Driftless Oaks Bohlin Horse Barn, Wisconsin - WI017 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 : WI017.CRN Measurement file name : WI017.RWL Date checked : 09AUG21 Checked by : B. Bauer Beginning year : 1757 Ending year : 1854 Principal investigators: E. Larson S. Allen C. Underwood Site name : Driftless Oaks Bohlin Horse Barn Site location : Wisconsin Species information : QUSP OAK Latitude : 4253 Longitude : -09038 Elevation : 310M Series intercorrelation: 0.455 Avg mean sensitivity : 0.221 Avg standard deviation : 0.589 Avg autocorrelation : 0.762 Number dated series : 5 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 25.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Bohlin Horse Barn 16:39 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 1799 1824 1849 1874 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 BHB001A 1757 1854 .41 .50 .65 .35 2 BHB001B 1770 1853 .57 .60 .76 .77 3 BHB001C 1819 1854 .73 4 BHB009A 1771 1854 .05B .08B .57 .56 5 BHB009B 1759 1838 .36 .31A .32A Av segment correlation .35 .37 .60 .56 PART 7: DESCRIPTIVE STATISTICS: Bohlin Horse Barn 16:39 Mon 09 Aug 2021 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 BHB001A 1757 1854 98 4 0 .377 1.11 3.08 .674 .825 .243 2.76 .597 -.048 1 2 BHB001B 1770 1853 84 4 0 .659 1.13 3.89 .538 .684 .206 2.94 .460 -.020 1 3 BHB001C 1819 1854 36 1 0 .726 1.07 1.65 .290 .484 .211 2.42 .425 -.070 1 4 BHB009A 1771 1854 84 4 2 .289 1.44 3.15 .661 .794 .229 2.78 .516 -.062 1 5 BHB009B 1759 1838 80 3 2 .386 1.18 3.09 .596 .859 .208 2.44 .465 -.076 3 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 382 16 4 .455 1.20 3.89 .589 .762 .221 2.94 .505 -.053