Laboratory scale modelling of urban flooding at the block level

Urban flood risk is increasing worldwide as a result of environmental changes such as more frequent hydro-climatic extremes and rapid urbanisation. Accurate and reliable tools are critically needed for managing this risk and enhancing flood resilience. Such tools rely on numerical models for computing flood hazard and flood risk. However, the accuracy and applicability of these models still remain hampered by a lack of suitable validation data.
On one side, various sources of uncertainties could be induced in validation data that questions the validity of numerical model application, including from hydrological data, roughness representation, overlooked processes as well as experimental data.