GAIA solves sediment transport and morphological evolution problems in rivers, coastal seas, estuaries and reservoirs. By a clear treatment of sedimentary processes that happen in the water column, in the bed structure, and at the water–bed interface. The module GAIA efficiently manages the spatial and temporal variability of sediment size classes, the different properties for cohesive and non-cohesive sediments, and the transport modes (bedload and suspension) for two- and three dimensions.

Sediment concentration in an idealized reservoir