Chronology file name : NONE Measurement file name : AK013.RWL Date checked : 12JAN96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1769 Ending year : 1983 Principal investigators: F. H. SCHWEINGRUBER Site name : WILLOW ISLAND Site location : ALASKA, USA Species information : PCGL WHITE SPRUCE Latitude : 6450N Longitude : 14810W Elevation : 99 M Series intercorrelation: 0.652 Avg mean sensitivity : 0.196 Avg standard deviation : 0.537 Avg autocorrelation : 0.868 Number dated series : 28 Segment length tested : 50 Number problem segments: 1 Pct problem segments : 0.54 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: EXCELLENT HIGH QUALITY DATA SET PART 5: CORRELATION OF SERIES BY SEGMENTS: 14:03 Fri 12 JAN 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 759011 1829 1983 .62 .60 .67 .66 .71 .74 2 759012 1799 1983 .61 .61 .49 .52 .70 .71 .80 .84 3 759021 1818 1983 .43 .42 .70 .77 .62 .66 .73 4 759022 1814 1983 .42 .35 .55 .75 .75 .83 .86 5 759031 1833 1983 .51 .51 .58 .62 .75 .79 6 759032 1810 1983 .63 .59 .54 .50 .57 .76 .82 7 759041 1856 1983 .81 .83 .77 .71 .76 8 759042 1863 1981 .76 .82 .82 .39 .34 9 759051 1804 1976 .38 .58 .51 .64 .70 .53 .53 10 759052 1791 1981 .63 .63 .52 .47 .64 .74 .47 .45 11 759061 1834 1983 .64 .47 .35 .53 .73 .77 12 759062 1827 1983 .62 .42 .35 .55 .64 .68 13 759071 1870 1983 .36 .44 .63 .78 .81 14 759072 1845 1983 .45 .50 .64 .54 .65 .63 15 759081 1823 1983 .57 .55 .47 .51 .66 .72 .71 16 759082 1823 1983 .59 .66 .57 .53 .66 .73 .80 17 759091 1824 1983 .74 .73 .77 .84 .78 .82 .85 18 759092 1770 1983 .49 .56 .69 .67 .71 .77 .73 .77 .87 19 759101 1853 1983 .69 .76 .81 .70 .73 20 759102 1833 1983 .59 .69 .76 .87 .88 .89 21 759111 1811 1983 .56 .57 .52 .61 .72 .77 .77 22 759112 1825 1983 .52 .61 .68 .73 .75 .73 23 759121 1815 1983 .71 .70 .76 .77 .73 .70 .72 24 759122 1769 1983 .41 .47 .64 .77 .64 .66 .77 .80 .80 25 759131 1828 1983 .29A .37 .70 .75 .75 .74 26 759132 1828 1983 .54 .57 .70 .78 .70 .71 27 759141 1779 1983 .69 .73 .65 .64 .73 .77 .74 .74 28 759142 1802 1971 .52 .62 .61 .64 .75 .76 PART 7: DESCRIPTIVE STATISTICS: 14:03 Fri 12 JAN 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 759011 1829 1983 155 6 0 0.668 0.94 2.56 0.425 0.849 0.182 1.91 0.313 0.048 1 2 759012 1799 1983 185 8 0 0.669 1.04 3.67 0.506 0.836 0.194 2.38 0.350 -0.036 1 3 759021 1818 1983 166 7 0 0.630 0.93 2.59 0.358 0.766 0.186 2.07 0.320 0.018 1 4 759022 1814 1983 170 7 0 0.681 0.84 2.02 0.340 0.802 0.194 1.99 0.343 0.009 1 5 759031 1833 1983 151 6 0 0.659 0.81 2.04 0.440 0.867 0.219 1.90 0.324 0.018 2 6 759032 1810 1983 174 7 0 0.665 0.97 2.47 0.539 0.898 0.201 1.86 0.264 0.036 1 7 759041 1856 1983 128 5 0 0.754 0.83 1.37 0.235 0.686 0.182 1.91 0.379 0.025 1 8 759042 1863 1981 119 5 0 0.581 1.17 2.60 0.536 0.795 0.214 2.05 0.351 0.015 1 9 759051 1804 1976 173 7 0 0.519 0.91 3.62 0.852 0.952 0.198 2.01 0.316 -0.003 3 10 759052 1791 1981 191 8 0 0.550 0.67 2.14 0.427 0.917 0.196 2.13 0.340 -0.025 3 11 759061 1834 1983 150 6 0 0.585 1.30 3.91 1.160 0.956 0.201 1.92 0.325 -0.021 1 12 759062 1827 1983 157 6 0 0.555 1.15 3.26 0.998 0.955 0.198 2.14 0.311 0.008 2 13 759071 1870 1983 114 5 0 0.623 1.33 3.22 0.782 0.856 0.254 1.98 0.339 0.010 1 14 759072 1845 1983 139 6 0 0.558 0.70 1.41 0.281 0.853 0.187 2.02 0.335 0.012 2 15 759081 1823 1983 161 7 0 0.600 0.92 4.00 0.713 0.841 0.243 2.05 0.338 -0.027 1 16 759082 1823 1983 161 7 0 0.641 1.01 3.30 0.766 0.897 0.238 1.96 0.362 0.011 1 17 759091 1824 1983 160 7 0 0.806 0.70 1.52 0.327 0.898 0.173 1.89 0.309 -0.027 1 18 759092 1770 1983 214 9 0 0.689 0.81 2.04 0.421 0.913 0.172 2.02 0.326 -0.023 3 19 759101 1853 1983 131 5 0 0.738 0.65 1.50 0.244 0.702 0.224 1.99 0.304 -0.045 1 20 759102 1833 1983 151 6 0 0.775 0.68 1.90 0.304 0.850 0.199 2.09 0.404 -0.015 1 21 759111 1811 1983 173 7 0 0.654 0.70 2.50 0.526 0.929 0.196 2.07 0.316 -0.043 1 22 759112 1825 1983 159 6 0 0.652 0.73 2.33 0.422 0.893 0.184 2.07 0.435 -0.034 1 23 759121 1815 1983 169 7 0 0.728 1.04 3.25 0.683 0.924 0.183 1.99 0.404 0.010 1 24 759122 1769 1983 215 9 0 0.660 1.04 3.63 0.792 0.940 0.184 2.00 0.348 0.015 1 25 759131 1828 1983 156 6 1 0.593 1.56 3.08 0.475 0.798 0.149 1.89 0.279 -0.023 1 26 759132 1828 1983 156 6 0 0.672 1.55 2.96 0.546 0.791 0.167 2.14 0.326 0.020 1 27 759141 1779 1983 205 8 0 0.692 0.80 2.14 0.470 0.906 0.216 1.99 0.330 -0.075 1 28 759142 1802 1971 170 6 0 0.657 0.75 1.85 0.395 0.876 0.195 2.06 0.384 -0.009 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4553 185 1 0.652 0.94 4.00 0.537 0.868 0.196 2.38 0.338 -0.007