False colour image of the topography of the crater
False colour image of the topography of the crater
Digital terrain models of the Martian surface can be generated with an accuracy of up to 10 metres per pixel from the nadir channel directed vertically onto the Martian surface and the stereo channels of the High Resolution Stereo Camera (HRSC) on Mars Express. In this colour-coded image, the absolute elevations above a reference level, the Areoid (derived from Ares, the Greek word for Mars), are well depicted. These elevation values can be read based on the colour scale at the top right of the image. The colour differences clearly show the height difference between the ramparts and the crater floor.