Lower Joffre, British Columbia, Canada - CANA641 Additional Site Information B. Coulthard B. Brice I. Homfeld L. Dye K. Anchukaitis Reference: Becky L. Brice, Bethany Lynn Coulthard, Inga K. Homfeld, Laura Dye, and Kevin J. Anchukaitis. 2021. Paleohydrological context for recent floods and droughts in the Fraser River Basin, British Columbia, Canada. Environmental Research Letters. doi: 10.1088/1748-9326/ac3daf Funding: US National Science Foundation AGS-1803995 COFECHA output: Chronology file name : CANA641.CRN Measurement file name : CANA641.RWL Date checked : 30NOV21 Checked by : B. Bauer Beginning year : 1687 Ending year : 2018 Principal investigators: B. Coulthard B. Brice I. Homfeld L. Dye K. Anchukaitis Site name : Lower Joffre Site location : Canada Species information : TSME MOUNTAIN HEMLOCK Latitude : 5036 Longitude : -12249 Elevation : 1345M Series intercorrelation: 0.537 Avg mean sensitivity : 0.181 Avg standard deviation : 0.659 Avg autocorrelation : 0.822 Number dated series : 21 Segment length tested : 50 Number problem segments: 25 Pct problem segments : 10.59 PART 5: CORRELATION OF SERIES BY SEGMENTS: Lower Joffre 17:23 Tue 30 Nov 2021 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 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 LJO01A 1751 2018 .66 .70 .59 .58 .62 .59 .55 .57 .67 .71 2 LJO01B 1760 2018 .74 .62 .42 .43 .56 .65 .37B .38 .66 .62 3 LJO02A 1744 2018 .69 .71 .80 .72 .47 .47 .49 .45 .53 .69 .73 4 LJO03A 1720 2018 .74 .78 .83 .71 .57 .59 .68 .65 .73 .78 .60 .39 5 LJO03B 1705 2018 .57 .83 .73 .39B .45 .59 .65 .65 .57 .61 .69 .61 6 LJO04A 1720 2018 .42 .40 .71 .57 .42 .53 .62 .46 .31B .27A .45 .53 7 LJO04B 1724 2018 .43 .41 .51 .51 .44 .35 .29B .47 .47 .40 .40 .45 8 LJO05A 1701 2018 .52 .59 .71 .63 .60 .63 .73 .84 .76 .56 .51 .48 9 LJO05B 1712 2018 .53 .56 .57 .37 .29A .31B .53 .74 .67 .63 .61 .60 10 LJO06A 1733 2018 .75 .78 .49 .44 .44 .25B .34 .56 .64 .65 .62 11 LJO06B 1687 2018 .27B .63 .75 .61 .53 .47 .66 .74 .59 .22B .30A .37 12 LJO07A 1721 2018 .36 .39 .32A .48 .46 .41 .48 .53 .56 .59 .62 .54 13 LJO07B 1707 2018 .45 .57 .41 .38 .65 .44 .30A .40 .51 .52 .58 .53 14 LJO08A 1771 2018 .52 .40 .46 .68 .69 .61 .48 .43 .51 .32A 15 LJO08B 1769 2018 .66 .67 .68 .68 .65 .56 .48 .61 .63 .60 16 LJO09A 1706 2018 .54 .72 .75 .58 .55 .55 .58 .65 .69 .63 .65 .56 17 LJO09B 1804 2018 .76 .80 .79 .73 .58 .46 .63 .45 18 LJO10A 1722 2018 .56 .55 .45 .24A .19B-.18B-.19B .26B .32A .30B .44 .48 19 LJO10B 1711 2018 .61 .44 .32A .40 .51 .30A .05B .19A .43 .35 .50 .46 20 LJO11A 1763 2018 .63 .72 .70 .68 .76 .70 .68 .72 .71 .73 21 LJO11B 1723 2018 .66 .67 .77 .77 .69 .52 .72 .74 .62 .53 .64 .73 Av segment correlation .51 .60 .63 .55 .53 .49 .52 .57 .54 .51 .58 .55 PART 7: DESCRIPTIVE STATISTICS: Lower Joffre 17:23 Tue 30 Nov 2021 Page 9 ----------------------------------------------------------------------------------------------------------------------------------- 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 LJO01A 1751 2018 268 10 0 .626 .67 1.73 .361 .944 .144 2.65 .379 -.048 1 2 LJO01B 1760 2018 259 10 1 .539 .58 1.65 .295 .926 .156 2.70 .368 -.009 1 3 LJO02A 1744 2018 275 11 0 .611 .79 1.62 .253 .802 .156 2.67 .392 -.024 1 4 LJO03A 1720 2018 299 12 0 .641 .63 1.50 .283 .861 .185 2.65 .364 -.041 1 5 LJO03B 1705 2018 314 12 1 .581 .81 2.10 .299 .803 .183 2.48 .323 -.027 1 6 LJO04A 1720 2018 299 12 2 .459 .44 1.28 .233 .869 .197 2.57 .361 -.023 1 7 LJO04B 1724 2018 295 12 1 .434 .49 1.55 .287 .907 .191 2.46 .315 -.004 2 8 LJO05A 1701 2018 318 12 0 .617 .63 1.90 .192 .687 .177 2.63 .417 -.015 1 9 LJO05B 1712 2018 307 12 2 .521 .70 1.75 .237 .708 .190 2.60 .364 -.006 1 10 LJO06A 1733 2018 286 11 1 .547 .63 1.76 .249 .878 .149 2.68 .375 -.036 1 11 LJO06B 1687 2018 332 12 3 .522 .52 1.89 .269 .897 .176 2.66 .378 -.021 1 12 LJO07A 1721 2018 298 12 1 .476 .71 1.69 .312 .871 .170 2.60 .385 -.033 1 13 LJO07B 1707 2018 312 12 1 .479 .45 2.05 .236 .859 .203 2.46 .310 -.041 4 14 LJO08A 1771 2018 248 10 1 .487 8.35 17.65 4.268 .918 .175 2.70 .322 -.013 1 15 LJO08B 1769 2018 250 10 0 .609 3.89 11.32 1.616 .832 .188 2.79 .455 -.013 1 16 LJO09A 1706 2018 313 12 0 .603 .59 1.59 .258 .825 .210 2.39 .216 -.018 1 17 LJO09B 1804 2018 215 8 0 .639 .49 .91 .165 .672 .217 2.59 .308 -.010 5 18 LJO10A 1722 2018 297 12 7 .223 .68 2.36 .381 .920 .149 2.44 .216 -.030 5 19 LJO10B 1711 2018 308 12 4 .373 .70 2.02 .401 .932 .154 2.62 .412 -.015 1 20 LJO11A 1763 2018 256 10 0 .681 7.17 14.19 2.339 .634 .231 2.50 .347 -.071 1 21 LJO11B 1723 2018 296 12 0 .665 7.22 13.70 1.807 .487 .196 2.73 .450 -.031 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6045 236 25 .537 1.67 17.65 .659 .822 .181 2.79 .355 -.025