Figure 12 Annually averaged climate variability in the equatorial Pacific. MLD, SST, and zonal wind anomaly (a) in the NIÑO3 box (210o-270oE, 5oS-5oN), (b) in a western Pacific box (135o-180oE, 5oS-5oN). (c) Lag correlation among NIÑO3 and western Pacific variables. Positive lags imply that the second variable leads the first.
Figure 13Variability in the Indian Ocean sector during the season of the mature phase of ENSO SSTs (DJF). (a) Spatial pattern of leading Empirical Orthogonal Eigenfunction of MLD (explains 9.5% of variance). Time regression of winds onto the EOF time series is overlain. (b) Corresponding principal component time series (solid). The SOI index for DJF is overlain. Correlation of these time series is 0.75.
Figure 14 Leading Empirical Orthogonal Eigenfunction of MLD variability in the Indian Ocean sector during the season of the Southwest Monsoon (JJA). This EOF explains 8.5% of MLD variance. Time regression of winds onto the EOF time series is overlain. (b) Corresponding principal component time series.