Fig. 3: Difference in SSTA tendencies between the Exp_large_DA and Exp_small_DA experiments in the FIO-ESM v2.0 model.
From: Key to ENSO phase-locking simulation: effects of sea surface temperature diurnal amplitude

a, b SSTA tendencies in Exp_small_DA (blue line) and Exp_large_DA (red line) experiments during El Niño (a) and La Niña (b). The difference between the Exp_large_DA and Exp_small_DA experiment results (yellow line) uses the scale on the right vertical axis. c, d Same as (a, b), but for the combined MH, ZA, and MA processes during El Niño (c) and La Niña (d), respectively. The gray bands represent boreal winter.