Fig. 3.　As in Fig.2, except for regression maps (0-9 yrs) in the North Paciffic. The contour intervals are 0.1K and 300m²s^-1.

Fig. 4.　Schematic of the advective oscillation (upper panels) and the Rossby wave oscillation (lower panels). Thick circles with sign denotes temperature anomalies at each stage of the oscllation. This arrow in the top-left panel represents the mean curent while the dotted line and arrows in the bottom-middle panel indicate the Rossby wave front and direction of the wave propagation.

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