Norfork Lake, Arkansas - AR060 Additional Site Information D.W. Stahle M.D. Therrell 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. 95-57. COFECHA output: Chronology file name : AR060.CRN Measurement file name : AR060.RWL Date checked : 10MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1637 Ending year : 1993 Principal investigators: D.W. Stahle M.D. Therrell M.K. Cleaveland Site name : Norfork Lake Site location : Arkansas Species information : QUST POST OAK Latitude : 3618 Longitude : -09212 Elevation : 200M Series intercorrelation: 0.579 Avg mean sensitivity : 0.207 Avg standard deviation : 0.289 Avg autocorrelation : 0.650 Number dated series : 46 Segment length tested : 50 Number problem segments: 17 Pct problem segments : 4.56 PART 5: CORRELATION OF SERIES BY SEGMENTS: ar060.rwl 14:07 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 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 NOR03A 1730 1850 .29B .39 .44 .67 .65 2 NOR05A 1770 1993 .52 .50 .63 .43 .46 .71 .73 .60 .40 3 NOR05B 1738 1993 .42 .37 .50 .60 .39 .46 .80 .63 .38 .52 4 NOR06A 1734 1993 .34 .27A .44 .61 .24B .23B .78 .78 .63 .56 5 NOR06B 1737 1993 .31A .41 .17B .34B .54 .51 .70 .69 .42 .45 6 NOR07A 1730 1993 .58 .66 .66 .60 .65 .71 .68 .56 .53 .48 7 NOR07B 1740 1993 .58 .61 .66 .64 .55 .47 .63 .69 .56 .54 8 NOR09A 1780 1993 .70 .71 .69 .76 .79 .75 .61 .63 9 NOR09B 1789 1993 .65 .63 .62 .75 .82 .73 .56 .50 10 NOR10A 1742 1993 .62 .64 .62 .54 .54 .40 .54 .69 .70 .65 11 NOR10B 1742 1993 .51 .52 .49 .46 .51 .26B .41 .60 .53 .54 12 NOR11A 1754 1993 .52 .61 .80 .62 .33A .28B .52 .63 .68 13 NOR11B 1754 1992 .50 .55 .73 .66 .60 .63 .68 .64 .65 14 NOR12A 1796 1993 .46 .46 .37 .38 .70 .83 .76 .47 15 NOR12B 1743 1993 .54 .57 .75 .68 .62 .63 .79 .86 .60 .45 16 NOR13B 1810 1993 .39 .52 .61 .63 .69 .67 .66 17 NOR14A 1825 1992 .39 .53 .80 .78 .59 .63 18 NOR14B 1840 1992 .55 .61 .84 .78 .55 .62 19 NOR15A 1753 1993 .60 .75 .74 .77 .69 .73 .63 .43 .43 20 NOR15B 1758 1975 .65 .65 .70 .66 .69 .80 .75 .64 .63 21 NOR16A 1755 1993 .41 .36 .36 .50 .63 .77 .78 .66 .58 22 NOR16B 1775 1993 .46 .63 .63 .67 .80 .78 .72 .71 23 NOR17A 1790 1993 .40 .54 .45 .50 .62 .59 .54 .58 24 NOR17B 1746 1993 .59 .55 .62 .66 .52 .43 .53 .56 .26B .23A 25 NOR18A 1840 1993 .51 .52 .70 .68 .53 .48 26 NOR19A 1775 1993 .51 .59 .64 .72 .85 .79 .76 .80 27 NOR19B 1793 1993 .46 .62 .64 .74 .78 .70 .53 .55 28 NOR20A 1770 1993 .44 .51 .64 .59 .55 .73 .71 .46 .52 29 NOR20B 1797 1993 .61 .60 .42 .24A .54 .62 .49 .55 30 NOR21A 1786 1993 .61 .66 .70 .70 .79 .80 .71 .71 31 NOR21B 1832 1993 .70 .60 .74 .81 .60 .57 32 NOR22A 1794 1993 .63 .55 .49 .39 .56 .61 .54 .54 33 NOR22B 1740 1993 .42 .49 .35 .39 .70 .73 .67 .55 .51 .62 34 NOR23A 1812 1993 .74 .76 .81 .73 .67 .65 .63 35 NOR23B 1827 1993 .78 .74 .73 .70 .59 .71 36 NOR24A 1789 1950 .35 .33 .60 .72 .58 .48 .47 37 NOR25A 1855 1993 .73 .74 .64 .52 .66 38 NOR25B 1823 1993 .63 .64 .50 .65 .71 .61 .60 39 NOR26A 1799 1993 .65 .59 .53 .51 .75 .79 .66 .65 40 NOR28A 1747 1993 .43 .42 .42 .39 .39 .53 .71 .64 .54 .54 41 NOR28B 1747 1993 .43 .44 .42 .29A .41 .56 .78 .78 .47 .39 42 NOR29A 1670 1993 .13B .10B .20A .50 .41 .49 .62 .43 .45 .64 .52 .43 .64 43 NOR29B 1818 1993 .55 .50 .59 .80 .67 .36 .54 44 NOR46A 1640 1750 .53 .62 .60 .56 .56 45 NOR46B 1637 1750 .75 .72 .74 .58 .57 46 NOR46C 1644 1749 .44 .54 .61 .58 Av segment correlation .57 .50 .51 .48 .48 .49 .53 .58 .56 .56 .70 .69 .56 .57 PART 7: DESCRIPTIVE STATISTICS: ar060.rwl 14:07 Thu 10 Mar 2005 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 NOR03A 1730 1850 121 5 1 .407 .62 1.42 .237 .821 .174 2.56 .385 .021 2 2 NOR05A 1770 1993 224 9 0 .543 .65 1.26 .199 .714 .165 2.87 .467 -.055 2 3 NOR05B 1738 1993 256 10 0 .508 .65 1.36 .210 .677 .204 2.58 .330 -.020 1 4 NOR06A 1734 1993 260 10 3 .509 .65 2.55 .375 .806 .244 2.79 .379 -.009 1 5 NOR06B 1737 1993 257 10 3 .462 .56 2.54 .294 .745 .220 2.84 .351 -.008 1 6 NOR07A 1730 1993 264 10 0 .600 .70 3.11 .324 .725 .243 2.76 .361 -.045 1 7 NOR07B 1740 1993 254 10 0 .576 .71 3.29 .378 .841 .199 2.87 .458 -.046 1 8 NOR09A 1780 1993 214 8 0 .704 .95 1.73 .221 .592 .168 2.62 .408 -.009 1 9 NOR09B 1789 1993 205 8 0 .656 1.01 1.84 .204 .459 .158 2.75 .458 -.003 1 10 NOR10A 1742 1993 252 10 0 .586 .75 1.76 .347 .806 .221 2.63 .422 .002 2 11 NOR10B 1742 1993 252 10 1 .465 .71 1.61 .318 .821 .231 2.77 .371 .009 1 12 NOR11A 1754 1993 240 9 2 .542 .75 1.60 .227 .636 .199 2.57 .350 -.026 2 13 NOR11B 1754 1992 239 9 0 .606 .93 1.76 .270 .625 .193 2.61 .420 -.032 1 14 NOR12A 1796 1993 198 8 0 .532 .64 3.22 .302 .720 .191 2.99 .465 -.026 1 15 NOR12B 1743 1993 251 10 0 .633 .80 2.08 .240 .581 .187 2.86 .359 -.014 1 16 NOR13B 1810 1993 184 7 0 .591 .86 1.90 .332 .691 .214 2.56 .404 -.034 1 17 NOR14A 1825 1992 168 6 0 .601 1.01 2.37 .317 .544 .203 2.90 .449 .043 2 18 NOR14B 1840 1992 153 6 0 .646 1.28 2.09 .359 .637 .181 2.61 .421 -.017 1 19 NOR15A 1753 1993 241 9 0 .614 .67 1.33 .227 .712 .201 2.60 .331 -.045 1 20 NOR15B 1758 1975 218 9 0 .680 .93 2.98 .338 .640 .213 2.74 .431 -.033 1 21 NOR16A 1755 1993 239 9 0 .536 .93 2.43 .441 .791 .230 2.86 .527 -.006 1 22 NOR16B 1775 1993 219 8 0 .671 .86 2.15 .390 .727 .265 2.69 .378 -.025 1 23 NOR17A 1790 1993 204 8 0 .530 .59 1.14 .131 .362 .185 2.75 .462 -.023 1 24 NOR17B 1746 1993 248 10 2 .479 .71 1.50 .167 .486 .177 2.57 .419 .016 1 25 NOR18A 1840 1993 154 6 0 .570 .75 2.20 .300 .645 .217 2.96 .427 -.066 1 26 NOR19A 1775 1993 219 8 0 .708 .82 2.52 .350 .754 .233 2.67 .462 -.017 1 27 NOR19B 1793 1993 201 8 0 .617 .93 1.81 .314 .592 .230 2.71 .416 -.006 1 28 NOR20A 1770 1993 224 9 0 .592 .99 2.84 .370 .804 .169 2.64 .302 -.035 1 29 NOR20B 1797 1993 197 8 1 .524 .81 3.17 .348 .754 .199 2.78 .370 -.015 1 30 NOR21A 1786 1993 208 8 0 .701 .91 1.73 .283 .403 .273 2.62 .399 -.026 1 31 NOR21B 1832 1993 162 6 0 .692 1.11 2.20 .314 .421 .239 2.86 .528 -.007 2 32 NOR22A 1794 1993 200 8 0 .529 .76 1.59 .221 .652 .175 2.69 .401 -.039 1 33 NOR22B 1740 1993 254 10 0 .561 .62 2.27 .191 .581 .181 2.75 .308 -.044 1 34 NOR23A 1812 1993 182 7 0 .708 .89 1.49 .192 .512 .155 2.62 .296 .016 1 35 NOR23B 1827 1993 167 6 0 .709 .89 1.55 .191 .447 .173 2.62 .429 .002 1 36 NOR24A 1789 1950 162 7 0 .523 .94 2.17 .320 .774 .178 2.73 .522 -.018 1 37 NOR25A 1855 1993 139 5 0 .665 1.20 2.36 .369 .645 .189 2.55 .438 -.016 5 38 NOR25B 1823 1993 171 7 0 .627 1.16 2.13 .292 .609 .172 2.60 .359 -.009 1 39 NOR26A 1799 1993 195 8 0 .645 .63 3.08 .314 .532 .258 3.09 .481 -.009 1 40 NOR28A 1747 1993 247 10 0 .524 .90 2.53 .328 .734 .192 2.76 .403 -.044 1 41 NOR28B 1747 1993 247 10 1 .491 .86 1.95 .352 .826 .185 2.72 .381 .010 1 42 NOR29A 1670 1993 324 13 3 .448 .70 2.69 .256 .572 .202 2.69 .388 -.016 1 43 NOR29B 1818 1993 176 7 0 .596 .74 1.37 .156 .313 .183 2.72 .405 -.064 1 44 NOR46A 1640 1750 111 5 0 .547 .78 1.51 .330 .562 .337 2.80 .594 .040 1 45 NOR46B 1637 1750 114 5 0 .684 .86 2.10 .390 .581 .320 2.62 .443 -.037 1 46 NOR46C 1644 1749 106 4 0 .487 .85 1.89 .387 .695 .310 2.73 .513 .023 3 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 9521 373 17 .579 .81 3.29 .289 .650 .207 3.09 .408 -.018