Chronology file name : NONE Measurement file name : AK13.RWL Date checked : 01JUL96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1785 Ending year : 1987 Principal investigators: KLAUS F. KAISER Site name : TAKU GLACIER, NOTHERN BORDER, TAKU INLET Site location : ALASKA, USA Species information : PCSI SITKA SPRUCE Latitude : 5828N Longitude : 13401W Elevation : 8 M Series intercorrelation: 0.624 Avg mean sensitivity : 0.159 Avg standard deviation : 0.986 Avg autocorrelation : 0.926 Number dated series : 18 Segment length tested : 50 Number problem segments: 9 Pct problem segments : 7.69 Are there obvious misdated series? YES Number possible misdated series : 2 Percent misdated series : 11.11 Do they affect chronology quality? N/A Recommend withhold from ITRDB? N/A Comments: #9 NTAK0090, #12 NTAK0120 1925-1980 ARE MISDATED DESPITE MISDATES, STILL A VERY GOOD DATA SET PART 5: CORRELATION OF SERIES BY SEGMENTS: 23:06 Mon 01 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 1775 1800 1825 1850 1875 1900 1925 1950 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 NTAK0010 1810 1987 .66 .59 .80 .88 .87 .89 .80 2 NTAK0020 1821 1987 .65 .64 .66 .85 .85 .79 .75 3 NTAK0030 1823 1987 .39 .39 .60 .81 .66 .64 .71 4 NTAK0040 1785 1987 .54 .45 .48 .75 .82 .78 .79 .84 5 NTAK0050 1799 1986 .64 .62 .62 .75 .87 .81 .74 .75 6 NTAK0060 1798 1985 .34 .40 .28A .65 .69 .63 .75 .74 7 NTAK0070 1806 1978 .33 .24A .71 .70 .58 .72 .77 8 NTAK0080 1812 1987 .33B .41 .45 .54 .67 .70 .63 9 NTAK0090 1890 1982 .19B .19B .23B .10B 10 NTAK0100 1885 1974 .54 .69 .65 11 NTAK0110 1857 1980 .68 .78 .80 .65 .50 12 NTAK0120 1872 1980 .59 .59 .56 .47B .38B 13 NTAK0130 1836 1984 .57 .63 .54 .43 .72 .58 14 NTAK0140 1849 1978 .53 .54 .48 .50 .67 .61 15 NTAK0150 1807 1987 .52 .45 .64 .73 .71 .75 .82 16 NTAK0160 1805 1986 .42 .60 .67 .80 .82 .81 .73 17 NTAK0170 1810 1987 .34 .55 .56 .55 .58 .74 .71 18 NTAKCH00 1785 1987 .88 .90 .92 .93 .94 .96 .98 .97 PART 7: DESCRIPTIVE STATISTICS: 23:06 Mon 01 JUL 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 NTAK0010 1810 1987 178 7 0 0.780 1.95 7.59 1.573 0.956 0.164 1.87 0.277 0.003 1 2 NTAK0020 1821 1987 167 7 0 0.727 2.37 5.99 1.489 0.955 0.149 2.01 0.300 -0.019 4 3 NTAK0030 1823 1987 165 7 0 0.611 1.78 5.24 1.276 0.950 0.179 2.08 0.400 -0.018 3 4 NTAK0040 1785 1987 203 8 0 0.689 1.35 4.30 0.675 0.871 0.169 2.15 0.371 0.027 1 5 NTAK0050 1799 1986 188 8 0 0.736 1.39 4.77 0.914 0.947 0.154 1.93 0.262 -0.014 3 6 NTAK0060 1798 1985 188 8 1 0.563 1.38 4.75 1.166 0.965 0.183 2.02 0.315 -0.006 1 7 NTAK0070 1806 1978 173 7 1 0.547 1.66 4.89 1.036 0.944 0.159 2.09 0.369 -0.029 1 8 NTAK0080 1812 1987 176 7 1 0.496 1.20 2.68 0.505 0.909 0.139 1.98 0.353 -0.017 2 9 NTAK0090 1890 1982 93 4 4 0.149 1.21 2.96 0.654 0.871 0.202 2.14 0.439 0.034 2 10 NTAK0100 1885 1974 90 3 0 0.612 1.66 2.82 0.605 0.838 0.173 1.94 0.334 0.045 2 11 NTAK0110 1857 1980 124 5 0 0.623 2.14 3.79 0.851 0.878 0.162 1.94 0.328 0.009 2 12 NTAK0120 1872 1980 109 5 2 0.496 1.87 3.28 0.567 0.807 0.150 1.83 0.311 0.036 1 13 NTAK0130 1836 1984 149 6 0 0.536 2.18 5.40 1.124 0.931 0.159 2.00 0.339 0.006 2 14 NTAK0140 1849 1978 130 6 0 0.534 1.69 4.16 0.852 0.896 0.196 1.88 0.286 -0.009 1 15 NTAK0150 1807 1987 181 7 0 0.657 1.45 4.67 1.020 0.971 0.123 2.04 0.313 -0.017 1 16 NTAK0160 1805 1986 182 7 0 0.644 1.46 5.05 1.318 0.972 0.148 2.10 0.388 -0.026 2 17 NTAK0170 1810 1987 178 7 0 0.529 1.43 3.09 0.683 0.907 0.164 2.00 0.333 0.028 1 18 NTAKCH00 1785 1987 203 8 0 0.924 1.77 4.44 0.957 0.959 0.123 2.04 0.318 -0.027 5 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2877 117 9 0.624 1.65 7.59 0.986 0.926 0.159 2.15 0.334 -0.003