NOTE: All statistics reported below describe the raw measurement file, not the chronology itself. This file should be viewed with a non-proportional font. Chronology file name : VA007.CRN Measurement file name : VA007.RWL Date checked : 09DEC94 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1742 Ending year : 1977 Principal investigators: LARRY J. PUCKETT AND RICHARD L. PHIPPS Site name : BURLING TRACT Site location : VIRGINIA, USA Species information : TSCA EASTERN HEMLOCK Latitude : 3858N Longitude : 7712W Elevation : 30 M Series intercorrelation: 0.649 Avg mean sensitivity : 0.222 Avg standard deviation : 0.491 Avg autocorrelation : 0.792 Number dated series : 26 Segment length tested : 50 Number problem segments: 11 Pct problem segments : 6.43 Are there obvious misdated series? YES Number possible misdated series : 2 Percent misdated series : 7.69 Comments: #10 010172 1875-1924 HAS LOW CORRELATION #25 010381 1830-1949, #26 010382 1800-1949 ARE MISDATED AND SHOULD BE DELETED. STILL A GOOD CHRONOLOGY 1 PART 5: CORRELATION BY SEGMENTS OF SERIES: 13:16 Fri 09 DEC 1994 Page 2 ----------------------------------------------------------------------------------------------------------------------------------- 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 Interval 1775 1800 1825 1850 1875 1900 1925 1950 1824 1849 1874 1899 1924 1949 1974 1999 1 010101 1874 1977 - - - .50 .50 .65 .68 .66 - - - - - - - - - - - - + 2 010102 1860 1977 - - - .69 .79 .74 .74 .73 - - - - - - - - - - - - + 3 010111 1802 1977 - .69 .64 .79 .83 .78 .76 .76 - - - - - - - - - - - - + 4 010112 1796 1977 .75 .77 .59 .64 .78 .79 .76 .75 - - - - - - - - - - - - + 5 010141 1800 1977 - .71 .76 .72 .65 .75 .81 .81 - - - - - - - - - - - - + 6 010142 1800 1977 - .63 .67 .70 .72 .48 .51 .47 - - - - - - - - - - - - + 7 010151 1786 1977 .63 .61 .70 .68 .67 .72 .65 .61 - - - - - - - - - - - - + 8 010152 1790 1977 .85 .78 .75 .71 .70 .70 .75 .77 - - - - - - - - - - - - + 9 010171 1843 1977 - - .37 .48 .26 .44 .68 .66 - - - - - - - - - - - - + ___B 10 010172 1865 1977 - - - .48 .19 .40 .70 .70 - - - - - - - - - - - - + ___B 11 010191 1796 1977 .86 .85 .82 .82 .82 .88 .85 .84 - - - - - - - - - - - - + 12 010192 1800 1977 - .46 .58 .58 .72 .79 .73 .72 - - - - - - - - - - - - + 13 010311 1841 1977 - - .51 .48 .58 .76 .79 .79 - - - - - - - - - - - - + 14 010312 1855 1977 - - - .54 .45 .62 .74 .73 - - - - - - - - - - - - + 15 010321 1807 1977 - .71 .62 .78 .74 .69 .78 .76 - - - - - - - - - - - - + 16 010322 1742 1977 .61 .60 .59 .74 .75 .80 .82 .80 - - - - - - - - - - - - + 17 010331 1811 1977 - .72 .60 .63 .75 .72 .80 .83 - - - - - - - - - - - - + 18 010332 1808 1977 - .64 .60 .54 .62 .67 .67 .64 - - - - - - - - - - - - + 19 010341 1820 1977 - .65 .63 .58 .63 .83 .83 .83 - - - - - - - - - - - - + 20 010342 1849 1977 - - .72 .73 .76 .86 .87 .85 - - - - - - - - - - - - + 21 010351 1810 1977 - .58 .52 .74 .77 .84 .80 .80 - - - - - - - - - - - - + 22 010352 1849 1977 - - .72 .72 .76 .74 .76 .76 - - - - - - - - - - - - + 23 010371 1864 1977 - - - .62 .67 .61 .70 .66 - - - - - - - - - - - - + 24 010372 1840 1977 - - .66 .61 .54 .65 .76 .78 - - - - - - - - - - - - + 25 010381 1830 1977 - - -.06 -.15 -.11 .38 .72 .75 - - - - - - - - - - - - + ___B ___B ___B ___B 26 010382 1800 1977 - .10 .06 -.23 -.01 .18 .36 .44 - - - - - - - - - - - - + ___B ___B ___B ___B ___B 1 PART 7: DESCRIPTIVE STATISTICS: 13:16 Fri 09 DEC 1994 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- 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 010101 1874 1977 104 5 0 0.610 1.75 4.41 0.663 0.655 0.248 2.25 0.415 -0.045 4 2 010102 1860 1977 118 5 0 0.726 1.18 3.17 0.522 0.718 0.245 1.92 0.299 -0.052 1 3 010111 1802 1977 176 7 0 0.741 0.76 1.92 0.305 0.675 0.252 1.85 0.234 -0.008 1 4 010112 1796 1977 182 8 0 0.714 0.72 2.93 0.395 0.757 0.290 1.98 0.263 -0.023 1 5 010141 1800 1977 178 7 0 0.724 0.85 3.44 0.584 0.879 0.261 1.98 0.342 -0.038 1 6 010142 1800 1977 178 7 0 0.593 0.68 3.55 0.515 0.861 0.266 2.12 0.291 -0.023 1 7 010151 1786 1977 192 8 0 0.630 0.73 3.14 0.478 0.929 0.183 1.99 0.395 -0.017 1 8 010152 1790 1977 188 8 0 0.748 0.62 2.33 0.370 0.866 0.212 1.93 0.294 -0.018 1 9 010171 1843 1977 135 6 1 0.492 1.87 4.48 0.933 0.781 0.248 1.97 0.315 -0.054 1 10 010172 1865 1977 113 5 1 0.523 2.54 5.84 1.237 0.706 0.274 2.11 0.427 0.000 1 11 010191 1796 1977 182 8 0 0.839 0.93 2.69 0.476 0.882 0.184 1.90 0.255 0.017 1 12 010192 1800 1977 178 7 0 0.604 0.86 2.50 0.313 0.795 0.180 1.97 0.336 -0.005 4 13 010311 1841 1977 137 6 0 0.681 1.42 2.76 0.552 0.770 0.204 2.08 0.388 -0.013 2 14 010312 1855 1977 123 5 0 0.671 1.66 3.41 0.648 0.766 0.218 2.23 0.378 -0.031 3 15 010321 1807 1977 171 7 0 0.736 0.95 2.14 0.314 0.764 0.199 2.02 0.406 -0.008 1 16 010322 1742 1977 236 8 0 0.690 0.87 1.63 0.270 0.767 0.180 1.98 0.348 -0.036 1 17 010331 1811 1977 167 7 0 0.743 0.93 2.33 0.404 0.856 0.174 1.91 0.285 -0.016 1 18 010332 1808 1977 170 7 0 0.624 0.91 3.29 0.494 0.848 0.215 2.17 0.357 -0.026 4 19 010341 1820 1977 158 7 0 0.714 0.86 2.21 0.350 0.739 0.219 2.03 0.278 -0.014 1 20 010342 1849 1977 129 6 0 0.816 0.92 2.68 0.381 0.742 0.218 1.87 0.249 -0.057 1 21 010351 1810 1977 168 7 0 0.725 1.42 2.83 0.514 0.763 0.198 2.14 0.404 0.018 1 22 010352 1849 1977 129 6 0 0.767 1.46 4.26 0.580 0.750 0.215 2.23 0.385 -0.033 1 23 010371 1864 1977 114 5 0 0.661 1.46 3.82 0.730 0.753 0.265 2.03 0.383 -0.062 1 24 010372 1840 1977 138 6 0 0.692 0.85 2.64 0.448 0.763 0.264 2.13 0.377 -0.001 1 25 010381 1830 1977 148 6 4 0.250 0.87 3.49 0.567 0.913 0.200 1.96 0.365 -0.050 1 26 010382 1800 1977 178 7 5 0.137 0.96 2.14 0.376 0.723 0.226 2.21 0.407 0.038 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4090 171 11 0.649 1.06 5.84 0.491 0.792 0.222 2.25 0.338 -0.020