Cameron Pass Subalpine Fir, Colorado - CO635 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 : CO635.CRN Measurement file name : CO635.RWL Date checked : 26JUL07 Checked by : B. Bauer Beginning year : 1709 Ending year : 2003 Principal investigators: Christof Bigler Thomas T. Veblen Site name : Cameron Pass Site location : Colorado Species information : ABLA SUBALPINE FIR Latitude : 4033 Longitude : -10550 Elevation : 3100M Series intercorrelation: 0.467 Avg mean sensitivity : 0.159 Avg standard deviation : 0.019 Avg autocorrelation : 0.854 Number dated series : 16 Segment length tested : 50 Number problem segments: 23 Pct problem segments : 15.97 PART 5: CORRELATION OF SERIES BY SEGMENTS: Cameron Pass Fir 15:50 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 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 C043012 1777 2003 .32A .25A .23B .41 .55 .55 .53 .38 .41 2 C043016 1802 2003 .32B .56 .57 .48 .48 .47 .26A .29A 3 C043024 1825 2003 .56 .41 .40 .61 .59 .60 .59 4 C043038 1800 2003 .29A .33B .50 .48 .46 .49 .43 .44 5 C043046 1850 2003 .32A .48 .59 .56 .39 .35 6 C043050 1734 2003 .30A .30A .06B .23B .49 .57 .48 .30B .35 .50 .40 7 C044052 1812 2003 .47 .56 .42 .48 .53 .50 .43 .34 8 C044078 1736 2003 .34 .26A .36 .53 .48 .35 .64 .66 .43 .35 .31A 9 C044122 1753 2003 .28B .28B .34 .62 .48 .45 .57 .57 .43 .39 10 C044192 1727 2003 .38 .36 .13B .35 .67 .41 .52 .59 .54 .61 .57 11 C044260 1709 2003 .42 .65 .56 .49 .58 .57 .50 .41 .50 .66 .63 12 C044262 1728 2003 .36 .56 .51 .51 .56 .45 .64 .59 .54 .47 .45 13 C044266 1768 2003 .52 .51 .61 .67 .57 .55 .58 .49 .29A .25A 14 C044292 1825 2003 .68 .71 .69 .63 .62 .64 .60 15 C044304 1850 2003 .54 .61 .59 .46 .36 .31A 16 C044326 1750 2003 .51 .64 .56 .49 .59 .75 .73 .55 .36 .30A Av segment correlation .36 .43 .37 .41 .53 .49 .55 .55 .51 .45 .42 PART 7: DESCRIPTIVE STATISTICS: Cameron Pass Fir 15:50 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 C043012 1777 2003 227 9 3 .395 .04 .09 .017 .875 .166 2.55 .396 .006 1 2 C043016 1802 2003 202 8 3 .411 .03 .07 .014 .871 .170 2.70 .527 .054 1 3 C043024 1825 2003 179 7 0 .510 .03 .06 .010 .757 .205 2.49 .341 -.050 1 4 C043038 1800 2003 204 8 2 .422 .04 .06 .008 .675 .155 2.63 .406 .010 2 5 C043046 1850 2003 154 6 1 .415 .03 .06 .013 .920 .159 2.41 .320 -.038 1 6 C043050 1734 2003 270 11 5 .351 .04 .12 .018 .909 .144 2.62 .366 -.036 1 7 C044052 1812 2003 192 8 0 .447 .05 .10 .018 .822 .181 2.56 .445 -.029 1 8 C044078 1736 2003 268 11 2 .452 .05 .08 .016 .901 .123 2.64 .359 -.047 1 9 C044122 1753 2003 251 10 2 .414 .05 .12 .023 .938 .138 2.51 .344 -.005 1 10 C044192 1727 2003 277 11 1 .456 .06 .30 .070 .977 .191 2.68 .408 -.019 1 11 C044260 1709 2003 295 11 0 .515 .03 .11 .021 .942 .182 2.64 .377 -.017 1 12 C044262 1728 2003 276 11 0 .508 .02 .08 .009 .758 .165 2.64 .366 -.007 1 13 C044266 1768 2003 236 10 2 .509 .04 .07 .010 .694 .144 2.68 .380 .020 2 14 C044292 1825 2003 179 7 0 .651 .03 .06 .008 .802 .135 2.73 .425 .008 1 15 C044304 1850 2003 154 6 1 .496 .05 .10 .028 .961 .156 2.58 .414 .052 1 16 C044326 1750 2003 254 10 1 .548 .03 .06 .007 .806 .131 2.60 .357 -.030 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3618 144 23 .467 .04 .30 .019 .854 .159 2.73 .387 -.010