4

No. This pattern is not directly water/ice-related, it's just dunes - the crater is filled with martian sand and the winds created these ripples. There are a few other examples of similar patterns - here's a small selection: https://www.nasa.gov/image-feature/the-dunes-in-mars-wirtz-crater https://en.wikipedia.org/wiki/Proctor_(Martian_crater) https://www....


3

The d/D ratio of Martian craters vary from 0.1 to 0.4 with mean value of 0.23. The largest crater with diameter 33m has d/D ratio of 0.2 but smaller craters have higher d/D value. One crater has a surprisingly high d/D value: 0.5. A plot of d/D ratio vs diameter is drawn showing the variation in the values: Shallower craters have d/D values of more than 0.3 ...


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