Bear Gulch, South Dakota - SD024 Additional Site Information Steven Voelker Cores Stored at: Oregon State University Reference: Voelker, Steven L., Paul-Emile Noirot-Cosson, Michael C. Stambaugh, Erin R. McMurry, Frederick C. Meinzer, Barbara Lachenbruch, and Richard P. Guyette 2012. Spring temperature responses of oaks are synchronous with North Atlantic conditions during the last deglaciation. Ecological Monographs 82:169-187 Notes: These cores were taken to measure growth rates, wood anatomy and stable isotope measurements from dominant and co-dominant trees across tree ages. Two cores were taken for each tree but in most cases only one was measured for ring-widths. The other was destructively sampled for stable isotope measurements. COFECHA output: Chronology file name : SD024.CRN Measurement file name : SD024.RWL Date checked : 31MAY13 Checked by : B. Bauer Beginning year : 1724 Ending year : 2008 Principal investigators: Steven Voelker Site name : Bear Gulch Site location : South Dakota Species information : QUMA BURR OAK Latitude : 4348 Longitude : -10323 Elevation : 1370M Series intercorrelation: 0.628 Avg mean sensitivity : 0.201 Avg standard deviation : 0.426 Avg autocorrelation : 0.705 Number dated series : 6 Segment length tested : 50 Number problem segments: 1 Pct problem segments : 1.82 PART 5: CORRELATION OF SERIES BY SEGMENTS: Bear Gulch 11:39 Fri 31 May 2013 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 1825 1850 1875 1900 1925 1950 1975 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 BG011 1788 2008 .78 .78 .72 .73 .57 .58 .62 .63 .57 2 BG021 1873 2008 .52 .51 .29A .38 .65 .67 3 BG050 1770 2008 .65 .70 .76 .75 .68 .63 .34 .38 .63 .49 4 BG061 1768 2008 .68 .71 .63 .73 .73 .64 .51 .52 .68 .55 5 BG031 1774 2008 .69 .70 .69 .75 .73 .57 .56 .72 .71 .68 6 BG041 1724 2008 .86 .88 .90 .69 .53 .54 .61 .55 .64 .60 Av segment correlation .72 .76 .75 .73 .66 .58 .48 .53 .66 .59 PART 7: DESCRIPTIVE STATISTICS: Bear Gulch 11:39 Fri 31 May 2013 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 BG011 1788 2008 221 9 0 .662 1.03 2.49 .448 .739 .213 2.66 .323 .027 1 2 BG021 1873 2008 136 6 1 .472 1.08 2.97 .577 .827 .236 2.62 .382 .020 1 3 BG050 1770 2008 239 10 0 .573 1.04 2.20 .324 .665 .199 2.72 .363 -.015 2 4 BG061 1768 2008 241 10 0 .634 1.35 2.76 .358 .501 .217 2.67 .378 .023 1 5 BG031 1774 2008 235 10 0 .683 1.36 3.37 .446 .737 .168 2.60 .328 .020 1 6 BG041 1724 2008 285 10 0 .681 1.12 2.80 .461 .802 .189 2.79 .441 .035 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1357 55 1 .628 1.17 3.37 .426 .705 .201 2.79 .371 .019