Waterretentiesurve

Waterretentiesurve is a systematic assessment used by water management authorities to evaluate the capacity of a landscape or infrastructure to retain water during periods of excess precipitation. The method combines field measurements, remote sensing data, and hydrological modelling to quantify the volume of water that can be stored in soils, surface depressions, floodplains, and artificial retention basins. The survey is typically conducted in three phases: data collection, analysis, and reporting. In the data‑collection phase, technicians record soil types, land‑use patterns, topography, and existing drainage structures, while satellite or aerial imagery provides up‑to‑date surface water extent. During analysis, the gathered information is input into hydraulic models that simulate runoff and infiltration under various rainfall scenarios, allowing the calculation of water‑retention curves and identification of critical zones where storage is insufficient. The final report presents a map of retention potential, recommended measures for improving storage (such as the creation of new retention ponds, wetlands, or the modification of land‑use practices), and an assessment of the impact on flood risk and water quality. Waterretentiesurve is applied in urban planning, agricultural watershed management, and climate‑adaptation strategies, helping policymakers prioritize investments that enhance resilience to extreme weather events. The approach adheres to guidelines set by national water authorities and aligns with European Union directives on flood risk management and sustainable water use. By providing a detailed, evidence‑based picture of water‑retention capabilities, the survey supports balanced development while protecting ecosystems and downstream communities.