Driftless Oaks White Pine Hollow update, Iowa - IA037 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 Notes: White Pine Hollow update: 42.627N, 91.106W, 320m. Funding Sources: University of Wisconsin Water Resources Institute, University of Wisconsin - Platteville Pioneer Academic Center for Community Engangement WR13R003 COFECHA output: Chronology file name : IA037.CRN Measurement file name : IA037.RWL Date checked : 09AUG21 Checked by : B. Bauer Beginning year : 1783 Ending year : 2017 Principal investigators: E. Larson S. Allen C. Underwood Site name : Driftless Oaks White Pine Hollow update Site location : Iowa Species information : QUAL WHITE OAK Latitude : 4238 Longitude : -09106 Elevation : 320M Series intercorrelation: 0.511 Avg mean sensitivity : 0.197 Avg standard deviation : 0.346 Avg autocorrelation : 0.603 Number dated series : 22 Segment length tested : 50 Number problem segments: 13 Pct problem segments : 13.98 PART 5: CORRELATION OF SERIES BY SEGMENTS: White Pine Hollow update 16:00 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 1775 1800 1825 1850 1875 1900 1925 1950 1975 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 WPH001a 1899 2017 .63 .65 .52 .40 .44 2 WPH001b 1925 2017 .49 .43 .37 3 WPH002A 1967 2017 .53 .52 4 WPH002B 1921 2017 .26A .29A .37 .43 5 WPH003A 1967 2017 .72 .71 6 WPH003B 1950 2017 .64 .72 7 WPH101A 1940 2017 .33 .40 .25A 8 WPH101B 1905 2017 .57 .45 .65 .68 9 WPH102A 1931 2017 .68 .74 .66 10 WPH102B 1938 2017 .55 .63 .60 11 WPH103A 1885 2017 .79 .75 .63 .59 .52 12 WPH103B 1881 2017 .64 .70 .75 .72 .72 13 WPH104A 1797 2017 .28A .21B .25A .42 .63 .47 .32A .60 .57 14 WPH104B 1783 2017 .20B .15B .24B .48 .69 .59 .59 .63 .59 15 WPH201a 1908 2017 .68 .56 .48 .50 16 WPH201b 1803 2017 .28B .19B .35 .51 .45 .48 .60 .48 17 WPH202A 1875 2017 .56 .59 .56 .37 .26A 18 WPH202B 1885 2017 .54 .46 .63 .71 .54 19 WPH302A 1914 2017 .49 .55 .52 .44 20 WPH302B 1945 2017 .56 .56 .49 21 WPH303A 1945 2017 .57 .56 .52 22 WPH303B 1967 2017 .65 .65 Av segment correlation .24 .21 .23 .42 .62 .56 .53 .57 .53 PART 7: DESCRIPTIVE STATISTICS: White Pine Hollow update 16:00 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 WPH001a 1899 2017 119 5 0 .523 1.08 2.96 .512 .852 .198 3.02 .575 -.064 1 2 WPH001b 1925 2017 93 3 0 .413 .63 1.35 .207 .774 .166 2.38 .344 -.044 1 3 WPH002A 1967 2017 51 2 0 .536 .80 1.32 .166 .305 .179 2.66 .639 -.045 1 4 WPH002B 1921 2017 97 4 2 .375 1.07 3.03 .534 .835 .184 2.59 .459 .018 2 5 WPH003A 1967 2017 51 2 0 .718 1.72 2.80 .485 .644 .184 2.71 .600 .065 1 6 WPH003B 1950 2017 68 2 0 .652 2.30 4.25 .742 .350 .277 2.80 .521 .053 1 7 WPH101A 1940 2017 78 3 1 .358 1.41 2.46 .468 .813 .165 2.75 .546 .033 1 8 WPH101B 1905 2017 113 4 0 .596 1.37 2.52 .419 .691 .194 2.61 .406 .048 6 9 WPH102A 1931 2017 87 3 0 .650 1.28 2.40 .461 .715 .211 2.76 .552 -.005 1 10 WPH102B 1938 2017 80 3 0 .583 1.22 2.43 .366 .656 .192 2.61 .545 -.037 1 11 WPH103A 1885 2017 133 5 0 .647 1.05 1.88 .251 .442 .184 2.61 .524 .042 2 12 WPH103B 1881 2017 137 5 0 .700 1.29 2.07 .235 .068 .199 2.54 .418 .025 2 13 WPH104A 1797 2017 221 9 4 .421 .71 1.26 .224 .693 .192 2.50 .304 -.038 1 14 WPH104B 1783 2017 235 9 3 .459 .98 1.87 .284 .621 .182 2.62 .307 -.016 1 15 WPH201a 1908 2017 110 4 0 .562 .89 1.60 .267 .733 .167 2.77 .473 -.039 1 16 WPH201b 1803 2017 215 8 2 .381 1.05 2.05 .382 .716 .209 2.64 .336 .001 1 17 WPH202A 1875 2017 143 5 1 .450 .92 1.52 .277 .705 .187 2.54 .415 -.041 1 18 WPH202B 1885 2017 133 5 0 .545 .83 1.54 .276 .760 .184 2.48 .340 .028 1 19 WPH302A 1914 2017 104 4 0 .478 .85 1.93 .307 .677 .213 2.54 .390 -.012 1 20 WPH302B 1945 2017 73 3 0 .455 1.59 2.51 .354 .118 .243 2.53 .406 .116 1 21 WPH303A 1945 2017 73 3 0 .481 1.59 2.51 .348 .124 .235 2.59 .453 .126 1 22 WPH303B 1967 2017 51 2 0 .654 2.07 3.70 .599 .213 .276 2.53 .441 -.049 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2465 93 13 .511 1.11 4.25 .346 .603 .197 3.02 .424 .001