Top panel: example of Jupiter spectral region (zonally averaged) encompassing CH₄ lines and the H₂O v₂ lines at 75^∘S (red), 65^∘S (blue) and 25^∘S (black). The vertical lines display the spectral features of CH₄ (black) and NH₃ (orange). Bottom left panel: same but for HCN v₂ band (zonally averaged) next to C₂H₂ lines. Bottom right panel: same but for CO₂ v₂ band. The grey regions mark the positions of the emission lines of each molecule. The spectra at 65^∘S is shifted to match the continuum emission of the 75^∘S spectrum. The offset values in nWcm⁻²sr⁻¹/cm⁻¹ are indicated in the legend of each panel.