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Table 2

Correlation matrices for input proxy data sets.

PSI SA SN RADIO MGII LYMAN

Original

PSI 1.000 0.942 0.852 0.872 0.764 0.771
SA 0.942 1.000 0.879 0.901 0.792 0.812
SN 0.852 0.879 1.000 0.946 0.915 0.912
RADIO 0.872 0.901 0.946 1.000 0.950 0.954
MGII 0.764 0.792 0.915 0.950 1.000 0.972
LYMAN 0.771 0.812 0.912 0.954 0.972 1.000

LF

PSI 1.000 0.998 0.989 0.994 0.989 0.990
SA 0.998 1.000 0.988 0.988 0.982 0.982
SN 0.989 0.988 1.000 0.991 0.986 0.984
RADIO 0.994 0.988 0.991 1.000 0.994 0.992
MGII 0.989 0.982 0.986 0.994 1.000 0.990
LYMAN 0.990 0.982 0.984 0.992 0.990 1.000

HF

PSI 1.000 0.894 0.741 0.814 0.542 0.586
SA 0.894 1.000 0.745 0.821 0.521 0.591
SN 0.741 0.745 1.000 0.795 0.657 0.666
RADIO 0.814 0.821 0.795 1.000 0.741 0.791
MGII 0.542 0.521 0.657 0.741 1.000 0.862
LYMAN 0.586 0.591 0.666 0.791 0.862 1.000

Notes. The original section presents correlations between the input proxy data, LF presents correlations after applying a Gaussian smoothing filter with the width parameter W = 750, and HF consists of correlations between detrended proxies. Here and below the maximum values for each subtable are given in boldface and minimum values in italics.

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