Fig. 8

EXES disk-integrated spectrum of Mars between 1387.9 and 1389.2 cm-1 (black line). Models: green: H2O = 100 ppmv, HDO = 200 ppbv; red (best fit): H2O = 220 ppmv, HDO = 300 ppbv; blue: H2O = 380 ppmv, HDO = 475 ppbv. The surface pressure is 6 mb and the surface brightness temperature is 255 K. Synthetic spectra have been multiplied by the terrestrial absorption to fit the EXES data.
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