| 1 | 🌊 Clark | Flow is routed using the Clark unit hydrograph method. Lag time and time of concentration are defined by the user. | Time of concentration, Lag time | France and anywhere the Hydrological Engineering Center’s Hydrological Modeling System (HEC-HMS) models are used. |
| 2 | 🇫🇷 Desbordes | Flow is routed using a single linear reservoir, whose routing coefficient depends on subcatchment area, ground slope and percentage impermeable. | Catchment slope, Catchment dimension (length) | French systems running with event based simulations. |
| 3 | ⛩️ Kadoya | Flow is routed using the Japanese Quasi Linear Reservoir Method. | Catchment area | Standard runoff model in Japan. |
| 4 | 🌄 Large Catch | Flow uses two equal linear reservoirs in series. | Catchment slope, Catchment dimension (length) | UK systems where subcatchments are larger than 1 ha. |
| 5 | 🇯🇵 Non-Linear | Flow is routed using the Japanese Storage Function Method. | Catchment slope, Catchment dimension, and more... | Standard runoff model in Japan. |
| 6 | 🇬🇧 ReFH | Flow is routed using a kinked triangle unit hydrograph. | Time to peak, Unit hydrograph peak, Degree of kink | UK drainage systems. |
| 7 | 🏞️ SCS Unit | Flow is routed using an SCS unit hydrograph. | Catchment area, Time to peak, Base Time | Rural areas (except mountainous or flat wetland areas). |
| 8 | ⛰️ Snyder Unit | Flow is routed using the Snyder unit hydrograph method. | Peaking coefficient, Lag time | Subcatchments in the Appalachian Highlands. |
| 9 | 🌪️ SWMM | Flow is routed using a single non-linear reservoir. | Catchment slope, Catchment dimension (width) | USA drainage systems using the SWMM runoff model. |
| 10 | 🕰️ Unit | Flow is routed using a unit hydrograph. | Varies based on calculation method | Varies based on calculation method. |
| 11 | 🌦️ Wallingford | Flow uses two equal linear reservoirs in series. | Catchment slope | UK systems where sub-catchments are under 1 ha. |
| 12 | 📐 Rational | Flow is routed using a triangular unit hydrograph. | Varies based on Time of concentration method | Developed for subcatchments in Japan. |
| 13 | 🇩🇪 Cascade | Flow is routed using a number of linear reservoirs in series. | Storage factor K | Suitable for Germany or similar climates. |
| 14 | 🌐 RAFTS | Flow is routed using 10 non-linear reservoirs. | Degree urbanization, RAFTS parameters, and more... | Hydrology modeling in various regions. |
