Idaho Lookout, British Columbia, Canada - CANA227 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: E/W Slope Angle: 30-40 Estimated Species Composition: 90% SF, 10% 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: Damp slopes. Dryer on western slope of ridge COFECHA output: Chronology file name : N/A Measurement file name : CANA227.RWL Date checked : 17JUL07 Checked by : B. Bauer Beginning year : 1731 Ending year : 1997 Principal investigators: Rob Wilson Brian Luckman Site name : Idaho Lookout Site location : Canada Species information : PCEN ENGELMANN SPRUCE Latitude : 4958 Longitude : -11718 Elevation : 2000M Series intercorrelation: 0.609 Avg mean sensitivity : 0.207 Avg standard deviation : 0.572 Avg autocorrelation : 0.765 Number dated series : 22 Segment length tested : 50 Number problem segments: 9 Pct problem segments : 7.20 PART 5: CORRELATION OF SERIES BY SEGMENTS: Idaho Lookout 10:37 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 I9802N 1891 1997 .03B .11B .53 .59 2 I9802NE 1894 1997 .33A .28A .44 .42 3 I9803S 1897 1997 .57 .55 .62 .62 4 I9803W 1864 1997 .09B .36 .47 .45 .65 5 I9806S 1767 1997 .68 .75 .84 .91 .72 .66 .65 .64 .68 6 I9806SW 1731 1997 .61 .69 .82 .89 .72 .56 .52 .71 .68 7 I9806W 1778 1997 .78 .82 .86 .69 .58 .64 .72 .73 8 I9807W 1892 1997 .16B .39 .67 .63 9 I9808W 1899 1997 .57 .55 .42 .60 10 I9809N 1891 1997 .62 .70 .69 .67 11 I9809W 1897 1997 .68 .68 .73 .77 12 I9810E 1895 1997 .32A .42 .61 .57 13 I9810W 1891 1997 .43 .49 .65 .53 14 I9811E 1795 1997 .72 .71 .80 .62 .64 .71 .76 .78 15 I9812E 1808 1997 .65 .62 .55 .70 .70 .51 .51 16 I9812W 1808 1978 .61 .69 .43 .56 .58 .58 .60 17 I9812SW 1786 1997 .45 .59 .66 .54 .52 .63 .72 .67 18 I9814N 1874 1997 .20B .21B .34 .69 .76 19 I9816S 1775 1997 .72 .72 .77 .67 .64 .67 .74 .64 20 I9816W 1807 1997 .73 .77 .62 .57 .73 .75 .66 21 I9818S 1878 1997 .41 .63 .67 .62 22 I9818E 1876 1997 .42 .65 .69 .64 Av segment correlation .65 .68 .72 .78 .53 .48 .55 .64 .64 PART 7: DESCRIPTIVE STATISTICS: Idaho Lookout 10:37 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 I9802N 1891 1997 107 4 2 .323 1.63 3.21 .724 .895 .160 2.42 .356 -.082 1 2 I9802NE 1894 1997 104 4 2 .370 2.06 4.50 .936 .910 .157 2.59 .500 .005 1 3 I9803S 1897 1997 101 4 0 .598 2.17 2.98 .359 .333 .155 2.67 .533 -.002 1 4 I9803W 1864 1997 134 5 1 .451 1.37 2.55 .390 .690 .174 2.63 .500 -.127 1 5 I9806S 1767 1997 231 9 0 .730 .91 2.21 .372 .801 .221 2.55 .418 -.066 1 6 I9806SW 1731 1997 267 9 0 .684 1.10 4.79 .610 .856 .231 2.63 .307 -.040 1 7 I9806W 1778 1997 220 8 0 .750 1.19 2.67 .322 .596 .188 2.60 .321 -.030 2 8 I9807W 1892 1997 106 4 1 .473 1.40 3.08 .679 .822 .234 2.43 .387 -.007 2 9 I9808W 1899 1997 99 4 0 .585 1.40 3.09 .647 .719 .235 2.67 .581 .076 1 10 I9809N 1891 1997 107 4 0 .669 1.46 2.44 .543 .823 .188 2.53 .385 .037 1 11 I9809W 1897 1997 101 4 0 .722 2.20 4.28 .673 .710 .194 2.65 .487 -.011 1 12 I9810E 1895 1997 103 4 1 .508 1.59 3.04 .579 .750 .191 3.07 .602 -.048 1 13 I9810W 1891 1997 107 4 0 .486 1.36 3.78 .883 .910 .233 2.79 .638 -.042 1 14 I9811E 1795 1997 203 8 0 .717 1.66 3.75 .580 .708 .212 2.50 .287 -.004 1 15 I9812E 1808 1997 190 7 0 .590 .91 2.38 .489 .873 .194 2.55 .326 -.029 1 16 I9812W 1808 1978 171 7 0 .598 .90 2.18 .398 .732 .240 2.67 .392 -.016 1 17 I9812SW 1786 1997 212 8 0 .570 .98 2.97 .597 .886 .223 2.67 .452 -.040 1 18 I9814N 1874 1997 124 5 2 .532 1.53 3.11 .780 .913 .186 2.55 .369 .023 1 19 I9816S 1775 1997 223 8 0 .685 1.59 4.01 .594 .692 .230 2.54 .289 -.007 1 20 I9816W 1807 1997 191 7 0 .690 1.84 3.98 .675 .617 .263 2.46 .318 -.040 1 21 I9818S 1878 1997 120 4 0 .581 1.67 3.58 .638 .823 .170 2.72 .442 -.037 1 22 I9818E 1876 1997 122 4 0 .581 1.90 3.04 .594 .791 .170 2.59 .476 -.005 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3343 125 9 .609 1.41 4.79 .572 .765 .207 3.07 .402 -.026