Below are maps of kilometer-scale surface roughness of Mars in cylindrical projection (top), and in polar Lambert azimuthal equal-area projection for the northern (middle) and southern (bottom) hemispheres.
The maps are composite RGB images. The median absolute values of the differential slopes at 0.6-, 2.4-, and 19.2-km baselines are used as the blue, green, and red channels, respectively. Brighter shades denote a rougher surface. For further details see: M. A. Kreslavsky and J. W. Head, Kilometer-scale roughness of Mars: Results from MOLA data analysis, J. Geophys. Res., 105, 26,695-26,711, 2000. Images should be credited to the MOLA Science Team.
