412/Noatak, Alaska - ak109 Additional Site Information Gordon Jacoby, Rosanne D'Arrigo, and Brendan Buckley 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 : AK109.CRN Measurement file name : AK109.RWL Date checked : 15NOV11 Checked by : B. Bauer Beginning year : 1524 Ending year : 1990 Principal investigators: Gordon Jacoby Rosanne D'Arrigo Brendan Buckley Site name : 412/Noatak Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : +6755 Longitude : -16218 Elevation : 750M Series intercorrelation: 0.616 Avg mean sensitivity : 0.224 Avg standard deviation : 0.126 Avg autocorrelation : 0.802 Number dated series : 31 Segment length tested : 50 Number problem segments: 18 Pct problem segments : 6.74 PART 5: CORRELATION OF SERIES BY SEGMENTS: 412/Noatak 11:18 Tue 15 Nov 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 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 FTR6NS 1930 1990 .54 .62 2 FTR8SS 1774 1990 .81 .81 .69 .64 .68 .71 .78 .68 .73 3 FTR8ES 1766 1990 .67 .68 .74 .82 .71 .70 .81 .46 .59 4 FTR10NS 1749 1990 .60 .57 .57 .60 .75 .72 .45 .41B .40 .43 5 FTR11SS 1819 1990 .72 .63 .77 .85 .66 .56 .65 6 FTR12NWS 1747 1990 -.05B .03B .11B .38 .57 .53 .69 .80 .50 .42 7 FTR13NS 1860 1990 .73 .73 .76 .71 .78 8 FTR14WS 1851 1990 .57 .46 .45 .61 .75 9 FTR14ES 1848 1990 .41 .32A .52 .79 .73 .76 10 FTR15WS 1782 1990 .60 .47 .38 .55 .51 .54 .61 .63 11 FTR17NS 1858 1990 .45 .70 .76 .59 .51 12 FTR19ES 1753 1990 .69 .63 .55 .68 .61 .60 .44 .37 .62 13 FTR25WAS 1769 1990 .64 .43 -.10B .17B .60 .73 .47 -.11B .02B 14 FTR30NWS 1802 1989 .09B .13B .56 .68 .79 .65 .77 15 FTR31SS 1860 1990 .62 .71 .75 .57 .57 16 FTR33SWS 1859 1990 .65 .76 .81 .59 .54 17 FTR36SS 1799 1990 .58 .58 .65 .49 .52 .68 .58 .69 18 FTR38ES 1764 1990 .46 .59 .60 .61 .61 .42B .51 .67 .61 19 FTR38WS 1759 1990 .50 .55 .71 .66 .66 .76 .76 .68 .71 20 FTR44WS 1722 1923 .34 .31A .33A .45 .38 .42 .59 .55 21 21012ES 1633 1976 .78 .71 .85 .85 .73 .77 .68 .51 .58 .66 .72 .68 .62 .64 22 021012WS 1635 1976 .80 .80 .88 .84 .76 .76 .62 .43 .49 .57 .66 .67 .64 .66 23 21022NES 1577 1903 .56 .72 .69 .61 .72 .83 .73 .62 .71 .57 .58 .69 .67 24 21022SWS 1560 1976 .60 .59 .72 .81 .72 .70 .64 .55 .51 .50 .29B .46 .78 .81 .78 .58 .60 25 02103SS 1569 1924 .56 .57 .69 .59 .57 .66 .65 .63 .73 .73 .40 .14B .28B .56 26 21011NES 1611 1816 .76 .80 .65 .72 .79 .74 .69 .46 27 2103SWS 1524 1852 .75 .70 .70 .32A .33 .60 .52 .63 .76 .82 .62 .56 28 21011SWS 1635 1736 .79 .71 .75 .80 29 02103NS 1595 1976 .72 .73 .66 .62 .53 .52 .69 .79 .80 .55 .50 .67 .69 .70 .57 .57 30 02102NES 1600 1819 .83 .83 .71 .78 .84 .79 .76 .76 31 02102SWS 1600 1662 .85 .86 Av segment correlation .64 .63 .75 .72 .64 .72 .69 .59 .62 .60 .49 .52 .60 .65 .67 .56 .60 PART 7: DESCRIPTIVE STATISTICS: 412/Noatak 11:18 Tue 15 Nov 2011 Page 8 ----------------------------------------------------------------------------------------------------------------------------------- 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 FTR6NS 1930 1990 61 2 0 .614 .43 .98 .229 .906 .167 2.51 .425 -.062 1 2 FTR8SS 1774 1990 217 9 0 .723 .27 .81 .133 .781 .202 2.73 .376 -.009 1 3 FTR8ES 1766 1990 225 9 0 .679 .29 1.05 .180 .831 .230 2.75 .408 -.023 2 4 FTR10NS 1749 1990 242 10 1 .539 .21 .46 .088 .707 .238 2.49 .313 .009 1 5 FTR11SS 1819 1990 172 7 0 .709 .34 .82 .136 .726 .219 2.73 .435 -.056 1 6 FTR12NWS 1747 1990 244 10 3 .407 .24 .73 .135 .876 .202 2.89 .432 -.008 1 7 FTR13NS 1860 1990 131 5 0 .738 .36 1.08 .195 .769 .218 2.96 .491 -.043 1 8 FTR14WS 1851 1990 140 5 0 .586 .39 .91 .181 .800 .222 2.68 .357 .094 2 9 FTR14ES 1848 1990 143 6 1 .652 .39 .98 .222 .857 .204 2.83 .491 -.008 2 10 FTR15WS 1782 1990 209 8 0 .549 .26 .68 .114 .726 .201 2.48 .349 -.001 1 11 FTR17NS 1858 1990 133 5 0 .593 .49 .89 .202 .838 .170 2.69 .413 -.058 1 12 FTR19ES 1753 1990 238 9 0 .593 .18 .53 .080 .799 .211 2.73 .486 -.063 1 13 FTR25WAS 1769 1990 222 9 4 .276 .22 .59 .151 .860 .213 2.44 .215 -.065 1 14 FTR30NWS 1802 1989 188 7 2 .517 .56 1.48 .347 .879 .226 2.54 .304 -.009 1 15 FTR31SS 1860 1990 131 5 0 .646 .42 .92 .254 .925 .175 2.73 .543 -.040 1 16 FTR33SWS 1859 1990 132 5 0 .693 .64 1.37 .268 .823 .174 2.74 .468 -.041 1 17 FTR36SS 1799 1990 192 8 0 .592 .27 .76 .148 .851 .232 2.57 .281 -.094 1 18 FTR38ES 1764 1990 227 9 1 .551 .26 .61 .122 .806 .177 2.72 .450 .010 1 19 FTR38WS 1759 1990 232 9 0 .668 .29 .94 .117 .792 .188 2.71 .377 -.018 1 20 FTR44WS 1722 1923 202 8 2 .434 .24 .69 .131 .869 .239 2.63 .436 .015 1 21 21012ES 1633 1976 344 14 0 .731 .16 .49 .074 .780 .234 2.66 .336 -.033 1 22 021012WS 1635 1976 342 14 0 .704 .16 .46 .073 .796 .219 2.77 .390 -.034 1 23 21022NES 1577 1903 327 13 0 .658 .21 .62 .088 .693 .243 2.68 .427 -.045 1 24 21022SWS 1560 1976 417 17 1 .631 .19 .67 .101 .868 .217 2.72 .309 -.015 1 25 02103SS 1569 1924 356 14 2 .561 .15 .79 .108 .827 .296 2.63 .320 -.016 1 26 21011NES 1611 1816 206 8 0 .675 .16 .47 .083 .842 .233 2.46 .338 -.034 2 27 2103SWS 1524 1852 329 12 1 .572 .18 .58 .086 .709 .256 2.71 .384 .013 1 28 21011SWS 1635 1736 102 4 0 .791 .17 .38 .069 .768 .218 2.43 .404 -.082 1 29 02103NS 1595 1976 382 16 0 .633 .15 .44 .079 .791 .261 2.73 .366 .013 4 30 02102NES 1600 1819 220 8 0 .780 .16 .46 .073 .812 .222 2.58 .324 -.042 1 31 02102SWS 1600 1662 63 2 0 .858 .27 .43 .075 .556 .232 2.51 .466 -.026 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6769 267 18 .616 .25 1.48 .126 .802 .224 2.96 .378 -.022