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New ASTER data released

Gaiiden

Gaiiden

FSDevConf team
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Dunno anything about terrain design so this may not be useful but perhaps this new ASTER data will help people create some more accurate meshes where necessary?

Either way it's cool stuff :)
 
Hi Drew.

I haven't had a chance to review the v2 GDEM data, but any improvement is a good thing. The v1 data is not very useful due to the anomalies.

Dick
 
Hi,

Agree with Dick. I tried the first version, but was not so impressed with that data for the Netherlands. It had too many mistakes. I plan to have a look soon at the new version and see if it is more useful.
 
Gaiiden said:
I did check... this forum before posting. Didn't think it would pop up anywhere else
Click to expand...
It's alright; I just thought it would be more relevant as general news. I guess the more coverage the better. :)
 
Both the Japanese site and the NASA site are buggy at the moment... probably due to high download traffic. Both download sites are quirky and difficult to get large amounts of tiles.

The tiles are 1 arc second. 3601x3601, I believe. This makes the tile size 9 times larger than the 3 arc second SRTM files. Coverage is 83 degrees north to 83 degrees south. I think the files will be geotiff.

Dick
 
I finally got some GDEM v2 ASTER data. Lots of spikes, pits, mole runs, voids, etc. They are claiming a better water mask, but I'm not overwhelmed.

Right now, the best overall dataset is the CGIAR. And you can use updates from Viewfinder Panoramas data.

ASTER is not suitable for what we need.

Dick
 
Just one question though...

When one tries to download ASTER GDEM tiles from the NASA site it takes you to a shopping cart. My tiles were not downloadable so I can only "order" them. I am a bit puzzled, isn't it supposed to be free? or is that only for the sake of the shopping cart to order the tiles?

Also, the download page says something that you have to agree to redistribute ONLY to people in your project or organization. Does that means that the GDEM tile is not suitable for distribution in FS scenery?
 
The ASTER tiles are full of voids, pits, moleruns, spikes... They really aren't suitable for a simulator without a LOT of extra work.

As far as distribution, for FSX or FS9, you would be distributing a BGL, not the original tiles... it's the tiles they don't want redistributed, as that might lead to many unauthorized versions floating around on the web. But a BGL is not an ASTER tile, so there is no problem with that, as I see it.

Dick
 
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