Why RiverFlow2D is your best choice?
RiverFlow2D is more than a flood simulation model since beside its exceptional performance for flood risk assessments it can be used for erosion and deposition assessments, water quality evaluations, mud and debris flows, and more.
RiverFlow2D can be applied to large river reaches. The RiverFlow2D model has been applied by NOAA North Central River Forecast Center to simulate flooding through a 420 miles (~670 km) of the Red River of the North in the USA. The model powerful GPU engine is able to route 60-days hydrograph in 36 minutes.