Extended Data Fig. 4: Convection patterns of each observed extreme/moderate northward swing event.
From: Increased extreme swings of Atlantic intertropical convergence zone in a warming climate
MAM-averaged SST anomalies (°C, color shading) referenced to the SST threshold for tropical convection, defined as the MAM SST averaged from 20°S to 20°N over the whole tropics, for observed extreme and moderate events in a 1983, b 1990, c 1992, d 1993, e 1998, f 2010, and g 2012. Areas with SST lower than the convection threshold are masked out. A large northward extension of convection boundary in the western tropical Atlantic is seen during the 1983 extreme event, together with diminishing convection to the south of equator in the central-eastern tropical Atlantic.
