Bolton Mountain High PCRU, Vermont - VT006 Additional Site Information Daniel G. Gavin Purpose of Collection: Forest dynamics study Cores are stored at: University of Vermont Reference: Gavin, D.G., B. Beckage, and B. Osborne. 2008. Forest dynamics and the growth decline of red spruce and sugar maple on Bolton Mountain, Vermont: a comparison of modeling methods. Canadian Journal of Forest Research 38: 2635-2649. Notes: Entire data set included here; several trees not included because of poor crossdating. Detailed tree-level and core-level information is archived at: http://geography.uoregon.edu/gavin/ COFECHA output: Chronology file name : VT006.CRN Measurement file name : VT006.RWL Date checked : 04SEP09 Checked by : B. Bauer Beginning year : 1734 Ending year : 2005 Principal investigators: Daniel G. Gavin Site name : Bolton Mountain High Site location : Vermont Species information : PCRU RED SPRUCE Latitude : 4427 Longitude : -07251 Elevation : 900M Series intercorrelation: 0.577 Avg mean sensitivity : 0.252 Avg standard deviation : 0.587 Avg autocorrelation : 0.790 Number dated series : 76 Segment length tested : 50 Number problem segments: 31 Pct problem segments : 9.48 PART 5: CORRELATION OF SERIES BY SEGMENTS: Bolton Mountain High Spruce 15:03 Fri 04 Sep 2009 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 BH-R01A 1915 2004 .33 .39 .32A .45 2 BH-R01B 1918 2004 .52 .56 .52 .55 3 BH-R03A 1823 2003 .38 .36 .35 .43 .72 .78 .76 .78 4 BH-R03B 1855 2004 .32A .43 .73 .77 .68 .71 5 BH-R04A 1959 2004 .55 6 BH-R04B 1942 2004 .52 .61 .65 7 BH-R05A 1755 2004 .64 .56 .53 .61 .32A .32B .47 .60 .64 .61 8 BH-R05B 1734 2004 .64 .70 .67 .72 .56 .21B .43 .55 .57 .61 9 BH-R06A 1861 2004 .48 .39 .79 .83 .67 .69 10 BH-R06B 1885 2004 .59 .56 .54 .53 .61 11 BH-R07A 1901 2004 .50 .61 .55 .61 12 BH-R07B 1904 2004 .44 .52 .25A .26A 13 BH-R08A 1912 2004 .52 .69 .64 .62 14 BH-R08B 1905 2004 .57 .82 .76 .67 15 BH-R09A 1831 2004 .15B .16B .39 .68 .71 .62 .68 16 BH-R09B 1877 2004 .33A .61 .67 .81 .85 17 BH-R10A 1915 2004 .68 .71 .64 .62 18 BH-R10B 1891 2004 .50 .60 .69 .64 .72 19 BH-R11A 1884 2004 .48 .72 .69 .51 .46 20 BH-R11B 1855 2004 .58 .28A .63 .71 .52 .62 21 BH-R12A 1860 2004 .39 .45 .69 .81 .73 .75 22 BH-R12B 1860 2004 .50 .58 .54 .59 .73 .62 23 BH-R12C 1840 2004 .48 .48 .50 .63 .73 .76 .75 24 BH-R13A 1904 2004 .76 .86 .83 .81 25 BH-R13B 1919 2004 .89 .88 .72 .78 26 BH-R14A 1818 2004 .59 .68 .40 .46 .67 .55 .51 .60 27 BH-R14B 1853 2004 .52 .50 .78 .83 .77 .77 28 BH-R15A 1906 2004 .73 .79 .62 .49 29 BH-R15B 1890 2004 .66 .67 .72 .69 .76 30 BH-R16A 1894 2004 .70 .73 .79 .69 .64 31 BH-R16B 1901 2004 .72 .80 .72 .74 32 BH-R23A 1933 2004 .59 .68 .72 33 BH-R23B 1924 2004 .62 .60 .63 .65 34 BH-R34A 1898 2005 .44 .50 .59 .55 .61 35 BH-R34B 1897 2005 .49 .55 .65 .51 .61 36 BH-R35A 1905 2005 .32A .31A .19B .27B 37 BH-R37A 1917 2005 .49 .55 .57 .69 38 BH-R37B 1946 2005 .65 .66 .71 39 BH-R39A 1809 2005 .44 .57 .33A .44B .70 .61 .56 .56 40 BH-R39B 1816 2005 .46 .40B .13B .39 .53 .64 .67 .70 41 BH-R41A 1952 2005 .49 .66 42 BH-R41B 1958 2005 .39 43 BH-R43A 1892 2005 .67 .69 .72 .65 .63 44 BH-R43B 1885 2005 .55 .75 .75 .62 .60 45 BH-R45A 1878 2005 .31A .39B .49 .61 .62 46 BH-R45B 1869 2005 .46 .51 .88 .83 .68 .69 47 BH-R47A 1883 2004 .44 .67 .62 .47 .55 48 BH-R47B 1873 2004 .19B .20B .49 .62 .50 .51 49 BH-R49A 1855 2005 .42 .50 .75 .80 .69 .73 50 BH-R49B 1854 2005 .39B .44 .81 .84 .66 .66 51 BH-R51A 1883 2003 .53 .75 .75 .57 .59 52 BH-R51B 1885 2004 .45 .67 .68 .33A .27B 53 BH-R52A 1960 2005 .51 54 BH-R52B 1954 2005 .52 .55 55 BH-R54A 1953 2005 .69 .69 56 BH-R54B 1950 2005 .73 .73 57 BH-R56A 1953 2005 .44 .45 58 BH-R56B 1959 2005 .73 59 BH-R58A 1941 2005 .58 .69 .69 60 BH-R58B 1932 2005 .66 .67 .68 61 BH-R62A 1961 2005 .54 62 BH-R62B 1959 2005 .31A 63 BH-R64A 1944 2005 .22B .27B .43 64 BH-R64B 1936 2005 .39 .35 .40 65 BH-R66A 1950 2005 .21A .27A 66 BH-R66B 1943 2005 .38 .41 .43 67 BH-R68A 1954 2005 .55 .53 68 BH-R68B 1955 2005 .44 .43 69 BH-R70A 1858 2005 .35 .52 .79 .80 .75 .77 70 BH-R70B 1877 2005 .44 .58 .68 .71 .75 71 BH-R72A 1903 2005 .72 .80 .71 .73 72 BH-R72B 1897 2005 .73 .75 .82 .75 .76 73 BH-R74A 1928 2005 .81 .67 .68 74 BH-R74B 1914 2005 .61 .73 .54 .57 75 BH-R76A 1956 2005 .47 76 BH-R76B 1956 2005 .40 Av segment correlation .64 .63 .51 .50 .38 .46 .63 .67 .58 .62 PART 7: DESCRIPTIVE STATISTICS: Bolton Mountain High Spruce 15:03 Fri 04 Sep 2009 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 BH-R01A 1915 2004 90 4 1 .386 1.13 3.36 .798 .917 .250 2.77 .392 -.080 1 2 BH-R01B 1918 2004 87 4 0 .529 1.67 2.83 .572 .738 .215 2.68 .438 -.047 1 3 BH-R03A 1823 2003 181 8 0 .577 .61 1.72 .437 .870 .286 2.96 .399 .014 1 4 BH-R03B 1855 2004 150 6 1 .630 1.01 3.64 .609 .798 .265 2.66 .342 -.069 2 5 BH-R04A 1959 2004 46 1 0 .551 1.09 2.49 .527 .772 .248 2.67 .629 .004 1 6 BH-R04B 1942 2004 63 3 0 .598 1.29 3.95 .812 .849 .252 2.74 .589 -.011 1 7 BH-R05A 1755 2004 250 10 2 .522 .47 1.34 .210 .799 .216 2.88 .417 -.039 1 8 BH-R05B 1734 2004 271 10 1 .583 .55 1.91 .411 .890 .277 2.78 .487 -.042 2 9 BH-R06A 1861 2004 144 6 0 .667 .85 2.21 .432 .790 .252 2.79 .398 -.042 2 10 BH-R06B 1885 2004 120 5 0 .505 .77 2.26 .368 .739 .223 2.96 .456 .026 1 11 BH-R07A 1901 2004 104 4 0 .533 1.64 3.52 .736 .774 .227 2.78 .499 .007 1 12 BH-R07B 1904 2004 101 4 2 .353 1.22 4.10 .839 .880 .239 2.82 .493 -.031 1 13 BH-R08A 1912 2004 93 4 0 .561 .98 2.65 .689 .915 .254 2.52 .444 .030 1 14 BH-R08B 1905 2004 100 4 0 .613 1.25 2.62 .620 .874 .235 2.44 .412 .029 1 15 BH-R09A 1831 2004 174 7 2 .450 .60 1.41 .273 .805 .229 2.62 .391 -.032 1 16 BH-R09B 1877 2004 128 5 1 .644 1.02 2.49 .492 .844 .221 2.63 .455 -.002 1 17 BH-R10A 1915 2004 90 4 0 .654 .73 1.59 .389 .864 .260 2.80 .472 .065 1 18 BH-R10B 1891 2004 114 5 0 .586 1.05 2.20 .440 .790 .242 2.70 .498 .053 1 19 BH-R11A 1884 2004 121 5 0 .564 1.49 3.68 .800 .783 .288 2.56 .372 -.113 1 20 BH-R11B 1855 2004 150 6 1 .593 .67 2.97 .610 .879 .315 2.73 .372 -.056 1 21 BH-R12A 1860 2004 145 6 0 .646 1.58 3.75 .560 .595 .237 2.71 .404 -.083 1 22 BH-R12B 1860 2004 145 6 0 .552 1.04 2.33 .371 .714 .208 2.55 .374 -.016 1 23 BH-R12C 1840 2004 165 7 0 .606 1.69 3.42 .751 .829 .199 2.63 .495 .040 1 24 BH-R13A 1904 2004 101 4 0 .781 1.39 2.88 .591 .664 .273 2.62 .437 -.039 1 25 BH-R13B 1919 2004 86 4 0 .846 1.07 2.81 .606 .778 .334 2.52 .405 -.028 1 26 BH-R14A 1818 2004 187 8 0 .568 1.41 5.71 1.192 .923 .234 2.68 .346 -.005 1 27 BH-R14B 1853 2004 152 6 0 .720 1.24 2.38 .454 .708 .219 2.58 .386 -.046 2 28 BH-R15A 1906 2004 99 4 0 .625 1.16 2.60 .657 .833 .266 2.51 .422 -.058 1 29 BH-R15B 1890 2004 115 5 0 .662 2.00 4.70 .867 .732 .257 2.60 .414 -.048 1 30 BH-R16A 1894 2004 111 5 0 .683 1.00 2.88 .628 .822 .269 2.79 .496 -.054 1 31 BH-R16B 1901 2004 104 4 0 .727 1.22 3.78 .825 .885 .313 3.02 .514 -.012 1 32 BH-R23A 1933 2004 72 3 0 .617 1.58 4.81 .999 .860 .274 2.74 .534 -.098 2 33 BH-R23B 1924 2004 81 4 0 .631 1.52 3.57 .830 .887 .213 2.49 .432 -.101 1 34 BH-R34A 1898 2005 108 5 0 .526 .76 1.64 .346 .788 .264 2.52 .442 -.052 1 35 BH-R34B 1897 2005 109 5 0 .528 1.14 2.72 .482 .669 .268 2.79 .494 .009 1 36 BH-R35A 1905 2005 101 4 4 .301 .76 2.84 .531 .877 .322 2.86 .548 .046 2 37 BH-R37A 1917 2005 89 4 0 .543 1.18 2.49 .510 .703 .251 2.68 .507 .031 1 38 BH-R37B 1946 2005 60 3 0 .661 1.86 3.44 .771 .802 .201 2.71 .469 -.044 1 39 BH-R39A 1809 2005 197 8 2 .514 .77 3.02 .655 .901 .285 2.53 .361 -.065 1 40 BH-R39B 1816 2005 190 8 2 .516 .75 2.99 .611 .885 .272 2.49 .361 -.018 1 41 BH-R41A 1952 2005 54 2 0 .527 1.83 3.82 .875 .889 .178 2.61 .497 -.044 1 42 BH-R41B 1958 2005 48 1 0 .391 1.47 2.83 .666 .841 .205 2.59 .591 -.053 1 43 BH-R43A 1892 2005 114 5 0 .637 1.01 2.21 .563 .884 .227 2.68 .506 -.042 1 44 BH-R43B 1885 2005 121 5 0 .654 .90 1.95 .555 .909 .221 2.60 .408 -.007 1 45 BH-R45A 1878 2005 128 5 2 .464 1.17 2.22 .509 .751 .239 2.54 .418 -.073 1 46 BH-R45B 1869 2005 137 6 0 .718 1.27 2.94 .486 .753 .198 2.74 .404 -.073 1 47 BH-R47A 1883 2004 122 5 0 .549 .56 1.69 .384 .855 .262 2.71 .366 -.029 1 48 BH-R47B 1873 2004 132 6 2 .418 .81 2.54 .597 .836 .306 2.77 .329 -.008 1 PART 7: DESCRIPTIVE STATISTICS: Bolton Mountain High Spruce 15:03 Fri 04 Sep 2009 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 BH-R49A 1855 2005 151 6 0 .671 .86 1.74 .325 .467 .314 2.77 .406 .010 1 50 BH-R49B 1854 2005 152 6 1 .648 .70 1.91 .335 .712 .264 2.76 .447 .030 1 51 BH-R51A 1883 2003 121 5 0 .602 .72 2.39 .609 .902 .336 2.86 .538 .029 2 52 BH-R51B 1885 2004 120 5 2 .456 .71 2.02 .585 .874 .295 2.62 .346 -.034 1 53 BH-R52A 1960 2005 46 1 0 .510 1.50 2.74 .559 .751 .207 2.55 .452 .014 1 54 BH-R52B 1954 2005 52 2 0 .526 2.42 3.58 .535 .588 .153 2.38 .400 -.082 2 55 BH-R54A 1953 2005 53 2 0 .700 1.30 5.81 1.231 .901 .312 2.59 .527 .046 1 56 BH-R54B 1950 2005 56 2 0 .725 1.76 5.21 1.507 .933 .264 2.67 .522 -.066 1 57 BH-R56A 1953 2005 53 2 0 .422 1.80 3.56 .756 .741 .252 2.60 .487 -.024 1 58 BH-R56B 1959 2005 47 1 0 .726 2.10 3.75 .748 .688 .243 2.70 .590 -.013 1 59 BH-R58A 1941 2005 65 3 0 .589 1.90 4.95 .975 .703 .282 2.55 .382 -.035 1 60 BH-R58B 1932 2005 74 3 0 .635 1.43 4.20 .746 .756 .289 2.70 .376 -.048 1 61 BH-R62A 1961 2005 45 1 0 .537 1.58 2.72 .441 .788 .128 2.49 .406 -.111 1 62 BH-R62B 1959 2005 47 1 1 .312 1.55 2.35 .334 .697 .140 2.55 .503 -.074 1 63 BH-R64A 1944 2005 62 3 2 .296 1.70 3.89 .813 .720 .267 2.37 .369 -.075 2 64 BH-R64B 1936 2005 70 3 0 .418 1.18 2.20 .429 .485 .241 2.64 .387 .137 3 65 BH-R66A 1950 2005 56 2 2 .234 1.70 2.74 .530 .571 .211 2.68 .497 -.040 1 66 BH-R66B 1943 2005 63 3 0 .386 2.71 4.82 .818 .780 .160 2.80 .586 -.010 1 67 BH-R68A 1954 2005 52 2 0 .531 3.78 5.10 .677 .236 .189 2.67 .550 -.050 1 68 BH-R68B 1955 2005 51 2 0 .441 2.70 4.00 .707 .705 .154 2.43 .466 -.037 1 69 BH-R70A 1858 2005 148 6 0 .700 1.10 2.26 .551 .763 .311 2.53 .336 -.065 2 70 BH-R70B 1877 2005 129 5 0 .597 1.11 2.62 .521 .696 .293 2.47 .362 -.022 1 71 BH-R72A 1903 2005 103 4 0 .726 1.67 4.16 .802 .777 .240 2.46 .365 .027 1 72 BH-R72B 1897 2005 109 5 0 .755 1.22 3.10 .645 .835 .244 2.58 .366 -.029 1 73 BH-R74A 1928 2005 78 3 0 .780 1.62 3.26 .531 .654 .228 2.70 .453 -.012 1 74 BH-R74B 1914 2005 92 4 0 .574 .95 1.89 .434 .773 .234 2.73 .483 .025 1 75 BH-R76A 1956 2005 50 1 0 .472 1.75 3.08 .535 .696 .176 2.44 .547 -.014 1 76 BH-R76B 1956 2005 50 1 0 .396 1.74 2.91 .519 .678 .193 2.80 .671 -.043 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 8045 327 31 .577 1.16 5.81 .587 .790 .252 3.02 .433 -.024