First data from Venus Express ! |
First data from Venus Express ! |
Apr 13 2006, 03:22 PM
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#1
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Member Group: Members Posts: 370 Joined: 12-September 05 From: France Member No.: 495 |
Unexpected detail in first-ever Venus south pole images
http://www.esa.int/SPECIALS/Venus_Express/SEMUTYNFGLE_0.html |
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Dec 19 2006, 02:00 AM
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#2
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Solar System Cartographer Group: Members Posts: 10226 Joined: 5-April 05 From: Canada Member No.: 227 |
Yes, the Magellan map is modelled temperature based on topography and some assumed lapse rate. The key here is to look for differences between measured and modelled temps, which might reveal hot spots - active volcanism.
And Emily - your map of the Venus hemisphere is - alas - wrong! You are looking at Ovda Regio, not Phoebe. You're about 180 degrees off. Mixed up east and west longitudes? Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Dec 20 2006, 04:35 PM
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#3
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Senior Member Group: Members Posts: 1669 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
Yes, the Magellan map is modelled temperature based on topography and some assumed lapse rate. The key here is to look for differences between measured and modelled temps, which might reveal hot spots - active volcanism. And Emily - your map of the Venus hemisphere is - alas - wrong! You are looking at Ovda Regio, not Phoebe. You're about 180 degrees off. Mixed up east and west longitudes? Phil Greetings, Oooops, I wonder if this errant globe posted for a while in Emily's blog was the same one I had sent her last week or so? I had imported the Venus map that Emily and I had put together into Celestia. I now see there was a 180 degree shift in the way I had imported the map. So when I get the chance I'll try to make a new globe in Celestia - though it'll be a couple of weeks until I'm back to my computer and email. The previous globe I made was just of the radar reflectivity. I also have a shaded/colored relief map of topography on my web site that would also be of interest to compare with the VIRTIS data. If anyone has access to Celestia in the meantime, feel free to give these maps a try. -------------------- Steve [ my home page and planetary maps page ]
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