[GRASS-user] Re: Aster DEM

[Daniel Lee]

Am 25. März 2012 20:33 schrieb javier Garcia Prieto <
fjgarciaprieto at hotmail.com>:

>  Oh yes, of course, I'm going to reproject to an UTM Location so I can use
> other maps that I already have. Just a aquestion, with the Aster DEM, it
> comes togeher a NUM file. ¿Do you know what is for?
>

Having rarely worked with ASTER, I can't say - my suggestion would be to
look in the metadata, in whatever form the publish it in. Otherwise I'd
instinctively say it sounds like a kind of metadata raster (I've seen this
with other datasets) where the value of the pixels is some kind of unit for
quality in the actualy elevation data.
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