temperature anomalies in the equatorial Indian Ocean
(Fig. 14), below the negative temperature anomalies at
the thermocline level. However, the vertical coherence
in the Indian Ocean is less than in the Pacific (Fig. 15),
although there are times when a coherent anomaly can
be detected from the surface down to the deepest level,
such as in the eastern Indian Ocean during phase 2
(Fig. 15b).