The PRPDC has been in a long-term effort of generating digital elevation models (DEMs) from Mars Reconnaissance Orbiter (MRO) Context Camera (CTX) images in order to support the Community's quantitative analysis of Martian landforms. We could not do this without the NASA AMES Stereo toolkit software as well as the USGS ISIS software, both of which were instrumental in the production of these DEMs.

We recognize that the quality of these data is not as good as that of DEMs produced using more advanced software (e.g., SOCET Set), nor are they as rigorously validated as DEMs which could be stored in the Planetary Data System (PDS). There are some rare holes in our products. However, our goal is to make these products as readily available to the community as soon as possible. Users are welcome to download and use any of the data presented here -- all that we ask is that if a peer-reviewed publication includes the use of at least one of these, then please acknowledge the PRPDC.

The MRO CTX was developed by Malin Space Science Systems. The camera takes images with a swath width of 20 to 30 kilometers, an along-track swath of >100 km, with a pixel resolution of 6 meters per pixel. The instrument has collected thousands of stereopairs, and we are working to produce DEMs of some of the most interesting targets. For more details, see Malin, M. C. and 13 others (2007). "Context Camera investigation on board the Mars Reconnaissance Orbiter". Journal of Geophysical Research vol. 112 (E5), doi: 10.1029/2006JE002808.

PRPDC-Produced CTX

Digital Elevation MODELS

  • Impact Craters
  • Volcanoes
  • Other Landforms
  • Left : Impact Craters - Study the geometry of the crater cavity and ejecta blanket

    Center : Volcanoes - Caldera and lava flow geometry

    Right : Other Landforms - Landslides, ridges, and more