Chronology file name : NONE Measurement file name : CO552.RWL Date checked : 11MAR96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1626 Ending year : 1983 Principal investigators: K. BRIFFA AND F.H. SCHWEINGRUBER Site name : RED MOUNTAIN PASS (SILVERTON) Site location : COLORADO, USA Species information : PCEN ENGELMANN SPRUCE Latitude : 3754N Longitude : 10743W Elevation : 3400 M Series intercorrelation: 0.512 Avg mean sensitivity : 0.158 Avg standard deviation : 0.389 Avg autocorrelation : 0.825 Number dated series : 26 Segment length tested : 50 Number problem segments: 32 Pct problem segments : 14.55 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: MANY SERIES HAVE LOW CORRELATIONS 1900-1924 #9 754051 1730-1824 HAS LOW CORRELATION SOME INNER RING SEGMENTS WITH LOW CORRELATIONS STILL A VERY GOOD DATA SET PART 5: CORRELATION OF SERIES BY SEGMENTS: 11:09 Mon 11 MAR 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 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 754011 1899 1983 .24A .18B .41 .44 2 754012 1875 1983 .17B .11B .33 .47 3 754021 1702 1983 .34 .14B .17B .56 .55 .42 .52 .42 .25B .45 .48 4 754022 1694 1983 .17B .24B .35 .29A .43 .51 .47 .47 .27B .03B .41 .41 5 754031 1816 1983 .55 .58 .57 .53 .28B .45 .69 6 754032 1825 1983 .64 .63 .57 .50 .60 .70 7 754041 1792 1983 .40 .40 .41 .66 .57 .42 .44 .54 8 754042 1802 1983 .65 .59 .65 .60 .29A .39 .46 9 754051 1730 1983 .05B .13B .30B .40 .61 .70 .64 .49 .51 .57 10 754052 1775 1983 .47B .56 .56 .62 .61 .52 .61 .57 11 754061 1793 1983 .46 .48 .64 .72 .71 .44 .62 .71 12 754062 1774 1983 .26A .22B .42 .61 .62 .54 .26B .61 .75 13 754071 1711 1983 .64 .71 .67 .70 .70 .66 .59 .56 .59 .51 .59 14 754072 1626 1983 .01B .14B .58 .67 .63 .80 .69 .66 .69 .64 .65 .49 .51 15 754081 1863 1983 .73 .62 .49 .55 .66 16 754082 1818 1983 .57 .61 .68 .64 .45 .64 .72 17 754091 1668 1979 .52 .51 .55 .56 .49 .37 .50 .45 .47 .54 .52 .38 .40 18 754092 1669 1961 .39 .44 .51 .57 .56 .64 .59 .61 .72 .62 .44 .46 19 754101 1759 1983 .55 .58 .50 .44 .61 .70 .53 .61 .63 20 754102 1741 1983 .50 .50 .56 .50 .67 .79 .61 .29A .31A .39 21 754111 1781 1983 .40 .60 .73 .66 .51 .35B .56 .60 22 754112 1799 1983 .66 .66 .81 .73 .52 .43 .44 .55 23 754121 1793 1983 .58 .55 .67 .61 .44 .28B .45 .56 24 754122 1777 1983 .38 .53 .68 .70 .38 .30B .52 .56 25 754131 1823 1983 .31A .28A .39 .61 .39 .45 .44 26 754132 1806 1983 .23B .28A .45 .71 .70 .72 .74 PART 7: DESCRIPTIVE STATISTICS: 11:09 Mon 11 MAR 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 754011 1899 1983 85 4 2 0.345 2.00 3.50 0.563 0.776 0.139 2.01 0.388 -0.008 1 2 754012 1875 1983 109 4 2 0.318 1.80 2.97 0.703 0.910 0.127 1.76 0.330 0.017 2 3 754021 1702 1983 282 11 3 0.402 0.97 2.23 0.461 0.910 0.161 2.00 0.324 0.010 1 4 754022 1694 1983 290 12 5 0.334 1.17 2.22 0.466 0.915 0.126 1.94 0.310 0.025 2 5 754031 1816 1983 168 7 1 0.527 1.46 2.93 0.344 0.523 0.176 1.99 0.298 -0.036 1 6 754032 1825 1983 159 6 0 0.619 1.52 2.33 0.335 0.484 0.180 2.06 0.364 -0.040 1 7 754041 1792 1983 192 8 0 0.483 0.99 3.42 0.628 0.931 0.148 1.89 0.222 -0.026 3 8 754042 1802 1983 182 7 1 0.537 1.01 2.95 0.535 0.912 0.130 2.11 0.386 -0.032 1 9 754051 1730 1983 254 10 3 0.434 0.81 1.66 0.342 0.894 0.166 2.05 0.365 0.014 1 10 754052 1775 1983 209 8 1 0.552 1.05 1.72 0.272 0.766 0.135 2.03 0.340 -0.032 3 11 754061 1793 1983 191 8 0 0.608 1.10 2.08 0.334 0.825 0.139 1.93 0.305 0.010 1 12 754062 1774 1983 210 9 3 0.540 0.96 2.04 0.467 0.923 0.142 1.82 0.228 -0.039 1 13 754071 1711 1983 273 11 0 0.627 0.72 1.53 0.308 0.902 0.155 1.93 0.300 0.013 1 14 754072 1626 1983 358 13 2 0.496 0.57 1.54 0.314 0.945 0.154 1.96 0.363 0.001 1 15 754081 1863 1983 121 5 0 0.621 0.75 1.48 0.201 0.630 0.182 1.97 0.382 -0.013 1 16 754082 1818 1983 166 7 0 0.615 0.77 1.32 0.200 0.650 0.186 1.94 0.381 -0.014 1 17 754091 1668 1979 312 13 0 0.471 0.67 2.05 0.447 0.929 0.210 1.98 0.293 -0.016 1 18 754092 1669 1961 293 12 0 0.554 0.65 1.59 0.445 0.942 0.197 2.03 0.310 0.007 1 19 754101 1759 1983 225 9 0 0.562 1.05 1.98 0.408 0.898 0.145 2.16 0.332 -0.015 1 20 754102 1741 1983 243 10 2 0.547 1.15 1.94 0.272 0.718 0.137 1.99 0.281 0.005 1 21 754111 1781 1983 203 8 1 0.566 0.82 2.18 0.375 0.841 0.193 2.21 0.390 0.035 1 22 754112 1799 1983 185 8 0 0.596 1.09 2.79 0.600 0.890 0.200 2.23 0.381 0.033 1 23 754121 1793 1983 191 8 1 0.527 1.34 2.60 0.430 0.822 0.143 2.04 0.357 0.029 1 24 754122 1777 1983 207 8 1 0.511 1.16 2.10 0.311 0.780 0.142 1.95 0.311 -0.026 2 25 754131 1823 1983 161 7 2 0.429 1.41 2.21 0.280 0.635 0.133 2.01 0.341 0.012 1 26 754132 1806 1983 178 7 2 0.473 1.20 1.95 0.200 0.510 0.129 2.08 0.437 -0.003 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 5447 220 32 0.512 1.01 3.50 0.389 0.825 0.158 2.23 0.331 -0.002