Rambulette Mountain, Georgia - ga019 Additional Site Information T.A. Knight Notes: Some raw data here might 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. See the citation above for standardization methods. The ARSTAN standardization menu is below: opt plt tree-ring data type 1 !tucson ring-width format missing data in gap -9 0 !missing values estimated (no plots) data transformation 4 0 !spread/level power transform (no plots) first detrending 2 0 0 !1st-neg expon curve (k>0), no = opt 5 second detrending 6 0 0 !2nd-horizontal line through mean robust detrending 1 !non-robust detrending methods used interactive detrend 2 !interactive detrending used index calculation 2 !residuals or differences (rt-gt) ar modeling method 1 0 !non-robust autoregressive modeling pooled ar order 0 0 !minimum aic pooled ar model order fit series ar order 0 !pooled ar order fit to all series mean chronology 2 0 0 0 !robust (biweight) mean chronology stabilize variance 80 !spline stabilized (fixed 50% cutoff) common period years 1880 2000 !first and last years of common period site-tree-core mask SSSTTC !site-tree-core separation mask running rbar 40 20 0 !running rbar window/overlap (no plots) printout option 2 !summary & series statistics printed core series save 1 !series saved in tucson raw data format summary plot displays 3 !spaghetti and mean chronology plots stand dynamics stuf 0 0 !no stand dynamics analyses done running mean window 0 !running mean window width percent growth change 0 !percent growth change threshold std error threshold 0 !standard error limit threshold 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 : GA019.CRN Measurement file name : GA019.RWL Date checked : 06JUL12 Checked by : B. Bauer Beginning year : 1762 Ending year : 2002 Principal investigators: T.A. Knight Site name : Rambulette Mountain Site location : Georgia Species information : QUST POST OAK Latitude : 3229 Longitude : -08420 Elevation : 198M Series intercorrelation: 0.583 Avg mean sensitivity : 0.242 Avg standard deviation : 0.393 Avg autocorrelation : 0.632 Number dated series : 37 Segment length tested : 50 Number problem segments: 12 Pct problem segments : 4.65 PART 5: CORRELATION OF SERIES BY SEGMENTS: Rambulette Mountain 16:23 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 1975 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 rcp02a 1902 2002 .52 .55 .53 .55 2 rcp08a 1855 2002 .60 .63 .69 .59 .57 .58 3 rcp09b 1854 2002 .73 .72 .79 .81 .77 .76 4 rcp10a 1843 2002 .41 .43 .62 .67 .63 .58 .60 5 rcp10b 1840 2002 .37 .55 .72 .77 .71 .69 .67 6 rcp11a 1847 2002 .58 .54 .52 .72 .64 .54 .58 7 rcp09a 1844 2002 .57 .62 .78 .83 .76 .69 .65 8 rcp13a 1818 2002 .40 .37 .63 .72 .65 .53 .35 .37 9 rcp13b 1795 2002 .25A .32A .45 .50 .59 .75 .77 .61 .62 10 rcp14a 1850 2002 .32A .63 .73 .72 .66 .67 11 rcp14b 1845 2002 .32A .32A .48 .60 .72 .70 .72 12 rcp15b 1856 2002 .74 .62 .58 .65 .63 .65 13 rcp20b 1847 2002 .52 .59 .67 .65 .51 .52 .51 14 rcp26a 1856 2002 .67 .73 .64 .53 .52 .52 15 rcp29a 1788 2002 .56 .58 .51 .26A .42 .74 .67 .65 .64 16 rcp30a 1843 2002 .45 .43 .46 .65 .75 .71 .71 17 rcp32a 1835 2002 .48 .58 .75 .79 .63 .41 .42 18 rcp32b 1839 2002 .62 .63 .74 .77 .72 .51 .52 19 rcp34a 1837 2002 .44 .68 .77 .59 .64 .56 .59 20 rcp34b 1838 2002 .43 .68 .72 .62 .62 .57 .59 21 rcp36a 1853 2002 .73 .70 .67 .79 .74 .78 22 rcp36b 1855 2002 .76 .76 .68 .65 .58 .61 23 rcp38a 1762 2002 .63 .66 .62 .63 .68 .79 .68 .59 .63 .61 24 rcp38b 1781 2002 .66 .65 .60 .70 .83 .73 .60 .42 .36 25 rcp39a 1837 2002 .28B .56 .79 .66 .64 .71 .71 26 rcp39b 1827 2002 .48 .53 .58 .62 .75 .60 .59 27 rcp41a 1770 1919 .52 .52 .35 .59 .50 .42 28 rcp41b 1769 2002 .65 .68 .54 .57 .68 .65 .45 .35 .30A .36 29 rcp42a 1844 2000 .76 .74 .79 .71 .59 .43 .45 30 rcp43a 1846 1939 .49 .50 .64 .65 31 rcp44a 1840 2002 .54 .53 .63 .63 .57 .36 .34 32 rcp44b 1814 2002 .65 .57 .67 .62 .57 .59 .39 .38 33 rcp46a 1843 2002 .28A .32A .56 .61 .43 .49 .51 34 rcp47a 1832 2002 .26B .27A .50 .52 .51 .51 .51 35 rcp48b 1863 2002 .47 .63 .73 .73 .60 .60 36 rcp49a 1844 2002 .61 .60 .74 .59 .61 .59 .59 37 rcp49b 1840 2002 .60 .68 .75 .70 .55 .59 .63 Av segment correlation .60 .55 .51 .49 .57 .66 .66 .63 .56 .57 PART 7: DESCRIPTIVE STATISTICS: Rambulette Mountain 16:23 Fri 06 Jul 2012 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 rcp02a 1902 2002 101 4 0 .537 1.95 5.00 .888 .531 .310 2.59 .401 -.017 1 2 rcp08a 1855 2002 148 6 0 .613 .97 1.95 .335 .556 .254 2.79 .540 -.007 1 3 rcp09b 1854 2002 149 6 0 .768 1.18 2.78 .414 .492 .256 2.78 .530 .014 1 4 rcp10a 1843 2002 160 7 0 .570 .93 2.31 .330 .592 .246 2.76 .563 -.003 2 5 rcp10b 1840 2002 163 7 0 .628 .91 2.08 .324 .647 .233 2.69 .485 .015 1 6 rcp11a 1847 2002 156 7 0 .609 .93 2.78 .400 .542 .289 2.87 .556 .029 1 7 rcp09a 1844 2002 159 7 0 .691 .87 2.34 .395 .600 .275 2.57 .456 .016 2 8 rcp13a 1818 2002 185 8 0 .481 .76 1.93 .249 .589 .231 2.77 .400 -.059 1 9 rcp13b 1795 2002 208 9 2 .528 .84 1.49 .234 .556 .205 2.65 .454 -.009 1 10 rcp14a 1850 2002 153 6 1 .577 .86 2.51 .372 .747 .238 2.84 .468 -.042 1 11 rcp14b 1845 2002 158 7 2 .531 1.16 3.29 .563 .732 .259 2.87 .480 .007 1 12 rcp15b 1856 2002 147 6 0 .643 1.15 2.23 .333 .473 .233 2.68 .451 .033 1 13 rcp20b 1847 2002 156 7 0 .559 .69 1.87 .313 .370 .327 3.05 .625 -.029 1 14 rcp26a 1856 2002 147 6 0 .583 .72 1.69 .249 .639 .230 2.90 .546 -.061 1 15 rcp29a 1788 2002 215 9 1 .546 .89 3.75 .593 .796 .297 3.08 .428 -.027 1 16 rcp30a 1843 2002 160 7 0 .602 .78 2.71 .406 .736 .264 2.97 .473 .052 1 17 rcp32a 1835 2002 168 7 0 .583 .90 2.29 .377 .725 .229 2.70 .414 .013 1 18 rcp32b 1839 2002 164 7 0 .653 1.14 2.37 .412 .650 .215 2.97 .537 -.035 2 19 rcp34a 1837 2002 166 7 0 .567 .70 2.63 .357 .628 .265 2.74 .468 -.025 1 20 rcp34b 1838 2002 165 7 0 .564 .74 1.81 .247 .258 .292 2.73 .467 -.036 1 21 rcp36a 1853 2002 150 6 0 .717 1.04 4.40 .651 .812 .219 2.76 .424 .048 1 22 rcp36b 1855 2002 148 6 0 .654 1.02 3.16 .542 .827 .199 2.66 .363 .026 1 23 rcp38a 1762 2002 241 10 0 .641 .84 2.75 .477 .784 .242 2.75 .357 .031 1 24 rcp38b 1781 2002 222 9 0 .618 .89 2.82 .511 .808 .236 2.73 .515 -.027 1 25 rcp39a 1837 2002 166 7 1 .587 1.15 2.84 .447 .666 .227 2.68 .455 -.009 1 26 rcp39b 1827 2002 176 7 0 .568 1.11 2.35 .483 .755 .239 2.65 .430 -.038 1 27 rcp41a 1770 1919 150 6 0 .505 .66 1.85 .302 .663 .259 2.70 .445 -.020 1 28 rcp41b 1769 2002 234 10 1 .544 .60 1.28 .205 .553 .237 2.75 .430 -.001 1 29 rcp42a 1844 2000 157 7 0 .618 .72 1.98 .270 .375 .272 2.83 .495 .026 1 30 rcp43a 1846 1939 94 4 0 .547 1.25 2.65 .571 .860 .188 3.07 .586 -.014 1 31 rcp44a 1840 2002 163 7 0 .484 .61 1.23 .182 .631 .194 2.58 .363 -.029 1 32 rcp44b 1814 2002 189 8 0 .551 .68 2.34 .325 .770 .217 2.83 .490 -.027 1 33 rcp46a 1843 2002 160 7 2 .443 1.13 3.68 .386 .538 .209 2.92 .347 -.003 2 34 rcp47a 1832 2002 171 7 2 .442 .98 1.73 .234 .500 .178 2.63 .418 -.025 1 35 rcp48b 1863 2002 140 6 0 .602 1.10 2.25 .396 .698 .214 2.78 .514 .011 1 36 rcp49a 1844 2002 159 7 0 .596 1.19 3.75 .601 .580 .245 2.85 .514 -.021 1 37 rcp49b 1840 2002 163 7 0 .659 1.02 3.33 .452 .620 .226 2.99 .519 -.008 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6111 258 12 .583 .92 5.00 .393 .632 .242 3.08 .467 -.007