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Fig. 4


Comparison of surface texture around ASH01, SET01 and SET02 between November 2014 and the end of March 2015. a) Smooth deposits showed dune-like corrugations on November 11, 2014. b) Depressions had appeared in scatter over the area by February 14, 2015. c) Mature honeycombs were observed on March 28 2015. Several fresh scarps (red arrows) and a wide shallow depression (dashed red rectangle) represent other potential changes in the vicinity. The observation in (a) was acquired at the phase angle of 70◦ with the pixel resolution of 0.52 m. b) was taken at the phase angle of 57◦ with the pixel resolution of 0.20 m. c) was taken at the phase angle of 68◦ with the pixel resolution of 0.51 m (Table A.1). Nomenclature is as given in Table 1.

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