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. Author manuscript; available in PMC: 2013 Sep 9.
Published in final edited form as: Can J For Res. 2013 May 1;43(7):609–618. doi: 10.1139/cjfr-2012-0426

Table 1.

Statistics of developed ring-width chronologies (Autocorr = first-order autocorrelation, MS = mean sensitivity, SD = standard deviation, SNR = signal to noise ratio, EPS = expressed population signal, EV = variance first eigenvector). Mean ± values standard deviation.

Age class Trees (n) Age1 (years) Mean ring width (μm) Autocorr2 MS2 (%) SD2 SNR2 EPS2 EV2 (%)
I 52 28 ± 9 395±307 0.051 13 0.112 5.8 0.852 38.2
II 58 53 ± 12 701±393 0.011 17 0.141 11.5 0.920 46.1
III 37 121 ± 24 625±317 0.203 19 0.179 12.6(9.8) 0.927(0.907) 46.5(49.3)
IV 34 173 ± 24 584±216 0.268 18 0.187 19.6(10.1) 0.951(0.910) 41.2(54.7)
1

Cambial age including estimated age at sampling height

2

Calculated on the basis of detrended ‘standard’ chronologies, i.e. prior to removing of serial autocorrelation (see Methods); SNR, EPS and EV-values shown for age class II and inside parentheses for age classes III and IV cover the common time interval 1976 to 2011.