Three Martian Years of Observations of Mesospheric CO2 Clouds on Mars with OMEGA/MEX and HRSC/MEX

Abstract : We have presented a dataset of 3 Martian Years of observations of high-altitude CO2 clouds with OMEGA and HRSC on Mars Express and com-pared these observations to other published work. The clouds seem to have a quite regular seasonal behavior, even though we cannot draw definitive conclusions on interannual variability in the lack of full observational coverage. Extensions of existing datasets as well as analyses of new ones will help in filling the gaps and improving our knowledge on the cloud properties. The cloud observation dataset provides a rare source of information on mesos-pheric variables, such as temperature and winds, and can be used to constrain Global Climate Models.
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Anni Määttänen, Franck Montmessin, Brigitte Gondet, H. Hoffmann, F. Scholten, et al.. Three Martian Years of Observations of Mesospheric CO2 Clouds on Mars with OMEGA/MEX and HRSC/MEX. Fourth International Workshop on the Mars Atmosphere: Modelling and Observations, Feb 2011, Paris, France. 4p. ⟨hal-00566268⟩

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