Hydrological raster preparation

Prepares an elevation grid for a hydrological model with own steps: it fills depressions with a priority-flood algorithm with a small slope, derives flow direction with the D8 method using the steepest drop per distance, computes downstream flow accumulation and marks streams above a threshold. It shows the number of cells, filled depressions and their volume, the number of sinks and outlets, the largest accumulation with its cell, stream cells and coverage, plus a ready CSV.

Fill in the fields, run the tool and review the result. Your input is not added to a public page. Use the learning mode for calculation details.