I would like to know if there is a way to identify lakes based on an elevation raster (like SRTM or ASTER)? As far as I can understand, it would mean identifying any cell below the elevation of neighbouring cells, but I can't find anything related so I suppose it's not that simple...
The closest thing I figured out was to use r.watershed to identify small basins (10 to 100 threshold), and then rank them according to their accumulation. Some basins show a quite higher level than the surrounding ones, so I figured out it could mean a lake or something...
Any idea of how to do it better, in GRASS or QGIS? Is it even possible?
أكثر...
The closest thing I figured out was to use r.watershed to identify small basins (10 to 100 threshold), and then rank them according to their accumulation. Some basins show a quite higher level than the surrounding ones, so I figured out it could mean a lake or something...
Any idea of how to do it better, in GRASS or QGIS? Is it even possible?
أكثر...