Figure 3: a) Mean SST along the equator from observations (black line), CCSM4 (red line), and CCSM3 (blue line). Seasonal cycle of SST along the equator calculated as the mean of each month minus the total mean from observations (b), CCSM4 (c), and CCSM3 (d). Units are °C and the means are calculated over 1980-1999 for CCSM3 and 1986-2005 for CCSM4. The mean from observations spans both periods including 1980-2005.
