Table 1. Site information and general statistics of six Scots pine tree-ring chronologies in northeast Asia.

Site name	Taksimo	Tschita	Mangui	Khotugn	Mengkeshan	Zhigansk
Country	Russia	Russia	China	Russia	China	Russia
Latitude (N)	56°20′	56°50′	52°03′	63°23′	52°37′	66°31′
Longitude (E)	114°40′	118°05′	122°06′	125°48′	124°18′	122°20′
Altitude (m)	510	700	714	100	720	180
Time span	1707–1996	1720–1996	1791–2008	1568–1991	1628–2007	1564–1991
Tree number	32	28	34	28	38	31
MS	0.14	0.16	0.15	0.19	0.13	0.20
SD	0.17	0.20	0.27	0.26	0.28	0.23
AC1	0.49	0.48	0.75	0.59	0.87	0.37
MC	0.34	0.45	0.30	0.43	0.21	0.34
SNR	13.5	13.0	11.5	14.9	8.0	12.1
EPS	0.93	0.93	0.92	0.94	0.89	0.92
VFE %	37.9	49.8	35.6	46.9	29.7	37.4

Notes: MS-Mean sensitivity; SD-Standard deviation; AC1-Autocorrelation order 1; MC-Mean correlation; SNR-Signal-to-noise ratio; EPS-Expressed population signal; VFE-Variance in first eigenvector.