Cameron Pass Lodgepole Pine, Colorado - CO634 Additional information Christof Bigler Thomas T. Veblen Purpose of Collection: Master chronology for study of drought effects on tree mortality and tree growth Detrend method: Negative exponential or linear regression of any slope, ARSTAN: Smoothing spline with 50 cutoff Cores are stored at: ETH Tree-Ring Laboratory Forest Ecology Institute of Terrestrial Ecosystems ETH Zurich CHN G 61 CH-8092 Zurich Switzerland Trees were sampled in area of 11 km x 5.8 km Site: Elevation 2930 - 3320 m Reference: Bigler, C., D.G. Gavin, C. Gunning, and T.T. Veblen. 2007. Drought induces lagged tree mortality in a subalpine forest in the Rocky Mountains. Oikos 116:1983-1994. COFECHA output: Chronology file name : CO634.CRN Measurement file name : CO634.RWL Date checked : 26JUL07 Checked by : B. Bauer Beginning year : 1747 Ending year : 2003 Principal investigators: Christof Bigler Thomas T. Veblen Site name : Cameron Pass Site location : Colorado Species information : PICO LODGEPOLE PINE Latitude : 4033 Longitude : -10550 Elevation : 3100M Series intercorrelation: 0.361 Avg mean sensitivity : 0.163 Avg standard deviation : 0.039 Avg autocorrelation : 0.912 Number dated series : 8 Segment length tested : 50 Number problem segments: 27 Pct problem segments : 34.18 PART 5: CORRELATION OF SERIES BY SEGMENTS: Cameron Pass Pine 15:44 Thu 26 Jul 2007 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 C043216 1795 2003 .34 .33 .33B .28A .22A .26A .36B .35 .38 2 C043234 1760 2003 .38B .46 .71 .66 .38 .31A .40 .44 .45 .45 3 C043408 1766 2003 .45 .43 .45 .56 .33B .35 .50 .38 .28B .28B 4 C044204 1765 2003 .44 .47 .35 .44 .36 .18B .24B .34 .37 .43 5 C044222 1761 2003 .36 .50 .38 .54 .53 .43 .40 .40 .43 .47 6 C044230 1761 2003 .63 .55 .40 .38 .37 .15A .20A .41 .30B .33 7 C044236 1747 2003 .33 .40 .29B .18B .31A .28A .27A .45 .31A .25A 8 C044244 1763 2003 .17B .30A .37 .46 .38 .29A .11B .19B .41 .40 Av segment correlation .39 .43 .41 .44 .37 .28 .30 .37 .36 .37 PART 7: DESCRIPTIVE STATISTICS: Cameron Pass Pine 15:44 Thu 26 Jul 2007 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 C043216 1795 2003 209 9 5 .318 .05 .10 .020 .913 .122 2.67 .391 -.036 2 2 C043234 1760 2003 244 10 2 .430 .08 .14 .016 .707 .121 2.62 .379 .000 2 3 C043408 1766 2003 238 10 3 .409 .05 .14 .034 .906 .199 2.46 .289 -.022 1 4 C044204 1765 2003 239 10 2 .365 .08 .27 .057 .950 .153 2.68 .459 -.009 1 5 C044222 1761 2003 243 10 0 .438 .05 .19 .039 .951 .169 2.74 .458 .014 2 6 C044230 1761 2003 243 10 3 .378 .05 .22 .045 .948 .162 2.76 .487 -.029 1 7 C044236 1747 2003 257 10 7 .279 .05 .29 .062 .965 .195 2.67 .369 -.033 1 8 C044244 1763 2003 241 10 5 .269 .04 .17 .034 .958 .173 2.67 .386 -.005 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1914 79 27 .361 .05 .29 .039 .912 .163 2.76 .403 -.015