Fig. 1

ACS MIR normalised transmission spectra obtained at tangent height of 16.8 km above martian ellipsoid in observation made in orbit 2233, using spectral windows from diffraction orders 226–231. The green line is the best fit to the data, while the coloured lines represent the contribution to the absorption from each gas. The contribution from each gas is shifted 0.2 for the clarity of the figure.
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