[GRASS-user] NASA to release no cost 30m DEMs with world-wide coverage on 29 June

Micha Silver micha at arava.co.il
Fri Jun 26 03:48:25 EDT 2009

Thanks, Michael. That's great news.
What do you make of the 20 m./30 m. vertical/horizontal accuracy statement?
Isn't SRTM supposed to be around 15 m. vertical and <10 m. horizontal 
(even tho' it's 90 m. resolution)?


Michael Barton wrote:
> See the following announcement. NASA (USA) will release high 
> resolution DEM's of the globe, produced from the Terra ASTER 
> satellite, at no charge. You can check out the web announcement at 
> <https://lpdaac.usgs.gov/lpdaac/about/news_archive/monday_june_22_20092>. 
> As a Terra ASTER user, I've been using the DEM's for several years and 
> found them to be a very good high-resolution (30x30m)  topography 
> source. 
> Michael

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