Meadow Mountain, British Columbia, Canada - CANA225 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., Buntgen, 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, D17103, doi:10.1029/2006JD008318 Wilson, R.J.S, Rao, R., Rydval, M., Wood, C., Larsson, L.-A. and Luckman, B.H. 2014. Blue Intensity for Dendroclimatology: The BC Blues: A Case Study from British Columbia Canada. The Holocene. 24 (11): 1428-1438. NOTES: Aspect: E Slope Angle: 0-40 Estimated Species Composition: 80% SF, 15% ES, 5% WP 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: Open tree-line site. Trees growing on slightly higher relief ridges where good drainage exists. Data collection updated 2016-02-10 to add Blue Intensity data, file cana226b.rwl. The Blue Intensity data were measured almost exactly from the same samples as the MXD data, although BI may not have been measured from all the samples due to discolouration issues. See Wilson et al. 2014 and Rydval et al. 2014 for additional information. BI measurment method As spruce does not express an obvious visible colour difference between the heartwood and sapwood, no pre-treatment (i.e. resin extraction) of the samples was made and the mounted cores were simply sanded up to 1200 grit grade. Residual wood dust was removed using compressed air. The scanner was calibrated using the SilverFast Auto IT8 Calibration procedure to the IT8 Calibration Target (IT8.7/2) printed on Kodak Professional Endura paper. All samples were scanned to 2400 DPI with the scanner covered by a box to minimise bias from external ambient light. The digital image of each sample was then imported into CooRecorder and the ring-boundaries marked and visually crossdated. BI data were then generated using frame dimensions (160-5-50-15) derived from experimentation with Scots pine (Rydval et al., 2014). The archived BI data are RAW measurments and have not been inverted. Rydval, M, Larsson, L-A, McGlynn, L, Gunnarson, BE, Loader, NJ, Young, GHF and Wilson, R. 2014. Blue intensity for dendroclimatology: Should we have the blues? Experiments from Scotland. Dendrochronologia. 32(3): 191-204. COFECHA output: Ringwidth Series Chronology file name : N/A Measurement file name : CANA225.RWL Date checked : 16JUL07 Checked by : B. Bauer Beginning year : 1669 Ending year : 1997 Principal investigators: Rob Wilson Brian Luckman Site name : Meadow Mountain Site location : Canada Species information : PCEN ENGELMANN SPRUCE Latitude : 5014 Longitude : -11705 Elevation : 2100M Series intercorrelation: 0.632 Avg mean sensitivity : 0.203 Avg standard deviation : 0.315 Avg autocorrelation : 0.731 Number dated series : 38 Segment length tested : 50 Number problem segments: 13 Pct problem segments : 4.09 PART 5: CORRELATION OF SERIES BY SEGMENTS: Meadow Mountain 14:32 Mon 16 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 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 M9801N 1780 1997 .35 .60 .74 .66 .61 .66 .83 .82 2 M9801W 1782 1997 .28A .59 .60 .41 .51 .76 .88 .86 3 M9802N 1776 1997 .54 .76 .72 .59 .51 .75 .84 .81 4 M9802N2 1785 1997 .73 .75 .63 .55 .58 .68 .77 .77 5 M9802SW 1810 1997 .78 .81 .66 .57 .66 .79 .79 6 M9803E 1834 1997 .74 .68 .65 .69 .71 .57 7 M9803E2 1865 1997 .64 .75 .77 .79 .62 8 M9803W 1687 1997 .50 .46 .52 .73 .86 .79 .80 .64 .66 .71 .67 .66 9 M9803W2 1694 1997 .08B .16B .41 .60 .78 .81 .85 .66 .67 .69 .73 .78 10 M9804E 1669 1997 .04B .19B .24B .20A .45 .69 .73 .57 .31A .48 .59 .63 11 M9804E2 1803 1997 .38 .54 .45 .39 .56 .64 .74 12 M9805N 1786 1997 .54 .68 .82 .75 .70 .63 .58 .56 13 M9805S 1806 1997 .70 .74 .69 .73 .69 .66 .66 14 M9806N 1707 1997 .60 .52 .61 .64 .66 .45 .30A .55 .60 .74 .79 15 M9806W 1692 1994 .54 .44 .52 .65 .65 .73 .50 .26A .33 .61 .73 .80 16 M9807SE 1796 1997 .56 .67 .57 .30B .44 .53 .45 .62 17 M9808N 1804 1997 .75 .82 .73 .74 .74 .77 .83 18 M9808N2 1803 1997 .77 .83 .68 .68 .75 .81 .83 19 M9808SW 1811 1997 .84 .85 .79 .76 .80 .83 .86 20 M9809NE 1702 1997 .68 .61 .54 .62 .64 .71 .72 .66 .70 .75 .72 21 M9809NW 1758 1997 .62 .68 .69 .75 .63 .62 .79 .80 .80 22 M9809W 1882 1997 .54 .58 .44 .49 23 M9811N 1793 1997 .59 .60 .66 .69 .73 .84 .81 .71 24 M9811S 1790 1997 .68 .66 .72 .57 .47 .53 .40 .45 25 M9813N 1782 1997 .55 .64 .72 .67 .67 .77 .71 .75 26 M9813SW 1776 1895 .46 .63 .71 .67 27 M9815S 1731 1997 .38 .52 .56 .67 .87 .80 .77 .77 .70 .73 28 M9815SW 1754 1997 .66 .68 .75 .85 .78 .75 .77 .69 .75 29 M9815E 1751 1997 .51 .71 .70 .83 .69 .74 .79 .77 .83 30 M9817N 1830 1997 .52 .40 .48 .68 .73 .75 31 M9817W 1789 1997 .49 .55 .58 .46 .43 .49 .63 .79 32 M9819N 1764 1996 .56 .54 .53 .54 .49 .59 .72 .66 .53 33 M9819W 1790 1997 .65 .61 .50 .24B .42 .45 .64 .65 34 M9820N 1823 1997 .56 .56 .67 .64 .58 .64 .58 35 M9820NW 1825 1997 .54 .34 .31A .59 .71 .65 36 M9821NE 1685 1997 .46 .62 .62 .63 .63 .74 .78 .65 .52 .52 .54 .60 37 M9821NW 1702 1997 .59 .57 .61 .61 .75 .85 .76 .64 .58 .66 .69 38 M9821W 1724 1997 .66 .66 .69 .76 .81 .82 .66 .55 .68 .75 .78 Av segment correlation .32 .49 .51 .58 .60 .68 .70 .59 .59 .66 .70 .71 PART 7: DESCRIPTIVE STATISTICS: Meadow Mountain 14:32 Mon 16 Jul 2007 Page 7 ----------------------------------------------------------------------------------------------------------------------------------- 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 M9801N 1780 1997 218 8 0 .659 .95 1.91 .282 .656 .199 2.63 .380 -.009 1 2 M9801W 1782 1997 216 8 1 .602 1.11 2.35 .298 .566 .201 2.75 .498 -.017 2 3 M9802N 1776 1997 222 8 0 .673 .91 1.64 .235 .645 .171 2.73 .446 -.060 1 4 M9802N2 1785 1997 213 8 0 .682 .91 1.69 .239 .645 .170 2.71 .491 -.084 1 5 M9802SW 1810 1997 188 7 0 .724 .85 1.41 .201 .545 .182 2.50 .412 -.073 1 6 M9803E 1834 1997 164 6 0 .667 .76 2.49 .442 .861 .202 2.70 .528 .003 1 7 M9803E2 1865 1997 133 5 0 .678 .47 1.56 .274 .882 .215 2.71 .487 -.022 1 8 M9803W 1687 1997 311 12 0 .664 .65 1.75 .337 .839 .237 2.68 .381 -.013 1 9 M9803W2 1694 1997 304 12 2 .607 .65 1.75 .362 .859 .234 2.61 .348 -.020 1 10 M9804E 1669 1997 329 12 5 .446 .52 1.03 .165 .781 .169 2.61 .309 -.065 1 11 M9804E2 1803 1997 195 7 0 .514 .45 .89 .137 .755 .170 2.82 .433 -.047 1 12 M9805N 1786 1997 212 8 0 .647 .71 1.62 .290 .827 .199 2.62 .405 .012 1 13 M9805S 1806 1997 192 7 0 .673 .79 1.58 .240 .624 .208 2.80 .418 -.021 1 14 M9806N 1707 1997 291 11 1 .584 .53 1.23 .242 .869 .200 2.55 .399 -.024 2 15 M9806W 1692 1994 303 12 1 .531 .55 1.07 .160 .633 .197 2.65 .278 -.052 1 16 M9807SE 1796 1997 202 8 1 .513 1.25 2.82 .391 .620 .222 2.40 .265 -.040 1 17 M9808N 1804 1997 194 7 0 .763 .91 1.77 .297 .775 .168 2.52 .367 .033 1 18 M9808N2 1803 1997 195 7 0 .752 .92 1.74 .296 .790 .165 2.52 .346 .019 1 19 M9808SW 1811 1997 187 7 0 .819 .81 1.67 .293 .791 .175 2.74 .432 -.056 1 20 M9809NE 1702 1997 296 11 0 .657 .86 2.97 .408 .802 .199 2.86 .423 -.035 3 21 M9809NW 1758 1997 240 9 0 .718 1.06 3.08 .549 .866 .190 2.70 .414 -.038 1 22 M9809W 1882 1997 116 4 0 .505 .96 1.64 .219 .447 .204 2.60 .512 -.037 1 23 M9811N 1793 1997 205 8 0 .686 .79 1.60 .235 .584 .224 2.48 .378 -.021 1 24 M9811S 1790 1997 208 8 0 .569 .55 1.23 .205 .817 .176 2.53 .345 -.043 3 25 M9813N 1782 1997 216 8 0 .680 1.15 2.38 .405 .734 .201 2.52 .334 -.060 1 26 M9813SW 1776 1895 120 4 0 .575 1.51 2.76 .375 .462 .195 2.64 .355 .017 1 27 M9815S 1731 1997 267 10 0 .661 .67 1.41 .232 .707 .218 2.49 .301 -.039 1 28 M9815SW 1754 1997 244 9 0 .733 .55 1.33 .244 .788 .231 2.52 .333 -.023 1 29 M9815E 1751 1997 247 9 0 .699 .90 2.07 .375 .771 .220 2.80 .442 -.004 2 30 M9817N 1830 1997 168 6 0 .583 1.39 2.63 .445 .554 .255 2.68 .408 -.004 1 31 M9817W 1789 1997 209 8 0 .572 .81 1.64 .280 .649 .230 2.71 .432 -.034 3 32 M9819N 1764 1996 233 9 0 .575 .92 1.60 .271 .608 .201 2.56 .330 -.035 1 33 M9819W 1790 1997 208 8 1 .527 .67 1.42 .248 .820 .178 2.60 .379 -.069 3 34 M9820N 1823 1997 175 7 0 .576 1.20 3.20 .635 .852 .212 2.82 .419 -.019 1 35 M9820NW 1825 1997 173 6 1 .542 1.20 2.45 .396 .695 .200 2.69 .417 -.029 1 36 M9821NE 1685 1997 313 12 0 .603 .98 2.66 .416 .757 .218 2.45 .371 -.003 5 37 M9821NW 1702 1997 296 11 0 .664 .97 2.23 .375 .681 .220 2.55 .290 -.006 1 38 M9821W 1724 1997 274 11 0 .719 .96 2.76 .494 .820 .227 2.57 .345 -.039 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 8477 318 13 .632 .84 3.20 .315 .731 .203 2.86 .383 -.029 Maximum Density Series: Chronology file name : CANA225X.CRN Measurement file name : CANA225X.RWL Date checked : 16JUL07 Checked by : B. Bauer Beginning year : 1685 Ending year : 1997 Principal investigators: Rob Wilson Brian Luckman Site name : Meadow Mountain Site location : Canada Species information : PCEN ENGELMANN SPRUCE Latitude : 5014 Longitude : -11705 Elevation : 2100M Series intercorrelation: 0.744 Avg mean sensitivity : 0.120 Avg standard deviation : 0.137 Avg autocorrelation : 0.487 Number dated series : 26 Segment length tested : 50 Number problem segments: 7 Pct problem segments : 3.07 PART 5: CORRELATION OF SERIES BY SEGMENTS: Meadow Mountain MaxDens 14:42 Mon 16 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 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 M9801N 1780 1997 .64 .57 .40 .80 .86 .86 .84 .88 2 M9801W 1782 1997 .77 .78 .64 .85 .92 .89 .90 .92 3 M9802N 1776 1997 .79 .78 .74 .82 .77 .75 .91 .92 4 M9802NE 1785 1997 .88 .88 .67 .82 .92 .86 .86 .88 5 M9802SW 1810 1987 .80 .78 .89 .87 .75 .78 .77 6 M9803NW 1694 1997 .39 .30A .65 .82 .89 .86 .75 .79 .78 .62 .75 .91 7 M9803E 1834 1997 .87 .84 .83 .74 .82 .85 8 M9803W 1687 1997 .54 .56 .71 .85 .83 .85 .71 .77 .84 .74 .84 .88 9 M9805S 1806 1997 .77 .77 .90 .85 .70 .78 .73 10 M9806N 1707 1997 .76 .72 .60 .71 .56 .32A .48 .53 .63 .80 .71 11 M9806W 1692 1994 .64 .71 .73 .68 .76 .71 .28B .23B .52 .66 .81 .88 12 M9807SE 1796 1997 .56 .58 .19B .46 .53 .28A .54 .72 13 M9811N 1793 1997 .82 .74 .53 .45 .59 .56 .50 .68 14 M9811S 1790 1997 .87 .85 .66 .82 .92 .88 .84 .74 15 M9813N 1782 1997 .68 .73 .71 .71 .78 .81 .84 .88 16 M9815S 1731 1997 .75 .77 .83 .78 .72 .81 .87 .60 .55 .80 17 M9815SW 1754 1997 .84 .87 .92 .86 .87 .84 .59 .60 .86 18 M9817N 1830 1997 .59 .77 .89 .85 .84 .89 19 M9817W 1789 1997 .61 .61 .65 .74 .81 .74 .74 .85 20 M9819N 1764 1996 .43 .54 .61 .25A .40 .70 .72 .85 .88 21 M9819W 1790 1997 .78 .84 .78 .85 .88 .83 .85 .82 22 M9820N 1823 1997 .71 .73 .82 .88 .80 .73 .74 23 M9820NW 1825 1997 .66 .81 .84 .81 .83 .91 24 M9821NE 1685 1997 .62 .62 .73 .84 .86 .87 .82 .93 .95 .88 .86 .89 25 M9821NW 1702 1997 .81 .82 .69 .77 .86 .82 .90 .93 .91 .94 .92 26 M9821W 1724 1997 .73 .72 .78 .80 .88 .81 .78 .83 .80 .85 .93 Av segment correlation .55 .64 .73 .73 .76 .76 .64 .74 .80 .74 .79 .84 PART 7: DESCRIPTIVE STATISTICS: Meadow Mountain MaxDens 14:42 Mon 16 Jul 2007 Page 7 ----------------------------------------------------------------------------------------------------------------------------------- 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 M9801N 1780 1997 218 8 0 .742 .69 1.02 .117 .387 .153 2.67 .449 -.004 4 2 M9801W 1782 1997 216 8 0 .836 .97 1.31 .136 .521 .110 2.44 .377 .000 3 3 M9802N 1776 1997 222 8 0 .810 .84 1.06 .113 .241 .133 2.44 .366 -.008 1 4 M9802NE 1785 1997 213 8 0 .852 1.13 1.50 .174 .665 .105 2.38 .397 .031 1 5 M9802SW 1810 1987 178 7 0 .801 .66 .87 .091 .261 .132 2.39 .332 .035 2 6 M9803NW 1694 1997 304 12 1 .691 .80 1.43 .210 .847 .122 2.67 .374 -.006 1 7 M9803E 1834 1997 164 6 0 .806 .87 1.19 .140 .500 .133 2.50 .407 .006 1 8 M9803W 1687 1997 311 12 0 .749 .64 1.06 .167 .784 .142 2.49 .366 .014 1 9 M9805S 1806 1997 192 7 0 .780 1.01 1.35 .128 .470 .103 2.46 .399 -.021 1 10 M9806N 1707 1997 291 11 1 .620 1.06 1.38 .109 .483 .080 2.70 .359 -.034 1 11 M9806W 1692 1994 303 12 2 .593 .77 .93 .084 .326 .098 2.39 .262 -.018 1 12 M9807SE 1796 1997 202 8 2 .495 .96 1.42 .172 .600 .132 2.48 .379 -.005 1 13 M9811N 1793 1997 205 8 0 .600 1.10 1.35 .109 .441 .081 2.44 .330 -.045 1 14 M9811S 1790 1997 208 8 0 .815 1.01 1.25 .114 .231 .108 2.35 .310 -.008 1 15 M9813N 1782 1997 216 8 0 .756 1.07 1.33 .148 .372 .128 2.47 .426 .037 2 16 M9815S 1731 1997 267 10 0 .733 1.03 1.60 .192 .626 .134 2.40 .362 -.019 1 17 M9815SW 1754 1997 244 9 0 .802 .97 1.30 .147 .457 .127 2.41 .361 -.030 1 18 M9817N 1830 1997 168 6 0 .799 .84 1.13 .113 .222 .139 2.54 .457 -.027 1 19 M9817W 1789 1997 209 8 0 .712 .85 1.35 .181 .796 .112 2.43 .349 -.028 1 20 M9819N 1764 1996 233 9 1 .562 1.02 1.20 .098 .295 .089 2.32 .259 -.014 1 21 M9819W 1790 1997 208 8 0 .818 .92 1.20 .125 .260 .133 2.49 .411 -.002 1 22 M9820N 1823 1997 175 7 0 .771 .88 1.15 .115 .396 .112 2.44 .368 -.021 1 23 M9820NW 1825 1997 173 6 0 .805 1.00 1.24 .101 .329 .092 2.43 .330 .009 1 24 M9821NE 1685 1997 313 12 0 .816 .70 .98 .129 .403 .164 2.45 .366 -.019 2 25 M9821NW 1702 1997 296 11 0 .847 .91 1.28 .139 .542 .116 2.36 .306 -.020 1 26 M9821W 1724 1997 274 11 0 .807 .71 1.16 .164 .769 .131 2.59 .462 -.031 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6003 228 7 .744 .89 1.60 .137 .487 .120 2.70 .365 -.010