White Spruce Upland LALA, Churchill, Manitoba, Canada - cana271 Additional Site Information Steven D. Mamet and G. Peter Kershaw Purpose of Collection: Age structure and dendroclimatological analysis Cores stored at: Stored in the Department of Earth and Atmospheric Sciences at the University of Alberta, Edmonton, Alberta, Canada. Email Steven Mamet (smamet@ualberta.ca) for availability NOTES: During 2003 an upland site, dominated by Picea glauca and Larix laricina, was cored for the purpose of age structure and dendroclimatological analysis. Within a 100 x 100 m quadrat, 9 randomly selected trees were cored in 9 randomly-selected 20 x 20 m subplots. Cores were taken near the ground at a height of half the length of the increment borer (approximately 15 cm). The cores which date up to 2006 were sampled with the intent of extending the chronology to present. Measurements are in .rwl format. The naming convention for each sample is site-plot-tree-radii. For example, sample wsua1a would have been taken from the White Spruce Upland, first plot, first tree and first radii. Due to missing rings, some samples may have been separated into two different files and have a number suffix (e.g., wsua1a2). COFECHA output: Chronology file name : CANA271.CRN Measurement file name : CANA271.RWL Date checked : 11SEP08 Checked by : B. Bauer Beginning year : 1818 Ending year : 2003 Principal investigators: Steven D. Mamet G. Peter Kershaw Site name : White Spruce Upland, Churchill MB Site location : Canada Species information : LALA TAMARACK Latitude : 5837 Longitude : -09348 Elevation : 50M Series intercorrelation: 0.594 Avg mean sensitivity : 0.271 Avg standard deviation : 0.329 Avg autocorrelation : 0.694 Number dated series : 22 Segment length tested : 50 Number problem segments: 3 Pct problem segments : 4.05 PART 5: CORRELATION OF SERIES BY SEGMENTS: White Spruce Upland LALA 11:27 Thu 11 Sep 2008 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 1975 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 wsua1a 1922 2003 .56 .49 .64 .64 2 wsua1b 1922 2000 .56 .56 .56 .55 3 wsua6a 1913 2003 .68 .63 .74 .78 4 wsua6b 1913 2003 .66 .60 .58 .63 5 wsua6a 1923 2003 .40 .33B .53 .53 6 wsua6b 1923 2003 .43 .39 .51 .52 7 wsub8a 1941 2003 .66 .66 .64 8 wsub8b 1941 2003 .62 .59 .57 9 wsuc9a 1894 1981 .73 .81 .76 .70 10 wsuc9b 1894 1969 .81 .85 .77 11 wsud6b 1896 1992 .63 .69 .68 .57 12 wsud7a 1913 2003 .73 .62 .49 .50 13 wsud7b 1913 1990 .75 .72 .25B 14 wsuf6a 1918 2003 .48 .41 .47 .46 15 wsuf6b 1918 1991 .58 .51 .52 16 wsug4a 1818 1879 .59 .55 .49 17 wsug4b 1818 1901 .59 .55 .32A .35 18 wsug7b 1907 1987 .60 .62 .55 19 wsuh5a 1950 2003 .65 .66 20 wsuh5b 1950 2003 .62 .64 21 wsuj4a 1920 2003 .54 .58 .60 .59 22 wsuj4b 1920 1965 .42 Av segment correlation .59 .55 .40 .63 .61 .58 .57 .59 PART 7: DESCRIPTIVE STATISTICS: White Spruce Upland LALA 11:27 Thu 11 Sep 2008 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 wsua1a 1922 2003 82 4 0 .640 .68 1.95 .373 .824 .267 2.65 .462 -.065 1 2 wsua1b 1922 2000 79 4 0 .553 .36 .83 .196 .866 .240 2.69 .514 -.031 2 3 wsua6a 1913 2003 91 4 0 .734 .73 1.83 .357 .709 .306 2.87 .573 -.043 1 4 wsua6b 1913 2003 91 4 0 .675 .83 1.97 .411 .762 .275 2.78 .518 .004 1 5 wsua6a 1923 2003 81 4 1 .489 .55 1.44 .190 .656 .201 2.43 .341 -.064 1 6 wsua6b 1923 2003 81 4 0 .495 .60 1.63 .249 .808 .195 2.53 .417 -.058 1 7 wsub8a 1941 2003 63 3 0 .667 .83 1.47 .286 .404 .306 2.73 .670 -.062 1 8 wsub8b 1941 2003 63 3 0 .628 1.14 2.12 .371 .322 .279 2.80 .567 -.020 1 9 wsuc9a 1894 1981 88 4 0 .700 .62 1.39 .320 .724 .293 2.65 .512 -.075 2 10 wsuc9b 1894 1969 76 3 0 .776 .66 1.56 .349 .722 .341 2.75 .528 -.112 1 11 wsud6b 1896 1992 97 4 0 .603 .76 1.87 .382 .732 .290 2.60 .485 -.014 1 12 wsud7a 1913 2003 91 4 0 .623 .89 1.74 .298 .521 .248 2.64 .476 -.065 1 13 wsud7b 1913 1990 78 3 1 .382 .83 1.70 .304 .600 .267 2.58 .419 -.087 1 14 wsuf6a 1918 2003 86 4 0 .562 .48 .97 .189 .565 .279 2.76 .534 -.052 1 15 wsuf6b 1918 1991 74 3 0 .560 .91 2.04 .443 .799 .254 2.66 .420 -.034 1 16 wsug4a 1818 1879 62 3 0 .544 .73 1.25 .208 .547 .207 2.60 .520 .027 1 17 wsug4b 1818 1901 84 4 1 .535 .56 1.20 .227 .727 .233 2.55 .453 .003 1 18 wsug7b 1907 1987 81 3 0 .567 .56 1.20 .274 .827 .253 2.58 .527 -.010 2 19 wsuh5a 1950 2003 54 2 0 .646 .92 2.38 .534 .766 .327 2.73 .581 -.038 1 20 wsuh5b 1950 2003 54 2 0 .620 1.09 2.61 .580 .811 .291 2.61 .506 -.021 1 21 wsuj4a 1920 2003 84 4 0 .568 .78 1.82 .445 .781 .326 2.60 .464 .012 1 22 wsuj4b 1920 1965 46 1 0 .424 .85 1.60 .397 .696 .317 2.57 .548 .217 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1686 74 3 .594 .73 2.61 .329 .694 .271 2.87 .497 -.032