Chronology file name : NONE Measurement file name : AK011.RWL Date checked : 12JAN96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1792 Ending year : 1983 Principal investigators: F. H. SCHWEINGRUBER Site name : MT. BILLY MITCHELL Site location : ALASKA, USA Species information : PCGL WHITE SPRUCE Latitude : 6120N Longitude : 14515W Elevation : 300 M Series intercorrelation: 0.667 Avg mean sensitivity : 0.166 Avg standard deviation : 0.380 Avg autocorrelation : 0.795 Number dated series : 24 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 2.65 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 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 738011 1813 1983 .57 .55 .34 .64 .84 .84 .85 2 738012 1807 1983 .61 .68 .57 .78 .86 .75 .73 3 738021 1815 1983 .57 .60 .62 .78 .82 .76 .69 4 738022 1840 1983 .70 .67 .77 .84 .73 .70 5 738031 1819 1983 .64 .65 .42 .62 .78 .83 .78 6 738032 1827 1983 .52 .48 .71 .74 .65 .60 7 738041 1795 1982 .71 .71 .57 .38 .57 .62 .66 .66 8 738042 1792 1983 .73 .71 .52 .46 .52 .54 .79 .73 9 738051 1804 1983 .60 .63 .57 .83 .85 .84 .84 10 738052 1808 1983 .72 .70 .65 .85 .83 .77 .77 11 738061 1840 1983 .37 .44 .65 .74 .64 .62 12 738062 1826 1983 .49 .31A .60 .81 .85 .85 13 738071 1824 1983 .57 .60 .43 .63 .73 .80 .75 14 738072 1825 1983 .67 .42 .61 .83 .83 .79 15 738081 1840 1983 .39B .73 .79 .73 .72 .75 16 738082 1832 1983 .26B .67 .75 .76 .70 .71 17 738091 1856 1983 .56 .78 .77 .73 .75 18 738092 1865 1983 .62 .80 .71 .65 .66 19 738101 1817 1983 .29B .33 .58 .75 .75 .76 .71 20 738102 1857 1983 .50 .72 .81 .76 .66 21 738111 1837 1983 .63 .59 .77 .84 .77 .75 22 738112 1832 1983 .72 .66 .79 .68 .66 .58 23 738121 1833 1983 .49 .56 .67 .79 .69 .66 24 738122 1880 1983 .79 .79 .71 .68 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 738011 1813 1983 171 7 0 0.670 0.99 2.25 0.517 0.923 0.169 1.93 0.309 -0.030 1 2 738012 1807 1983 177 7 0 0.684 1.06 2.10 0.329 0.773 0.170 1.97 0.315 0.003 1 3 738021 1815 1983 169 7 0 0.678 0.70 1.48 0.307 0.894 0.160 1.81 0.225 -0.034 1 4 738022 1840 1983 144 6 0 0.723 0.84 1.84 0.350 0.901 0.144 1.95 0.294 -0.049 1 5 738031 1819 1983 165 7 0 0.695 0.79 1.48 0.241 0.752 0.154 2.04 0.377 0.006 1 6 738032 1827 1983 157 6 0 0.629 0.63 1.02 0.152 0.651 0.155 2.14 0.383 -0.039 1 7 738041 1795 1982 188 8 0 0.608 0.80 1.86 0.375 0.891 0.161 2.04 0.313 0.016 1 8 738042 1792 1983 192 8 0 0.608 0.92 1.88 0.349 0.835 0.162 2.15 0.379 -0.007 1 9 738051 1804 1983 180 7 0 0.725 0.97 2.25 0.385 0.853 0.172 2.02 0.367 -0.056 1 10 738052 1808 1983 176 7 0 0.746 0.88 1.66 0.314 0.835 0.166 1.93 0.317 0.000 1 11 738061 1840 1983 144 6 0 0.589 0.71 1.56 0.219 0.820 0.136 2.03 0.371 -0.077 1 12 738062 1826 1983 158 6 1 0.650 0.93 1.75 0.280 0.738 0.165 2.05 0.333 0.012 1 13 738071 1824 1983 160 7 0 0.643 1.31 3.07 0.532 0.855 0.181 1.96 0.339 0.011 1 14 738072 1825 1983 159 6 0 0.689 1.03 2.08 0.425 0.865 0.177 1.90 0.323 0.025 1 15 738081 1840 1983 144 6 1 0.645 1.50 3.21 0.649 0.859 0.176 1.90 0.295 0.006 1 16 738082 1832 1983 152 6 1 0.589 1.58 3.38 0.593 0.807 0.181 2.23 0.430 -0.029 2 17 738091 1856 1983 128 5 0 0.691 0.93 2.49 0.568 0.934 0.159 2.00 0.370 -0.040 1 18 738092 1865 1983 119 5 0 0.688 1.04 2.84 0.577 0.901 0.173 2.08 0.412 0.005 1 19 738101 1817 1983 167 7 1 0.596 1.09 1.87 0.284 0.540 0.211 2.04 0.434 0.046 1 20 738102 1857 1983 127 5 0 0.679 1.05 1.58 0.217 0.379 0.182 2.11 0.458 -0.001 1 21 738111 1837 1983 147 6 0 0.737 1.24 2.39 0.324 0.675 0.156 2.14 0.390 -0.016 1 22 738112 1832 1983 152 6 0 0.709 1.09 2.28 0.384 0.819 0.168 2.11 0.337 -0.057 1 23 738121 1833 1983 151 6 0 0.646 1.44 2.35 0.340 0.705 0.138 1.89 0.336 -0.017 2 24 738122 1880 1983 104 4 0 0.733 1.65 3.10 0.539 0.821 0.154 1.98 0.339 -0.028 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3731 151 4 0.667 1.03 3.38 0.380 0.795 0.166 2.23 0.350 -0.014