HydroProc provides methods for watershed delineation.
Generates an area D8 grid which shows the paths of highest flow and can be used to delineate stream networks.
Generates a D8 directional grid by assigning a number from 1 to 8 (0 to 7 in some algorithms) based on a direction to the lowest elevation cell surrounding that cell.
Generates a grid containing values only in cells categorized as 'stream path cells' by the accumulation threshold method.
Generates a subBasin grid by forming zones encompassing each stream segment based on layout of the matching D8, with each cell in the zone being assigned a unique identifier.
Results in a DEM grid with pits (cells with surrounding cells all higher elevation) filled and plains (areas where there is no change to elevation) estimated to allow a flow path from all locations on the grid.
Generates a stream network shapefile by converting the stream grid into a polyline shapefile.
Generates a SubBasin shapefile formed by converting the zoned grid file into bordering polygons.