Chronology file name : CO551.CRN Measurement file name : CO551.RWL Date checked : 29JUL96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1681 Ending year : 1987 Principal investigators: DONALD A. GRAYBILL Site name : ALTO PICNIC GROUND Site location : COLORADO, USA Species information : PIPO PONDEROSA PINE Latitude : 4003N Longitude : 10526W Elevation : 2560 M Series intercorrelation: 0.686 Avg mean sensitivity : 0.321 Avg standard deviation : 0.633 Avg autocorrelation : 0.814 Number dated series : 24 Segment length tested : 50 Number problem segments: 1 Pct problem segments : 0.51 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: ALL FLAGS = LOW CORRELATIONS WITH MASTER EXCELLENT HIGH QUALITY CHRONOLOGY PART 5: CORRELATION OF SERIES BY SEGMENTS: 22:16 Mon 29 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 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 ALO011 1771 1960 .74 .76 .78 .65 .58 .60 .72 .80 2 ALO012 1771 1977 .57 .56 .61 .52 .40 .56 .73 .77 .76 3 ALO021 1809 1987 .79 .76 .83 .74 .62 .71 .78 4 ALO022 1823 1987 .76 .70 .79 .69 .48 .63 .68 5 ALO031 1748 1987 .39 .40 .65 .72 .69 .75 .80 .67 .75 .70 6 ALO032 1763 1987 .59 .53 .46 .51 .68 .69 .60 .74 .64 7 ALO041 1810 1987 .84 .79 .81 .83 .77 .78 .80 8 ALO042 1809 1987 .88 .79 .83 .86 .88 .88 .83 9 ALO051 1789 1987 .45 .65 .74 .79 .77 .82 .83 .84 10 ALO052 1789 1987 .53 .62 .70 .74 .71 .79 .83 .84 11 ALO061 1786 1987 .71 .68 .67 .78 .77 .77 .86 .87 12 ALO062 1773 1987 .69 .69 .68 .68 .73 .75 .76 .80 .77 13 ALO071 1814 1987 .66 .68 .76 .81 .83 .84 .82 14 ALO072 1809 1987 .61 .59 .71 .76 .76 .83 .83 15 ALO081 1708 1987 .57 .64 .71 .63 .63 .65 .71 .52 .40B .50 .54 16 ALO082 1681 1987 .54 .57 .60 .57 .66 .71 .60 .35 .38 .56 .49 17 ALO091 1791 1987 .57 .69 .89 .82 .76 .77 .65 .67 18 ALO092 1791 1987 .66 .78 .81 .79 .80 .85 .75 .74 19 ALO101 1794 1987 .74 .77 .68 .62 .71 .82 .77 .80 20 ALO102 1794 1987 .80 .81 .76 .76 .79 .85 .84 .82 21 ALO111 1805 1987 .82 .79 .65 .57 .71 .86 .86 22 ALO112 1802 1987 .79 .74 .71 .65 .75 .88 .87 23 ALO121 1778 1987 .50 .55 .55 .71 .66 .58 .74 .72 24 ALO122 1778 1987 .46 .53 .68 .67 .57 .61 .77 .61 PART 7: DESCRIPTIVE STATISTICS: 22:16 Mon 29 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 ALO011 1771 1960 190 8 0 0.709 0.98 3.46 0.795 0.898 0.345 1.98 0.287 -0.030 1 2 ALO012 1771 1977 207 9 0 0.610 1.41 5.37 1.310 0.919 0.327 2.08 0.308 -0.022 1 3 ALO021 1809 1987 179 7 0 0.738 1.37 3.29 0.628 0.695 0.307 1.97 0.307 -0.011 1 4 ALO022 1823 1987 165 7 0 0.680 1.52 3.69 0.658 0.696 0.293 1.90 0.237 -0.001 1 5 ALO031 1748 1987 240 10 0 0.642 0.96 3.23 0.652 0.807 0.303 2.05 0.380 -0.006 1 6 ALO032 1763 1987 225 9 0 0.581 0.89 3.40 0.619 0.810 0.343 1.92 0.292 -0.019 1 7 ALO041 1810 1987 178 7 0 0.791 1.45 4.66 0.845 0.762 0.330 2.04 0.320 -0.039 1 8 ALO042 1809 1987 179 7 0 0.841 0.89 3.23 0.628 0.840 0.426 1.99 0.336 -0.034 1 9 ALO051 1789 1987 199 8 0 0.697 0.84 2.63 0.510 0.776 0.346 1.94 0.309 0.019 2 10 ALO052 1789 1987 199 8 0 0.702 0.88 3.18 0.628 0.831 0.340 1.90 0.266 -0.026 2 11 ALO061 1786 1987 202 8 0 0.755 1.01 3.45 0.727 0.803 0.384 2.01 0.343 -0.025 3 12 ALO062 1773 1987 215 9 0 0.715 0.75 2.06 0.516 0.801 0.424 1.81 0.309 -0.006 2 13 ALO071 1814 1987 174 7 0 0.748 0.81 1.88 0.364 0.616 0.331 2.01 0.377 -0.031 1 14 ALO072 1809 1987 179 7 0 0.702 1.22 3.84 0.638 0.661 0.370 2.03 0.353 -0.018 1 15 ALO081 1708 1987 280 11 1 0.564 0.65 2.80 0.432 0.840 0.284 2.01 0.309 -0.032 4 16 ALO082 1681 1987 307 11 0 0.526 0.74 3.70 0.596 0.845 0.316 1.82 0.287 -0.024 4 17 ALO091 1791 1987 197 8 0 0.699 1.03 3.51 0.617 0.843 0.303 1.87 0.298 -0.024 1 18 ALO092 1791 1987 197 8 0 0.759 0.90 2.88 0.524 0.823 0.280 1.85 0.260 -0.034 1 19 ALO101 1794 1987 194 8 0 0.722 1.38 3.62 0.767 0.824 0.261 2.05 0.329 -0.054 1 20 ALO102 1794 1987 194 8 0 0.797 0.75 2.66 0.592 0.895 0.296 1.96 0.317 -0.055 1 21 ALO111 1805 1987 183 7 0 0.739 0.99 2.73 0.517 0.819 0.267 1.90 0.309 0.006 1 22 ALO112 1802 1987 186 7 0 0.761 1.21 3.10 0.662 0.833 0.260 1.89 0.314 0.002 2 23 ALO121 1778 1987 210 8 0 0.608 0.66 2.99 0.522 0.893 0.302 1.98 0.366 0.028 1 24 ALO122 1778 1987 210 8 0 0.580 0.63 2.75 0.527 0.910 0.287 1.94 0.324 0.013 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4889 195 1 0.686 0.98 5.37 0.633 0.814 0.321 2.08 0.314 -0.018