Regolith-atmosphere water vapour interaction at Gale crater

Steele, L. J.; Balme, M. R. and Lewis, S. R. (2016). Regolith-atmosphere water vapour interaction at Gale crater. In: 47th Lunar and Planetary Science Conference, 21-25 Mar 2016, Houston, Texas.



The exchange of water between the atmosphere and regolith on Mars has been modelled for many decades, but mainly with simplified 1D models, and often with few observations to compare with. Thanks to the Rover Environmental Monitoring Station (REMS) aboard Curiosity, we now have obser-vations of relative humidity at a height of ~1.6 m spanning hundreds of sols. We use a mesoscale model coupled to a subsurface regolith model to study the regolith-atmosphere interaction in and around Gale crater, including atmospheric circulation patterns.

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