Driftless Oaks Shake Rag Alley, Wisconsin - WI053 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 : WI053.CRN Measurement file name : WI053.RWL Date checked : 11AUG21 Checked by : B. Bauer Beginning year : 1751 Ending year : 1853 Principal investigators: E. Larson S. Allen C. Underwood Site name : Driftless Oaks Shake Rag Alley Site location : Wisconsin Species information : QUSP OAK Latitude : 4252 Longitude : -09011 Elevation : 305M Series intercorrelation: 0.501 Avg mean sensitivity : 0.203 Avg standard deviation : 0.362 Avg autocorrelation : 0.745 Number dated series : 4 Segment length tested : 50 Number problem segments: 1 Pct problem segments : 10.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Shake Rag Alley 10:34 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 1750 1775 1800 1799 1824 1849 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 SRAN10E 1766 1833 .46 .47 .64 2 SRAN10W 1773 1829 .46 .50 .48 3 SRAS10E 1751 1831 .60 .53 .54 4 SRAS10W 1819 1853 .66B Av segment correlation .51 .50 .58 PART 7: DESCRIPTIVE STATISTICS: Shake Rag Alley 10:34 Wed 11 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 SRAN10E 1766 1833 68 3 0 .476 .81 3.90 .576 .788 .265 2.57 .440 -.120 1 2 SRAN10W 1773 1829 57 3 0 .460 .57 .98 .166 .771 .156 2.44 .504 .063 1 3 SRAS10E 1751 1831 81 3 0 .527 .89 2.41 .287 .716 .165 2.62 .515 -.084 1 4 SRAS10W 1819 1853 35 1 1 .657 .78 2.13 .439 .690 .247 2.81 .586 -.255 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 241 10 1 .501 .78 3.90 .362 .745 .203 2.81 .502 -.084