Grey Creek, British Columbia, Canada - CANA236 Additional Site Information Rob Wilson and Brian Luckman Purpose of Collection: Climatology - temperature analyses Measurement type: Total ring width Location of core material: Department of Geography, University of Western Ontario References: Wilson, R.J.S. and Luckman, B.H. 2002. Tree-ring reconstruction of maximum and minimum temperatures and the diurnal temperature range in British Columbia, Canada. Dendrochronologia, 20(3): 257-268. Wilson, R.J.S. and Luckman, B.H. 2003. Dendroclimatic Reconstruction of Maximum Summer Temperatures from Upper Tree-Line Sites in Interior British Columbia. The Holocene. 13(6): 853-863. Wilson, R., D’Arrigo. R., Buckley, B., Büntgen, U., Esper, J., Frank, D., Luckman, B., Payette, S. Vose, R. and Youngblut, D. In Press 2007. A matter of divergence – tracking recent warming at hemispheric scales using tree-ring data. Journal of Geophysical Research - Atmopsheres. VOL. 112, XXXXXX, doi:10.1029/2006JD008318 NOTES: Aspect: S Slope Angle: 30 Estimated Species Composition: 70% MH, 25% SF + C, 5% ES ES = Engelmann spruce; SF = Sub-alpine fir; WP = Whitebark pine; AL = Alpine larch; C = Western red cedar; MH = Mountain hemlock; LP = Lodgepole pine Site Information: Relatively dense canopy. Damp site. COFECHA output: Chronology file name : N/A Measurement file name : CANA236.RWL Date checked : 17JUL07 Checked by : B. Bauer Beginning year : 1789 Ending year : 1997 Principal investigators: Rob Wilson Brian Luckman Site name : Grey Creek Site location : Canada Species information : PCEN ENGELMANN SPRUCE Latitude : 4937 Longitude : -11639 Elevation : 2000M Series intercorrelation: 0.636 Avg mean sensitivity : 0.204 Avg standard deviation : 0.455 Avg autocorrelation : 0.702 Number dated series : 20 Segment length tested : 50 Number problem segments: 1 Pct problem segments : 1.01 PART 5: CORRELATION OF SERIES BY SEGMENTS: Grey Creek 10:26 Tue 17 Jul 2007 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 1800 1825 1850 1875 1900 1925 1950 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 G9801N 1879 1997 .48 .67 .61 .45 2 G9801S 1875 1997 .32A .61 .70 .70 3 G9803N 1872 1997 .50 .50 .65 .70 .73 4 G9803W 1863 1997 .49 .66 .65 .72 .74 5 G9804E 1879 1997 .62 .71 .81 .74 6 G9804W 1879 1997 .67 .64 .57 .58 7 G9811S 1913 1997 .75 .78 .73 8 G9811W 1892 1997 .39 .55 .70 .67 9 G9812S 1860 1997 .51 .58 .69 .70 .77 10 G9812E 1858 1994 .58 .60 .69 .67 .71 11 G9821NW 1835 1970 .69 .56 .45 .43 .47 12 G9822N 1789 1997 .75 .74 .45 .64 .79 .69 .74 13 G9822S 1823 1997 .63 .60 .48 .59 .70 .69 .73 14 G9823N 1847 1997 .38 .45 .44 .66 .86 .83 15 G9823NW 1809 1997 .44 .39 .37 .39 .62 .74 .71 16 G9823SE 1809 1997 .55 .64 .38 .55 .55 .61 .69 17 G9825W 1871 1997 .64 .64 .53 .68 .85 18 G9825S 1873 1997 .52 .54 .61 .73 .79 19 G9826S 1894 1997 .72 .71 .84 .78 20 G9826W 1901 1997 .72 .86 .77 Av segment correlation .59 .57 .50 .54 .65 .71 .72 PART 7: DESCRIPTIVE STATISTICS: Grey Creek 10:26 Tue 17 Jul 2007 Page 6 ----------------------------------------------------------------------------------------------------------------------------------- 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 G9801N 1879 1997 119 4 0 .517 1.76 4.17 .477 .636 .171 2.68 .466 -.020 1 2 G9801S 1875 1997 123 4 1 .604 1.38 2.32 .343 .634 .165 2.58 .374 -.015 1 3 G9803N 1872 1997 126 5 0 .632 1.54 3.17 .578 .822 .200 2.72 .512 .040 1 4 G9803W 1863 1997 135 5 0 .639 1.89 3.71 .753 .820 .216 2.65 .475 -.015 1 5 G9804E 1879 1997 119 4 0 .711 1.28 2.21 .417 .822 .170 2.62 .411 -.026 1 6 G9804W 1879 1997 119 4 0 .604 1.20 2.02 .411 .832 .162 2.64 .550 -.036 1 7 G9811S 1913 1997 85 3 0 .742 2.15 3.23 .502 .676 .160 2.57 .543 .036 1 8 G9811W 1892 1997 106 4 0 .578 2.26 3.47 .591 .699 .166 2.59 .486 .022 1 9 G9812S 1860 1997 138 5 0 .665 1.14 2.09 .377 .765 .181 2.57 .412 -.007 1 10 G9812E 1858 1994 137 5 0 .657 1.37 2.41 .437 .809 .164 2.36 .293 -.005 1 11 G9821NW 1835 1970 136 5 0 .543 .76 1.46 .305 .779 .219 2.71 .509 .002 1 12 G9822N 1789 1997 209 7 0 .699 1.31 2.90 .449 .651 .221 2.76 .472 -.014 1 13 G9822S 1823 1997 175 7 0 .651 1.39 2.48 .509 .617 .254 2.58 .407 .000 1 14 G9823N 1847 1997 151 6 0 .652 1.37 3.22 .641 .889 .192 2.61 .394 .027 1 15 G9823NW 1809 1997 189 7 0 .546 1.07 2.34 .461 .847 .214 2.67 .391 -.013 2 16 G9823SE 1809 1997 189 7 0 .572 .50 1.24 .194 .693 .233 2.54 .375 -.002 1 17 G9825W 1871 1997 127 5 0 .645 1.39 2.42 .371 .391 .244 2.35 .323 -.004 1 18 G9825S 1873 1997 125 5 0 .668 1.46 2.42 .419 .471 .249 2.46 .389 -.001 1 19 G9826S 1894 1997 104 4 0 .756 1.50 2.63 .427 .537 .203 2.76 .517 .118 1 20 G9826W 1901 1997 97 3 0 .742 1.98 3.48 .575 .495 .224 2.67 .490 .075 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2709 99 1 .636 1.37 4.17 .455 .702 .204 2.76 .433 .005