E. Yakutat, Alaska - AK18 Additional Site Information KLAUS F. KAISER Reference: Kaiser, K.F., 1993, Growth Rings as indicators of glacier advances, surges, and floods. Dendrochronologia 11:101-122. COFECHA output: Chronology file name : NONE Measurement file name : AK18.RWL Date checked : 01JUL96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1807 Ending year : 1986 Principal investigators: KLAUS F. KAISER Site name : BRASSIERE WILL, TAKU INLET, JUNEAU AREA Site location : ALASKA, USA Species information : PCSI SITKA SPRUCE Latitude : 5828N Longitude : 13401W Elevation : 30 M Series intercorrelation: 0.613 Avg mean sensitivity : 0.215 Avg standard deviation : 1.125 Avg autocorrelation : 0.930 Number dated series : 17 Segment length tested : 50 Number problem segments: 3 Pct problem segments : 4.17 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 CORELATION WITH MASTER, EXCELLENT DATA SET PART 5: CORRELATION OF SERIES BY SEGMENTS: 23:09 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 1800 1825 1850 1875 1900 1925 1950 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 EYAK0010 1820 1986 .82 .83 .64 .66 .77 .79 .73 2 EYAK0020 1807 1986 .75 .67 .42 .52 .62 .79 .68 3 EYAK0030 1899 1986 .60 .61 .47 .49 4 EYAK0040 1911 1986 .44 .41B .43 5 EYAK0050 1908 1986 .43 .16B .35 6 EYAK0060 1910 1986 .73 .75 .42 7 EYAK0070 1919 1986 .73 .76 .58 8 EYAK0080 1893 1986 .50 .56 .48 .46B 9 EYAK0090 1901 1986 .78 .78 .57 10 EYAK0100 1891 1986 .51 .56 .68 .52 11 EYAK0110 1884 1986 .47 .77 .62 .43 12 EYAK0120 1893 1986 .68 .69 .68 .61 13 EYAK0130 1884 1986 .48 .51 .42 .49 14 EYAK0140 1887 1986 .44 .54 .60 .58 15 EYAK0150 1864 1986 .44 .46 .59 .55 .44 16 EYAK0160 1906 1986 .73 .54 .57 17 EYAKCH00 1807 1986 .95 .95 .85 .89 .93 .95 .91 PART 7: DESCRIPTIVE STATISTICS: 23:09 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 EYAK0010 1820 1986 167 7 0 0.753 1.35 4.69 1.147 0.941 0.261 2.10 0.367 -0.046 1 2 EYAK0020 1807 1986 180 7 0 0.679 0.97 3.09 0.822 0.942 0.292 1.96 0.309 0.005 2 3 EYAK0030 1899 1986 88 4 0 0.509 2.03 5.18 1.701 0.960 0.231 2.07 0.372 0.287 3 4 EYAK0040 1911 1986 76 3 1 0.428 1.47 3.04 0.701 0.887 0.171 2.14 0.431 -0.044 1 5 EYAK0050 1908 1986 79 3 1 0.371 1.34 5.06 1.304 0.958 0.223 1.71 0.202 0.019 2 6 EYAK0060 1910 1986 77 3 0 0.610 1.65 6.12 1.416 0.926 0.208 2.03 0.305 -0.064 1 7 EYAK0070 1919 1986 68 3 0 0.659 1.42 2.85 0.723 0.934 0.154 2.40 0.418 -0.063 1 8 EYAK0080 1893 1986 94 4 1 0.545 1.19 4.40 1.061 0.882 0.212 2.01 0.310 0.027 1 9 EYAK0090 1901 1986 86 3 0 0.728 1.50 3.52 0.913 0.906 0.211 1.94 0.302 -0.051 2 10 EYAK0100 1891 1986 96 4 0 0.517 1.29 4.43 1.029 0.920 0.197 2.09 0.337 -0.034 1 11 EYAK0110 1884 1986 103 4 0 0.466 1.50 5.29 1.340 0.911 0.209 1.92 0.256 -0.048 1 12 EYAK0120 1893 1986 94 4 0 0.661 1.73 5.91 1.596 0.966 0.217 2.14 0.370 -0.074 1 13 EYAK0130 1884 1986 103 4 0 0.480 1.38 4.43 1.165 0.867 0.276 1.97 0.329 -0.012 1 14 EYAK0140 1887 1986 100 4 0 0.490 1.51 4.01 0.950 0.951 0.135 2.10 0.371 -0.041 2 15 EYAK0150 1864 1986 123 5 0 0.494 2.37 6.68 1.452 0.940 0.204 2.06 0.371 -0.081 1 16 EYAK0160 1906 1986 81 3 0 0.670 2.08 5.10 1.085 0.903 0.155 2.21 0.324 -0.112 1 17 EYAKCH00 1807 1986 180 7 0 0.930 1.18 4.20 0.939 0.966 0.193 2.11 0.269 -0.045 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1795 72 3 0.613 1.49 6.68 1.125 0.930 0.215 2.40 0.329 -0.023