Extended Data Fig. 9: Consistent cold tongue annual cycle changes between the iCESM 1.2 and CESM LOP simulations.
From: Two annual cycles of the Pacific cold tongue under orbital precession
Plotted is the climatological monthly mean SST averaged over 6°S–6°N, for (top row) iCESM 1.240, and (2rd row) CESM LOP. The numbers on the top row denote the longitude of perihelion (where 90° = perihelion at winter solstice, 180° = at vernal equinox, 270° = at summer solstice, and 0° = at autumn equinox), and the last column from simulations setting eccentricity to zero. To facilitate comparison, an offset is added to each panel so that the annual mean SST averaged over 145°E–85°W is the same as for the observational data as shown in Extended Data Fig. 1a, 27.44 °C. Despite the short integration time for the CESM LOP, the cold tongue seasonal cycle changes are qualitatively similar with the longer iCESM 1.2 simulations.
