Comparison of our CH₄ profile with other datasets and impact of the resolution of the solar spectrum on our results: (a) CH₄ number density profiles near the surface derived from Voyager 2 data and presented in Herbert & Sandel (1991; dark blue and orange), data points from Strobel & Zhu (2017; black dots) and result from our model using nominal reaction rates (red), i.e. without considering any uncertainty. (b) Comparison of the relative abundances of the main neutral species when using a high resolution solar spectrum (solid lines) versus a low resolution spectrum