Table S1.

Cross-correlation results for monthly time series and PDO and ONI

Variablesr, moLag range (range of r values), monDescription
x = PDO
y = ONI0.59− 4 to +3231ONI typically lags PDO by 0 mo, with a range of − 4 mo to +3 mo
(0)(0.52 to 0.59)
y = SST anomaly0.54− 1 to +1231SST anomaly typically lags PDO by 0 mo, with a range of − 1 mo to +1 mo
(0)(0.45 to 0.54)
y = CSR anomaly0.480 to +9231CSR typically lags PDO by 4 mo, with a range of 0 mo to 9 mo
(+4)(0.39 to 0.48)
y = monthly maximum DA0.38+2 to +10231DA typically lags PDO by 6 mo, with a range of 2 mo to 10 mo
(+6)(0.28 to 0.38)
x = ONI
y = SST anomaly0.39− 3 to +5231SST anomaly typically lags ONI by 0 mo, with a range of − 3 mo to +5 mo
(0)(0.30 to 0.39)
y = CSR anomaly0.54+3 to +8231CSR typically lags ONI by 6 mo, with a range of 3 mo to 8 mo
(6)(0.45 to 0.54)
y = monthly maximum DA0.45+7 to +14231DA typically lags ONI by 9 mo, with a range of 7 mo to 14 mo
(9)(0.35 to 0.45)
  • Column 1 shows the maximum correlation value (rmax), where r is the cross-correlation value, and the corresponding lag in months (in parentheses). Variables were also significantly related across a range of r; this range (column 2) spans rmax to rmax −1, and the associated lag is in parentheses. Column 3 shows the n values of the time series, where n is the number of values in cross-correlation analysis. Column 4 gives a brief description of the results shown in each row.