Impact studies and water management with WolfHydro : a new physically based hydrological solver

A spatial finite volume scheme was coupled with an explicit temporal discretisation for each model integrated in the Wolf package. This adaptation to the hydraulic equations is ideal for the numerical treatment and implementation. It provides a complete mass conservation of the propagated volumes and a great reliability for the momentum balance. A second order precision is assumed for both spatial and temporal discretisation. An original splitting of the convective terms was developed in order to treat any transient free surface flow discontinuities.