Walker Cove Research Natural Area, North Carolina - NC029 Additional Site Information C.A. Copenheaver Reference: Carolyn A. Copenheaver, Ketia L. Shumaker, Brittany M. Butcher, George E.Hahn, La'Portia J. Perkins, Christopher J. Dukes, Emma G. Thompson, Michael F.J. Pisaric. 2020. Dendroclimatology of sugar maple (Acer saccharum): Climate-growth response in a late-successional species. Dendrochronologia, Vol. 63, 125747, Oct. 2020. DOI: 10.1016/j.dendro.2020.125747 Notes: Pisgah National Forest. In the publication, this site was identified as Dillingham, NC Funding: United States Department of Agriculture, National Institute of Food and Agriculture AFRI Project 2016-67003-24944 COFECHA output: Chronology file name : NC029.CRN Measurement file name : NC029.RWL Date checked : 11AUG21 Checked by : B. Bauer Beginning year : 1817 Ending year : 2016 Principal investigators: C.A. Copenheaver Site name : Walker Cove Research Natural Area Site location : N.Carolina Species information : ACSH SUGAR MAPLE Latitude : 3545 Longitude : -08221 Elevation : 1354M Series intercorrelation: 0.505 Avg mean sensitivity : 0.289 Avg standard deviation : 1.069 Avg autocorrelation : 0.738 Number dated series : 36 Segment length tested : 50 Number problem segments: 23 Pct problem segments : 14.65 PART 5: CORRELATION OF SERIES BY SEGMENTS: Walker Cove 11:40 Wed 11 Aug 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 1825 1850 1875 1900 1925 1950 1975 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 WCA02A 1986 2016 .68 2 WC02BC 1907 2016 .35 .34 .45 .57 3 WCA04A 1945 2016 .61 .68 .61 4 WCA04B 1942 2016 .48 .58 .59 5 WCA05A 1948 2016 .60 .57 .39 6 WCC05B 1939 2016 .69 .73 .62 7 WCA06A 1899 2016 .41 .44 .64 .67 .56 8 WCW06B 1885 2016 .61 .63 .73 .75 .71 9 WCN07B 1924 2016 .54 .53 .32A .23A 10 WCN09A 1935 2016 .32B .43 .51 11 WCA08A 1930 2016 .39 .65 .61 12 WCN08B 1934 2016 .49 .61 .68 13 WCA10A 1906 2016 .34 .50 .69 .60 14 WCN10B 1916 2016 .61 .60 .69 .74 15 WCA11A 1915 2016 .61 .56 .65 .59 16 WCN11B 1922 2016 .59 .58 .74 .74 17 WCA12A 1904 2016 .29A .56 .59 .45 18 WCA12B 1855 2016 .22A .37 .34 .25B .64 .42 19 WCA13A 1907 2016 .52 .48 .47 .41 20 WCA13B 1911 2016 .47 .50 .70 .70 21 WCA16A 1891 2016 .41 .43 .29A .49 .49 22 WCA18A 1935 2016 .69 .76 .79 23 WCN18B 1935 2016 .67 .74 .77 24 WCN19A 1825 2016 .00B .15B .55 .49 .25A .57 .63 25 WCA19B 1860 2016 .56 .58 .44 .17A .38 .48 26 WCA20A 1889 2015 .38 .52 .60 .32A .24A 27 WCC20B 1868 2015 .36 .31A .47 .36 .46 .51 28 WCC21A 1879 2016 .36 .37 .34 .59 .38 29 WCN21B 1817 2015 .06B .25B .54 .51 .42 .58 .48 30 WCA22A 1848 2016 .10B .11B .28A .42 .69 .82 .76 31 WCC22B 1897 2016 .58 .58 .72 .84 .67 32 WCA23A 1896 2016 .39 .35B .55 .75 .80 33 WCA23B 1894 2016 .34 .34 .51 .78 .71 34 WCA24B 1860 2016 .06B .10B .29A .68 .65 .62 35 WCC25A 1920 2016 .55 .59 .74 .71 36 WCA25B 1920 2016 .40 .49 .59 .56 Av segment correlation .06 .24 .41 .46 .51 .62 .58 PART 7: DESCRIPTIVE STATISTICS: Walker Cove 11:40 Wed 11 Aug 2021 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 WCA02A 1986 2016 31 1 0 .680 3.27 7.75 1.721 .894 .195 2.38 .417 -.019 2 2 WC02BC 1907 2016 110 4 0 .427 1.40 3.42 .738 .637 .340 2.34 .309 -.050 1 3 WCA04A 1945 2016 72 3 0 .646 3.70 7.15 1.248 .501 .245 2.56 .478 .028 1 4 WCA04B 1942 2016 75 3 0 .547 3.54 7.03 1.361 .710 .274 2.65 .510 -.010 1 5 WCA05A 1948 2016 69 3 0 .432 2.34 7.19 1.258 .794 .295 2.55 .487 -.017 1 6 WCC05B 1939 2016 78 3 0 .614 2.75 7.01 1.507 .902 .228 2.54 .433 -.056 1 7 WCA06A 1899 2016 118 5 0 .547 2.63 5.82 1.090 .489 .301 2.75 .414 -.026 1 8 WCW06B 1885 2016 132 5 0 .683 2.12 5.36 1.040 .759 .245 2.88 .432 .006 1 9 WCN07B 1924 2016 93 4 2 .379 1.47 4.02 .840 .626 .364 2.72 .507 -.031 1 10 WCN09A 1935 2016 82 3 1 .421 2.86 5.74 1.204 .757 .251 2.72 .581 .052 1 11 WCA08A 1930 2016 87 3 0 .548 2.91 5.53 1.142 .838 .204 2.42 .457 -.029 3 12 WCN08B 1934 2016 83 3 0 .536 3.10 6.21 1.239 .801 .223 2.60 .387 -.008 1 13 WCA10A 1906 2016 111 4 0 .520 2.34 4.58 .948 .756 .249 2.56 .432 -.067 3 14 WCN10B 1916 2016 101 4 0 .682 2.12 3.75 .682 .541 .243 2.68 .413 .037 1 15 WCA11A 1915 2016 102 4 0 .598 2.66 6.36 1.347 .766 .294 2.86 .450 -.010 1 16 WCN11B 1922 2016 95 4 0 .673 2.63 5.53 .887 .435 .304 2.55 .393 .013 1 17 WCA12A 1904 2016 113 4 1 .400 2.31 4.28 .914 .731 .256 2.63 .471 -.077 1 18 WCA12B 1855 2016 162 6 2 .345 2.02 5.32 1.158 .868 .276 2.58 .384 -.025 1 19 WCA13A 1907 2016 110 4 0 .448 2.22 5.47 1.472 .926 .259 2.54 .390 .023 1 20 WCA13B 1911 2016 106 4 0 .591 2.60 7.66 1.920 .947 .261 2.55 .415 .031 1 21 WCA16A 1891 2016 126 5 1 .448 2.45 7.73 1.478 .739 .325 2.85 .499 .065 1 22 WCA18A 1935 2016 82 3 0 .711 4.02 6.36 1.062 .429 .230 2.52 .466 -.046 2 23 WCN18B 1935 2016 82 3 0 .720 3.26 6.45 .999 .377 .260 2.59 .525 -.012 2 24 WCN19A 1825 2016 192 7 3 .359 1.27 4.55 .758 .801 .269 2.61 .347 -.046 2 25 WCA19B 1860 2016 157 6 1 .411 1.71 4.89 1.002 .837 .250 2.77 .452 -.001 1 26 WCA20A 1889 2015 127 5 2 .372 1.95 5.01 1.127 .896 .290 2.59 .465 .054 1 27 WCC20B 1868 2015 148 6 1 .394 1.40 3.14 .776 .847 .324 2.40 .317 -.005 1 28 WCC21A 1879 2016 138 5 0 .472 1.50 3.75 .704 .682 .359 2.33 .325 -.014 1 29 WCN21B 1817 2015 199 7 2 .352 1.03 3.25 .647 .775 .349 2.65 .324 -.065 1 30 WCA22A 1848 2016 169 7 3 .541 2.30 5.12 1.260 .817 .297 2.61 .423 -.034 1 31 WCC22B 1897 2016 120 5 0 .661 3.13 7.08 1.353 .643 .316 2.56 .488 -.058 1 32 WCA23A 1896 2016 121 5 1 .606 2.14 5.06 1.061 .731 .335 2.68 .511 -.001 1 33 WCA23B 1894 2016 123 5 0 .554 2.41 6.37 1.220 .778 .279 2.44 .357 -.054 2 34 WCA24B 1860 2016 157 6 3 .432 1.38 4.74 .840 .665 .389 2.62 .385 -.010 1 35 WCC25A 1920 2016 97 4 0 .634 1.80 4.38 .997 .852 .279 2.59 .426 .020 1 36 WCA25B 1920 2016 97 4 0 .490 1.83 5.68 .943 .687 .300 2.71 .450 -.019 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4065 157 23 .505 2.19 7.75 1.069 .738 .289 2.88 .421 -.015