Black Spruce Wetland PCMA, Churchill, Manitoba, Canada - cana272 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 2002 a wetland site near Churchill, MB, dominated by Picea mariana 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 a resampling with the intent of extending the chronology to present. Measurements are in .rwl format. The naming convention for each sample is site-tag number-radii. For example, sample bs465a would have been taken from the Black Spruce Wetland, tag #465 and first radii. Due to missing rings, some samples may have been separated into two different files and have a number suffix (e.g., bs465a2). COFECHA output: Chronology file name : CANA272.CRN Measurement file name : CANA272.RWL Date checked : 11SEP08 Checked by : B. Bauer Beginning year : 1716 Ending year : 2006 Principal investigators: Steven D. Mamet G. Peter Kershaw Site name : Black Spruce Wetland, Churchill MB Site location : Canada Species information : PCMA BLACK SPRUCE Latitude : 5837 Longitude : -09350 Elevation : 16M Series intercorrelation: 0.439 Avg mean sensitivity : 0.192 Avg standard deviation : 0.142 Avg autocorrelation : 0.824 Number dated series : 64 Segment length tested : 50 Number problem segments: 83 Pct problem segments : 26.52 PART 5: CORRELATION OF SERIES BY SEGMENTS: Black Spruce Wetland PCMA 11:29 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 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 bs464a 1880 2002 .40 .54 .68 .75 .71 2 bs464b 1899 2002 .54 .54 .64 .81 .82 3 bs469a 1870 1988 .36 .31A .40 .48 .44 4 bs469b 1870 1983 .28A .32A .30A .28A .40 5 bs470a 1884 2002 .53 .55 .64 .69 .65 6 bs470b 1884 2002 .44 .71 .57 .60 .62 7 bs472a1 1716 1882 .58 .52 .31A .30B .27B .13B .04B 8 bs472a 1885 1995 .49 .50 .50 .33A 9 bs472b 1721 1991 .60 .58 .58 .43 .44 .50 .51 .55 .54 .59 .38 10 bs476a 1930 2002 .36 .42 .40 11 bs476b 1900 1994 .47 .62 .51 12 bs480a1 1840 1968 .28A .34 .28A .32A .34 13 bs480a2 1970 2002 .63 14 bs481a 1924 2002 .71 .71 .71 .69 15 bs481b 1924 2002 .67 .70 .71 .66 16 bs482a 1882 2002 .51 .54 .52 .57 .63 17 bs482b 1882 1992 .63 .78 .47 .41 18 bs483a 1867 2002 .54 .53 .38 .21B .29A .27A 19 bs483b 1867 2002 .30A .32A .38 .37 .35 .33B 20 bs493a 1882 2002 .09B .25B .40B .44 .43 21 bs493b 1882 2002 .01B .03B .38 .51 .48 22 bs497a 1861 2002 .42 .58 .32A .05B .28A .32A 23 bs497b 1861 2002 .44 .60 .65 .45 .43 .55 24 bs498a 1763 2002 .38 .38 .27B .14B .33B .38 .35 .31B .36 .37 25 bs498b 1763 2002 .29B .26A .22B .28B .39 .27B .46 .52 .43 .35 26 bs569pma 1886 2002 .60 .62 .71 .77 .67 27 bs569pmb 1886 2002 .56 .51 .54 .66 .61 28 bs570a 1884 2002 .18B .42 .69 .79 .72 29 bs582a 1898 2002 .31B .32B .24B .41 .47 30 bs582b 1898 2002 .33 .47 .34 .54 .49 31 bs592a 1914 2002 .65 .70 .72 .61 32 bs592b 1914 2002 .62 .67 .68 .66 33 bs596a 1922 2002 .03B .25B .29B .27B 34 bs596b 1922 1959 .43 35 bs599a 1805 1906 .56 .46 .52 .49 36 bs599b 1805 1899 .52 .44 .36 37 bs605a 1869 2002 .27B .36 .50 .44 .22A .17B 38 bs605b 1869 1961 .46 .64 .76 .72 39 bs606a 1819 1944 .44 .49 .30A .34 .37 40 bs606b 1819 1979 .29A .23A .41 .50 .08B .16B .10B 41 bs607a 1823 1979 .52 .52 .37 .33 .58 .72 .60 42 bs607b 1823 1842 .73 43 bs608a 1861 2002 .49 .58 .55 .59 .56 .46 44 bs608b 1861 1991 .50 .46 .56 .64 .57 45 bs610b 1846 1967 .42 .39 .37 .16B .29B 46 bs612a 1887 1942 .64 .62 47 bs612b 1887 1974 .63 .75 .67 48 bs614a 1930 2002 .70 .74 .68 49 bs614b 1930 2002 .53 .65 .62 50 bsw1a 1887 2006 .59 .72 .71 .67 .39 51 bsw1b 1887 2006 .62 .67 .68 .64 .57 52 bsw3a 1879 2006 .09B .26B .39 .63 .65 53 bsw4a 1908 2006 -.19B-.12B .04B .14B 54 bsw4b 1908 2006 -.09B .04B .14B .15B 55 bsw5a 1909 2006 .43 .62 .75 .71 56 bsw7b 1827 2006 .26A .39 .59 .56 .52 .65 .68 57 bsw8a 1901 2006 .54 .50 .47 .54 58 bsw9a 1791 2006 .27A .32A .35 .30A .32A .52 .60 .50 .55 59 bsw10b 1862 2006 .52 .38 .44B .40 .44 .40 60 bsw11a 1870 2006 .44 .51 .41 .30A .33 .23B 61 bsw13a 1876 2006 -.13B .00B .08B .16B .26A 62 bsw14a 1945 2006 .68 .73 .69 63 bsw14b 1945 2006 .59 .61 .49 64 bsw15a 1860 2006 .11B .21A .39 .32B .42 .45 Av segment correlation .59 .55 .39 .33 .42 .35 .38 .41 .44 .48 .51 .50 PART 7: DESCRIPTIVE STATISTICS: Black Spruce Wetland PCMA 11:29 Thu 11 Sep 2008 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 bs464a 1880 2002 123 5 0 .649 .23 .44 .085 .681 .243 2.63 .434 -.063 1 2 bs464b 1899 2002 104 5 0 .676 .28 .49 .092 .683 .210 2.48 .437 -.054 1 3 bs469a 1870 1988 119 5 1 .378 .21 .42 .082 .832 .182 2.63 .504 .036 1 4 bs469b 1870 1983 114 5 4 .340 .23 .63 .096 .701 .221 3.02 .452 -.101 1 5 bs470a 1884 2002 119 5 0 .603 .17 .40 .079 .832 .214 2.43 .316 -.080 2 6 bs470b 1884 2002 119 5 0 .569 .30 .66 .157 .828 .257 2.63 .460 .034 1 7 bs472a1 1716 1882 167 7 5 .322 .12 .26 .047 .803 .208 2.49 .359 -.054 1 8 bs472a 1885 1995 111 4 1 .421 .27 .55 .115 .904 .148 2.54 .424 .027 1 9 bs472b 1721 1991 271 11 0 .489 .15 .47 .080 .923 .188 2.58 .424 -.025 1 10 bs476a 1930 2002 73 3 0 .368 .23 .44 .093 .874 .146 3.00 .571 -.001 1 11 bs476b 1900 1994 95 3 0 .485 .32 .74 .138 .809 .200 2.81 .480 -.059 1 12 bs480a1 1840 1968 129 5 3 .322 .72 1.57 .286 .878 .168 2.57 .469 .015 1 13 bs480a2 1970 2002 33 1 0 .629 .18 .60 .128 .702 .382 2.58 .552 -.114 2 14 bs481a 1924 2002 79 4 0 .725 .52 1.02 .205 .864 .165 2.42 .335 -.032 1 15 bs481b 1924 2002 79 4 0 .667 .37 .76 .168 .889 .171 2.52 .363 -.010 1 16 bs482a 1882 2002 121 5 0 .564 .45 1.26 .234 .853 .217 2.72 .462 .034 1 17 bs482b 1882 1992 111 4 0 .520 .36 .87 .202 .934 .162 2.77 .539 -.024 1 18 bs483a 1867 2002 136 6 3 .381 .26 .60 .110 .857 .172 2.88 .533 .001 1 19 bs483b 1867 2002 136 6 3 .349 .26 .74 .129 .888 .172 2.53 .401 -.066 1 20 bs493a 1882 2002 121 5 3 .271 .23 .70 .150 .931 .225 2.69 .428 -.138 1 21 bs493b 1882 2002 121 5 2 .220 .18 .56 .109 .855 .235 2.65 .458 -.054 1 22 bs497a 1861 2002 142 6 4 .324 .20 .51 .097 .897 .158 2.59 .447 -.065 1 23 bs497b 1861 2002 142 6 0 .504 .15 .37 .065 .808 .205 2.61 .465 -.018 1 24 bs498a 1763 2002 240 10 4 .318 .15 .42 .076 .862 .200 2.78 .389 .004 3 25 bs498b 1763 2002 240 10 5 .317 .25 1.26 .260 .921 .239 2.51 .297 -.020 1 26 bs569pma 1886 2002 117 5 0 .669 .41 1.12 .242 .936 .150 2.52 .394 -.031 1 27 bs569pmb 1886 2002 117 5 0 .591 .30 .54 .095 .831 .148 2.76 .481 -.028 1 28 bs570a 1884 2002 119 5 1 .525 .23 .75 .141 .882 .187 2.59 .381 -.072 1 29 bs582a 1898 2002 105 5 3 .339 .37 .74 .147 .847 .176 2.66 .397 .034 1 30 bs582b 1898 2002 105 5 0 .443 .46 .86 .154 .752 .178 2.84 .515 -.033 1 31 bs592a 1914 2002 89 4 0 .646 .49 .82 .144 .658 .193 2.56 .435 -.053 1 32 bs592b 1914 2002 89 4 0 .661 .46 .79 .116 .682 .174 2.55 .494 -.047 1 33 bs596a 1922 2002 81 4 4 .187 .53 1.06 .141 .600 .173 2.64 .414 -.065 3 34 bs596b 1922 1959 38 1 0 .433 .47 1.13 .171 .612 .197 2.73 .538 .035 1 35 bs599a 1805 1906 102 4 0 .491 .26 .88 .159 .898 .179 2.70 .421 .001 1 36 bs599b 1805 1899 95 3 0 .446 .22 .53 .104 .882 .160 2.76 .518 -.035 1 37 bs605a 1869 2002 134 6 3 .306 .28 .68 .114 .828 .168 2.90 .524 -.005 1 38 bs605b 1869 1961 93 4 0 .583 .34 .72 .119 .842 .156 2.66 .510 -.028 1 39 bs606a 1819 1944 126 5 1 .397 .30 .73 .127 .811 .189 2.83 .510 .052 1 40 bs606b 1819 1979 161 7 5 .293 .16 .54 .096 .918 .196 2.67 .399 -.007 1 41 bs607a 1823 1979 157 7 0 .500 .29 .65 .166 .914 .212 2.67 .380 -.034 1 42 bs607b 1823 1842 20 1 0 .727 .28 .37 .077 .548 .233 2.26 .519 -.033 1 43 bs608a 1861 2002 142 6 0 .535 .35 .83 .161 .891 .154 2.65 .441 -.065 1 44 bs608b 1861 1991 131 5 0 .564 .32 .83 .168 .895 .178 2.65 .404 -.079 1 45 bs610b 1846 1967 122 5 2 .281 .17 .55 .110 .921 .220 2.70 .432 -.005 2 46 bs612a 1887 1942 56 2 0 .602 .28 .45 .076 .611 .189 2.34 .351 -.048 1 47 bs612b 1887 1974 88 3 0 .639 .32 .58 .087 .577 .188 2.54 .399 -.065 1 48 bs614a 1930 2002 73 3 0 .676 .44 1.11 .183 .853 .180 2.58 .408 -.028 1 PART 7: DESCRIPTIVE STATISTICS: Black Spruce Wetland PCMA 11:29 Thu 11 Sep 2008 Page 10 ----------------------------------------------------------------------------------------------------------------------------------- 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 49 bs614b 1930 2002 73 3 0 .582 .42 1.07 .201 .918 .156 2.55 .395 -.057 1 50 bsw1a 1887 2006 120 5 0 .561 .32 .89 .156 .862 .196 2.64 .427 -.100 1 51 bsw1b 1887 2006 120 5 0 .616 .44 .95 .126 .500 .214 2.76 .359 -.041 2 52 bsw3a 1879 2006 128 5 2 .381 .49 1.02 .195 .791 .182 2.70 .432 -.008 2 53 bsw4a 1908 2006 99 4 4 -.063 .63 1.64 .258 .776 .188 2.60 .400 -.006 1 54 bsw4b 1908 2006 99 4 4 .040 .49 .88 .151 .762 .183 2.47 .351 -.051 1 55 bsw5a 1909 2006 98 4 0 .587 .47 .93 .216 .858 .182 2.72 .425 .000 1 56 bsw7b 1827 2006 180 7 1 .497 .35 .63 .130 .819 .187 2.65 .442 -.020 1 57 bsw8a 1901 2006 106 4 0 .505 .56 1.26 .204 .845 .161 2.55 .375 -.082 1 58 bsw9a 1791 2006 216 9 4 .393 .31 .88 .153 .843 .208 2.80 .421 -.011 1 59 bsw10b 1862 2006 145 6 1 .426 .30 .75 .122 .808 .166 2.81 .607 -.037 1 60 bsw11a 1870 2006 137 6 2 .357 .38 1.11 .171 .859 .162 2.95 .545 .008 1 61 bsw13a 1876 2006 131 5 5 .076 .34 .96 .133 .645 .264 2.72 .422 -.067 1 62 bsw14a 1945 2006 62 3 0 .630 .44 .77 .122 .596 .192 2.48 .423 -.057 1 63 bsw14b 1945 2006 62 3 0 .512 .51 .91 .142 .591 .193 2.81 .656 -.115 1 64 bsw15a 1860 2006 147 6 3 .313 .51 1.06 .231 .818 .229 2.63 .436 -.054 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 7528 313 83 .439 .32 1.64 .142 .824 .192 3.02 .436 -.031