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
airGR
ActiveINRAE's GR rainfall-runoff models (GR4J family) plus CemaNeige snow, packaged for R.
by INRAE
- Pricing
- Open Source
- License
- GPL-2
- Commercial use
- Permitted
- Ecosystem
- R
- Platform
- Windows, macOS, Linux
Install
install.packages("airGR")About airGR
airGR wraps the INRAE (ex-Cemagref) family of parsimonious rainfall-runoff models — GR4H, GR4J, GR5J, GR6J and friends — with the CemaNeige snow module, calibration routines and diagnostic plots, all in R. GR4J in particular is a four-parameter model with decades of benchmarking behind it and remains astonishingly hard to beat for daily streamflow simulation.
For lumped catchment modelling, frequency-augmentation studies or teaching, airGR is about the fastest route from data to a credible calibrated model. Companion packages add a Shiny interface (airGRteaching) and semi-distribution (airGRiwrm).
Where it fits in the workflow
TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting
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