Chronology file name : AR067.CRN Measurement file name : AR067.RWL Date checked : 10MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1764 Ending year : 1976 Principal investigators: D.Stahle Site name : Ellen Cockran Hollow Site location : Arkansas Species information : PIEC SHORTLEAF PINE Latitude : 3612 Longitude : -09222 Elevation : 274M Series intercorrelation: 0.623 Avg mean sensitivity : 0.303 Avg standard deviation : 0.540 Avg autocorrelation : 0.681 Number dated series : 15 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 4.21 PART 5: CORRELATION OF SERIES BY SEGMENTS: ar067.rwl 14:09 Thu 10 Mar 2005 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 1775 1800 1825 1850 1875 1900 1925 1950 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 ECH01A 1883 1976 .58 .60 .58 .58 2 ECH01B 1865 1975 .55 .69 .67 .74 .75 3 ECH02A 1847 1976 .54 .54 .79 .60 .53 .57 4 ECH02B 1876 1976 .71 .72 .76 .77 5 ECH03A 1884 1976 .75 .74 .73 .70 6 ECH03B 1870 1976 .78 .76 .70 .71 .70 7 ECH04A 1813 1976 .54 .63 .72 .83 .70 .68 .68 8 ECH04B 1793 1971 .42 .54 .65 .62 .72 .77 .73 9 ECH05A 1764 1976 .32B .30A .44 .58 .73 .77 .78 .75 10 ECH05B 1783 1976 .42 .30A .31A .48 .68 .73 .72 .68 11 ECH06A 1808 1976 .52 .61 .74 .76 .66 .62 .63 12 ECH06B 1828 1976 .60 .64 .73 .73 .69 .70 13 ECH07A 1785 1975 .52 .44 .56 .59 .67 .65 .75 .74 14 ECH07B 1785 1975 .56 .57 .67 .68 .78 .72 .73 .72 15 ECH07C 1785 1975 .41 .52 .60 .60 .79 .77 .59 .57 Av segment correlation .44 .47 .56 .63 .73 .70 .69 .68 PART 7: DESCRIPTIVE STATISTICS: ar067.rwl 14:09 Thu 10 Mar 2005 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 ECH01A 1883 1976 94 4 0 .651 1.99 5.16 .840 .645 .282 2.67 .448 -.074 1 2 ECH01B 1865 1975 111 5 0 .650 1.52 4.68 .719 .548 .339 2.71 .469 -.004 1 3 ECH02A 1847 1976 130 6 0 .588 .46 1.25 .230 .692 .311 2.74 .370 -.055 1 4 ECH02B 1876 1976 101 4 0 .739 .56 2.28 .356 .709 .318 3.01 .519 -.048 1 5 ECH03A 1884 1976 93 4 0 .740 .58 1.78 .326 .666 .355 2.77 .434 -.058 1 6 ECH03B 1870 1976 107 5 0 .732 .61 2.00 .330 .730 .278 2.59 .434 -.016 1 7 ECH04A 1813 1976 164 7 0 .633 .86 2.34 .449 .674 .310 2.73 .423 -.055 1 8 ECH04B 1793 1971 179 7 0 .617 .75 2.67 .375 .686 .297 2.70 .410 -.046 1 9 ECH05A 1764 1976 213 8 2 .563 1.27 3.45 .722 .694 .318 2.60 .366 -.030 1 10 ECH05B 1783 1976 194 8 2 .501 1.15 2.98 .640 .684 .340 2.29 .225 -.033 1 11 ECH06A 1808 1976 169 7 0 .629 1.31 4.18 .644 .628 .338 2.81 .428 -.014 1 12 ECH06B 1828 1976 149 6 0 .661 1.53 6.22 .974 .621 .370 2.84 .474 -.023 1 13 ECH07A 1785 1975 191 8 0 .599 1.03 2.23 .429 .720 .235 2.63 .385 .002 1 14 ECH07B 1785 1975 191 8 0 .664 1.24 2.53 .477 .732 .242 2.59 .430 .012 1 15 ECH07C 1785 1975 191 8 0 .573 1.09 2.40 .490 .723 .261 2.60 .327 .046 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2277 95 4 .623 1.08 6.22 .540 .681 .303 3.01 .398 -.022