2016-09-16 0:14 GMT-05:00 Eddison Araya :
> El 15/9/2016 9:00 a. m., "José Anderson"
> escribió:
>>
>> Dear all,
>>
>> I'm in need to start a study in a urban area in which the DTM
>> (https://en.wikipedia.org/wiki/Digital_elevation_model) is
Hello José,
There is basically three global DEM freely available:
- Aster DEM, which is agreed to be garbage
- SRTM, which is the reference
- the newly released ALOS DEM, which seems to be the best quality of all 3.
They are surface models, so trees and buildings are affecting the altitude
El 15/9/2016 9:00 a. m., "José Anderson"
escribió:
>
> Dear all,
>
> I'm in need to start a study in a urban area in which the DTM (
https://en.wikipedia.org/wiki/Digital_elevation_model) is to be obtained
from a DEM (SRTM or ASTER).
>
> I've seen GRASS7 can provide