Fig. 4: Seasonal and latitudinal intensity changes in the global subtropical circulation in the atmosphere-only experiments.
From: Robust changes in global subtropical circulation under greenhouse warming

a–c Seasonal and latitudinal intensity changes in 850 hPa streamfunction under a uniform sea surface temperature (SST) warming, b patterned SST warming, and c direct CO2 radiative forcing. The black curves indicate the center of the subtropical circulation in each hemisphere. d Sum of (a–c). Hatching indicates that the change is robust (see the “Methods” section for the details of the criteria).