Bent Creek Experimental Forest QUPR, North Carolina - nc020 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 QUAL data from Bent Creek to create the Bent Creek Q. leucobalanus chronology used in the final reconstruction. The species name for Q. montana was Q. prinus, which is the species name in the ITRDB. 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 : NC020.CRN Measurement file name : NC020.RWL Date checked : 06JUL12 Checked by : B. Bauer Beginning year : 1716 Ending year : 1996 Principal investigators: P. Baker Site name : Bent Creek Experimental Forest Site location : N. Carolina Species information : QUPR CHESTNUT OAK Latitude : 3530 Longitude : -08238 Elevation : 790M Series intercorrelation: 0.496 Avg mean sensitivity : 0.188 Avg standard deviation : 0.438 Avg autocorrelation : 0.760 Number dated series : 23 Segment length tested : 50 Number problem segments: 18 Pct problem segments : 14.17 PART 5: CORRELATION OF SERIES BY SEGMENTS: Bent Creek Chestnut Oak 11:12 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 HT102a 1893 1996 .74 .71 .63 .58 2 HT103a 1870 1996 .48 .46 .60 .59 .48 3 HT104a 1870 1996 .59 .56 .71 .72 .72 4 HT108a 1867 1996 .66 .64 .73 .53 .15B 5 HT113a 1896 1996 .59 .63 .66 .47 6 HT204a 1792 1996 .28A .20B .18B .16B .19B .41 .47 .46 7 HT206a 1852 1996 .31A .45 .49 .44 .48 8 HT208a 1759 1996 .57 .53 .62 .56 .57 .42 .46 .58 .42 9 HT213a 1716 1996 .61 .55 .57 .54 .52 .60 .56 .43 .49 10 HT213b 1781 1996 .72 .58 .51 .50 .49 .50 .43 .31A 11 HT216a 1890 1996 .70 .72 .64 .61 12 HT226a 1872 1996 .57 .67 .72 .62 .49 13 HT227a 1876 1996 .43 .44 .45 .49 14 HT239a 1873 1992 .75 .74 .72 .61 .44 15 HT244a 1876 1996 .50 .54 .69 .56 16 RP133a 1873 1996 .59 .58 .67 .38 .49 17 RP137a 1891 1996 .22B .25B .40 .57 18 RP139a 1891 1996 .60 .66 .39 .43 19 RP146a 1830 1996 .40 .32A .52 .42 .24B .42 20 RP147a 1815 1996 .26A .47 .54 .54 .53 .24B .19B 21 RP150a 1879 1996 .55 .73 .57 .48 22 RP156a 1807 1996 .35 .35B .47 .50 .61 .50 .15B 23 RP158a 1827 1996 .34 .31A .78 .82 .67 .59 Av segment correlation .59 .52 .43 .42 .49 .54 .59 .52 .46 PART 7: DESCRIPTIVE STATISTICS: Bent Creek Chestnut Oak 11:12 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 HT102a 1893 1996 104 4 0 .641 2.04 3.57 .570 .674 .174 2.74 .580 .000 1 2 HT103a 1870 1996 127 5 0 .510 1.15 1.89 .308 .705 .164 2.59 .419 -.092 1 3 HT104a 1870 1996 127 5 0 .653 1.54 2.56 .435 .735 .163 2.82 .538 .020 2 4 HT108a 1867 1996 130 5 1 .485 1.08 3.43 .573 .841 .198 2.81 .478 -.040 1 5 HT113a 1896 1996 101 4 0 .514 1.78 3.67 .640 .881 .137 2.67 .516 .029 1 6 HT204a 1792 1996 205 8 5 .309 1.48 3.21 .389 .641 .178 2.68 .430 -.021 1 7 HT206a 1852 1996 145 5 1 .414 1.40 3.17 .721 .882 .231 2.41 .330 -.062 1 8 HT208a 1759 1996 238 9 0 .523 1.37 2.64 .347 .645 .157 2.52 .306 -.019 1 9 HT213a 1716 1996 281 9 0 .547 .76 1.81 .321 .829 .205 2.70 .413 -.014 1 10 HT213b 1781 1996 216 8 1 .503 .84 1.56 .233 .595 .185 2.65 .376 .022 1 11 HT216a 1890 1996 107 4 0 .640 1.95 3.62 .527 .732 .147 2.69 .512 -.063 1 12 HT226a 1872 1996 125 5 0 .552 1.32 3.15 .560 .789 .196 2.65 .377 -.045 1 13 HT227a 1876 1996 121 4 0 .450 .97 2.47 .436 .807 .208 2.63 .408 .042 1 14 HT239a 1873 1992 120 5 0 .625 1.62 3.54 .524 .777 .168 2.67 .468 -.016 1 15 HT244a 1876 1996 121 4 0 .542 1.51 2.64 .431 .765 .148 2.84 .411 .024 1 16 RP133a 1873 1996 124 5 0 .526 1.29 3.33 .749 .877 .225 2.76 .443 .024 1 17 RP137a 1891 1996 106 4 2 .373 .93 1.77 .354 .777 .193 2.40 .346 .015 1 18 RP139a 1891 1996 106 4 0 .512 1.32 3.32 .630 .832 .228 2.65 .414 -.025 1 19 RP146a 1830 1996 167 6 2 .395 .87 1.88 .369 .781 .243 2.72 .536 .025 2 20 RP147a 1815 1996 182 7 3 .374 .79 1.41 .211 .682 .161 2.81 .487 .004 1 21 RP150a 1879 1996 118 4 0 .522 1.03 2.61 .434 .811 .192 2.62 .431 -.068 1 22 RP156a 1807 1996 190 7 2 .402 .74 1.75 .310 .775 .215 2.81 .499 -.059 1 23 RP158a 1827 1996 170 6 1 .601 1.41 2.85 .593 .851 .176 2.80 .374 -.004 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3431 127 18 .496 1.21 3.67 .438 .760 .188 2.84 .432 -.014