Alces Bluff, Alaska - ak122 Additional Site Information Andrea Lloyd, Daniel Mann, and Paul Duffy Purpose of Collection: Ecology - collected to study tree growth response to climate Detrending: Horizontal line Cores Stored at: Middlebury College, Middlebury, VT Reference: Lloyd, A. et al. In Review, Canadian Journal of Forest Research NOTES: Third letter (B, F, or U) of the site code represents the topographic position on these steep river bluffs: B=trees towards the base of the bluff, F=trees out on the face of the bluff, and U=trees on the upper bluff. COFECHA output: Chronology file name : AK122.CRN Measurement file name : AK122.RWL Date checked : 19SEP12 Checked by : B. Bauer Beginning year : 1835 Ending year : 2009 Principal investigators: Andrea Lloyd Daniel Mann Paul Duffy Site name : Alces Bluff Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : 6349 Longitude : -14448 Elevation : 420M Series intercorrelation: 0.476 Avg mean sensitivity : 0.292 Avg standard deviation : 0.488 Avg autocorrelation : 0.693 Number dated series : 29 Segment length tested : 50 Number problem segments: 45 Pct problem segments : 30.82 PART 5: CORRELATION OF SERIES BY SEGMENTS: Alces Bluff 12:01 Wed 19 Sep 2012 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 1825 1850 1875 1900 1925 1950 1975 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 ABB010 1885 2009 .45 .44 .41 .49 .51 2 ABB009 1875 2009 .11B .33 .50 .52 .48 3 ABB008 1885 2009 .36 .46 .59 .75 .75 4 ABB007 1884 2009 .27B .41B .74 .68 .60 5 ABB006 1855 2009 .29A .41 .34B .61 .59 .55 6 ABB005 1882 2009 .33B .59 .54 .47 .42 7 ABB004 1899 2009 .73 .73 .76 .68 .62 8 ABB003 1859 2009 .67 .82 .72 .73 .75 .73 9 ABB002 1851 2009 .70 .80 .72 .65 .60 .58 10 ABB001 1893 2009 .15B .16B .37 .55 .64 11 ABF010 1899 2009 -.11B-.09B .30B .42B .53 12 ABF009 1908 2009 .17B .42B .34B .41B 13 ABF008 1901 2009 .35B .40B .34B .46B 14 ABF007 1908 2009 .33B .45B .50B .54 15 ABF006 1958 2009 .52 .57 16 ABF005 1917 2009 .34B .44B .36B .36B 17 ABF004 1911 2009 .26B .34B .46B .55 18 ABF003 1877 2009 .08B .14B .37B .62 .65 19 ABF002 1960 2009 .21A 20 ABF001 1902 2009 .12B .28B .36B .34B 21 ABU009 1835 2009 .41 .55 .66 .56 .64 .73 .72 22 ABU008 1841 2009 .63 .72 .73 .72 .73 .53 .50 23 ABU007 1840 2009 .37 .60 .70 .66 .75 .68 .58 24 ABU006 1858 2009 .46 .64 .69 .66 .63 .74 25 ABU005 1864 2009 .56 .53 .48 .71 .36 .21B 26 ABU004 1881 2009 .27B .35B .70 .74 .61 27 ABU003 1884 2009 .32B .50 .65 .78 .84 28 ABU002 1847 2009 .31B .36B .43B .44 .62 .66 .64 29 ABU001 1853 2009 .36 .60 .70 .77 .80 .82 Av segment correlation .43 .53 .44 .43 .56 .56 .57 PART 7: DESCRIPTIVE STATISTICS: Alces Bluff 12:01 Wed 19 Sep 2012 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 ABB010 1885 2009 125 5 0 .426 1.00 1.72 .275 .568 .202 2.73 .461 -.010 1 2 ABB009 1875 2009 135 5 1 .320 1.00 1.96 .310 .661 .200 2.64 .445 -.040 2 3 ABB008 1885 2009 125 5 0 .572 1.00 2.59 .533 .734 .325 2.68 .485 -.011 1 4 ABB007 1884 2009 126 5 2 .493 .88 2.47 .599 .922 .210 2.52 .343 .029 1 5 ABB006 1855 2009 155 6 2 .440 .99 2.41 .424 .805 .208 2.64 .451 -.055 2 6 ABB005 1882 2009 128 5 1 .387 .94 2.26 .449 .786 .252 2.62 .559 -.064 1 7 ABB004 1899 2009 111 5 0 .685 .95 2.63 .539 .719 .322 2.46 .376 -.010 1 8 ABB003 1859 2009 151 6 0 .690 1.00 2.48 .379 .536 .289 2.79 .502 -.035 1 9 ABB002 1851 2009 159 6 0 .660 .99 1.92 .325 .347 .301 2.59 .397 -.005 1 10 ABB001 1893 2009 117 5 2 .405 .97 1.67 .339 .799 .190 2.40 .354 -.015 2 11 ABF010 1899 2009 111 5 4 .213 .96 3.20 .694 .750 .404 2.86 .541 .038 1 12 ABF009 1908 2009 102 4 4 .291 .97 2.36 .508 .645 .384 2.65 .460 -.052 1 13 ABF008 1901 2009 109 4 4 .363 .96 2.48 .454 .644 .316 2.57 .431 -.022 1 14 ABF007 1908 2009 102 4 3 .294 .96 2.84 .646 .747 .363 2.51 .343 -.057 1 15 ABF006 1958 2009 52 2 0 .545 .96 2.15 .555 .828 .255 2.85 .503 .061 2 16 ABF005 1917 2009 93 4 4 .342 .95 2.19 .464 .802 .240 2.64 .510 .022 1 17 ABF004 1911 2009 99 4 3 .405 .96 3.00 .543 .709 .306 2.67 .538 -.063 1 18 ABF003 1877 2009 133 5 3 .308 .99 2.82 .500 .612 .333 2.61 .536 -.060 1 19 ABF002 1960 2009 50 1 1 .210 .99 2.53 .496 .577 .355 2.46 .414 -.076 1 20 ABF001 1902 2009 108 4 4 .226 .95 2.25 .420 .706 .252 2.57 .444 .018 1 21 ABU009 1835 2009 175 7 0 .584 1.00 4.36 .508 .635 .303 2.66 .449 -.003 1 22 ABU008 1841 2009 169 7 0 .637 1.00 2.12 .400 .620 .295 2.64 .381 .025 1 23 ABU007 1840 2009 170 7 0 .556 1.00 2.36 .458 .690 .276 2.71 .459 -.016 1 24 ABU006 1858 2009 152 6 0 .624 .99 2.49 .416 .703 .253 2.57 .443 -.006 1 25 ABU005 1864 2009 146 6 1 .444 .99 2.78 .584 .669 .367 2.58 .386 -.013 1 26 ABU004 1881 2009 129 5 2 .446 1.00 2.39 .568 .748 .322 2.55 .410 .017 1 27 ABU003 1884 2009 126 5 1 .573 .92 2.63 .568 .770 .367 2.63 .524 .000 1 28 ABU002 1847 2009 163 7 3 .489 .97 3.80 .654 .781 .309 2.81 .455 -.009 2 29 ABU001 1853 2009 157 6 0 .636 .99 3.26 .654 .738 .321 2.64 .494 -.024 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3678 146 45 .476 .98 4.36 .488 .693 .292 2.86 .450 -.015