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. 2017 Dec 7;122(12):2544–2573. doi: 10.1002/2017JE005324

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©2017. The Authors.

This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Lee slope of Namib Dune. (a) Left and (b) right halves of a Mastcam mosaic showing the distribution of grainfall, grainflow, small impact ripples, and large ripples forming across the lee slope. Note the increasing amount of wind ripple cover toward the horns of Namib Dune. Large ripples appear in the middle of the lee slope along with impact ripples implying that they are forming coincidently. Some grainflow scarps appear to be developing into large‐ripple topography near the brink area. The western flanks of large ripples are covered in grainfall and imply along‐slope transport from the east. Images: mcam05504, Sol 1201 (Figures 11a and 11b).