Chronology file name : NONE Measurement file name : AK012.RWL Date checked : 12JAN96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1795 Ending year : 1983 Principal investigators: F. H. SCHWEINGRUBER Site name : NORTHWAY JUNCTION Site location : ALASKA, USA Species information : PCGL WHITE SPRUCE Latitude : 6550N Longitude : 14120W Elevation : 600 M Series intercorrelation: 0.797 Avg mean sensitivity : 0.248 Avg standard deviation : 0.441 Avg autocorrelation : 0.832 Number dated series : 26 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 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: 14:02 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 1775 1800 1825 1850 1875 1900 1925 1950 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 698011 1918 1983 .58 .60 .73 2 698012 1918 1983 .56 .73 .82 3 698021 1819 1983 .91 .91 .94 .80 .58 .71 .79 4 698022 1807 1983 .84 .92 .96 .86 .67 .75 .84 5 698031 1795 1982 .83 .84 .88 .90 .81 .77 .60 .62 6 698032 1796 1980 .73 .74 .87 .91 .79 .61 .38 .37 7 698041 1801 1983 .66 .84 .89 .72 .64 .73 .75 8 698042 1800 1983 .68 .86 .88 .78 .74 .79 .81 9 698051 1808 1983 .71 .92 .91 .88 .83 .83 .85 10 698052 1811 1983 .77 .87 .91 .90 .81 .82 .83 11 698061 1799 1983 .77 .78 .86 .88 .81 .68 .71 .73 12 698062 1804 1983 .77 .85 .86 .84 .76 .78 .83 13 698071 1807 1983 .81 .91 .96 .89 .73 .77 .84 14 698072 1808 1983 .75 .92 .94 .89 .72 .74 .79 15 698091 1822 1983 .84 .84 .87 .84 .76 .78 .81 16 698092 1823 1983 .69 .73 .87 .86 .85 .82 .83 17 698101 1808 1983 .80 .88 .88 .75 .61 .65 .75 18 698102 1810 1983 .85 .90 .90 .71 .47 .67 .74 19 698111 1803 1983 .77 .91 .89 .80 .75 .84 .83 20 698112 1806 1983 .84 .89 .88 .85 .80 .77 .78 21 698121 1836 1983 .83 .81 .73 .76 .70 .75 22 698122 1835 1983 .88 .82 .84 .85 .86 .88 23 698131 1797 1983 .84 .84 .90 .85 .83 .80 .74 .83 24 698132 1797 1983 .87 .87 .91 .91 .63 .52 .83 .83 25 698141 1820 1983 .86 .90 .87 .77 .75 .84 .82 26 698142 1813 1983 .80 .83 .76 .67 .79 .84 .88 PART 7: DESCRIPTIVE STATISTICS: 14:02 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 698011 1918 1983 66 3 0 0.664 2.46 5.77 1.529 0.889 0.289 1.95 0.299 0.023 1 2 698012 1918 1983 66 3 0 0.664 1.75 3.91 0.945 0.897 0.217 1.98 0.417 -0.084 1 3 698021 1819 1983 165 7 0 0.828 0.88 2.42 0.470 0.861 0.220 1.88 0.299 -0.066 1 4 698022 1807 1983 177 7 0 0.849 0.87 2.52 0.402 0.804 0.216 2.12 0.345 -0.075 1 5 698031 1795 1982 188 8 0 0.792 0.66 2.26 0.515 0.935 0.268 1.89 0.332 -0.021 1 6 698032 1796 1980 185 8 0 0.692 0.74 3.07 0.640 0.926 0.261 1.97 0.349 -0.029 2 7 698041 1801 1983 183 7 0 0.747 0.57 1.51 0.349 0.911 0.199 2.02 0.315 -0.051 1 8 698042 1800 1983 184 7 0 0.786 0.62 1.99 0.416 0.929 0.211 1.94 0.309 -0.045 1 9 698051 1808 1983 176 7 0 0.841 0.61 2.02 0.417 0.866 0.287 1.77 0.233 -0.095 1 10 698052 1811 1983 173 7 0 0.845 0.56 2.22 0.360 0.820 0.310 1.91 0.270 -0.097 1 11 698061 1799 1983 185 8 0 0.784 0.65 2.05 0.306 0.797 0.227 2.04 0.312 -0.048 1 12 698062 1804 1983 180 7 0 0.815 0.68 2.22 0.342 0.806 0.229 2.03 0.302 -0.072 1 13 698071 1807 1983 177 7 0 0.859 0.75 2.09 0.418 0.821 0.276 2.05 0.322 -0.059 1 14 698072 1808 1983 176 7 0 0.821 0.72 1.85 0.356 0.789 0.267 2.03 0.322 -0.067 2 15 698091 1822 1983 162 7 0 0.810 0.72 1.80 0.374 0.788 0.257 1.79 0.284 -0.060 1 16 698092 1823 1983 161 7 0 0.786 0.87 2.11 0.367 0.691 0.260 1.84 0.300 -0.063 1 17 698101 1808 1983 176 7 0 0.783 0.48 1.36 0.346 0.912 0.254 1.98 0.338 -0.044 2 18 698102 1810 1983 174 7 0 0.770 0.54 1.64 0.386 0.921 0.263 1.80 0.232 -0.060 1 19 698111 1803 1983 181 7 0 0.804 0.72 1.66 0.305 0.717 0.249 1.94 0.281 -0.017 2 20 698112 1806 1983 178 7 0 0.830 1.01 2.99 0.453 0.737 0.260 1.83 0.256 -0.046 3 21 698121 1836 1983 148 6 0 0.767 1.00 1.98 0.382 0.741 0.247 1.90 0.374 -0.035 1 22 698122 1835 1983 149 6 0 0.841 0.87 1.94 0.299 0.674 0.217 1.89 0.301 -0.028 1 23 698131 1797 1983 187 8 0 0.831 0.74 2.53 0.590 0.931 0.242 1.96 0.347 -0.016 1 24 698132 1797 1983 187 8 0 0.780 0.79 2.93 0.724 0.935 0.261 1.96 0.342 -0.088 1 25 698141 1820 1983 164 7 0 0.804 0.78 1.59 0.328 0.778 0.229 1.83 0.307 -0.069 1 26 698142 1813 1983 171 7 0 0.778 0.91 2.02 0.361 0.747 0.228 1.93 0.314 -0.048 4 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4319 177 0 0.797 0.78 5.77 0.441 0.832 0.248 2.12 0.309 -0.053