NOTE: All statistics reported below describe the raw measurement file, not the chronology itself. This file should be viewed with a non-proportional font. Chronology file name : IA003.CRN Measurement file name : IA003.RWL Date checked : 16DEC94 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1715 Ending year : 1981 Principal investigators: DANIEL N. DUVICK Site name : LACEY - KEOSAUQUA STATE PARK Site location : IOWA, USA Species information : QUAL WHITE OAK Latitude : 4043N Longitude : 9158W Elevation : 200 M Series intercorrelation: 0.655 Avg mean sensitivity : 0.244 Avg standard deviation : 0.780 Avg autocorrelation : 0.806 Number dated series : 27 Segment length tested : 50 Number problem segments: 5 Pct problem segments : 2.60 Are there obvious misdated series? NO Number possible misdated series : N/A Percent misdated series : 0.00 Comments: #27 LK514B 1925-1981 IS PROBABLY MISDATED - ENTIRE SERIES SHOULD BE DELETED EXCELLENT HIGH QUALITY CHRONOLOGY 1 PART 5: CORRELATION BY SEGMENTS OF SERIES: 15:54 Fri 16 DEC 1994 Page 2 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: __A = correlation under 0.3281 but highest as dated; __B = correlation higher at other than dated position Seq Series Interval 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 1 LKS01A 1850 1981 - - - - - - .51 .48 .55 .71 .74 - - - - - - - - - + 2 LKS01B 1889 1981 - - - - - - - .63 .71 .83 .82 - - - - - - - - - + 3 LKS02A 1849 1981 - - - - - .73 .72 .72 .77 .75 .78 - - - - - - - - - + 4 LKS02B 1855 1981 - - - - - - .59 .74 .83 .83 .84 - - - - - - - - - + 5 LKS03A 1762 1981 - - .51 .56 .53 .55 .61 .61 .67 .64 .65 - - - - - - - - - + 6 LKS03B 1839 1981 - - - - - .46 .61 .77 .83 .81 .81 - - - - - - - - - + 7 LKS04A 1772 1981 - - .68 .67 .68 .60 .55 .77 .88 .79 .67 - - - - - - - - - + 8 LKS04B 1762 1981 - - .67 .70 .69 .62 .54 .58 .77 .79 .72 - - - - - - - - - + 9 LKS05A 1775 1981 - - - .48 .56 .72 .46 .53 .77 .43 .37 - - - - - - - - - + 10 LKS05B 1728 1981 - .48 .63 .65 .59 .63 .63 .70 .79 .62 .57 - - - - - - - - - + 11 LKS05C 1721 1857 .42 .46 .52 .67 .66 .73 - - - - - - - - - - - - - - + 12 LKS06A 1774 1966 - - .61 .60 .59 .45 .57 .75 .76 .68 - - - - - - - - - - + 13 LKS07A 1800 1981 - - - - .70 .48 .26 .58 .77 .69 .70 - - - - - - - - - + ___A 14 LKS07B 1721 1981 .33 .42 .29 .47 .64 .38 .28 .62 .79 .80 .82 - - - - - - - - - + ___A ___A 15 LKS08A 1894 1981 - - - - - - - .79 .80 .80 .84 - - - - - - - - - + 16 LKS09A 1743 1981 - .58 .58 .85 .80 .77 .81 .82 .86 .83 .85 - - - - - - - - - + 17 LKS09B 1826 1981 - - - - - .76 .72 .77 .86 .85 .87 - - - - - - - - - + 18 LKS10A 1715 1981 .58 .55 .48 .56 .49 .39 .60 .69 .64 .62 .68 - - - - - - - - - + 19 LKS10B 1800 1981 - - - - .64 .60 .64 .71 .78 .72 .76 - - - - - - - - - + 20 LKS11A 1790 1981 - - - .50 .69 .69 .59 .68 .67 .71 .79 - - - - - - - - - + 21 LKS11B 1854 1981 - - - - - - .68 .76 .79 .76 .80 - - - - - - - - - + 22 LKS12A 1789 1981 - - - .74 .72 .65 .62 .75 .87 .84 .83 - - - - - - - - - + 23 LKS12B 1782 1981 - - - .68 .71 .59 .55 .73 .82 .76 .70 - - - - - - - - - + 24 LKS13A 1800 1981 - - - - .60 .49 .39 .50 .67 .79 .79 - - - - - - - - - + 25 LKS13B 1778 1981 - - - .51 .72 .73 .67 .77 .81 .85 .81 - - - - - - - - - + 26 LKS14A 1900 1981 - - - - - - - - .51 .52 .49 - - - - - - - - - + 27 LKS14B 1879 1981 - - - - - - - .45 .49 .26 .36 - - - - - - - - - + ___B ___B 1 PART 7: DESCRIPTIVE STATISTICS: 15:54 Fri 16 DEC 1994 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- 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 LKS01A 1850 1981 132 5 0 0.628 1.13 2.66 0.338 0.674 0.157 1.98 0.292 -0.030 1 2 LKS01B 1889 1981 93 4 0 0.728 2.08 8.28 1.429 0.822 0.194 2.06 0.371 -0.033 1 3 LKS02A 1849 1981 133 6 0 0.763 1.69 4.13 0.742 0.828 0.188 1.93 0.226 -0.013 1 4 LKS02B 1855 1981 127 5 0 0.751 2.63 7.04 1.498 0.818 0.254 1.78 0.265 0.023 1 5 LKS03A 1762 1981 220 9 0 0.595 1.26 3.71 0.788 0.865 0.275 2.01 0.298 0.027 1 6 LKS03B 1839 1981 143 6 0 0.720 2.27 3.81 0.651 0.505 0.237 1.98 0.328 0.030 2 7 LKS04A 1772 1981 210 9 0 0.674 1.61 4.56 1.039 0.870 0.218 1.94 0.281 -0.032 1 8 LKS04B 1762 1981 220 9 0 0.662 1.10 3.23 0.665 0.842 0.235 2.12 0.298 0.031 1 9 LKS05A 1775 1981 207 8 0 0.512 0.87 2.39 0.424 0.763 0.219 1.95 0.326 -0.025 1 10 LKS05B 1728 1981 254 10 0 0.600 0.86 2.94 0.470 0.829 0.223 2.21 0.379 -0.002 1 11 LKS05C 1721 1857 137 6 0 0.578 0.97 2.95 0.548 0.785 0.273 2.04 0.357 -0.020 1 12 LKS06A 1774 1966 193 8 0 0.622 1.19 5.72 0.887 0.887 0.217 2.04 0.311 -0.022 3 13 LKS07A 1800 1981 182 7 1 0.630 1.14 6.70 1.216 0.911 0.239 1.92 0.290 -0.034 2 14 LKS07B 1721 1981 261 11 2 0.543 1.24 7.30 1.372 0.894 0.287 2.02 0.328 -0.007 2 15 LKS08A 1894 1981 88 4 0 0.814 1.41 3.07 0.479 0.574 0.246 2.10 0.359 -0.019 1 16 LKS09A 1743 1981 239 10 0 0.776 0.97 2.69 0.529 0.770 0.309 2.03 0.306 0.020 1 17 LKS09B 1826 1981 156 6 0 0.802 1.52 3.06 0.478 0.565 0.235 2.02 0.385 0.027 1 18 LKS10A 1715 1981 267 11 0 0.585 0.99 4.65 0.766 0.896 0.260 1.93 0.269 -0.015 1 19 LKS10B 1800 1981 182 7 0 0.695 1.36 4.42 0.901 0.839 0.277 2.27 0.423 0.014 1 20 LKS11A 1790 1981 192 8 0 0.675 1.36 3.57 0.632 0.776 0.248 1.83 0.270 -0.021 1 21 LKS11B 1854 1981 128 5 0 0.762 1.57 3.93 0.850 0.846 0.213 1.86 0.256 -0.010 2 22 LKS12A 1789 1981 193 8 0 0.761 0.97 2.87 0.634 0.842 0.269 2.04 0.391 0.007 1 23 LKS12B 1782 1981 200 8 0 0.672 0.98 4.11 0.785 0.886 0.253 2.22 0.420 0.003 1 24 LKS13A 1800 1981 182 7 0 0.615 1.14 3.00 0.532 0.765 0.244 2.12 0.436 -0.021 2 25 LKS13B 1778 1981 204 8 0 0.715 1.01 3.38 0.660 0.853 0.256 2.01 0.295 0.007 1 26 LKS14A 1900 1981 82 3 0 0.483 2.19 7.15 0.949 0.626 0.219 2.00 0.304 0.013 1 27 LKS14B 1879 1981 103 4 2 0.408 2.84 6.30 1.259 0.759 0.223 1.90 0.389 -0.021 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4728 192 5 0.655 1.31 8.28 0.780 0.806 0.244 2.27 0.327 -0.004