Latitudinally averaged transit asymmetries for three climate regimes. Top: individual evening and morning transit depths for tidally locked gas planets with T_global = 800 K, 1600 K, 2400 K orbiting a G main sequence host star are shown as dashed and solid lines, respectively. The following latitudes were taken into account at each limb for the calculations: θ = 0°, ±23°, ±45°, ±68°, ±86°. Results for cloud-free calculations are shown in blue and for different cloud mass loads, ρ_g/ρ_d(z), in atmospheric layers where 〈a〉 < 0.1 μm are shown in gray (light: 10⁻³ρ_g/ρ_d(z), middle: 10⁻²ρ_g/ρ_d(z), dark: 0.1ρ_g/ρ_d(z)). The black lines shows Fe-free results with full ρ_g/ρ_d(z). Bottom panel: differences between evening and morning terminator transit depths.