Model data underlying the publication: Drought mitigation as a driver of flood risk: Assessing the trade-offs induced by Natural Water Retention Measures
Wat erin zit
The aim of this study is understand the effects of Natural Water Retention Measures (NWRM) on flood risk in shallow groundwater environments. These were assessed by simulating design storm events in the Chaamse beken catchment, North Brabant, The Netherlands using a sequentially coupled subssurface-subsurface modeling approach. It consists of a dynamically coupled groundwater component (MODFLOW6 model) and a component representing the unsaturated zones (MetaSWAP), which provides input to a hydrodynamic surface water model (Delft3D 1D2D FM). The MODFLOW-MetaSWAP model is based on the regional groundwater model of North Brabant, provided by the Brabantse Delta Water Authority, and was refined from the original 250x250m to a 25x25m grid. The surface water model consists of a Delft3D 1D2D FM hydrodynamic model that consists of a 1D waterway network (including drainage ditches) coupled dynamically to a 2D catchment grid of 25x25m resolution. The stream network was generated based on the Dutch database for surface water systems HyDAMO (NHI, 2024) and the drainage ditches were added manually based on the drainage network of North Brabant. Both datasets were provided by the Brabantse …
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