HYDROLOGY
STREAM models how water moves over your terrain, straight from the DEM. Compute flow direction and accumulation, extract stream networks, and delineate watersheds and basins — all as live layers over the surface.
Hydrology analysis derives how water flows across an elevation surface. Flow direction shows where each cell drains; flow accumulation shows where flow concentrates into channels; watershed delineation groups the area draining to a point.
It is fundamental for drainage design, flood and erosion studies, and catchment planning — all read from the DEM.
Compute where every cell drains and where flow concentrates into channels across the whole DEM.
Extract the drainage / stream network implied by the terrain.
Delineate the catchment area draining to a chosen outlet point.
View results as color layers over the terrain and save them as raster or vector.
Flow direction, flow accumulation, stream / drainage network extraction and watershed (basin) delineation — all computed on the DEM.
Yes. All hydrology analysis reads the elevation surface directly, so flow and catchments follow the real terrain.
Yes. Flow accumulation, stream networks and watersheds are the standard inputs for drainage design and erosion / flood analysis.
Free beta for Windows x64. Works fully offline with GeoTIFF, LAS/LAZ and DXF.
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