Figure 6 DCCA and DSPCCA coefficients between AMO and StratAOD for (a) AMO-ERRST; AD 1854-1999 (b) AMO-Mann; AD 1600-1999 (c) AMO-Gray; AD 1600-1990. The dotted (dashed) lines indicate the correlation coefficient critical values at 90% (95%) significance. See methods section for explanation of legends
