HEC-HMS
FreeVerified
The US Army Corps standard for rainfall-runoff modelling — event and continuous simulation, free to use.
Hydrology & Catchment AnalysisActiveHEC-HMSSCS Curve Number
Wflow.jl
ActiveDeltares' distributed hydrological model in Julia — gridded rainfall-runoff with kinematic-wave routing.
by Deltares
- Pricing
- Open Source
- License
- MIT
- Commercial use
- Permitted
- Ecosystem
- Julia
- Platform
- Windows, macOS, Linux
About Wflow.jl
Wflow.jl is Deltares' open distributed hydrological framework, rebuilt in Julia for speed. Its flagship concept, wflow_sbm, simulates the vertical soil water balance on a grid with kinematic-wave or local-inertial routing — well suited to flood forecasting, water-balance and land-use studies at catchment to national scale.
Paired with HydroMT for automated model building from global datasets, Wflow gets a working distributed model of almost any basin on earth surprisingly quickly, which is exactly how Deltares uses it in global flood-forecasting services. Fully open source and actively developed.
Where it fits in the workflow
TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting
Alternatives to Wflow.jl
Other hydrology & catchment analysis tools covering similar workflow stages.
CROPWAT
Free
FAO's classic tool for crop water requirements and irrigation scheduling from climate and crop data.
Hydrology & Catchment AnalysisDormantIrrigationEvapotranspiration
Browser-based rainfall frequency analysis — fit and rank 11 distributions with confidence intervals.
Hydrology & Catchment AnalysisActiveFlood Frequency AnalysisIDF Curves
HEC-ResSim
Free
Reservoir system simulation from HEC — operating rules, flood control and multi-reservoir networks, free.
Hydrology & Catchment AnalysisActiveReservoir OperationsFlood Routing
HEC-SSP
Free
Statistical hydrology from HEC: Bulletin 17C flood frequency, volume-duration and general frequency analysis.
Hydrology & Catchment AnalysisActiveFlood Frequency Analysis
HydroMT
Open Source
Deltares' Python framework that builds ready-to-run hydrological models from global and local datasets.
Hydrology & Catchment AnalysisActivePython HydrologyDEM Processing