Mean and Anomalous SST
Time-longitude section of monthly mean (top) and anomalous (bottom)
sea surface temperature (SST) averaged between 5N-5S.
Contour interval is 1C (top) and 0.5C (bottom). Dashed
contours in bottom panel indicate negative anomalies. Anomalies are
departures from the 1981-2010 base period means (Smith and Reynolds
1998, J. Climate, 11, 3320-3323).