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Old 03-16-2017, 03:13 PM   #1
martins
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Default Mars Express/HRSC

The other day I attended the i-Mars Final Dissemination Event here at UCL (it's nice to find that your Uni shares interest in your hobby )

i-Mars is (or was) a project to use high-resolution imagery (mainly the HRSC datasef generated by Mars Express, but also locally CTX and HiRISE) to create co-registered 3D datasets including elevation and orthoimages. They specialise mainly on finding change (new impacts, moving dunes, dust devil tracks, polar ice falls, etc.), but also showed a few cool 3D movies of terrain flyovers.

This got me to look into the HRSC data to use for Orbiter, to replace the current MOC/MOLA data. Unfortunately HRSC currently has got fairly patchy coverage, and they don't seem to provide high-level data products so far, so I'll need to stitch the mosaics together myself. But certain scenic areas like Valles Marineris and Olympus Mons seem to be well-covered, so I'll try a local high-res treatment of Valles Marineris to see if this is feasible.
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Old 03-17-2017, 02:23 AM   #2
llarian
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I haven't checked recently myself either, but is there any chance that Pavonis Mons is included in the Valles Marineris and Olympus Mons datasets?
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Old 03-17-2017, 12:16 PM   #3
martins
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Originally Posted by llarian View Post
 I haven't checked recently myself either, but is there any chance that Pavonis Mons is included in the Valles Marineris and Olympus Mons datasets?
The front page of the i-Mars site contains the current level-4 DTM coverage (actually from 2015, according to the caption). According to that, Pavonis Mons is not covered. In fact I may have been wrong about Olympus Mons as well.

Level-3 coverage is more extensive (75% of the surface according to another quote), but I think level-3 doesn't contain the stereo DTM data. I don't know if only a subset of the level-3 data is suitable for level-4 generation, or if they are simply still in the processing pipeline.

I am currently generating a global DTM mosaic from all the level-4 data I can find (up to orbit 6500) to see what is available. Might take me a while to download and process.

Edit: Level-5 coverage is even sparser. Level-5 contains the co-registered mosaics. (hopefully including seam removal). Currently there appears to be only a single area ("MC11E", identified on the i-Mars image) available at level 5. This area was of interest since it contains a number of landing sites.
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