Driftless Oaks Mahoney, Wisconsin - WI042 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 : WI042.CRN Measurement file name : WI042.RWL Date checked : 11AUG21 Checked by : B. Bauer Beginning year : 1827 Ending year : 2013 Principal investigators: E. Larson S. Allen C. Underwood Site name : Driftless Oaks Mahoney Site location : Wisconsin Species information : QUMA BURR OAK Latitude : 4244 Longitude : -09029 Elevation : 299M Series intercorrelation: 0.537 Avg mean sensitivity : 0.204 Avg standard deviation : 0.863 Avg autocorrelation : 0.639 Number dated series : 10 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 8.70 PART 5: CORRELATION OF SERIES BY SEGMENTS: Mahoney 10:20 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 MHN001A 1827 2013 .15B .36B .54 .59 .66 .67 2 MHN002A 1923 2013 .39 .43 .50 .61 3 MHN002B 1913 2013 .46 .66 .61 .47 4 MHN003A 1905 2013 .54 .48 .67 .68 5 MHN003B 1884 2013 .27A .38 .50 .62 .64 6 MHN004A 1861 2013 .32B .57 .72 .66 .69 .73 7 MHN004B 1908 2013 .63 .66 .59 .52 8 MHN005A 1885 2013 .62 .62 .62 .65 .39 9 MHN005B 1889 2013 .51 .65 .72 .74 .60 10 MHN006A 1932 2012 .56 .56 .44 Av segment correlation .23 .47 .55 .59 .63 .57 PART 7: DESCRIPTIVE STATISTICS: Mahoney 10:20 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 MHN001A 1827 2013 187 6 2 .478 2.17 4.89 .932 .784 .209 2.56 .306 -.024 1 2 MHN002A 1923 2013 91 4 0 .463 2.95 4.74 .764 .631 .191 2.58 .586 .038 1 3 MHN002B 1913 2013 101 4 0 .515 3.35 9.47 1.466 .744 .205 2.60 .428 .045 4 4 MHN003A 1905 2013 109 4 0 .583 2.80 4.40 .742 .726 .154 2.91 .464 -.022 1 5 MHN003B 1884 2013 130 5 1 .503 2.93 5.36 .752 .638 .173 2.64 .511 -.009 1 6 MHN004A 1861 2013 153 6 1 .574 2.41 5.08 .911 .694 .225 2.73 .462 -.025 1 7 MHN004B 1908 2013 106 4 0 .586 2.89 4.74 .706 .399 .208 2.52 .406 -.036 1 8 MHN005A 1885 2013 129 5 0 .569 2.50 4.66 .723 .474 .236 2.63 .435 .050 1 9 MHN005B 1889 2013 125 5 0 .635 2.61 4.93 .749 .554 .212 2.80 .419 .047 1 10 MHN006A 1932 2012 81 3 0 .419 2.42 5.12 .921 .669 .209 2.71 .457 .004 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1212 46 4 .537 2.66 9.47 .863 .639 .204 2.91 .437 .004