Chronology file name : NC5.CRN Measurement file name : NC5.RWL Date checked : 04AUG96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1713 Ending year : 1993 Principal investigators: A.C. BAREFOOT, W.L. HAFLEY Site name : BLUFF MOUNTAIN, NATURE CONSERVANCY Site location : NORTH CAROLINA, USA Species information : TSCR HEMLOCK Latitude : 3624N Longitude : 8133W Elevation : 1259 M Series intercorrelation: 0.599 Avg mean sensitivity : 0.246 Avg standard deviation : 0.427 Avg autocorrelation : 0.739 Number dated series : 35 Segment length tested : 50 Number problem segments: 16 Pct problem segments : 8.25 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: #23 BMCH15-1 1812-1899 HAS LOW CORRELATION ALL FLAGS = LOW CORRELATIONS WITH MASTER PART 5: CORRELATION OF SERIES BY SEGMENTS: 20:56 Sun 04 AUG 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 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 BMCH01-1 1861 1993 .55 .71 .60 .64 .68 2 BMCH01-2 1854 1993 .52 .66 .58 .68 .77 3 BMCH02-1 1868 1993 .57 .72 .68 .67 .70 4 BMCH02-2 1925 1993 .71 .72 5 BMCH03-1 1914 1993 .52 .58 .51 6 BMCH03-2 1923 1993 .55 .49 .57 7 BMCH04-1 1879 1993 .49 .66 .78 .72 8 BMCH04-2 1842 1993 .43 .50 .63 .72 .85 .84 9 BMCH07-1 1784 1993 .54 .65 .71 .70 .59 .59 .72 .74 10 BMCH07-2 1781 1993 .40 .43 .49 .44 .47 .58 .65 .43 11 BMCH08-1 1773 1993 -.01B .01B .32A .60 .59 .63 .75 .72 .55 12 BMCH08-2 1713 1993 .99 .90 .51 .29A .58 .54 .58 .52 .37 .53 .19B 13 BMCH09-1 1767 1993 .31A .21B .47 .69 .79 .79 .78 .68 .67 14 BMCH09-2 1774 1993 -.15B-.15B .49 .67 .70 .68 .66 .53 .53 15 BMCH10-1 1884 1993 .49 .64 .54 .59 16 BMCH10-2 1880 1993 .71 .69 .62 .54 17 BMCH11-1 1877 1993 .71 .62 .66 .76 18 BMCH11-2 1875 1993 .71 .68 .63 .64 19 BMCH13-1 1874 1993 .73 .73 .70 .64 .56 20 BMCH13-2 1869 1993 .64 .65 .77 .69 .48 21 BMCH14-1 1878 1993 .62 .70 .69 .61 22 BMCH14-2 1855 1993 .44 .61 .65 .70 .67 23 BMCH15-1 1812 1993 .19B .27B .21B .45 .59 .54 .50 24 BMCH15-2 1858 1993 .53 .60 .49 .39B .44 25 BMCH16-1 1857 1993 .66 .72 .74 .69 .64 26 BMCH16-2 1857 1993 .64 .59 .68 .61 .62 27 BMCH17-1 1882 1993 .60 .72 .75 .60 28 BMCH17-2 1867 1993 .58 .54 .69 .71 .64 29 BMCH18-1 1860 1993 .52 .47 .65 .73 .63 30 BMCH18-2 1889 1993 .72 .77 .60 .53 31 BMCH19-1 1870 1993 .60 .60 .72 .76 .61 32 BMCH19-2 1840 1993 .54 .59 .68 .72 .60 .52 33 BMCH21-1 1853 1993 .30B .32A .22B .41 .73 34 BMCH21-2 1854 1993 .66 .66 .57 .51 .42 35 BMCHAVE 1713 1993 .99 .95 .90 .92 .92 .92 .93 .97 .98 .99 .99 PART 7: DESCRIPTIVE STATISTICS: 20:56 Sun 04 AUG 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 BMCH01-1 1861 1993 133 5 0 0.600 0.95 2.75 0.419 0.741 0.243 2.16 0.317 -0.006 1 2 BMCH01-2 1854 1993 140 5 0 0.619 1.12 2.66 0.430 0.705 0.252 2.07 0.366 -0.069 1 3 BMCH02-1 1868 1993 126 5 0 0.624 0.99 2.54 0.411 0.577 0.270 2.03 0.293 0.001 2 4 BMCH02-2 1925 1993 69 2 0 0.694 1.05 2.42 0.414 0.482 0.287 2.25 0.412 -0.048 2 5 BMCH03-1 1914 1993 80 3 0 0.536 1.57 3.50 0.669 0.702 0.280 2.08 0.379 0.047 1 6 BMCH03-2 1923 1993 71 3 0 0.513 1.74 3.79 0.831 0.762 0.270 2.16 0.506 0.075 1 7 BMCH04-1 1879 1993 115 4 0 0.629 1.35 3.55 0.532 0.606 0.237 1.96 0.232 -0.052 1 8 BMCH04-2 1842 1993 152 6 0 0.639 0.98 2.09 0.410 0.722 0.246 2.06 0.317 -0.033 1 9 BMCH07-1 1784 1993 210 8 0 0.648 0.63 1.72 0.260 0.778 0.221 2.09 0.297 -0.077 1 10 BMCH07-2 1781 1993 213 8 0 0.483 0.79 2.20 0.400 0.753 0.291 2.05 0.321 -0.021 1 11 BMCH08-1 1773 1993 221 9 3 0.513 0.56 1.27 0.183 0.693 0.206 2.01 0.323 -0.028 1 12 BMCH08-2 1713 1993 281 11 2 0.524 0.61 1.70 0.333 0.805 0.289 2.11 0.336 -0.004 2 13 BMCH09-1 1767 1993 227 9 2 0.631 0.69 2.16 0.323 0.791 0.240 2.13 0.329 -0.019 2 14 BMCH09-2 1774 1993 220 9 2 0.477 0.60 2.01 0.282 0.811 0.229 1.97 0.286 -0.030 1 15 BMCH10-1 1884 1993 110 4 0 0.551 1.02 2.56 0.484 0.687 0.285 2.02 0.353 -0.023 4 16 BMCH10-2 1880 1993 114 4 0 0.613 1.11 3.19 0.543 0.699 0.282 1.93 0.299 -0.040 4 17 BMCH11-1 1877 1993 117 4 0 0.697 1.41 3.13 0.573 0.652 0.271 2.24 0.418 -0.039 2 18 BMCH11-2 1875 1993 119 4 0 0.680 1.09 2.45 0.445 0.644 0.290 2.10 0.368 -0.006 2 19 BMCH13-1 1874 1993 120 5 0 0.645 0.86 2.38 0.409 0.762 0.237 2.14 0.370 -0.082 1 20 BMCH13-2 1869 1993 125 5 0 0.605 0.70 2.02 0.414 0.833 0.280 2.07 0.391 -0.079 1 21 BMCH14-1 1878 1993 116 4 0 0.638 1.30 3.42 0.497 0.603 0.246 2.18 0.383 -0.062 1 22 BMCH14-2 1855 1993 139 5 0 0.583 1.03 2.41 0.436 0.701 0.256 2.09 0.407 -0.036 1 23 BMCH15-1 1812 1993 182 7 3 0.380 1.45 3.22 0.643 0.875 0.195 2.03 0.343 0.037 1 24 BMCH15-2 1858 1993 136 5 1 0.487 1.26 2.71 0.602 0.906 0.165 2.08 0.411 -0.038 3 25 BMCH16-1 1857 1993 137 5 0 0.679 0.73 1.72 0.339 0.739 0.250 2.16 0.376 -0.064 1 26 BMCH16-2 1857 1993 137 5 0 0.638 0.85 2.66 0.428 0.791 0.250 2.15 0.382 -0.090 1 27 BMCH17-1 1882 1993 112 4 0 0.634 0.98 1.96 0.420 0.725 0.223 2.20 0.427 -0.008 1 28 BMCH17-2 1867 1993 127 5 0 0.660 1.09 2.17 0.374 0.642 0.229 2.10 0.364 -0.028 1 29 BMCH18-1 1860 1993 134 5 0 0.588 1.15 2.33 0.422 0.741 0.206 2.04 0.342 -0.064 1 30 BMCH18-2 1889 1993 105 4 0 0.621 1.40 3.85 0.688 0.672 0.298 2.41 0.483 -0.111 1 31 BMCH19-1 1870 1993 124 5 0 0.631 0.98 2.08 0.333 0.614 0.224 2.23 0.405 -0.079 1 32 BMCH19-2 1840 1993 154 6 0 0.600 1.05 2.45 0.404 0.732 0.218 2.12 0.383 -0.007 2 33 BMCH21-1 1853 1993 141 5 3 0.395 1.00 2.55 0.590 0.769 0.308 2.24 0.371 -0.049 1 34 BMCH21-2 1854 1993 140 5 0 0.556 1.02 3.51 0.670 0.869 0.276 2.18 0.366 -0.023 1 35 BMCHAVE 1713 1993 281 11 0 0.929 0.89 1.75 0.308 0.791 0.196 2.13 0.352 -0.044 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 5128 194 16 0.599 0.97 3.85 0.427 0.739 0.246 2.41 0.355 -0.034