Dealing with shallow groundwater contexts for the modelling of urban hydrology – A simplified approach to represent interactions between surface hydrology, groundwater and underground structures in hydrological models

Hydrological modelling can be a relevant tool to support sustainable planning decisions. However, urban hydrological models usually rely on simplified underground representation that may limit their applicability in shallow groundwater environments. This paper introduces set of modules designed describe the numerous interactions between subsurface processes and surface hydrology occur such contexts. The provide rather straightforward approach simulate influence as well several structures (sewer systems, building basements, …) storage volumes managed by sewerage network. are evaluated comparison with reference over theoretical test cases integrated within URBS model. An application realistic hypothetical watershed is carried out illustrate benefits feasibility these focussed development existing models.