Chronology file name : NONE Measurement file name : AK007.RWL Date checked : 12JAN96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1770 Ending year : 1983 Principal investigators: F. H. SCHWEINGRUBER Site name : GLENN HIGHWAY Site location : ALASKA, USA Species information : PCGL WHITE SPRUCE Latitude : 6120N Longitude : 14935W Elevation : 100 M Series intercorrelation: 0.577 Avg mean sensitivity : 0.216 Avg standard deviation : 0.441 Avg autocorrelation : 0.822 Number dated series : 22 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 3.10 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: #12 719072 1875-1949 HAS LOW CORRELATION EXCELLENT HIGH QUALITY DATA SET PART 5: CORRELATION OF SERIES BY SEGMENTS: 14:01 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 719011 1828 1983 .40 .35 .54 .69 .78 .72 2 719012 1873 1983 .44B .50 .53 .64 .67 3 719021 1906 1983 .64 .67 .60 4 719022 1908 1983 .71 .78 .76 5 719031 1839 1983 .48 .39 .48 .62 .71 .71 6 719032 1820 1983 .52 .39 .33 .51 .52 .49 .49 7 719051 1788 1983 .66 .62 .60 .57 .59 .46 .47 .52 8 719052 1771 1983 .42 .43 .58 .49 .45 .55 .64 .64 .61 9 719061 1867 1983 .64 .65 .65 .74 .71 10 719062 1902 1983 .63 .63 .53 11 719071 1770 1983 .42 .42 .65 .65 .31A .38 .67 .69 .64 12 719072 1783 1983 .55 .68 .71 .39 .14B .39B .59 .52 13 719081 1882 1983 .49 .55 .73 .72 14 719082 1889 1983 .33 .34 .63 .67 15 719091 1898 1983 .66 .65 .65 .59 16 719092 1862 1983 .44 .60 .59 .63 .62 17 719101 1817 1983 .38 .58 .55 .77 .78 .65 .68 18 719102 1827 1983 .55 .54 .72 .78 .75 .76 19 719121 1810 1983 .78 .83 .71 .67 .63 .58 .51 20 719122 1793 1983 .59 .76 .85 .76 .73 .62 .53 .45 21 719131 1827 1983 .55 .47 .65 .73 .75 .77 22 719132 1828 1983 .52 .48 .63 .76 .72 .66 PART 7: DESCRIPTIVE STATISTICS: 14:01 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 719011 1828 1983 156 6 0 0.558 0.68 2.74 0.568 0.911 0.248 2.15 0.456 -0.014 1 2 719012 1873 1983 111 5 1 0.526 0.72 1.95 0.385 0.882 0.199 2.07 0.315 -0.019 1 3 719021 1906 1983 78 3 0 0.622 1.20 2.80 0.589 0.864 0.186 2.09 0.290 0.071 3 4 719022 1908 1983 76 3 0 0.728 1.33 2.79 0.623 0.861 0.202 1.89 0.311 -0.064 1 5 719031 1839 1983 145 6 0 0.544 0.81 3.50 0.661 0.846 0.272 1.87 0.260 -0.041 1 6 719032 1820 1983 164 7 0 0.467 0.49 1.44 0.205 0.781 0.214 1.94 0.315 -0.047 1 7 719051 1788 1983 196 8 0 0.557 0.70 1.88 0.410 0.891 0.204 1.90 0.315 -0.040 1 8 719052 1771 1983 213 9 0 0.498 0.86 2.05 0.447 0.903 0.191 1.96 0.323 -0.022 1 9 719061 1867 1983 117 5 0 0.671 1.13 2.69 0.420 0.728 0.204 2.06 0.336 -0.057 1 10 719062 1902 1983 82 3 0 0.576 1.23 2.27 0.392 0.662 0.211 2.11 0.410 0.022 1 11 719071 1770 1983 214 9 1 0.514 0.50 1.55 0.231 0.793 0.223 2.07 0.315 0.030 1 12 719072 1783 1983 201 8 2 0.475 0.50 1.18 0.234 0.771 0.257 2.03 0.364 -0.019 1 13 719081 1882 1983 102 4 0 0.605 1.20 2.56 0.425 0.731 0.213 2.15 0.462 -0.054 1 14 719082 1889 1983 95 4 0 0.463 1.22 2.90 0.586 0.757 0.247 1.96 0.289 0.054 1 15 719091 1898 1983 86 4 0 0.688 1.39 3.99 0.742 0.868 0.189 1.98 0.361 -0.058 1 16 719092 1862 1983 122 5 0 0.550 1.17 3.31 0.769 0.927 0.194 2.04 0.380 -0.008 1 17 719101 1817 1983 167 7 0 0.583 0.70 2.16 0.449 0.881 0.223 2.11 0.358 -0.056 1 18 719102 1827 1983 157 6 0 0.665 0.84 3.30 0.638 0.891 0.234 1.98 0.302 -0.048 2 19 719121 1810 1983 174 7 0 0.686 0.91 2.26 0.347 0.757 0.206 2.00 0.405 -0.027 1 20 719122 1793 1983 191 8 0 0.633 0.79 1.74 0.236 0.644 0.196 2.02 0.340 -0.029 1 21 719131 1827 1983 157 6 0 0.641 0.85 1.97 0.350 0.819 0.195 2.00 0.430 0.015 1 22 719132 1828 1983 156 6 0 0.618 1.14 3.35 0.604 0.879 0.212 2.03 0.377 0.023 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3160 129 4 0.577 0.86 3.99 0.441 0.822 0.216 2.15 0.350 -0.019