Fill sinks of the digital elevation model
Calculate flow direction
Calculate flow accumulation
Stream definition (ArcHydro tool)
Stream sedimentation (ArcHydro tool)
Catchment grid delineation (ArcHydro tool)
Catchment polygon processing (ArcHydro tool)
Drainage line processing (ArcHydro tool)
Convert raster stream network to feature (vector stream network) (ArcHydro tool)