PCR-GLOBWB Imapct model

The global hydrological model PCR-GLOBWB simulates for each grid cell (0.5 degree globally over the land) and for each time step (daily) the water storage in two vertically stacked soil layers and an underlying groundwater layer, as well as the water exchange between the layers (infiltration, percolation, and capillary rise) and between the top layer and the atmosphere (rainfall, evapotranspiration, and snow melt). The model also calculates canopy interception and snow storage. Water use for agriculture, industry and households is dynamically linked to hydrological simulation at a daily time step. The simulated local direct runoff, interflow, and baseflow are routed along the river network that is also linked to water allocation and reservoir operation scheme.