Agashashok Treeline, Alaska - AK148 Additional Site Information Patrick Sullivan Purpose of Collection: Ecology Cores are stored at: Sullivan Laboratory, University of Alaska Anchorage Notes: Reference: Sullivan, P.F., S.B.Z. Ellison, R.W. McNown, A.H. Brownlee, and B.Sveinbjornsson. 2015. Evidence of soil nutrient availability as the proximate constraint on growth of treeline trees in northwest Alaska. Ecology, DOI: 10.1890/14-0626.1 COFECHA output: Chronology file name : AK148.CRN Measurement file name : AK148.RWL Date checked : 05FEB15 Checked by : B. Bauer Beginning year : 1855 Ending year : 2012 Principal investigators: Patrick Sullivan Site name : Agashashok Treeline Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : 6729 Longitude : -16213 Elevation : 125M Series intercorrelation: 0.541 Avg mean sensitivity : 0.264 Avg standard deviation : 0.197 Avg autocorrelation : 0.710 Number dated series : 25 Segment length tested : 50 Number problem segments: 13 Pct problem segments : 14.13 PART 5: CORRELATION OF SERIES BY SEGMENTS: Agashashok Treeline 17:12 Thu 05 Feb 2015 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 1850 1875 1900 1925 1950 1975 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 AGGTRL1 1944 2012 .66 .60 .68 2 AGGTRL2 1937 2012 .73 .77 .72 3 AGGTRL3 1864 2012 -.14B .31A .56 .69 .72 .47 4 AGGTRL4 1855 2012 .14B .26B .21B .63 .69 .71 5 AGGTRL6 1867 2012 .38 .53 .49 .69 .74 .73 6 AGGTRL7 1953 2012 .37 .35 7 AGGTRL8 1939 2012 .05B .07B-.09B 8 AGGTRL9 1858 2012 -.05B .04B .05B .17B .42 .59 9 AGGTRL10 1937 2012 .66 .66 .60 10 AGGTRL11 1942 2012 .66 .70 .61 11 AGGTRL12 1898 2012 .43 .46 .53 .70 .77 12 AGGTRL13 1903 2012 .71 .68 .75 .73 13 AGGTRL14 1955 2012 .55 .63 14 AGGTRL15 1900 2012 .75 .67 .70 .72 15 AGGTRL16 1936 2012 .67 .83 .81 16 AGGTRL17 1954 2012 .74 .76 17 AGGTRL5 1952 2012 .62 .59 18 AGGTRL18 1917 2012 .36 .18B .41 .59 19 AGGTRL19 1877 2012 .67 .61 .69 .65 .42 20 AGGTRL20 1957 2012 .62 .69 21 AGGTRL21 1960 2012 .75 .76 22 AGGTRL22 1909 2012 .57 .52 .50 .55 23 AGGTRL23 1911 2012 .61 .55 .74 .71 24 AGGTRL24 1912 2012 .74 .66 .58 .56 25 AGGTRL25 1915 2012 .68 .59 .67 .60 Av segment correlation .08 .38 .52 .56 .62 .61 PART 7: DESCRIPTIVE STATISTICS: Agashashok Treeline 17:12 Thu 05 Feb 2015 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 AGGTRL1 1944 2012 69 3 0 .672 .56 1.34 .234 .694 .252 2.95 .613 -.012 1 2 AGGTRL2 1937 2012 76 3 0 .698 .42 .87 .157 .625 .263 2.80 .526 -.003 1 3 AGGTRL3 1864 2012 149 6 2 .339 .30 1.14 .145 .694 .272 2.69 .396 .022 2 4 AGGTRL4 1855 2012 158 6 3 .386 .34 1.03 .169 .662 .293 2.79 .476 -.054 1 5 AGGTRL6 1867 2012 146 6 0 .579 .38 1.20 .219 .784 .279 2.71 .476 -.023 1 6 AGGTRL7 1953 2012 60 2 0 .374 .56 1.02 .195 .785 .193 2.70 .516 .010 1 7 AGGTRL8 1939 2012 74 3 3 -.045 .37 1.02 .259 .879 .291 2.69 .485 -.138 1 8 AGGTRL9 1858 2012 155 6 4 .206 .18 .48 .106 .758 .291 2.63 .395 -.022 1 9 AGGTRL10 1937 2012 76 3 0 .613 .40 .97 .208 .846 .235 2.49 .378 -.055 1 10 AGGTRL11 1942 2012 71 3 0 .669 .57 .98 .170 .524 .231 2.59 .405 .014 1 11 AGGTRL12 1898 2012 115 5 0 .566 .31 .88 .214 .820 .317 2.62 .484 .035 2 12 AGGTRL13 1903 2012 110 4 0 .703 .38 .86 .156 .711 .230 2.84 .487 .023 1 13 AGGTRL14 1955 2012 58 2 0 .582 .85 1.56 .326 .719 .240 2.78 .582 -.094 2 14 AGGTRL15 1900 2012 113 4 0 .723 .43 .94 .165 .676 .260 2.54 .466 .034 1 15 AGGTRL16 1936 2012 77 3 0 .707 .58 .95 .174 .516 .248 2.64 .551 .057 1 16 AGGTRL17 1954 2012 59 2 0 .759 .65 1.03 .181 .291 .279 2.47 .498 .016 1 17 AGGTRL5 1952 2012 61 2 0 .549 .61 1.63 .396 .849 .273 2.74 .582 -.087 1 18 AGGTRL18 1917 2012 96 4 1 .446 .42 1.30 .268 .822 .251 2.79 .328 -.132 1 19 AGGTRL19 1877 2012 136 5 0 .590 .28 .98 .189 .843 .252 2.71 .471 .035 1 20 AGGTRL20 1957 2012 56 2 0 .654 .50 1.05 .171 .610 .250 2.81 .548 -.046 1 21 AGGTRL21 1960 2012 53 2 0 .745 .49 1.15 .218 .671 .267 2.56 .477 -.137 1 22 AGGTRL22 1909 2012 104 4 0 .558 .40 1.03 .200 .722 .294 2.50 .380 -.096 1 23 AGGTRL23 1911 2012 102 4 0 .638 .57 2.36 .324 .627 .275 2.79 .375 -.026 1 24 AGGTRL24 1912 2012 101 4 0 .648 .42 .99 .179 .758 .210 2.77 .573 .035 1 25 AGGTRL25 1915 2012 98 4 0 .647 .40 .75 .132 .597 .250 2.68 .484 .095 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2373 92 13 .541 .42 2.36 .197 .710 .264 2.95 .467 -.016