Chronology file name : CA547.CRN Measurement file name : CA547.RWL Date checked : 17JUL96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1684 Ending year : 1988 Principal investigators: DAVID L. PETERSON Site name : SAN BERNARDINO MOUNTAINS Site location : CALIFORNIA, USA Species information : PSME BIGCONE DOUGLAS-FIR Latitude : 3410N Longitude : 11703W Elevation : 1400 M Series intercorrelation: 0.661 Avg mean sensitivity : 0.359 Avg standard deviation : 0.479 Avg autocorrelation : 0.695 Number dated series : 20 Segment length tested : 50 Number problem segments: 15 Pct problem segments : 10.87 Are there obvious misdated series? YES Number possible misdated series : 3 Percent misdated series : 15.00 Do they affect chronology quality? N/A Recommend withhold from ITRDB? N/A Comments: #1 BC2701A 1786-1849 HAS LOW CORRELATION #2 BC2702B BELONGS ELSEWHERE #3 BC2703B 1783-1849, #7 BC2702B 1796-1849 ARE MISDATED DATA SET COULD BE IMPROVED PART 5: CORRELATION OF SERIES BY SEGMENTS: 23:24 Wed 17 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 BC2701A 1786 1988 -.20B-.05B .41 .53 .62 .55 .53 .49 2 BC2702B 1796 1988 -.20B-.17B .13B .32A .23A-.11B .30A .34 3 BC2703B 1783 1988 .10B .32B .53 .65 .65 .59 .50 .53 4 BC2704A 1799 1988 .78 .78 .71 .64 .51 .55 .66 .67 5 BC2705B 1684 1988 .43 .76 .74 .81 .77 .69 .62 .52 6 BC2706B 1798 1988 .64 .63 .78 .65 .60 .74 .29A .35 7 BC2707B 1796 1988 .03B .02B .40 .43 .34 .74 .73 .72 8 BC2708B 1871 1988 .85 .86 .73 .82 .82 9 BC2709A 1847 1988 .84 .85 .78 .67 .80 .83 10 BC2710B 1844 1988 .91 .92 .89 .74 .81 .86 11 BC2711B 1843 1988 .93 .93 .85 .64 .77 .78 12 BC2712A 1886 1988 .66 .57 .74 .81 13 BC2713B 1848 1988 .82 .85 .88 .65 .75 .75 14 BC2714A 1820 1988 .80 .84 .90 .92 .85 .84 .88 15 BC2715A 1801 1988 .79 .87 .89 .90 .79 .80 .81 16 BC2716B 1806 1988 .81 .86 .92 .81 .54 .75 .83 17 BC2717B 1800 1988 .82 .85 .88 .67 .30B .57 .71 18 BC2718B 1825 1988 .77 .88 .78 .66 .75 .80 19 BC2719A 1799 1988 .83 .83 .84 .89 .87 .76 .77 .43 20 BC2720A 1803 1988 .84 .66 .78 .83 .52 .60 .71 PART 7: DESCRIPTIVE STATISTICS: 23:24 Wed 17 JUL 1996 Page 7 ----------------------------------------------------------------------------------------------------------------------------------- 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 BC2701A 1786 1988 203 8 2 0.392 0.91 3.86 0.719 0.869 0.393 1.90 0.243 -0.019 1 2 BC2702B 1796 1988 193 8 7 0.170 0.95 3.81 0.618 0.892 0.283 1.81 0.230 -0.022 1 3 BC2703B 1783 1988 206 8 2 0.505 0.60 1.60 0.310 0.628 0.426 2.16 0.307 -0.016 1 4 BC2704A 1799 1988 190 8 0 0.640 0.94 2.58 0.385 0.696 0.278 1.84 0.247 -0.017 1 5 BC2705B 1684 1988 305 8 0 0.629 0.59 2.16 0.345 0.812 0.336 1.91 0.278 -0.019 2 6 BC2706B 1798 1988 191 8 1 0.522 0.49 1.27 0.218 0.677 0.319 1.77 0.210 -0.028 1 7 BC2707B 1796 1988 193 8 2 0.480 0.42 1.87 0.277 0.805 0.304 2.11 0.317 -0.012 1 8 BC2708B 1871 1988 118 5 0 0.830 1.24 2.51 0.569 0.708 0.361 1.88 0.268 -0.051 1 9 BC2709A 1847 1988 142 6 0 0.797 1.35 3.86 0.724 0.521 0.450 2.04 0.355 -0.016 2 10 BC2710B 1844 1988 145 6 0 0.854 0.97 2.60 0.495 0.427 0.495 2.07 0.356 -0.047 1 11 BC2711B 1843 1988 146 6 0 0.813 0.96 3.09 0.531 0.701 0.408 1.96 0.343 -0.035 1 12 BC2712A 1886 1988 103 4 0 0.729 1.24 2.81 0.513 0.551 0.328 2.08 0.410 -0.044 1 13 BC2713B 1848 1988 141 6 0 0.779 1.41 3.67 0.640 0.644 0.340 1.89 0.283 -0.055 1 14 BC2714A 1820 1988 169 7 0 0.858 1.15 3.57 0.735 0.742 0.386 2.15 0.328 -0.019 1 15 BC2715A 1801 1988 188 7 0 0.835 1.36 4.49 0.932 0.850 0.338 2.05 0.272 -0.034 1 16 BC2716B 1806 1988 183 7 0 0.809 0.77 2.68 0.388 0.524 0.380 1.87 0.278 -0.033 2 17 BC2717B 1800 1988 189 7 1 0.677 0.73 3.42 0.525 0.779 0.377 2.15 0.286 -0.003 1 18 BC2718B 1825 1988 164 6 0 0.772 1.04 2.44 0.415 0.573 0.297 2.25 0.365 -0.034 1 19 BC2719A 1799 1988 190 8 0 0.731 0.34 1.86 0.215 0.503 0.452 2.01 0.306 -0.068 1 20 BC2720A 1803 1988 186 7 0 0.727 0.54 1.91 0.284 0.715 0.287 1.89 0.251 -0.063 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3545 138 15 0.661 0.86 4.49 0.479 0.695 0.359 2.25 0.291 -0.030