Figure 2
From: Indian Ocean Dipole in CMIP5 and CMIP6: characteristics, biases, and links to ENSO

Multimodel mean of monthly standard deviation with interquartile range shaded for CMIP5 (blue) and CMIP6 (orange) in (a) DMI, and (b) Niño3.4. Peak month histogram of standard deviation for (c) DMI, and (d) Niño3.4, in CMIP5 (blue) and CMIP6 (orange), observed peak in dashed line. Overlap of CMIP5 and CMIP6 is shown in dark orange/brown.