Driftless Oaks Duck Egg County Forest, Wisconsin - WI028 Additional Site Information Evan Larson, Sara Allen, Chris Underwood Reference: Evan R. Larson, Sara A. Allen, Chris A. Underwood. 2020. The Driftless Oaks: A new network of tree-ring chronologies to improve regional perspectives of drought in the Upper Midwest, USA. Progress in Physical Geography, Vol. 45, Issue 3, pp. 375-406, June 2021. doi: 10.1177/0309133320960670 Keywords: Drought, Driftless Area, North American Drought Atlas, Dendrochronology, crop yield, Iowa, Wisconsin Funding Sources: University of Wisconsin Water Resources Institute, University of Wisconsin - Platteville Pioneer Academic Center for Community Engangement WR13R003 COFECHA output: Chronology file name : WI028.CRN Measurement file name : WI028.RWL Date checked : 09AUG21 Checked by : B. Bauer Beginning year : 1747 Ending year : 2014 Principal investigators: E. Larson S. Allen C. Underwood Site name : Driftless Oaks Duck Egg County Forest Site location : Wisconsin Species information : QUMA BURR OAK Latitude : 4336 Longitude : -09101 Elevation : 339M Series intercorrelation: 0.514 Avg mean sensitivity : 0.176 Avg standard deviation : 0.246 Avg autocorrelation : 0.622 Number dated series : 14 Segment length tested : 50 Number problem segments: 11 Pct problem segments : 12.36 PART 5: CORRELATION OF SERIES BY SEGMENTS: Duck Egg Forest 16:53 Mon 09 Aug 2021 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 DEG001A 1838 2014 .53 .63 .72 .57 .63 .63 .59 2 DEG001B 1864 2014 .62 .51 .59 .73 .70 .53 3 DEG002A 1826 2014 .45 .70 .74 .78 .70 .72 .75 4 DEG002B 1843 2014 .67 .69 .74 .68 .58 .49 .54 5 DEG003A 1850 2014 .49 .62 .52 .53 .62 .49 6 DEG003B 1860 2014 .56 .57 .43 .39 .44 .56 7 DEG004A 1917 2014 .60 .63 .68 .59 8 DEG004B 1865 2014 .23B .35B .58 .59 .54 .49 9 DEG005A 1912 2014 .54 .34 .26A .29B 10 DEG005B 1850 2014 .36 .68 .71 .47 .51 .46 11 DEG006A 1901 2014 .52 .40 .40 .44 12 DEG006B 1856 2014 .11B .20B .58 .57 .54 .42 13 DEG007A 1757 2014 .45 .41 .29A .28B .24B .40 .69 .76 .66 .63 14 DEG007B 1747 2014 .45 .41 .33B .37 .41 .27A .39 .74 .69 .58 Av segment correlation .45 .41 .31 .46 .46 .53 .59 .58 .56 .53 PART 7: DESCRIPTIVE STATISTICS: Duck Egg Forest 16:53 Mon 09 Aug 2021 Page 8 ----------------------------------------------------------------------------------------------------------------------------------- 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 DEG001A 1838 2014 177 7 0 .587 .85 1.78 .237 .575 .191 2.69 .474 -.070 1 2 DEG001B 1864 2014 151 6 0 .586 .92 2.84 .315 .689 .179 2.86 .542 -.022 1 3 DEG002A 1826 2014 189 7 0 .651 .94 2.05 .295 .591 .219 2.63 .402 .009 1 4 DEG002B 1843 2014 172 7 0 .617 .98 1.94 .293 .571 .203 2.73 .442 -.007 1 5 DEG003A 1850 2014 165 6 0 .531 .75 1.73 .254 .801 .153 2.65 .436 -.069 1 6 DEG003B 1860 2014 155 6 0 .472 .69 1.77 .229 .802 .156 2.57 .364 -.024 1 7 DEG004A 1917 2014 98 4 0 .569 1.49 4.81 .478 .590 .164 2.63 .486 -.033 1 8 DEG004B 1865 2014 150 6 2 .474 1.51 2.74 .371 .489 .191 2.63 .424 -.018 1 9 DEG005A 1912 2014 103 4 2 .420 .59 .95 .127 .493 .167 2.76 .498 .037 1 10 DEG005B 1850 2014 165 6 0 .492 .64 1.26 .155 .516 .169 2.70 .455 .006 1 11 DEG006A 1901 2014 114 4 0 .424 .70 1.00 .110 .520 .121 2.57 .416 -.055 1 12 DEG006B 1856 2014 159 6 2 .425 .63 1.02 .128 .604 .146 2.85 .486 -.056 1 13 DEG007A 1757 2014 258 10 3 .472 .65 2.74 .269 .587 .186 2.79 .453 -.030 1 14 DEG007B 1747 2014 268 10 2 .461 .62 1.26 .204 .747 .174 2.72 .374 -.030 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2324 89 11 .514 .82 4.81 .246 .622 .176 2.86 .441 -.027