Chronology file name : TX006.CRN Measurement file name : TX006.RWL Date checked : 02SEP96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1737 Ending year : 1980 Principal investigators: D.W. STAHLE Site name : FORT WORTH Site location : TEXAS, USA Species information : QUST POST OAK Latitude : 3251N Longitude : 9729W Elevation : 190 M Series intercorrelation: 0.698 Avg mean sensitivity : 0.264 Avg standard deviation : 0.358 Avg autocorrelation : 0.684 Number dated series : 47 Segment length tested : 50 Number problem segments: 3 Pct problem segments : 0.88 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: #32 FTW47B 1925-1980 HAS LOW CORRELATIONS EXCELLENT HIGH QUALITY CHRONOLOGY PART 5: CORRELATION OF SERIES BY SEGMENTS: 15:52 Mon 02 SEP 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 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 FTW03A 1755 1980 .54 .60 .66 .67 .75 .75 .78 .76 .70 2 FTW03B 1751 1980 .70 .73 .72 .77 .76 .73 .74 .74 .73 3 FTW04A 1778 1980 .66 .77 .80 .89 .87 .82 .85 .84 4 FTW04B 1775 1980 .72 .78 .82 .88 .77 .76 .82 .83 5 FTW05A 1780 1919 .81 .82 .84 .80 .75 6 FTW05B 1785 1980 .70 .78 .80 .82 .79 .65 .51 .42 7 FTW09A 1805 1980 .85 .65 .64 .73 .78 .74 .73 8 FTW09B 1799 1980 .82 .83 .83 .83 .76 .70 .59 .54 9 FTW17A 1748 1980 .73 .73 .83 .74 .78 .77 .77 .85 .48 .41 10 FTW17B 1761 1980 .70 .81 .74 .79 .83 .73 .62 .46 .38 11 FTW18A 1830 1980 .87 .88 .85 .86 .86 .83 12 FTW18B 1827 1980 .76 .73 .65 .72 .75 .66 13 FTW20A 1835 1980 .76 .84 .82 .82 .85 .81 14 FTW20B 1835 1980 .70 .83 .84 .75 .73 .70 15 FTW24A 1838 1980 .72 .72 .75 .76 .78 .79 16 FTW24B 1803 1980 .67 .79 .83 .79 .70 .69 .71 17 FTW26A 1830 1980 .63 .81 .68 .70 .75 .73 18 FTW26B 1841 1980 .78 .83 .73 .75 .69 .67 19 FTW33A 1840 1980 .85 .85 .75 .55 .51 .45 20 FTW33B 1814 1980 .73 .79 .86 .81 .72 .67 .64 21 FTW35A 1753 1980 .61 .68 .67 .73 .72 .82 .73 .51 .45 22 FTW35B 1752 1980 .73 .67 .67 .74 .69 .77 .82 .76 .73 23 FTW38A 1832 1980 .69 .71 .75 .77 .68 .62 24 FTW38B 1757 1980 .73 .67 .70 .74 .72 .72 .72 .59 .62 25 FTW41A 1777 1980 .63 .49 .60 .76 .78 .83 .77 .76 26 FTW41B 1750 1980 .55 .74 .59 .65 .84 .76 .69 .68 .69 27 FTW42A 1846 1980 .64 .71 .75 .75 .76 .70 28 FTW42B 1830 1980 .49 .72 .69 .64 .70 .71 29 FTW43A 1760 1980 .80 .79 .79 .83 .74 .71 .76 .76 .71 30 FTW43B 1810 1980 .72 .81 .81 .77 .81 .85 .83 31 FTW47A 1737 1980 .70 .60 .64 .77 .85 .82 .72 .53 .33 .39 32 FTW47B 1747 1980 .66 .69 .71 .79 .79 .77 .67 .36 .16B .28A 33 FTW01A 1771 1980 .76 .70 .62 .70 .67 .70 .72 .61 .59 34 FTW10A 1841 1980 .77 .80 .83 .74 .66 .61 35 FTW21A 1757 1980 .76 .69 .76 .68 .34B .44 .71 .59 .45 36 FTW25A 1737 1980 .63 .70 .79 .70 .65 .67 .77 .82 .76 .70 37 FTW28A 1787 1980 .75 .70 .79 .77 .78 .79 .77 .72 38 FTW29A 1801 1980 .45 .69 .77 .85 .77 .68 .65 39 FTW31A 1801 1980 .80 .84 .84 .86 .70 .66 .61 40 FTW32A 1758 1980 .67 .71 .51 .58 .79 .73 .69 .72 .72 41 FTW34A 1812 1980 .49 .59 .65 .63 .63 .54 .51 42 FTW36A 1839 1980 .68 .70 .79 .73 .56 .54 43 FTW07A 1889 1980 .56 .60 .59 .53 44 FTW08A 1885 1980 .71 .69 .64 .62 45 FTW23A 1738 1868 .70 .73 .79 .77 .71 46 FTW30A 1880 1980 .87 .78 .70 .68 47 FTW39A 1887 1980 .75 .77 .78 .75 PART 7: DESCRIPTIVE STATISTICS: 15:52 Mon 02 SEP 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 FTW03A 1755 1980 226 9 0 0.670 0.62 1.28 0.188 0.631 0.210 2.07 0.340 -0.023 1 2 FTW03B 1751 1980 230 9 0 0.730 0.72 1.72 0.222 0.367 0.268 2.31 0.346 -0.002 1 3 FTW04A 1778 1980 203 8 0 0.785 0.64 1.42 0.254 0.603 0.268 2.17 0.404 -0.013 1 4 FTW04B 1775 1980 206 8 0 0.786 0.71 1.82 0.282 0.536 0.281 2.00 0.303 0.027 1 5 FTW05A 1780 1919 140 5 0 0.798 0.64 1.46 0.278 0.641 0.289 2.28 0.438 -0.026 1 6 FTW05B 1785 1980 196 8 0 0.666 0.66 1.79 0.336 0.780 0.229 2.13 0.371 -0.037 1 7 FTW09A 1805 1980 176 7 0 0.719 0.55 1.26 0.197 0.594 0.227 2.17 0.383 -0.015 1 8 FTW09B 1799 1980 182 8 0 0.727 0.69 1.63 0.288 0.697 0.227 2.11 0.348 -0.033 4 9 FTW17A 1748 1980 233 10 0 0.673 0.79 4.68 0.529 0.832 0.250 2.26 0.364 -0.051 1 10 FTW17B 1761 1980 220 9 0 0.647 0.83 2.37 0.476 0.763 0.284 1.98 0.300 -0.013 1 11 FTW18A 1830 1980 151 6 0 0.844 0.87 2.09 0.388 0.587 0.302 2.12 0.362 -0.001 1 12 FTW18B 1827 1980 154 6 0 0.697 0.78 2.44 0.409 0.779 0.268 2.41 0.439 -0.007 4 13 FTW20A 1835 1980 146 6 0 0.792 0.93 2.46 0.410 0.725 0.240 1.96 0.352 -0.043 1 14 FTW20B 1835 1980 146 6 0 0.735 0.71 2.51 0.318 0.746 0.237 1.89 0.297 -0.028 1 15 FTW24A 1838 1980 143 6 0 0.747 0.64 1.48 0.240 0.673 0.237 2.05 0.369 0.013 1 16 FTW24B 1803 1980 178 7 0 0.725 0.78 2.37 0.337 0.460 0.269 2.23 0.381 0.025 1 17 FTW26A 1830 1980 151 6 0 0.686 0.93 3.02 0.515 0.717 0.298 2.21 0.414 -0.018 1 18 FTW26B 1841 1980 140 6 0 0.708 0.83 3.07 0.451 0.751 0.277 2.06 0.388 0.017 1 19 FTW33A 1840 1980 141 6 0 0.675 0.92 2.23 0.379 0.650 0.242 2.20 0.420 0.009 3 20 FTW33B 1814 1980 167 7 0 0.736 0.93 2.09 0.333 0.571 0.254 1.98 0.308 -0.046 1 21 FTW35A 1753 1980 228 9 0 0.636 0.92 1.94 0.330 0.729 0.206 2.05 0.298 -0.044 1 22 FTW35B 1752 1980 229 9 0 0.721 0.79 2.45 0.354 0.790 0.239 1.98 0.282 0.019 3 23 FTW38A 1832 1980 149 6 0 0.700 0.83 2.28 0.358 0.797 0.206 2.12 0.373 -0.063 1 24 FTW38B 1757 1980 224 9 0 0.678 0.75 2.59 0.348 0.735 0.261 2.06 0.372 0.011 5 25 FTW41A 1777 1980 204 8 0 0.698 0.78 3.28 0.439 0.709 0.288 2.14 0.384 0.003 1 26 FTW41B 1750 1980 231 9 0 0.667 0.75 3.11 0.509 0.777 0.299 2.11 0.347 0.009 1 27 FTW42A 1846 1980 135 6 0 0.692 0.81 1.91 0.391 0.748 0.279 2.00 0.352 0.010 1 28 FTW42B 1830 1980 151 6 0 0.637 0.78 2.57 0.464 0.743 0.309 2.04 0.350 -0.022 1 29 FTW43A 1760 1980 221 9 0 0.757 0.77 2.73 0.431 0.684 0.318 2.10 0.414 -0.010 1 30 FTW43B 1810 1980 171 7 0 0.782 0.75 2.23 0.406 0.610 0.320 2.41 0.437 -0.014 1 31 FTW47A 1737 1980 244 10 0 0.630 0.62 2.11 0.339 0.790 0.259 2.08 0.376 -0.020 1 32 FTW47B 1747 1980 234 10 2 0.571 0.62 2.06 0.329 0.800 0.228 2.13 0.393 -0.003 1 33 FTW01A 1771 1980 210 9 0 0.670 0.49 1.40 0.181 0.499 0.266 2.11 0.378 -0.060 1 34 FTW10A 1841 1980 140 6 0 0.734 1.22 3.07 0.489 0.460 0.331 2.17 0.460 0.019 1 35 FTW21A 1757 1980 224 9 1 0.582 0.44 1.68 0.253 0.770 0.250 2.12 0.298 -0.012 4 36 FTW25A 1737 1980 244 10 0 0.702 0.50 1.65 0.291 0.766 0.328 2.15 0.368 -0.002 1 37 FTW28A 1787 1980 194 8 0 0.764 0.61 2.67 0.373 0.710 0.285 2.28 0.451 0.020 1 38 FTW29A 1801 1980 180 7 0 0.658 0.91 4.05 0.536 0.748 0.280 2.03 0.296 -0.016 2 39 FTW31A 1801 1980 180 7 0 0.764 0.79 1.69 0.250 0.554 0.235 2.17 0.378 -0.022 1 40 FTW32A 1758 1980 223 9 0 0.674 0.48 1.30 0.204 0.649 0.273 2.11 0.406 0.004 2 41 FTW34A 1812 1980 169 7 0 0.570 0.49 1.09 0.206 0.729 0.261 1.98 0.335 0.005 1 42 FTW36A 1839 1980 142 6 0 0.672 0.72 2.30 0.375 0.649 0.268 2.25 0.363 0.013 1 43 FTW07A 1889 1980 92 4 0 0.562 1.26 3.36 0.573 0.666 0.270 2.12 0.410 -0.050 2 44 FTW08A 1885 1980 96 4 0 0.676 1.39 4.59 0.789 0.747 0.262 2.02 0.409 -0.064 2 45 FTW23A 1738 1868 131 5 0 0.720 0.78 2.70 0.464 0.832 0.234 2.33 0.358 0.004 1 46 FTW30A 1880 1980 101 4 0 0.767 1.15 2.27 0.379 0.610 0.215 1.88 0.383 -0.013 1 47 FTW39A 1887 1980 94 4 0 0.720 1.21 2.91 0.509 0.662 0.248 2.08 0.362 -0.018 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 8370 340 3 0.698 0.75 4.68 0.358 0.684 0.264 2.41 0.366 -0.012