Lil Scaly Mountain, North Carolina - nc023
Additional Site Information
N. Pederson H.M. Hopton N. Cook
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 130 !spline stabilized (fixed 50% cutoff)
common period years 1900 2000 !first and last years of common period
site-tree-core mask SSSTTC !site-tree-core separation mask
running rbar 50 25 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 : NC023.CRN
Measurement file name : NC023.RWL
Date checked : 06JUL12
Checked by : B. Bauer
Beginning year : 1599
Ending year : 2003
Principal investigators: N. Pederson H.M. Hopton N. Cook
Site name : Lil Scaly Mountain
Site location : N. Carolina
Species information : QUAL WHITE OAK
Latitude : 3502
Longitude : -08316
Elevation : 1280M
Series intercorrelation: 0.467
Avg mean sensitivity : 0.197
Avg standard deviation : 0.297
Avg autocorrelation : 0.730
Number dated series : 36
Segment length tested : 50
Number problem segments: 38
Pct problem segments : 15.26
PART 5: CORRELATION OF SERIES BY SEGMENTS: Lil Scaly Mountain 13:30 Fri 06 Jul 2012 Page 5
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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 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975
1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024
--- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
1 UMD01a 1697 1819 .63 .67 .64 .59 .40
2 UMD01a 1840 2003 .23B .28A .62 .54 .34 .42 .47
3 UMD01b 1697 1879 .63 .62 .44 .32B .31A .44 .48 .47
4 UMD01b 1900 2003 .48 .54 .42 .51
5 UMD02a 1873 2000 .48 .48 .57 .60 .64 .64
6 UMD02b 1898 2003 .57 .54 .47 .66 .62
7 UMD03a 1850 2003 .32A .55 .68 .73 .78 .79
8 UMD03b 1864 2003 .60 .67 .70 .65 .66 .66
9 UMD04a 1802 2003 .43 .53 .60 .67 .75 .64 .45 .45
10 UMD04b 1826 2003 .54 .62 .63 .65 .65 .62 .60
11 UMD05a 1826 2003 .55 .58 .67 .47 .50 .55 .55
12 UMD06a 1768 2003 .42 .54 .42 .27B .32A .41 .41 .42 .42 .44
13 UMD06b 1792 1969 .44 .42 .46 .45 .31B .26B .38
14 UMD06c 1792 1879 .48 .49 .39 .48
15 UMD07b 1818 1959 .71 .66 .23B .34 .68 .51
16 UMD08a 1783 2003 .47 .69 .69 .56 .58 .46 .43 .14B .11B
17 UMD08b 1795 2003 .62 .62 .70 .57 .59 .76 .60 .33 .34
18 UMD09a 1720 1879 .56 .52 .35 .27A .41 .43 .24B
19 UMD09a 1900 2003 .40 .66 .56 .55
20 UMD09b 1729 1829 .50 .35 .26B .24B
21 UMD09b 1850 2003 .40 .46 .65 .61 .47 .40
22 UMD10a 1774 2003 .45 .43 .43 .50 .47 .45 .39 .39 .63 .61
23 UMD14a 1753 1979 .42 .40B .29A .47 .62 .59 .52 .44 .26B
24 UMD15a 1771 1919 .25B .36 .61 .55 .37 .32A
25 UMD16a 1707 1849 .35 .36 .43 .48 .36
26 UMD16a 1870 2003 .27A .22B .39 .51 .32A .25A
27 UMD16b 1707 1879 .58 .48 .32A .37 .36 .28B .18B
28 UMD16b 1900 2003 .31B .59 .54 .53
29 UMD18a 1693 2003 .45 .42 .53 .52 .49 .68 .70 .35B .33 .43 .46 .60 .62
30 UMD18b 1707 2003 .32A .55 .35 .30B .24A .18B .40 .49 .66 .68 .63 .63
31 UMD20a 1789 1949 .55 .64 .55 .58 .64 .51
32 UMD20b 1771 2003 .40 .45 .66 .50 .50 .48 .38 .39 .39 .37
33 UMD21a 1599 1899 .63 .62 .55 .54 .43 .53 .48 .46 .38 .45 .50 .36
34 UMD21b 1599 1819 .63 .62 .55 .54 .36 .42 .51 .24B .03B
35 UMD21b 1840 1899 .39 .32A
36 UMD21b 1920 1982 .60 .58 .31A
Av segment correlation .63 .62 .55 .54 .50 .50 .50 .39 .40 .48 .48 .43 .50 .53 .53 .49 .51
PART 7: DESCRIPTIVE STATISTICS: Lil Scaly Mountain 13:30 Fri 06 Jul 2012 Page 10
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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 UMD01a 1697 1819 123 5 0 .503 1.01 1.78 .277 .747 .148 2.57 .370 -.023 1
2 UMD01a 1840 2003 164 7 2 .431 .82 1.89 .262 .833 .125 2.72 .450 -.051 1
3 UMD01b 1697 1879 183 8 2 .454 .72 1.57 .250 .818 .157 2.60 .339 -.025 1
4 UMD01b 1900 2003 104 4 0 .467 .87 1.25 .147 .474 .135 2.46 .356 -.001 1
5 UMD02a 1873 2000 128 6 0 .551 1.23 3.79 .471 .626 .258 2.65 .384 -.003 1
6 UMD02b 1898 2003 106 5 0 .590 1.98 3.36 .568 .411 .240 2.44 .380 -.001 2
7 UMD03a 1850 2003 154 6 1 .608 .86 1.74 .216 .417 .219 2.68 .471 -.030 1
8 UMD03b 1864 2003 140 6 0 .652 1.08 2.24 .330 .688 .184 2.66 .429 -.049 1
9 UMD04a 1802 2003 202 8 0 .551 .83 1.77 .249 .654 .195 2.59 .425 .010 1
10 UMD04b 1826 2003 178 7 0 .597 .94 3.12 .516 .917 .180 2.65 .436 -.030 1
11 UMD05a 1826 2003 178 7 0 .544 .80 1.36 .234 .679 .192 2.59 .410 .030 2
12 UMD06a 1768 2003 236 10 2 .407 .76 2.12 .304 .773 .197 2.71 .428 .008 1
13 UMD06b 1792 1969 178 7 2 .370 .56 1.43 .224 .752 .225 2.80 .377 .010 1
14 UMD06c 1792 1879 88 4 0 .429 .89 2.07 .367 .849 .165 2.97 .537 .045 1
15 UMD07b 1818 1959 142 6 1 .473 .93 1.83 .276 .752 .161 2.55 .403 -.038 1
16 UMD08a 1783 2003 221 9 2 .426 .70 1.38 .266 .824 .186 2.87 .456 -.005 1
17 UMD08b 1795 2003 209 9 0 .552 .65 1.31 .281 .802 .231 2.79 .457 -.015 1
18 UMD09a 1720 1879 160 7 2 .347 .53 1.89 .396 .924 .198 2.52 .468 -.040 1
19 UMD09a 1900 2003 104 4 0 .481 .51 .97 .163 .669 .210 2.53 .427 -.059 2
20 UMD09b 1729 1829 101 4 2 .372 .71 1.74 .479 .942 .219 2.60 .451 -.003 1
21 UMD09b 1850 2003 154 6 0 .482 .53 1.15 .229 .810 .198 2.67 .428 -.024 2
22 UMD10a 1774 2003 230 10 0 .477 .76 1.99 .263 .737 .195 2.83 .423 -.007 1
23 UMD14a 1753 1979 227 9 3 .446 .69 1.36 .246 .646 .236 2.52 .411 -.007 1
24 UMD15a 1771 1919 149 6 2 .402 .53 1.27 .182 .758 .178 2.52 .402 -.033 1
25 UMD16a 1707 1849 143 5 0 .410 .80 2.16 .392 .791 .218 2.69 .462 .042 2
26 UMD16a 1870 2003 134 6 4 .337 .55 .94 .152 .612 .205 2.61 .437 -.002 2
27 UMD16b 1707 1879 173 7 3 .402 .80 2.35 .414 .829 .211 2.68 .532 -.009 1
28 UMD16b 1900 2003 104 4 1 .415 .79 1.20 .191 .706 .144 2.58 .483 -.027 2
29 UMD18a 1693 2003 311 13 1 .489 .72 2.19 .295 .721 .248 2.68 .472 -.008 1
30 UMD18b 1707 2003 297 12 4 .420 .86 1.74 .265 .566 .237 2.80 .479 -.031 1
31 UMD20a 1789 1949 161 6 0 .545 1.04 6.17 .600 .657 .185 2.99 .441 -.030 1
32 UMD20b 1771 2003 233 10 0 .435 .84 1.56 .260 .717 .177 2.58 .339 -.041 1
33 UMD21a 1599 1899 301 12 0 .468 .74 1.69 .297 .874 .155 2.68 .356 .009 2
34 UMD21b 1599 1819 221 9 2 .429 .71 1.64 .304 .833 .205 2.71 .483 -.013 1
35 UMD21b 1840 1899 60 2 1 .345 .45 .66 .079 .257 .171 2.70 .523 -.017 1
36 UMD21b 1920 1982 63 3 1 .479 .63 1.37 .185 .655 .185 2.78 .513 .026 1
--- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- --
Total or mean: 6060 249 38 .467 .79 6.17 .297 .730 .197 2.99 .431 -.013