MOBIDIC (MOdello di Bilancio Idrologico DIstribuito e Continuo) is a physically-based hydrologic model. It is continuous in time and distributed in space, with rasterbased horizontal discretization. MOBIDIC solves a coupled mass and energy balance at the surface and employs a computationally efficient representation of soil moisture dynamics, that has been recently improved.
It has a single layer scheme for soil, whose peculiarity is the conceptual subdivision of the layer into two non-linear reservoirs, the capillary and gravitational one. They correspond to larger pores that drains under gravity and smaller pores that hold water through capillary forces. The two components control different sets of hydrologic fluxes. In particular, available water for evapotranspiration is capillary water, that is fed by gravitational water through an absorption flux.
Interactions between surface and subsurface hydrology are explicitly taken into account. Groundwater dynamics may be modeled through 2-D Dupuit approximation or as a linear reservoir. Three options are available for flow routing through the network,  i.e. the lag approach, the Muskingum–Cunge method and the cascade of liner reservoirs. MOBIDIC runs operatively at the hydrologic service of Tuscany region (Servizio Idrologico Regionale, Regione Toscana) for floods forecasting and water resources management purposes. Spatial resolution up to 10 m cell. Temporal resolution up to 5 minutes.