Davos GR Dischma-Flüela - SWIT181 Additional information Christof Bigler Purpose of Collection: Ecology - Forest dynamics, tree competition Detrend method: Negative exponential or linear regression of any slope, Smoothing spline with 50 cutoff Cores are stored at: ETH Tree-Ring Laboratory Forest Ecology Institute of Terrestrial Ecosystems ETH Zurich CHN G 63 CH-8092 Zurich Switzerland Site: South-west facing aspects, elevation 1600 - 2000 m Reference: Bigler, C., and H. Bugmann. 2003. Growth-dependent tree mortality models based on tree rings. Canadian Journal of Forest Research 33:210-221. Chronology file name : SWIT181.CRN Measurement file name : SWIT181.RWL Date checked : 02OCT06 Checked by : B. Bauer Beginning year : 1668 Ending year : 1999 Principal investigators: Christof Bigler Site name : Davos GR Dischma-Flüela Site location : Switzerland Species information : PCAB NORWAY SPRUCE Latitude : 4647 Longitude : 00953 Elevation : 1800M Series intercorrelation: 0.488 Avg mean sensitivity : 0.171 Avg standard deviation : 0.414 Avg autocorrelation : 0.857 Number dated series : 18 Segment length tested : 50 Number problem segments: 16 Pct problem segments : 14.41 PART 5: CORRELATION OF SERIES BY SEGMENTS: Davos GR Dischma-Fluela 16:45 Mon 02 Oct 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 1775 1800 1825 1850 1875 1900 1925 1950 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 DAA159B 1794 1999 .52 .60 .60 .48 .58 .64 .46 .58 2 DAA161A 1825 1999 .35 .33 .61 .66 .61 .55 3 DAA162A 1794 1999 .37 .39B .26B .20B .55 .62 .50 .23B 4 DAA166B 1668 1999 .26B .40 .28A .29B .48 .48 .33 .43 5 DAA167A 1800 1999 .53 .53 .19B .35 .72 .71 .30A 6 DAA171B 1799 1999 .57 .55 .54 .62 .70 .80 .79 .61 7 DAA172A 1797 1999 .69 .70 .66 .61 .61 .68 .61 .58 8 DAA176B 1899 1999 .51 .50 .56 .30A 9 DAA180B 1781 1999 .44 .47 .27B .52 .69 .69 .63 .59 10 DAB185A 1900 1999 .59 .65 .36 11 DAB186B 1875 1999 .65 .78 .69 .60 12 DAB193A 1878 1999 .52 .53 .35 .50 13 DAB194A 1881 1999 .34 .41 .41 .27A 14 DAB203B 1775 1996 .41B .69 .42 .42 .27A .47 .62 .44 15 DAB204A 1828 1999 .57 .55 .46 .43 .32A .50 16 DAB207B 1869 1999 .51 .69 .69 .63 .68 17 DAB208A 1877 1999 .45 .73 .59 .63 18 DAB210A 1775 1999 .23B .44 .43 .41 .46 .61 .59 .51 Av segment correlation .44 .53 .45 .43 .52 .61 .56 .48 PART 7: DESCRIPTIVE STATISTICS: Davos GR Dischma-Fluela 16:45 Mon 02 Oct 2006 Page 7 ----------------------------------------------------------------------------------------------------------------------------------- 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 DAA159B 1794 1999 206 8 0 .540 1.20 2.76 .428 .816 .176 2.72 .468 -.024 2 2 DAA161A 1825 1999 175 6 0 .522 1.41 3.00 .512 .858 .145 2.51 .347 .000 1 3 DAA162A 1794 1999 206 8 4 .356 .67 1.54 .254 .879 .153 2.39 .298 -.066 1 4 DAA166B 1668 1999 332 8 3 .338 .82 1.84 .332 .925 .129 2.60 .291 -.016 1 5 DAA167A 1800 1999 200 7 2 .479 .80 1.82 .289 .835 .162 2.55 .364 -.030 1 6 DAA171B 1799 1999 201 8 0 .656 .99 2.20 .356 .805 .184 2.43 .343 -.075 1 7 DAA172A 1797 1999 203 8 0 .645 .88 4.52 .701 .943 .189 2.46 .307 -.020 2 8 DAA176B 1899 1999 101 4 1 .427 1.13 2.54 .664 .953 .126 2.34 .353 -.041 1 9 DAA180B 1781 1999 219 8 1 .496 .85 3.47 .575 .914 .193 2.71 .402 -.076 1 10 DAB185A 1900 1999 100 3 0 .481 .71 1.26 .266 .780 .194 2.62 .437 .005 1 11 DAB186B 1875 1999 125 4 0 .659 .99 2.17 .361 .752 .181 2.72 .475 -.018 1 12 DAB193A 1878 1999 122 4 0 .479 1.30 2.67 .485 .887 .148 2.61 .441 .039 1 13 DAB194A 1881 1999 119 4 1 .386 1.22 1.97 .401 .872 .130 2.41 .360 .009 1 14 DAB203B 1775 1996 222 8 2 .396 .62 2.70 .540 .897 .290 2.52 .312 .007 2 15 DAB204A 1828 1999 172 6 1 .460 .96 1.78 .274 .736 .157 2.64 .350 -.036 1 16 DAB207B 1869 1999 131 5 0 .616 1.34 3.49 .575 .854 .164 2.54 .402 -.017 1 17 DAB208A 1877 1999 123 4 0 .516 .79 2.84 .435 .870 .166 2.51 .312 -.044 1 18 DAB210A 1775 1999 225 8 1 .407 .53 1.02 .166 .776 .159 2.72 .445 .045 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3182 111 16 .488 .92 4.52 .414 .857 .171 2.72 .365 -.021