Transmission spectra calculated by GARLIC shown as atmospheric effective height vs. wavelength for the BOM scenarios (left panels) and EOM scenarios (right panels) for three different redox buffers IW-4, IW, and IW+4.The mole fraction of final outgassed species in the atmosphere for various scenarios is the same as provided inTables 4 and 5. The effective height of a reduced atmosphere (with low molecular weight) for the case of reduced mantle IW-4 (blue curve; scenarios 1.2, 1.3, 2.2, and 2.3) is lower than an atmosphere with larger molecular weight (blue curve; scenarios 1.1 and 2.1) and oxidizing atmospheres (green curve; all scenarios). For more details, see the text. The spectra have been binned to a resolution of λ∕Δλ = 1000.