Vertical temperature (red) and abundance profiles against pressure altitude (ordinate), as used in the best-fit model. Abscissae (all in ppm, indicating mass fractions for ices, and volume-mixing ratios for gaseous species) are as follows: ammonia ice (green), water ice (bright blue), H₂ and HD (dark blue, solid respectively dashed profile), He (medium blue), CH₄ (yellow solid line, Sánchez-López et al. 2022), NH₃ (orange, solid line), PH₃ (orange, dotted line). The dashed yellow CH₄-profile is the original abundance layering from Moses et al. (2005). For further references see Table 1.