Salcha Bluff, Alaska - ak125 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 : AK125.CRN Measurement file name : AK125.RWL Date checked : 19SEP12 Checked by : B. Bauer Beginning year : 1890 Ending year : 2009 Principal investigators: Andrea Lloyd Daniel Mann Paul Duffy Site name : Salcha Bluff Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : 6429 Longitude : -14658 Elevation : 245M Series intercorrelation: 0.793 Avg mean sensitivity : 0.334 Avg standard deviation : 0.434 Avg autocorrelation : 0.510 Number dated series : 20 Segment length tested : 50 Number problem segments: 1 Pct problem segments : 1.72 PART 5: CORRELATION OF SERIES BY SEGMENTS: Salcha Bluff 12:03 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 1875 1900 1925 1950 1975 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 SBU001 1898 2009 .66 .66 .92 .94 .93 2 SBU002 1890 2009 .76 .83 .92 .89 .82 3 SBU003 1890 2009 .65 .66 .90 .92 .90 4 SBU004 1900 2009 .82 .94 .94 .93 5 SBU005 1891 2009 .67 .76 .87 .74 .55 6 SBU006 1918 2009 .93 .93 .87 .87 7 SBU007 1893 2009 .66 .73 .89 .87 .86 8 SBU008 1917 2009 .84 .88 .90 .89 9 SBU009 1909 2009 .54 .77 .81 .85 10 SBU010 1905 2009 .72 .87 .88 .88 11 SBF001 1975 2009 .84 12 SBF002 1950 2009 .47B .61 13 SBF003 1969 2009 .81 14 SBF004 1964 2009 .80 15 SBF005 1955 2008 .85 .83 16 SBF006 1950 2009 .86 .85 17 SBF007 1962 2009 .82 18 SBF008 1963 2009 .71 19 SBF009 1980 2009 .70 20 SBF010 1975 2009 .92 Av segment correlation .68 .75 .89 .83 .83 PART 7: DESCRIPTIVE STATISTICS: Salcha Bluff 12:03 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 SBU001 1898 2009 112 5 0 .829 1.00 1.88 .354 .480 .318 2.50 .465 .047 1 2 SBU002 1890 2009 120 5 0 .816 1.10 7.93 .811 .794 .269 2.62 .492 -.019 1 3 SBU003 1890 2009 120 5 0 .820 .99 2.26 .400 .619 .276 2.52 .456 .040 1 4 SBU004 1900 2009 110 4 0 .889 .99 2.03 .387 .468 .340 2.58 .558 .008 1 5 SBU005 1891 2009 119 5 0 .654 1.01 2.79 .427 .391 .376 2.66 .446 -.017 1 6 SBU006 1918 2009 92 4 0 .888 1.00 1.76 .324 .354 .324 2.45 .402 -.010 1 7 SBU007 1893 2009 117 5 0 .793 1.04 2.64 .465 .563 .326 2.58 .417 .027 2 8 SBU008 1917 2009 93 4 0 .859 1.00 2.04 .401 .489 .353 2.53 .410 -.060 1 9 SBU009 1909 2009 101 4 0 .682 1.00 1.69 .299 .416 .282 2.52 .458 -.006 1 10 SBU010 1905 2009 105 4 0 .817 .96 1.82 .396 .708 .269 2.41 .380 -.024 1 11 SBF001 1975 2009 35 1 0 .838 .99 2.16 .434 .277 .441 2.81 .751 .097 1 12 SBF002 1950 2009 60 2 1 .482 1.00 2.13 .491 .495 .416 2.62 .541 .048 1 13 SBF003 1969 2009 41 1 0 .808 1.00 2.03 .495 .562 .378 2.65 .636 .047 1 14 SBF004 1964 2009 46 1 0 .802 1.00 1.83 .390 .531 .290 2.59 .610 .049 2 15 SBF005 1955 2008 54 2 0 .852 1.00 2.78 .508 .596 .360 2.56 .465 -.041 1 16 SBF006 1950 2009 60 2 0 .849 1.00 1.72 .368 .245 .405 2.57 .611 -.051 2 17 SBF007 1962 2009 48 1 0 .816 1.00 1.98 .395 .384 .367 2.56 .620 .039 2 18 SBF008 1963 2009 47 1 0 .714 1.00 2.10 .434 .438 .446 2.61 .639 .017 3 19 SBF009 1980 2009 30 1 0 .695 1.00 1.75 .392 .448 .364 2.66 .604 -.018 2 20 SBF010 1975 2009 35 1 0 .918 1.00 2.14 .446 .573 .344 2.49 .557 .058 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1545 58 1 .793 1.01 7.93 .434 .510 .334 2.81 .494 .006