Nutirwik Creek Floodplain, Alaska, USA - AK051 Additional Site Information Martin Wilmking Purpose of Collection: Ecology, Treeline response Measurement type: Total ring width Location of core material: Tree ring lab, University of Alaska Fairbanks, USA References: Wilmking M., Juday G.P., Barber V.A. and Zald H.S.J. 2004. Recent climate warming forces opposite growth responses of white spruce at treeline in Alaska through temperature thresholds. Global Change Biology 10(10): 1724-1736. Wilmking M., Juday G.P. 2005. Longitudinal variation of radial growth at Alaska's northern treeline - Recent changes and possible scenarios for the 21st century. Global and Planetary Change. (in press, online early) doi:10.1016/j.gloplacha.2004.10.017. COFECHA File_name Date Time_span Series Spline Seg Lag N_Seg Probs Prob% XCorr MnSens C/Var MnMsmt MnStDv MnACorr ak051.rwl 25May06 1828 2001 39 32 50 25 203 10 4.93 .591 .193 44.34 .806 .337 .788 Run FLOOD Title: Nutirwik Creek Floodplain PART 5: CORRELATION OF SERIES BY SEGMENTS: Nutirwik Creek Floodplain 10:47 Thu 25 May 2006 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 NCFL06-N 1828 2001 .23B .40 .56 .66 .62 .44 .50 2 NCFL10-N 1875 2001 .76 .84 .59 .50 .48 3 NCFL10-S 1875 2001 .82 .83 .59 .60 .64 4 NCFL11-A 1836 2001 .43 .52 .79 .73 .48 .27A .26A 5 NCFL11-B 1836 2001 .35 .39 .75 .78 .67 .68 .68 6 NCFL17-A 1910 2001 .55 .68 .77 .77 7 NCFL17-B 1910 2001 .62 .70 .82 .83 8 NCFL04-N 1877 2001 .65 .57 .56 .58 .63 9 NCFL04-S 1877 2001 .76 .66 .53 .57 .63 10 NCFL12-A 1909 2001 .51 .35 .46 .45 11 NCFL12-B 1909 2001 .52 .48 .59 .61 12 NCFL03-N 1848 2001 .66 .68 .71 .62 .40 .39 .48 13 NCFL03-S 1848 2001 .67 .68 .73 .72 .57 .60 .63 14 NCFL14-A 1925 2001 .52 .43 .41 15 NCFL14-B 1925 2001 .45 .47 .48 16 NCFL07-E 1868 2001 .55 .68 .72 .65 .45 .48 17 NCFL07-W 1868 2001 .55 .54 .54 .46 .63 .63 18 NCFL15-A 1880 2001 .63 .60 .47 .37 .45 19 NCFL15-B 1880 2000 .58 .61 .59 .54 .45 20 NCFL08-S 1905 2001 .49 .62 .67 .68 21 NCFL08-N 1905 2001 .61 .69 .63 .60 22 NCFL01-S 1856 2001 .73 .65 .71 .74 .68 .68 23 NCFL01-N 1856 2001 .72 .81 .84 .68 .40 .44 24 NCFL13-A 1920 2001 .36 .38 .47 .49 25 NCFL13-B 1920 2001 .27B .25B .25B .27B 26 NCFL19-A 1856 2001 .79 .80 .72 .66 .69 .70 27 NCFL19-B 1856 2001 .72 .75 .78 .71 .68 .68 28 NCFL16-A 1882 2001 .80 .76 .72 .76 .77 29 NCFL16-B 1882 2001 .87 .82 .58 .38 .42 30 NCFL18A 1851 2001 .36 .51 .57 .57 .66 .67 31 NCFL18B 1851 2001 .54 .59 .58 .61 .74 .71 32 NCFL02E 1885 2001 .73 .65 .62 .57 .59 33 NCFL02W 1885 2001 .63 .59 .59 .48 .41 34 NCFL09S 1854 2001 .47 .58 .60 .48 .60 .61 35 NCFL09N 1854 2001 .59 .60 .52 .47 .65 .67 36 NCFL05E 1888 2001 .55 .52 .63 .52 .57 37 NCFL05W 1888 2001 .38 .46 .69 .75 .79 38 NCFL20A 1899 2001 .43 .41 .22A .33B .33B 39 NCFL20B 1899 2001 .44 .39 .42 .59 .64 Av segment correlation .47 .58 .66 .61 .56 .56 .57 PART 7: DESCRIPTIVE STATISTICS: Nutirwik Creek Floodplain 10:47 Thu 25 May 2006 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 NCFL06-N 1828 2001 174 7 1 .484 .91 1.92 .418 .901 .163 2.80 .468 -.002 1 2 NCFL10-N 1875 2001 127 5 0 .655 .83 1.57 .274 .729 .184 2.74 .460 -.020 1 3 NCFL10-S 1875 2001 127 5 0 .722 .98 1.83 .295 .702 .178 2.74 .457 -.030 1 4 NCFL11-A 1836 2001 166 7 2 .507 .74 1.49 .298 .802 .187 2.93 .468 .011 1 5 NCFL11-B 1836 2001 166 7 0 .624 .63 1.50 .215 .771 .189 2.47 .326 -.008 1 6 NCFL17-A 1910 2001 92 4 0 .644 1.16 2.69 .524 .809 .217 2.70 .488 -.038 1 7 NCFL17-B 1910 2001 92 4 0 .705 1.22 3.00 .585 .806 .210 2.70 .421 .027 1 8 NCFL04-N 1877 2001 125 5 0 .576 1.00 2.18 .368 .817 .156 2.54 .331 -.021 1 9 NCFL04-S 1877 2001 125 5 0 .637 .92 1.86 .380 .813 .192 2.74 .409 -.009 1 10 NCFL12-A 1909 2001 93 4 0 .480 .71 1.69 .346 .787 .221 2.75 .533 -.007 2 11 NCFL12-B 1909 2001 93 4 0 .546 .60 1.28 .282 .817 .216 2.71 .469 .064 3 12 NCFL03-N 1848 2001 154 7 0 .590 .85 1.91 .348 .842 .161 3.05 .502 -.050 1 13 NCFL03-S 1848 2001 154 7 0 .666 .88 1.88 .357 .837 .174 2.51 .357 -.044 1 14 NCFL14-A 1925 2001 77 3 0 .480 .95 2.16 .506 .861 .219 2.61 .478 -.057 1 15 NCFL14-B 1925 2001 77 3 0 .503 .78 1.81 .407 .854 .214 2.50 .466 -.020 1 16 NCFL07-E 1868 2001 134 6 0 .582 .66 1.31 .285 .853 .181 2.74 .451 .007 1 17 NCFL07-W 1868 2001 134 6 0 .552 .57 1.06 .193 .765 .173 2.70 .509 -.064 1 18 NCFL15-A 1880 2001 122 5 0 .548 .79 2.03 .449 .894 .208 2.69 .524 .022 1 19 NCFL15-B 1880 2000 121 5 0 .536 .76 1.82 .414 .896 .182 2.83 .562 .020 1 20 NCFL08-S 1905 2001 97 4 0 .573 .79 1.45 .288 .723 .212 2.67 .521 -.003 1 21 NCFL08-N 1905 2001 97 4 0 .606 .77 1.46 .299 .764 .210 2.68 .439 -.031 1 22 NCFL01-S 1856 2001 146 6 0 .694 .88 1.96 .433 .882 .177 2.82 .485 .033 1 23 NCFL01-N 1856 2001 146 6 0 .674 .94 2.19 .450 .874 .185 2.77 .419 -.006 1 24 NCFL13-A 1920 2001 82 4 0 .444 .83 2.12 .491 .876 .227 2.84 .439 -.089 1 25 NCFL13-B 1920 2001 82 4 4 .293 .76 1.78 .384 .811 .226 2.68 .428 -.079 1 26 NCFL19-A 1856 2001 146 6 0 .736 .78 1.43 .260 .730 .199 2.67 .478 .030 1 27 NCFL19-B 1856 2001 146 6 0 .734 .75 1.56 .279 .755 .195 2.61 .416 .030 1 28 NCFL16-A 1882 2001 120 5 0 .763 .74 1.29 .214 .658 .185 2.70 .372 .052 1 29 NCFL16-B 1882 2001 120 5 0 .694 .57 1.33 .323 .877 .205 2.68 .357 -.026 1 30 NCFL18A 1851 2001 151 6 0 .532 .78 1.54 .221 .664 .171 2.86 .450 .046 1 31 NCFL18B 1851 2001 151 6 0 .601 .82 1.53 .243 .606 .200 2.68 .419 .009 1 32 NCFL02E 1885 2001 117 5 0 .642 .86 2.16 .387 .716 .218 2.81 .370 -.090 1 33 NCFL02W 1885 2001 117 5 0 .550 .81 1.71 .278 .596 .215 2.69 .423 -.047 1 34 NCFL09S 1854 2001 148 6 0 .574 .71 1.95 .431 .904 .210 2.55 .391 -.034 1 35 NCFL09N 1854 2001 148 6 0 .592 .62 1.78 .350 .869 .220 2.88 .401 -.030 1 36 NCFL05E 1888 2001 114 5 0 .547 .84 1.76 .278 .666 .196 2.80 .533 -.012 1 37 NCFL05W 1888 2001 114 5 0 .590 .72 1.31 .204 .519 .210 2.63 .425 .020 1 38 NCFL20A 1899 2001 103 5 3 .384 .88 1.66 .337 .860 .155 2.64 .420 -.059 1 39 NCFL20B 1899 2001 103 5 0 .498 .86 1.65 .322 .835 .179 2.61 .547 -.036 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4801 203 10 .591 .81 3.00 .337 .788 .193 3.05 .443 -.012