Bent Creek Experimental Forest QUAL, North Carolina - nc021 Additional Site Information P. Baker Notes: Some raw data here have values of -8888 for years where the rings were distorted or otherwise not useful for dendroclimatology. The latest version of ARSTAN reads these as dummy variables and can in-fill these gaps. These data were combined with QUMO data from Bent Creek to create the Bent Creek Q. leucobalanus chronology used in the final reconstruction. Reference: Pederson, N., A.R. Bell, T.A. Knight, C. Leland, N. Malcomb, K.J. Anchukaitis, K. Tackett, J. Scheff, A. Brice, B. Catron, W. Blozan, and J. Riddle. 2012. Long-term perspective on a modern drought in the American Southeast. Environmental Research Letters, 7, 014034. COFECHA output: Chronology file name : NC021.CRN Measurement file name : NC021.RWL Date checked : 06JUL12 Checked by : B. Bauer Beginning year : 1733 Ending year : 1996 Principal investigators: P. Baker Site name : Bent Creek Experimental Forest Site location : N. Carolina Species information : QUAL WHITE OAK Latitude : 3530 Longitude : -08238 Elevation : 790M Series intercorrelation: 0.462 Avg mean sensitivity : 0.185 Avg standard deviation : 0.479 Avg autocorrelation : 0.730 Number dated series : 17 Segment length tested : 50 Number problem segments: 21 Pct problem segments : 19.27 PART 5: CORRELATION OF SERIES BY SEGMENTS: Bent Creek QUAL 11:14 Fri 06 Jul 2012 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 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 HT106a 1882 1996 .68 .74 .56 .32A 2 HT109a 1894 1996 .53 .58 .57 .55 3 HT123a 1782 1996 .52 .46 .53 .34B .36 .57 .67 .64 4 HT131a 1880 1996 .62 .63 .60 .43 5 HT221a 1774 1996 .17B .14B .01B .19B .42 .49 .54 .65 .73 6 HT221b 1738 1866 .31A .45 .27B .22B .19B 7 HT222a 1761 1996 .25A .38 .40 .52 .60 .73 .77 .75 .53 8 HT224a 1733 1834 .46 .55 .64 .62 9 RP101a 1759 1996 -.26B-.15B .48 .48 .54 .55 .55 .38 .41 10 RP106a 1737 1996 .19B .35B .61 .65 .71 .60 .34 .31A .42 .59 11 RP106b 1770 1996 .36 .43 .59 .57 .50 .36 .38 .31A .36 12 RP116a 1830 1996 .52 .64 .70 .67 .34B .19A 13 RP126a 1850 1996 .17B .41 .70 .49 .37 14 RP144a 1816 1915 .40 .46 .45 .52 15 RP152a 1813 1949 .63 .57 .53 .62 .62 16 RP152b 1794 1979 .57 .71 .67 .67 .76 .64 .38 .28A 17 RP153a 1838 1996 .55 .65 .67 .71 .56 .51 Av segment correlation .32 .27 .38 .47 .50 .51 .56 .60 .51 .45 PART 7: DESCRIPTIVE STATISTICS: Bent Creek QUAL 11:14 Fri 06 Jul 2012 Page 6 ----------------------------------------------------------------------------------------------------------------------------------- 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 HT106a 1882 1996 115 4 1 .513 1.77 3.45 .801 .830 .203 2.78 .485 .059 1 2 HT109a 1894 1996 103 4 0 .548 2.13 4.38 .745 .754 .186 2.59 .495 -.030 2 3 HT123a 1782 1996 215 8 1 .519 1.38 2.98 .519 .785 .186 2.69 .484 -.012 1 4 HT131a 1880 1996 117 4 0 .513 1.62 3.95 .653 .786 .191 2.90 .574 -.027 1 5 HT221a 1774 1996 223 9 4 .402 .79 1.69 .409 .924 .169 3.06 .581 -.021 1 6 HT221b 1738 1866 129 5 4 .250 .66 1.66 .304 .796 .202 2.79 .337 -.060 1 7 HT222a 1761 1996 236 9 1 .533 1.29 2.83 .409 .800 .147 2.66 .437 .009 3 8 HT224a 1733 1834 102 4 0 .541 1.64 3.03 .411 .736 .131 2.52 .367 .026 1 9 RP101a 1759 1996 238 9 2 .229 .83 2.81 .768 .079 .228 2.29 .186 -.032 1 10 RP106a 1737 1996 260 10 3 .448 .85 2.01 .424 .864 .242 2.67 .427 -.011 1 11 RP106b 1770 1996 227 9 1 .403 .77 1.57 .282 .749 .211 2.63 .393 -.003 1 12 RP116a 1830 1996 167 6 2 .485 1.01 1.94 .332 .655 .207 2.59 .416 -.051 1 13 RP126a 1850 1996 147 5 1 .380 1.59 3.98 .919 .905 .195 2.62 .427 -.050 1 14 RP144a 1816 1915 100 4 0 .454 1.41 3.31 .557 .825 .182 2.82 .458 .003 1 15 RP152a 1813 1949 137 5 0 .610 1.07 1.80 .278 .747 .144 2.75 .490 -.026 1 16 RP152b 1794 1979 186 8 1 .586 1.29 2.21 .300 .719 .131 2.58 .385 .001 1 17 RP153a 1838 1996 159 6 0 .595 1.29 2.32 .298 .682 .142 2.67 .446 .054 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2861 109 21 .462 1.18 4.38 .479 .730 .185 3.06 .428 -.011