Convergence of TauREx 2D and Pytmosph3R when the atmospheric grid resolution is increased. The Y-axis indicates the average of the absolute difference over all wavelengths considered between each model and Pytmosph3R () = (1000, 540). The X-axis indicates the number of layers in the model. The legend indicates the angular resolution of the model, dα, equal to for TauREx (T2) and for Pytmosph3R (P3). For example, dα = 1° leads to and . Pytmosph3R was run with φ_⋆ = 90° (see Fig. 7), so that only one longitude and one azimuthal angle are necessary, i.e., .