Lavender Mountain, Georgia - ga016 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 1 !rbar weighted stabilization method 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 : GA016.CRN Measurement file name : GA016.RWL Date checked : 06JUL12 Checked by : B. Bauer Beginning year : 1795 Ending year : 2003 Principal investigators: T.A. Knight Site name : Lavender Mountain Site location : Georgia Species information : PIPA LONGLEAF PINE Latitude : 3020 Longitude : -08515 Elevation : 344M Series intercorrelation: 0.607 Avg mean sensitivity : 0.292 Avg standard deviation : 0.730 Avg autocorrelation : 0.700 Number dated series : 40 Segment length tested : 50 Number problem segments: 6 Pct problem segments : 2.13 PART 5: CORRELATION OF SERIES BY SEGMENTS: Lavendar Mountain 13:20 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 1800 1825 1850 1875 1900 1925 1950 1975 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 LMT01A 1816 1999 .61 .58 .50 .40 .55 .53 .32A 2 LMT01B 1809 1999 .38 .48 .60 .41 .28A .48 .53 3 LMT02A 1821 2003 .52 .52 .63 .69 .70 .76 .69 .70 4 LMT02B 1828 2002 .65 .62 .64 .67 .72 .71 .73 5 LMT03A 1831 2003 .59 .59 .50 .58 .73 .58 .62 6 LMT03B 1865 1983 .57 .53 .59 .67 .63 7 LMT05A 1809 2003 .34B .61 .53 .48 .47 .72 .63 .49 8 LMT05B 1820 2003 .53 .57 .66 .58 .59 .74 .73 .74 9 LMT06A 1828 2003 .59 .70 .67 .69 .71 .64 .65 10 LMT06B 1883 1979 .66 .67 .69 .70 11 LMT08B 1870 2003 .57 .57 .59 .75 .65 .61 12 LMT09A 1838 2003 .65 .72 .62 .59 .78 .74 .72 13 LMT10A 1849 2003 .64 .57 .58 .60 .52 .42 .47 14 LMT26A 1834 2003 .45 .49 .40 .51 .65 .77 .73 15 LMT26B 1820 2003 .48 .50 .69 .65 .49 .52 .56 .53 16 LMT27A 1817 2003 .70 .65 .39 .38 .58 .57 .66 .67 17 LMT27B 1795 2003 .41 .42 .38 .45 .42 .52 .67 .66 18 LMT28A 1837 2003 .49 .56 .30B .29A .71 .76 .73 19 LMT29A 1829 2003 .68 .62 .61 .67 .51 .54 .54 20 LMT30B 1847 2003 .38 .40 .49 .57 .74 .68 .59 21 LMT32A 1846 2003 .50 .51 .58 .60 .76 .69 .61 22 LMT32B 1837 2003 .41 .39 .59 .67 .73 .81 .83 23 LMT33A 1822 2003 .61 .60 .70 .69 .72 .75 .72 .70 24 LMT33B 1836 2003 .61 .73 .74 .74 .81 .77 .76 25 LMT34A 1819 2003 .57 .55 .47 .30A .43 .65 .74 .72 26 LMT36B 1823 2003 .62 .61 .81 .71 .63 .60 .57 .56 27 LMT36C 1823 2003 .65 .61 .76 .65 .65 .72 .63 .62 28 LMT36D 1844 2003 .66 .67 .71 .75 .71 .58 .57 29 LMT37A 1845 2003 .71 .71 .68 .48 .62 .73 .72 30 LMT37B 1846 2003 .55 .55 .75 .66 .60 .65 .66 31 LMT38A 1837 2003 .54 .48 .44 .49 .67 .77 .73 32 LMT38B 1842 2003 .59 .58 .42 .39 .56 .72 .68 33 LMT39A 1829 2003 .49 .58 .63 .76 .80 .79 .74 34 LMT39B 1874 2003 .65 .66 .72 .79 .78 .74 35 LMT40B 1820 1997 .61 .64 .71 .67 .62 .76 .83 36 LMT41B 1827 2003 .50 .55 .39 .53 .73 .72 .72 37 LMT42A 1844 2003 .68 .56 .48 .61 .74 .74 .66 38 LMT42B 1847 1995 .58 .55 .56 .70 .68 .70 39 LMT43A 1831 2003 .55 .64 .58 .60 .72 .63 .60 40 LMT43B 1841 2003 .67 .69 .61 .68 .80 .71 .72 Av segment correlation .54 .57 .59 .56 .59 .68 .67 .66 PART 7: DESCRIPTIVE STATISTICS: Lavendar Mountain 13:20 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 LMT01A 1816 1999 184 7 1 .487 1.62 5.58 1.020 .829 .275 2.77 .414 -.031 1 2 LMT01B 1809 1999 191 7 1 .434 1.36 3.19 .611 .768 .254 2.57 .342 -.037 1 3 LMT02A 1821 2003 183 8 0 .643 1.56 3.49 .640 .675 .252 2.69 .351 .040 1 4 LMT02B 1828 2002 175 7 0 .668 1.76 5.51 .767 .668 .261 2.85 .438 .047 1 5 LMT03A 1831 2003 173 7 0 .605 1.91 5.44 .866 .571 .333 2.72 .432 .007 3 6 LMT03B 1865 1983 119 5 0 .611 1.24 3.13 .532 .618 .298 2.77 .375 -.011 1 7 LMT05A 1809 2003 195 8 1 .477 .92 6.85 .839 .753 .326 2.64 .351 -.038 1 8 LMT05B 1820 2003 184 8 0 .641 1.75 6.07 1.162 .622 .414 2.77 .446 -.055 1 9 LMT06A 1828 2003 176 7 0 .627 1.17 2.44 .498 .664 .265 2.57 .423 .002 1 10 LMT06B 1883 1979 97 4 0 .705 1.59 3.81 .748 .690 .285 2.84 .508 -.015 2 11 LMT08B 1870 2003 134 6 0 .631 1.16 2.50 .518 .615 .305 2.70 .409 .011 2 12 LMT09A 1838 2003 166 7 0 .681 1.92 8.67 1.009 .504 .248 2.69 .449 .029 1 13 LMT10A 1849 2003 155 7 0 .533 1.89 4.33 .858 .714 .287 2.97 .511 -.032 2 14 LMT26A 1834 2003 170 7 0 .537 1.59 6.59 1.176 .701 .350 2.90 .517 -.026 1 15 LMT26B 1820 2003 184 8 0 .550 1.10 3.86 .749 .825 .280 2.65 .322 -.028 1 16 LMT27A 1817 2003 187 8 0 .593 1.02 4.01 .755 .895 .245 2.72 .493 -.063 1 17 LMT27B 1795 2003 209 8 0 .474 1.00 3.89 .725 .903 .217 2.76 .363 -.042 1 18 LMT28A 1837 2003 167 7 2 .558 1.54 4.51 .851 .769 .301 2.68 .402 -.003 4 19 LMT29A 1829 2003 175 7 0 .603 1.60 3.53 .680 .713 .267 2.72 .371 -.038 1 20 LMT30B 1847 2003 157 7 0 .536 1.13 2.67 .517 .764 .255 2.43 .295 -.022 1 21 LMT32A 1846 2003 158 7 0 .615 .78 1.56 .334 .681 .316 2.60 .419 .026 4 22 LMT32B 1837 2003 167 7 0 .646 1.05 2.37 .531 .775 .298 2.55 .369 .000 1 23 LMT33A 1822 2003 182 8 0 .712 1.23 3.03 .573 .653 .334 2.52 .280 -.010 1 24 LMT33B 1836 2003 168 7 0 .705 1.68 4.42 .722 .679 .275 2.54 .363 -.017 1 25 LMT34A 1819 2003 185 8 1 .521 1.09 3.71 .608 .768 .306 2.71 .333 -.043 1 26 LMT36B 1823 2003 181 8 0 .639 1.62 4.34 .755 .664 .278 2.85 .496 -.037 2 27 LMT36C 1823 2003 181 8 0 .656 1.41 4.87 .758 .719 .300 2.79 .431 -.043 1 28 LMT36D 1844 2003 160 7 0 .657 1.66 4.37 .794 .780 .258 2.68 .427 .039 1 29 LMT37A 1845 2003 159 7 0 .660 1.53 3.07 .501 .470 .264 2.68 .499 .036 1 30 LMT37B 1846 2003 158 7 0 .616 1.50 3.13 .572 .538 .294 2.85 .509 .001 1 31 LMT38A 1837 2003 167 7 0 .593 .83 4.56 .727 .915 .240 2.79 .462 .036 1 32 LMT38B 1842 2003 162 7 0 .577 1.22 4.01 .842 .786 .330 2.77 .458 -.043 1 33 LMT39A 1829 2003 175 7 0 .667 1.39 6.43 .694 .503 .287 2.70 .432 -.043 1 34 LMT39B 1874 2003 130 6 0 .715 1.47 3.16 .570 .483 .324 2.79 .466 -.050 1 35 LMT40B 1820 1997 178 7 0 .685 1.48 4.34 .927 .832 .282 2.77 .309 -.016 1 36 LMT41B 1827 2003 177 7 0 .575 1.92 4.39 .849 .639 .317 2.75 .514 -.077 1 37 LMT42A 1844 2003 160 7 0 .630 1.32 4.65 .687 .570 .352 2.72 .465 -.026 1 38 LMT42B 1847 1995 149 6 0 .662 1.20 2.67 .474 .544 .315 2.81 .458 -.047 1 39 LMT43A 1831 2003 173 7 0 .595 1.41 4.01 .696 .775 .273 2.72 .366 .004 1 40 LMT43B 1841 2003 163 7 0 .694 1.57 4.02 .802 .738 .342 2.66 .512 .019 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6714 282 6 .607 1.40 8.67 .730 .700 .292 2.97 .417 -.016