Kodiak Island, Alaska - ak108 Additional Site Information Greg Wiles, Rosanne D'Arrigo, Gordon Jacoby Notes: Project Title "Synthesis of Three Decades of Research on Tree Growth in Northern Forests in relation to Global Climatic Change" COFECHA output: Chronology file name : AK108.CRN Measurement file name : AK108.RWL Date checked : 21SEP11 Checked by : B. Bauer Beginning year : 1721 Ending year : 1986 Principal investigators: Greg Wiles Rosanne D'Arrigo Gordon Jacoby Site name : Kodiak Island Site location : Alaska Species information : PCSI SITKA SPRUCE Latitude : 5737 Longitude : -15219 Elevation : M Series intercorrelation: 0.635 Avg mean sensitivity : 0.218 Avg standard deviation : 0.648 Avg autocorrelation : 0.874 Number dated series : 43 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 1.22 PART 5: CORRELATION OF SERIES BY SEGMENTS: Kodiak Island 09:44 Wed 21 Sep 2011 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 FORK0110 1721 1985 .44 .61 .69 .73 .73 .70 .72 .70 .68 .61 2 PONY0050 1731 1985 .52 .80 .81 .89 .86 .74 .76 .70 .58 .61 3 PONY0100 1732 1985 .83 .85 .80 .85 .81 .65 .45 .49 .73 .78 4 FORK0070 1735 1985 .56 .62 .73 .85 .73 .74 .84 .52 .39 .54 5 PONY0070 1735 1985 .69 .64 .69 .70 .69 .60 .67 .71 .63 .71 6 FORK0100 1736 1985 .75 .74 .81 .85 .67 .64 .78 .70 .59 .58 7 PONY0030 1738 1985 .72 .81 .84 .89 .83 .66 .69 .72 .75 .80 8 PONY0130 1739 1985 .78 .83 .83 .83 .74 .57 .58 .55 .51 .54 9 FORK0120 1741 1985 .56 .58 .76 .86 .78 .72 .75 .70 .60 .61 10 PONY0160 1742 1985 .71 .64 .59 .76 .74 .59 .64 .58 .60 .69 11 PONY0010 1750 1985 .78 .78 .92 .82 .68 .72 .71 .72 .71 12 PONY0120 1750 1985 .66 .80 .82 .78 .59 .63 .70 .56 .59 13 PONY0090 1753 1985 .53 .68 .84 .85 .70 .66 .69 .74 .77 14 FORK0090 1755 1985 .69 .82 .83 .70 .71 .77 .70 .67 .69 15 PONY0110 1755 1985 .78 .84 .82 .77 .66 .58 .52 .56 .61 16 FORK0060 1761 1985 .43 .67 .85 .73 .81 .77 .63 .61 .56 17 FORK0050 1762 1985 .72 .78 .70 .65 .70 .62 .51 .59 .65 18 FORK0040 1766 1985 .34B .46 .71 .65 .67 .74 .62 .57 .56 19 PONY0020 1769 1985 .61 .71 .84 .83 .56 .58 .69 .63 .63 20 FORK0080 1779 1985 .72 .80 .75 .73 .80 .83 .71 .73 21 ISTH0120 1789 1986 .39B .15B .14B .62 .78 .82 .78 .83 22 FORK0020 1792 1985 .43 .76 .61 .61 .70 .69 .61 .65 23 FORK0030 1797 1985 .34 .53 .45 .50 .67 .67 .64 .64 24 ISTH0100 1803 1986 .57 .65 .49 .58 .74 .64 .58 25 FORK0160 1806 1985 .57 .61 .64 .67 .72 .56 .52 26 FORK0140 1807 1985 .80 .75 .62 .69 .70 .69 .68 27 FORK0130 1809 1985 .55 .60 .54 .58 .61 .53 .55 28 FORK0170 1814 1985 .65 .69 .67 .76 .55 .42 .40 29 ISTH0090 1818 1986 .68 .60 .38 .61 .79 .69 .71 30 PONY0040 1822 1985 .44 .48 .59 .68 .69 .69 .70 31 FORK0150 1829 1985 .66 .57 .65 .72 .64 .61 32 ISTH0180 1832 1986 .35 .47 .57 .62 .57 .58 33 ISTH0070 1852 1986 .34 .62 .75 .59 .64 34 ISTH0030 1858 1986 .61 .70 .70 .69 .77 35 ISTH0020 1859 1986 .49 .63 .74 .64 .68 36 ISTH0170 1860 1986 .63 .71 .78 .64 .68 37 ISTH0150 1861 1986 .57 .69 .76 .70 .72 38 ISTH0060 1862 1986 .34 .58 .80 .66 .68 39 ISTH0140 1862 1986 .38 .49 .56 .46 .55 40 ISTH0080 1863 1986 .59 .62 .65 .63 .70 41 ISTH0160 1872 1986 .52 .50 .77 .77 .68 42 PONY0080 1875 1985 .73 .60 .52 .63 43 ISTH0130 1886 1986 .59 .72 .62 .63 Av segment correlation .66 .67 .69 .73 .68 .60 .66 .68 .62 .65 PART 7: DESCRIPTIVE STATISTICS: Kodiak Island 09:44 Wed 21 Sep 2011 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 FORK0110 1721 1985 265 10 0 .645 .68 2.23 .427 .894 .239 2.52 .295 .014 1 2 PONY0050 1731 1985 255 10 0 .701 .76 3.61 .706 .942 .258 2.47 .301 -.044 1 3 PONY0100 1732 1985 254 10 0 .676 .87 3.13 .651 .888 .278 2.53 .286 -.090 1 4 FORK0070 1735 1985 251 10 0 .647 .46 1.34 .235 .857 .219 2.96 .464 .003 3 5 PONY0070 1735 1985 251 10 0 .651 1.01 4.50 .526 .860 .181 2.68 .450 -.015 1 6 FORK0100 1736 1985 250 10 0 .693 .58 2.30 .402 .910 .221 2.71 .345 -.027 4 7 PONY0030 1738 1985 248 10 0 .737 1.07 2.81 .547 .895 .200 2.58 .358 -.002 4 8 PONY0130 1739 1985 247 10 0 .648 .83 4.15 .823 .915 .292 2.70 .390 -.032 1 9 FORK0120 1741 1985 245 10 0 .661 1.10 2.02 .335 .833 .148 2.47 .292 -.004 3 10 PONY0160 1742 1985 244 10 0 .635 .59 2.27 .538 .946 .283 2.65 .404 -.021 1 11 PONY0010 1750 1985 236 9 0 .755 1.24 3.73 .816 .921 .206 2.52 .335 -.062 1 12 PONY0120 1750 1985 236 9 0 .646 .93 3.40 .679 .876 .285 2.78 .424 .011 1 13 PONY0090 1753 1985 233 9 0 .680 .74 1.82 .428 .857 .281 2.71 .384 -.013 3 14 FORK0090 1755 1985 231 9 0 .702 .97 1.94 .359 .838 .167 2.42 .312 -.035 1 15 PONY0110 1755 1985 231 9 0 .659 .75 2.50 .616 .904 .279 2.74 .416 -.070 1 16 FORK0060 1761 1985 225 9 0 .617 .66 1.99 .368 .897 .192 2.62 .398 -.063 4 17 FORK0050 1762 1985 224 9 0 .641 .48 2.03 .321 .837 .241 2.46 .237 -.008 1 18 FORK0040 1766 1985 220 9 1 .560 .37 1.20 .187 .851 .232 2.49 .331 -.026 3 19 PONY0020 1769 1985 217 9 0 .639 .87 2.42 .522 .914 .199 2.73 .410 -.057 1 20 FORK0080 1779 1985 207 8 0 .740 .61 1.44 .253 .759 .232 2.67 .346 -.003 5 21 ISTH0120 1789 1986 198 8 3 .593 1.61 5.03 1.116 .917 .220 2.68 .410 .014 1 22 FORK0020 1792 1985 194 8 0 .567 .77 1.70 .292 .751 .191 2.77 .351 -.073 1 23 FORK0030 1797 1985 189 8 0 .487 .69 1.81 .358 .886 .208 2.53 .309 -.047 1 24 ISTH0100 1803 1986 184 7 0 .562 1.53 4.69 1.104 .933 .175 2.68 .427 -.010 1 25 FORK0160 1806 1985 180 7 0 .596 .89 2.11 .335 .828 .173 2.60 .414 .012 3 26 FORK0140 1807 1985 179 7 0 .703 .79 2.27 .363 .845 .183 2.71 .375 -.018 1 27 FORK0130 1809 1985 177 7 0 .554 .84 2.29 .280 .747 .183 2.47 .323 -.029 2 28 FORK0170 1814 1985 172 7 0 .601 .35 1.00 .210 .885 .225 2.72 .495 .017 9 29 ISTH0090 1818 1986 169 7 0 .628 1.62 5.95 1.572 .958 .190 2.56 .421 -.028 1 30 PONY0040 1822 1985 164 7 0 .616 1.50 4.15 .903 .888 .237 2.60 .371 .023 1 31 FORK0150 1829 1985 157 6 0 .646 .73 2.03 .320 .748 .221 2.80 .398 -.021 1 32 ISTH0180 1832 1986 155 6 0 .535 1.75 3.84 .978 .896 .184 2.55 .416 -.017 1 33 ISTH0070 1852 1986 135 5 0 .507 1.83 5.13 1.178 .940 .164 2.50 .325 -.040 2 34 ISTH0030 1858 1986 129 5 0 .665 2.30 6.31 1.643 .938 .198 2.46 .366 .019 1 35 ISTH0020 1859 1986 128 5 0 .577 2.23 7.05 1.819 .943 .220 2.53 .384 -.038 1 36 ISTH0170 1860 1986 127 5 0 .685 1.82 6.01 1.324 .939 .201 2.72 .508 .052 3 37 ISTH0150 1861 1986 126 5 0 .654 2.51 6.13 1.127 .842 .186 2.51 .318 -.036 1 38 ISTH0060 1862 1986 125 5 0 .536 1.95 4.72 1.233 .920 .209 2.59 .410 -.032 1 39 ISTH0140 1862 1986 125 5 0 .451 1.60 4.75 .941 .882 .210 2.76 .437 .002 1 40 ISTH0080 1863 1986 124 5 0 .612 1.71 3.50 .788 .844 .187 2.48 .377 -.018 1 41 ISTH0160 1872 1986 115 5 0 .590 2.62 8.15 1.711 .923 .174 2.43 .342 -.043 1 42 PONY0080 1875 1985 111 4 0 .641 1.77 3.35 .602 .670 .231 2.58 .400 .045 1 43 ISTH0130 1886 1986 101 4 0 .606 1.92 3.37 .707 .729 .219 2.51 .443 .014 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 8234 327 4 .635 1.06 8.15 .648 .874 .218 2.96 .372 -.021