Black Spruce Wetland LALA, Churchill, Manitoba, Canada - cana273 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 : CANA273.CRN Measurement file name : CANA273.RWL Date checked : 11SEP08 Checked by : B. Bauer Beginning year : 1752 Ending year : 2006 Principal investigators: Steven D. Mamet G. Peter Kershaw Site name : Black Spruce Wetland, Churchill MB Site location : Canada Species information : LALA TAMARACK Latitude : 5837 Longitude : -09350 Elevation : 16M Series intercorrelation: 0.537 Avg mean sensitivity : 0.275 Avg standard deviation : 0.123 Avg autocorrelation : 0.669 Number dated series : 72 Segment length tested : 50 Number problem segments: 45 Pct problem segments : 14.47 PART 5: CORRELATION OF SERIES BY SEGMENTS: Black Spruce Wetland LALA 11:31 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 bs465a 1852 1997 .73 .79 .67 .38 .20B 2 bs465b 1848 1981 .65 .66 .72 .65 .38 .30A 3 bs466a 1896 2001 .60 .60 .81 .58 .56 4 bs466b 1896 1962 .40 .39 .47 5 bs468a 1864 1999 .62 .56 .66 .80 .63 6 bs468b 1864 1999 .70 .72 .59 .66 .66 7 bs475a1 1784 1867 .12B .21B .02B 8 bs475a 1867 1960 .41 .48 .46 .50 9 bs475a3 1962 2002 .39 10 bs475b1 1804 1917 .24A .19B .18B .13B 11 bs475b2 1917 1927 .25B 12 bs475b3 1931 2002 .15B .27A .33 13 bs479a 1791 2000 .42 .42 .63 .41 .36 .57 .51 .22B .20B 14 bs479b 1791 2000 .45 .44 .62 .65 .60 .64 .62 .27B .21B 15 bs487a 1846 1972 .47 .59 .54 .55 .44 16 bs487b 1846 1996 .47 .58 .59 .62 .41 .24A 17 bs490a 1878 1998 .31A .64 .58 .36 18 bs490b1 1868 1974 .66 .59 .62 .42 19 bs490b 1976 2001 .73 20 bs495a 1809 2002 .55 .73 .62 .58 .62 .26A .31B .32B 21 bs495a2 1752 1800 .45 22 bs495b 1826 2002 .57 .53 .57 .67 .68 .73 .71 23 bs495b2 1752 1781 .63 24 bs496a 1876 1982 .40 .58 .50 .31B 25 bs496b 1877 1965 .38 .46 .47 26 bs496b2 1967 2002 .57 27 bs500a 1910 2002 .73 .76 .82 .80 28 bs500b 1910 1998 .48 .58 .67 29 bs562a 1919 1996 .55 .64 .76 30 bs562b 1919 1981 .51 .60 .66 31 bs569a 1906 2002 .52 .47 .47 .52 32 bs569b 1906 2002 .62 .71 .67 .70 33 bs572a 1867 2000 .46 .62 .76 .80 .83 .82 34 bs572b 1866 2000 .53 .60 .78 .79 .82 .81 35 bs573b 1826 2001 .63 .61 .64 .72 .72 .54 .53 36 bs575a 1892 2002 .50 .54 .68 .80 .82 37 bs575b 1892 2002 .60 .60 .62 .57 .50 38 bs576a 1921 2002 .48 .51 .71 .74 39 bs576b 1926 2002 .62 .79 .81 40 bs578a 1926 2002 .49 .65 .68 41 bs578b 1926 1999 .63 .69 42 bs580a 1857 2001 .66 .63 .56 .63 .76 .75 43 bs580b 1857 2001 .71 .68 .65 .72 .76 .76 44 bs581a 1900 2001 .59 .68 .76 .74 45 bs581b 1900 1998 .48 .36 .65 46 bs583a 1847 2001 .73 .73 .70 .70 .90 .76 .75 47 bs583b 1847 2001 .70 .69 .73 .76 .66 .29B .26B 48 bs588a 1872 2001 .34 .37 .48 .50 .46 .46 49 bs588b 1872 2001 .54 .59 .55 .61 .56 .56 50 bs591a 1901 1999 .53 .73 .62 51 bs591b 1901 1991 .65 .65 .68 52 bs593a 1850 2000 .76 .60 .59 .60 .64 .62 53 bs593b 1850 2000 .73 .73 .77 .72 .73 .73 54 bs594a1 1846 1951 .66 .68 .77 .69 .68 55 bs594a2 1953 2002 .44 56 bs594b 1846 1921 .72 .74 .66 57 bs602a 1774 1969 .17B .13B .29B .66 .71 .67 .60 .60 58 bs602b 1774 1902 .22B .18B .50 .70 .59 .59 59 bs603a 1821 1971 .57 .56 .69 .79 .68 .64 60 bs603a2 1973 2002 .42 61 bs603b 1821 1971 .65 .68 .81 .78 .67 .72 62 bs603b2 1973 2002 .69 63 bs609a1 1906 1951 .51 64 bs609a2 1953 2002 .43 65 bs609b 1906 1959 .48 .49 66 bs611a1 1939 2002 .17B .25A .31A 67 bs611a2 1835 1938 .65 .56 .46 .34 68 bs611b 1835 2002 .59 .57 .54 .66 .66 .73 .67 69 bs613a 1817 1971 .25A .40 .56 .56 .64 .61 70 bs613b 1928 1998 .59 .55 71 bsw2a 1798 1986 .39 .39 .58 .18B-.13B-.07B .12B-.01B 72 bsw12a 1837 2006 .08B-.03B-.07B-.06B-.04B .24B .29A Av segment correlation .37 .28 .41 .55 .58 .55 .56 .57 .55 .59 PART 7: DESCRIPTIVE STATISTICS: Black Spruce Wetland LALA 11:31 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 bs465a 1852 1997 146 5 1 .489 .21 .53 .095 .652 .303 2.61 .467 -.031 1 2 bs465b 1848 1981 134 6 1 .493 .23 .70 .123 .741 .273 2.58 .391 -.033 1 3 bs466a 1896 2001 106 5 0 .594 .26 .57 .123 .797 .238 2.61 .407 -.026 1 4 bs466b 1896 1962 67 3 0 .444 .28 .50 .075 .511 .191 2.88 .554 -.045 1 5 bs468a 1864 1999 136 5 0 .643 .30 1.15 .143 .684 .264 2.69 .439 -.046 1 6 bs468b 1864 1999 136 5 0 .639 .24 .56 .106 .748 .254 2.48 .323 -.060 1 7 bs475a1 1784 1867 84 3 3 .083 .12 .29 .063 .701 .315 2.89 .602 .016 1 8 bs475a 1867 1960 94 4 0 .452 .13 .24 .046 .675 .236 2.66 .573 .019 1 9 bs475a3 1962 2002 41 1 0 .390 .10 .16 .027 .058 .313 2.51 .503 -.027 2 10 bs475b1 1804 1917 114 4 4 .191 .12 .33 .069 .846 .249 2.76 .513 -.008 2 11 bs475b2 1917 1927 11 1 1 .246 .16 .23 .039 -.458 .344 2.81 .943 -.136 1 12 bs475b3 1931 2002 72 3 2 .260 .15 .45 .065 .622 .277 2.52 .537 .015 4 13 bs479a 1791 2000 210 9 2 .410 .16 .54 .076 .717 .277 2.76 .440 -.055 2 14 bs479b 1791 2000 210 9 2 .498 .18 .80 .101 .685 .312 2.74 .492 .016 1 15 bs487a 1846 1972 127 5 0 .495 .22 .56 .106 .659 .269 2.60 .411 -.063 2 16 bs487b 1846 1996 151 6 1 .417 .18 .55 .102 .803 .255 2.60 .494 .003 1 17 bs490a 1878 1998 121 4 1 .412 .18 .42 .104 .807 .292 2.68 .529 .057 2 18 bs490b1 1868 1974 107 4 0 .514 .43 1.18 .280 .884 .301 2.69 .429 -.045 1 19 bs490b 1976 2001 26 1 0 .728 .16 .31 .067 .684 .305 2.52 .670 .231 1 20 bs495a 1809 2002 194 8 3 .502 .17 .45 .086 .682 .329 2.94 .528 .057 1 21 bs495a2 1752 1800 49 1 0 .451 .08 .18 .035 .458 .349 2.86 .653 -.026 2 22 bs495b 1826 2002 177 7 0 .621 .17 .48 .077 .527 .334 2.99 .494 -.014 1 23 bs495b2 1752 1781 30 1 0 .629 .09 .19 .038 .275 .368 2.83 .631 .008 1 24 bs496a 1876 1982 107 4 1 .381 .25 1.06 .218 .869 .282 2.71 .425 .023 2 25 bs496b 1877 1965 89 3 0 .449 .18 .67 .128 .806 .257 2.80 .457 .032 1 26 bs496b2 1967 2002 36 1 0 .569 .13 .26 .053 .428 .366 2.56 .549 -.073 1 27 bs500a 1910 2002 93 4 0 .767 .35 .62 .123 .617 .236 2.71 .537 .065 1 28 bs500b 1910 1998 89 3 0 .642 .33 .62 .098 .443 .235 2.63 .501 -.024 1 29 bs562a 1919 1996 78 3 0 .672 .51 1.15 .240 .727 .296 2.66 .470 -.029 3 30 bs562b 1919 1981 63 3 0 .627 .55 .96 .181 .458 .304 2.42 .383 -.037 1 31 bs569a 1906 2002 97 4 0 .518 .33 .86 .128 .541 .250 2.77 .431 -.074 5 32 bs569b 1906 2002 97 4 0 .664 .31 .89 .151 .701 .273 3.13 .534 .034 1 33 bs572a 1867 2000 134 6 0 .688 .35 .94 .203 .859 .272 2.77 .459 -.089 1 34 bs572b 1866 2000 135 6 0 .707 .28 .60 .136 .788 .252 2.55 .333 -.027 1 35 bs573b 1826 2001 176 7 0 .605 .33 .78 .159 .747 .301 2.71 .461 .021 1 36 bs575a 1892 2002 111 5 0 .683 .24 .60 .080 .595 .221 2.72 .471 -.053 1 37 bs575b 1892 2002 111 5 0 .554 .47 1.08 .176 .312 .298 2.82 .347 -.031 4 38 bs576a 1921 2002 82 4 0 .654 .36 1.06 .197 .787 .271 2.56 .468 .011 1 39 bs576b 1926 2002 77 3 0 .691 .27 .66 .119 .749 .242 2.54 .410 -.042 1 40 bs578a 1926 2002 77 3 0 .536 .30 .79 .119 .598 .263 2.56 .485 .039 2 41 bs578b 1926 1999 74 2 0 .640 .29 .90 .163 .877 .241 2.41 .333 -.069 1 42 bs580a 1857 2001 145 6 0 .679 .42 1.04 .231 .842 .226 2.56 .415 -.041 1 43 bs580b 1857 2001 145 6 0 .703 .35 .73 .150 .738 .264 2.73 .380 -.004 1 44 bs581a 1900 2001 102 4 0 .673 .33 .72 .127 .698 .238 2.51 .339 -.031 1 45 bs581b 1900 1998 99 3 0 .576 .29 .55 .096 .592 .236 2.61 .462 -.048 1 46 bs583a 1847 2001 155 7 0 .725 .21 .57 .095 .706 .266 2.60 .456 .000 1 47 bs583b 1847 2001 155 7 2 .576 .19 .53 .074 .619 .254 2.59 .386 -.028 1 48 bs588a 1872 2001 130 6 0 .450 .44 1.35 .279 .856 .300 2.70 .500 -.017 1 PART 7: DESCRIPTIVE STATISTICS: Black Spruce Wetland LALA 11:31 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 bs588b 1872 2001 130 6 0 .558 .24 .68 .120 .620 .332 2.81 .456 -.019 1 50 bs591a 1901 1999 99 3 0 .578 .40 .95 .190 .682 .319 2.60 .413 .015 1 51 bs591b 1901 1991 91 3 0 .662 .40 1.15 .220 .730 .327 2.59 .495 -.044 1 52 bs593a 1850 2000 151 6 0 .651 .40 .79 .137 .451 .263 2.63 .411 .008 1 53 bs593b 1850 2000 151 6 0 .741 .36 .62 .110 .405 .266 2.59 .469 .044 1 54 bs594a1 1846 1951 106 5 0 .674 .29 1.38 .180 .824 .244 2.78 .489 -.028 1 55 bs594a2 1953 2002 50 1 0 .437 .11 .19 .039 .469 .309 2.41 .519 .045 1 56 bs594b 1846 1921 76 3 0 .675 .32 1.37 .173 .585 .263 2.88 .528 -.071 1 57 bs602a 1774 1969 196 8 3 .509 .14 .33 .058 .680 .262 2.81 .410 .012 1 58 bs602b 1774 1902 129 6 2 .500 .18 .51 .088 .707 .262 2.82 .374 -.004 1 59 bs603a 1821 1971 151 6 0 .628 .23 .51 .086 .695 .235 2.69 .429 -.033 2 60 bs603a2 1973 2002 30 1 0 .421 .13 .17 .030 .028 .276 2.61 .589 -.058 3 61 bs603b 1821 1971 151 6 0 .708 .34 .69 .121 .539 .266 2.80 .517 .042 1 62 bs603b2 1973 2002 30 1 0 .692 .10 .20 .040 .208 .359 2.53 .631 .223 1 63 bs609a1 1906 1951 46 1 0 .510 .39 1.17 .200 .811 .176 2.65 .508 -.039 2 64 bs609a2 1953 2002 50 1 0 .429 .21 .43 .083 .765 .229 2.36 .365 -.063 3 65 bs609b 1906 1959 54 2 0 .493 .37 1.31 .256 .884 .209 2.80 .519 -.059 2 66 bs611a1 1939 2002 64 3 3 .258 .10 .23 .041 .365 .336 2.72 .514 .046 1 67 bs611a2 1835 1938 104 4 0 .509 .23 .53 .095 .557 .286 2.98 .507 -.010 1 68 bs611b 1835 2002 168 7 0 .628 .19 .57 .093 .706 .302 2.80 .500 -.022 1 69 bs613a 1817 1971 155 6 1 .460 .19 .63 .115 .813 .287 2.59 .474 -.066 4 70 bs613b 1928 1998 71 2 0 .588 .27 .60 .124 .606 .328 2.69 .472 .026 1 71 bsw2a 1798 1986 189 8 5 .131 .40 .84 .156 .664 .271 2.56 .438 -.009 1 72 bsw12a 1837 2006 170 7 7 .087 .22 .65 .108 .638 .281 2.68 .502 .048 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 7812 311 45 .537 .26 1.38 .123 .669 .275 3.13 .461 -.011