Topographic image map of Arima Crater and its 'twin'
Topographic image map of Arima Crater and its 'twin'
Using the HRSC stereo camera, digital terrain models can be derived that illustrate the topography of the region using false colours. The altitude allocation can be read from a colour scale at upper right; north is to the right in the image. In the absence of 'sea level', the elevation data is referenced to an areoid – a modelled equipotential surface on which everything experiences the same gravitational attraction towards the centre of the planet. This image shows part of Thaumasia Planum at approximately 17 degrees south and 296 degrees east. The image data was acquired during orbit 11,467 on 4 January 2013. The colour coding reveals the relative depth of the craters, in particular the depths of their central depressions, with the left-hand crater penetrating deeper into the subsurface than the right.
Copyright note:
As a joint undertaking by DLR, ESA and FU Berlin, the Mars Express HRSC images are published under a Creative Commons licence since December 2014: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO. This licence will also apply to all HRSC images released to date.