Delta Hydro Studio
FreemiumVerified
Browser-based hydrology and hydraulics calculators for practising engineers — no install, report-ready output.
3 tools · Topic
Unit Hydrograph Software & Calculators
Unit hydrograph theory turns effective rainfall into a runoff hydrograph, and it is still the workhorse of event-based design hydrology. Listed here: HEC-HMS, whose transform options include the SCS, Snyder and Clark unit hydrographs, and Delta Hydro Studio, which generates unit hydrographs in the browser.
HEC-HMS
FreeVerified
The US Army Corps standard for rainfall-runoff modelling — event and continuous simulation, free to use.
Visual OTTHYMO
Commercial
Hydrologic modeling software for urban and rural stormwater management, master drainage planning, and pond design.