Extended Data Fig. 5: Moving window correlation coefficients revealing that X-ray MXD exhibits a stronger relationship with ring width and latewood width than anatomical MXD.
From: Fennoscandian tree-ring anatomy shows a warmer modern than medieval climate
Ring width (TRW) versus anatomical MXD (MXDCWT) and X-FEN, as well as latewood width (LWW) versus MXDCWT and X-FEN. Spearman rank correlations were used on RCS-detrended chronologies with a 100-year base-lengths and 10-year overlaps. For the anatomical MXDCWT data, 100 sub-sampled chronologies with 15 trees/year were used to create ensemble ranges represented in blue shades. Deviations from these blue shaded areas represent significant differences (p < 0.05) from the TRW and LWW correlations with MXDCWT, respectively. The X-FEN correlations often reside outside the blue areas, and at higher correlations with TRW and LWW respectively, indicating occasionally stronger dependence of X-FEN on these parameters.
