Figure 2 DCCA and DSPCCA coefficients between AMO and TSI for (a) AMO-ERRST; AD 1854-1999 (b) AMO-Mann; AD 1600-1999 (c) AMO-Gray; AD 1600-1990 (d) AMO-Mann; AD 1775-1999 and (e) AMO-Gray; AD 1775-1990.The dotted (dashed) lines indicate the correlation coefficient critical values at 90% (95%) significance. See methods section for explanation of legends