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Updated Titan Map
scalbers
post Jul 1 2020, 09:29 PM
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Indeed - great to see the surprises!


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sittingduck
post Aug 27 2020, 01:46 PM
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Recently I have tried to put together an informed but decidedly artistic depiction of the topography of Mayda Insula.

I have used as a basis the relatively low resolution DEM derived from Cassini RADAR stereogrammetry from Kirk et al. 2008. This has been modified to trace apparent dissection of the terrain visible in the T25 and T28 RADAR swaths, as well as the beautifully processed version made available here by Ian. Finally this has been loosely verified by iteratively illuminating the resulting DEM and comparing it with the radar image to try to by-eye match highlights and shadows resulting from the topography. Finally I have convolved the DEM with a gaussian kernel to ensure it is still largely in agreement with the original Kirk et al. elevation model.

All in all it is far from perfect, but it was an interesting exercise and hopefully you will enjoy the result. I include a top-down view of the DEM, an animated gif comparing my illuminated DEM and the RADAR image, and an oblique perspective view of the island (or peninsula, seems hard to find anyone certain about this) with exaggerated elevation.
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ngunn
post Aug 28 2020, 01:25 PM
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Very nice, thanks for posting.

I just found this interesting article on the topography of another special place - the Huygens landing site:
https://agupubs.onlinelibrary.wiley.com/doi...29/2020EA001127
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Antdoghalo
post Feb 8 2021, 12:19 AM
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Made a 32K version of my previous Titan map. The sand dunes and individual valleys are easily visible
https://www.flickr.com/photos/60012030@N02/...157717516744806


Now if only the USGS would release a HISAR map with the last 2 years of swaths that would be great.


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titanicrivers
post Mar 31 2021, 05:05 PM
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Thanks for your great ISS-SAR composite Titan map Antdoghalo! It has been a while since I viewed the Titan blog and I am humbled by the advancement made in Titan mapping!
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kymani76
post Jul 7 2023, 07:07 PM
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QUOTE (Antdoghalo @ Feb 8 2021, 01:19 AM) *
Now if only the USGS would release a HISAR map with the last 2 years of swaths that would be great.

As I realized an update from USGS won't be arriving anytime soon, I proceeded to create my own version of SAR map for flybys 108, 113, 120, 121 from BIDRs.
It was a steep learning curve working with this dataset at the beginning, with some details of the process still eluding me, but in the end all the pieces fell into their right places
and a little more of the Titan's surface got revealed. Here is a result, down-sampled to fit in here. VIMS map is at the bottom, overlayed by transparent USGS SAR map to T104 and finally
T108-121 coverage on top in B&W.

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