Ecleto Creek, Texas - TX041 Additional Site Information D.W. Stahle M.D. Therrell A.M. Dunne M.K. Cleaveland Purpose of Collection: Climatology Measurement type: Total ring width 1st Detrending method: Negative exponential; if cannot be fitted, then fit a regression line of any slope. 2nd Detrending method: If exp. is fitted, then a cubic spline with half power cutoff equal to series length is fitted; if the exp. cannot be fitted and a regression line is, then a spline with half power cutoff equal to 67% of the series length is fitted; In no case is a spline with half power cutoff less than 100 years fitted. Location of core material: Stored in U. of Arkansas Tree-Ring Lab; Part of the U. of Arkansas Museum collections, Accession No. 95-168. Publication citation: Dunne, A.M., Cleaveland, M.K. and Therrell, M.D. 2000. Tree-ring reconstruction of late Holocene precipitation in South-Central Texas (abstract). American Quaternary Assoc. Program and Abstracts of the 16th Biennial Meeting, Fayetteville, AR. p. 61. COFECHA output: Chronology file name : TX041.CRN Measurement file name : TX041.RWL Date checked : 25SEP06 Checked by : B. Bauer Beginning year : 1695 Ending year : 1996 Principal investigators: D.W. Stahle M.D. Therrell A.M. Dunne M.K. Cleaveland Site name : Ecleto Creek Site location : Texas Species information : QUST POST OAK Latitude : 2927 Longitude : -09755 Elevation : 230M Series intercorrelation: 0.704 Avg mean sensitivity : 0.296 Avg standard deviation : 0.399 Avg autocorrelation : 0.548 Number dated series : 38 Segment length tested : 50 Number problem segments: 2 Pct problem segments : 0.92 PART 5: CORRELATION OF SERIES BY SEGMENTS: Ecleto Creek 15:57 Mon 25 Sep 2006 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 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 ECL01A 1856 1996 .66 .70 .69 .72 .71 2 ECL01B 1788 1996 .58 .55 .59 .74 .70 .69 .78 .75 3 ECL02A 1888 1996 .38 .66 .55 .53 4 ECL02B 1876 1996 .76 .85 .88 .70 5 ECL03A 1695 1996 .87 .89 .88 .81 .79 .71 .61 .60 .74 .83 .81 .71 6 ECL03B 1735 1996 .88 .86 .74 .57 .45 .50 .59 .61 .64 .65 7 ECL03C 1695 1996 .85 .86 .86 .78 .72 .64 .53 .48 .65 .77 .75 .64 8 ECL04A 1891 1996 .88 .88 .85 .85 9 ECL04B 1871 1996 .66 .69 .83 .83 .79 10 ECL05A 1849 1996 .49 .51 .81 .91 .87 .71 11 ECL05B 1878 1996 .86 .90 .84 .62 12 ECL6A 1923 1996 .83 .82 .77 13 ECL07A 1764 1996 .58 .57 .66 .73 .72 .65 .77 .89 .81 14 ECL07B 1848 1996 .39 .43 .72 .78 .85 .77 15 ECL10A 1950 1996 .72 16 ECL11A 1830 1996 .39 .44 .48 .52 .70 .78 17 ECL11B 1827 1996 .35 .53 .64 .67 .80 .84 18 ECL12B 1932 1996 .78 .72 19 ECL13A 1756 1996 .73 .73 .69 .46 .40 .60 .77 .80 .64 20 ECL13B 1794 1996 .76 .70 .67 .64 .73 .86 .85 .70 21 ECL14A 1826 1996 .55 .65 .81 .84 .83 .78 22 ECL14B 1801 1996 .36 .33B .59 .75 .81 .84 .86 23 ECL15A 1906 1996 .93 .91 .88 24 ECL15B 1901 1996 .91 .93 .90 25 ECL16A 1806 1996 .71 .68 .55 .70 .83 .88 .87 26 ECL16B 1822 1996 .66 .66 .65 .74 .83 .90 .83 27 ECL17A 1882 1996 .84 .86 .87 .87 28 ECL17B 1853 1996 .68 .81 .86 .83 .73 29 ECL18A 1912 1996 .72 .80 .81 30 ECL18B 1912 1996 .77 .83 .82 31 ECL19A 1880 1996 .70 .65 .70 .81 32 ECL19B 1830 1996 .38 .56 .57 .65 .72 .76 33 ECL20A 1914 1996 .33 .68 .89 34 ECL21A 1821 1996 .35 .33 .56 .79 .86 .89 .81 35 ECL21B 1833 1996 .34 .58 .74 .88 .86 .80 36 ECL23A 1809 1996 .60 .32B .34 .71 .80 .72 .63 37 ECL23B 1850 1996 .54 .71 .79 .78 .63 38 ECL23C 1789 1996 .78 .72 .50 .46 .68 .77 .61 .52 Av segment correlation .86 .87 .87 .75 .71 .61 .49 .56 .71 .77 .80 .75 PART 7: DESCRIPTIVE STATISTICS: Ecleto Creek 15:57 Mon 25 Sep 2006 Page 7 ----------------------------------------------------------------------------------------------------------------------------------- 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 ECL01A 1856 1996 141 5 0 .687 .94 2.68 .430 .675 .266 2.59 .364 -.037 1 2 ECL01B 1788 1996 209 8 0 .671 .71 2.60 .424 .656 .353 2.84 .513 -.044 1 3 ECL02A 1888 1996 109 4 0 .469 1.32 5.47 .939 .670 .338 2.66 .377 .001 1 4 ECL02B 1876 1996 121 4 0 .739 1.24 4.21 .673 .601 .315 2.76 .408 -.004 1 5 ECL03A 1695 1996 302 12 0 .752 .75 2.64 .269 .583 .225 2.82 .365 -.007 3 6 ECL03B 1735 1996 262 10 0 .650 .67 2.59 .246 .550 .232 2.68 .322 -.030 3 7 ECL03C 1695 1996 302 12 0 .686 .71 3.93 .317 .474 .262 2.83 .366 -.042 1 8 ECL04A 1891 1996 106 4 0 .860 .99 2.47 .446 .323 .399 2.78 .536 -.035 1 9 ECL04B 1871 1996 126 5 0 .748 .89 2.87 .446 .465 .379 2.85 .480 -.049 1 10 ECL05A 1849 1996 148 6 0 .728 1.29 2.70 .544 .690 .258 2.87 .476 .014 1 11 ECL05B 1878 1996 119 4 0 .765 1.12 2.35 .404 .432 .304 2.74 .406 -.030 1 12 ECL6A 1923 1996 74 3 0 .784 2.58 6.54 1.145 .272 .390 2.74 .500 -.054 1 13 ECL07A 1764 1996 233 9 0 .716 .57 1.85 .248 .655 .248 2.72 .456 .011 1 14 ECL07B 1848 1996 149 6 0 .699 .67 1.22 .201 .490 .240 2.68 .503 .011 1 15 ECL10A 1950 1996 47 1 0 .716 1.03 1.61 .263 .395 .230 2.57 .492 .093 1 16 ECL11A 1830 1996 167 6 0 .589 1.03 2.80 .422 .424 .308 2.89 .538 -.007 2 17 ECL11B 1827 1996 170 6 0 .648 .98 2.74 .471 .511 .356 2.75 .496 -.030 2 18 ECL12B 1932 1996 65 2 0 .749 .71 1.39 .229 .383 .281 2.78 .661 -.057 1 19 ECL13A 1756 1996 241 9 0 .646 .61 2.02 .294 .545 .290 2.62 .428 -.040 1 20 ECL13B 1794 1996 203 8 0 .741 .62 1.25 .187 .483 .242 2.44 .315 -.051 1 21 ECL14A 1826 1996 171 6 0 .712 .81 1.86 .279 .650 .215 2.87 .434 -.013 1 22 ECL14B 1801 1996 196 7 1 .655 .68 2.68 .287 .524 .269 3.04 .525 .008 1 23 ECL15A 1906 1996 91 3 0 .903 1.01 2.10 .381 .410 .310 2.54 .416 -.077 1 24 ECL15B 1901 1996 96 3 0 .905 1.05 2.30 .421 .238 .385 2.79 .625 -.084 1 25 ECL16A 1806 1996 191 7 0 .749 .70 1.62 .227 .441 .257 2.70 .335 -.045 1 26 ECL16B 1822 1996 175 7 0 .776 .63 1.99 .233 .463 .263 2.71 .458 -.043 1 27 ECL17A 1882 1996 115 4 0 .845 .98 3.57 .539 .688 .289 2.94 .567 -.021 1 28 ECL17B 1853 1996 144 5 0 .764 .67 1.63 .243 .534 .253 2.59 .378 -.085 1 29 ECL18A 1912 1996 85 3 0 .773 1.34 4.80 1.179 .734 .495 2.64 .567 .004 1 30 ECL18B 1912 1996 85 3 0 .801 .87 2.82 .495 .563 .422 2.78 .579 .001 1 31 ECL19A 1880 1996 117 4 0 .701 1.01 2.47 .433 .748 .240 2.69 .443 .001 1 32 ECL19B 1830 1996 167 6 0 .599 .78 2.47 .344 .614 .289 2.80 .517 -.052 1 33 ECL20A 1914 1996 83 3 0 .542 1.50 4.52 .830 .297 .475 2.83 .614 -.025 1 34 ECL21A 1821 1996 176 7 0 .691 .93 4.09 .537 .606 .374 2.89 .532 -.044 1 35 ECL21B 1833 1996 164 6 0 .736 .98 3.37 .538 .645 .364 2.66 .372 -.060 1 36 ECL23A 1809 1996 188 7 1 .615 .74 3.93 .411 .572 .299 2.85 .398 -.028 1 37 ECL23B 1850 1996 147 5 0 .675 .92 4.15 .587 .727 .275 3.01 .496 -.033 1 38 ECL23C 1789 1996 208 8 0 .640 .54 2.37 .293 .566 .319 2.87 .382 -.100 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 5893 218 2 .704 .86 6.54 .399 .548 .296 3.04 .445 -.031