2.83 8.98 2.145 0.916 0.275 2.02 0.381 -0.033 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3310 139 1 0.644 1.76 8.98 0.876 0.681 0.319 2.35 0.368 0.002