Good Harbor Plains, Michigan Quercus - MI013 Additional Site Information Thomas C. Wyse, P. Charles Goebel Purpose of Collection: Forest disturbance history and recruitment patterns. Cores are stored at: Forest Ecosystem Restoration & Ecology School of Natural Resources OARDC The Ohio State University 1680 Madison Avenue Wooster, OH 44691-4096 Description: The site is a sandy lake plain adjacent to Lake Michigan in northwest lower Michigan. These cores were used with others to investigate forest disturbance history and recruitment patterns. All ring width measurements were done with WinDENDRO. Cores were visually cross dated, and the cross dating was verified with COFECHA. COFECHA File_name Date Time_span Series Spline Seg Lag N_Seg Probs Prob% XCorr MnSens C/Var MnMsmt MnStDv MnACorr mi013.rwl 25May06 1872 2002 9 32 50 25 30 0 .00 .554 .262 50.18 1.613 .879 .759 Run GQURU Title: Good Harbor Plains QURU PART 5: CORRELATION OF SERIES BY SEGMENTS: Good Harbor Plains QURU 13:50 Thu 25 May 2006 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 1875 1900 1925 1950 1975 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 81-2 1872 2002 .47 .49 .64 .79 .79 2 94-2 1913 2002 .51 .49 .66 .65 3 87-1 1895 2002 .59 .61 .63 .66 .67 4 96 1933 2002 .61 .61 .63 5 60-2 1957 2002 .51 6 89-2 1907 2002 .38 .64 .57 .60 7 84-2 1904 2002 .59 .73 .71 .70 8 71-3 1970 2002 .46 9 96-3 1942 2002 .34 .39 .40 Av segment correlation .53 .52 .58 .60 .63 PART 7: DESCRIPTIVE STATISTICS: Good Harbor Plains QURU 13:50 Thu 25 May 2006 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 81-2 1872 2002 131 5 0 .608 1.67 6.16 .720 .646 .216 2.70 .446 -.034 1 2 94-2 1913 2002 90 4 0 .554 1.84 6.03 1.336 .891 .261 2.83 .499 -.036 1 3 87-1 1895 2002 108 5 0 .614 1.32 3.24 .744 .756 .297 2.77 .541 -.008 1 4 96 1933 2002 70 3 0 .561 1.66 4.70 1.008 .865 .239 2.70 .547 -.009 1 5 60-2 1957 2002 46 1 0 .511 2.76 6.73 1.729 .821 .271 2.54 .504 -.034 1 6 89-2 1907 2002 96 4 0 .495 1.95 4.12 .798 .732 .236 2.87 .463 -.001 1 7 84-2 1904 2002 99 4 0 .642 1.18 3.30 .734 .804 .310 2.76 .495 -.041 1 8 71-3 1970 2002 33 1 0 .460 1.88 4.06 .961 .836 .251 2.61 .611 .006 2 9 96-3 1942 2002 61 3 0 .376 .79 1.38 .313 .575 .294 2.63 .515 -.053 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 734 30 0 .554 1.61 6.73 .879 .759 .262 2.87 .502 -.024