Snapshots of the latitudinally (a) or longitudinally (b) averaged T–P profile within model A at various longitudes or latitudes, respectively. In each plot, the solid lines represent the various T–P profiles considered. At low pressures (P < 10 bar), the dashed lines represent the days-side, night-side, and equilibrium profiles (in the longitudinal plot, a), or the reference Newtonian cooling (in the latitudinal plot, b), whereas at high pressures (P > 10 bar), the dashed lines (light grey) represent the initial state of the atmosphere.