The overall aim is to develop a nested-scale floodplain hydrological model, consisting of a calibrated coupled surface water-groundwater model. Subsequently, the application of the floodplain hydrological model will show how the hydrological status of the floodplain may change through changes in channel morphology (through bank seepage), climate change, land cover change, urbanisation, and local floodplain management actions (e.g. blocking of drainage channels). Both intra-annual as well as inter-annual changes in groundwater level in floodplains will be simulated.
Several specific tasks/objectives can be identified: (1) Measuring groundwater-surface water interactions; (2) Developing a coupled groundwater-surface water model at the regional and nested scale; (3) Advanced uncertainty quantification and calibration using alternative state variables; (4) Scenario-based modelling of future floodplain hydrology.