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Results tagged with grass-gis
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user 158075
GRASS GIS (Geographic Resources Analysis Support System) is a free, open source geographical information system (GIS) specialized in handling raster, topological vector, image processing, and graphic data. GRASS GIS is a high performance analytical GIS and remote sensing with focus on modularity. Users can process both day-to-day data as well as massive time series.
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r.watershed stream/rivers pixel size
I am using r.watershed to get a stream map (which I assume is rivers). However the output rivers is always 1 pixel wide. I would've assumed that if I run this on say Iraq I would see the Tigris and Eu …
- 175
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Flatten/smooth/reduce noise in SRTM elevation maps
Is it possible to "flatten" some areas in an elevation map using GRASS?
For example I have an elevation map of Iraq. I'd like to smooth out the mostly flat areas while still keeping things like rivers …
- 175
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GRASS GIS change raster output size?
I have a large inut raster geotiff map of size 12000x9000.
I am running r.watershed to output a stream raster map. However it is much lower resolution, only about 960x711.
How do I make GRASS GIS / r. …
- 175