Abstract While aspects such as the temperature and composition of the Martian atmosphere are relatively well known thanks to observations from numerous space missions, Martian atmospheric dynamics remain poorly constrained due to the scarcity of direct wind measurements. The use of microwave limb sounders to retrieve winds has been proposed in the past, but no such instrument has yet flown to Mars. The precision of the wind measurements by such instruments has been studied before for a handful of cases, but a thorough study taking into account current knowledge on the variability of the Martian atmosphere has not yet been conducted. In this study, we propose a cross‐correlation method to retrieve winds from the Doppler shift of various emission lines as measured by a generic microwave limb sounder, and characterize the variability of the accuracy of the retrieved winds during a whole Mars year assuming a given instrumental configuration. With this instrument setup, and using the combination of CO isotopes with differing line intensities, wind measurements are achieved with an accuracy better than 10 m/s at tangent altitudes between 30 and 140 km during most times of the year, local times, and locations in the planet.
Jurado‐Fortuna et al. (Thu,) studied this question.
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