Driftless Oaks Larson, Wisconsin - WI040 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 : WI040.CRN Measurement file name : WI040.RWL Date checked : 11AUG21 Checked by : B. Bauer Beginning year : 1864 Ending year : 2014 Principal investigators: E. Larson S. Allen C. Underwood Site name : Driftless Oaks Larson Site location : Wisconsin Species information : QUMA BURR OAK Latitude : 4311 Longitude : -08947 Elevation : 246M Series intercorrelation: 0.601 Avg mean sensitivity : 0.222 Avg standard deviation : 0.705 Avg autocorrelation : 0.570 Number dated series : 8 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Larson 10:18 Wed 11 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 1850 1875 1900 1925 1950 1975 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 LRS001A 1935 2014 .73 .71 .70 2 LRS001B 1943 2014 .65 .64 .54 3 LRS002A 1921 2014 .69 .69 .54 .45 4 LRS002B 1864 2014 .66 .66 .63 .62 .67 .61 5 LRS003A 1961 2014 .57 .65 6 LRS003B 1955 2014 .54 .58 7 LRS004A 1868 2014 .77 .77 .72 .48 .48 .63 8 LRS004B 1876 2014 .72 .60 .53 .63 .52 Av segment correlation .71 .72 .66 .62 .60 .58 PART 7: DESCRIPTIVE STATISTICS: Larson 10:18 Wed 11 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 LRS001A 1935 2014 80 3 0 .719 3.97 6.64 1.052 .293 .241 2.68 .468 .025 2 2 LRS001B 1943 2014 72 3 0 .591 3.97 7.45 1.202 .422 .260 2.61 .466 .013 1 3 LRS002A 1921 2014 94 4 0 .541 1.73 6.65 .790 .790 .199 2.73 .469 -.024 1 4 LRS002B 1864 2014 151 6 0 .627 1.26 2.22 .344 .517 .212 2.53 .344 .024 1 5 LRS003A 1961 2014 54 2 0 .564 4.79 7.18 1.231 .642 .184 2.56 .596 .012 1 6 LRS003B 1955 2014 60 2 0 .557 2.44 4.55 .609 .488 .181 2.61 .494 .018 1 7 LRS004A 1868 2014 147 6 0 .596 1.56 3.17 .596 .640 .240 2.60 .355 -.006 1 8 LRS004B 1876 2014 139 5 0 .592 1.34 2.94 .537 .646 .233 2.65 .422 -.055 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 797 31 0 .601 2.23 7.45 .705 .570 .222 2.73 .426 -.003