"Water Resources Engineering Explained: Systems, Hydrology & Sustainable Water Management" is an open educational resource (OER) module authored by Prep4Uni.Online. It establishes the mathematical formulations, physical continuum laws, and computational modeling paradigms governing modern aquatic infrastructure and environmental balance.
The curriculum spans seven core technical domains—surface/groundwater hydrology, open-channel and pipe network hydraulics, municipal water treatment, flood defense engineering, irrigation delivery, hydropower generation, and stormwater management. It integrates Integrated Water Resources Management (IWRM) principles with real-world case studies including the Three Gorges Dam, the Thames Barrier, and Singapore's NEWater circular reclamation. Key interactive assets include a client-side Watershed Hydrograph & Detention Basin routing canvas simulator, a water conveyance and flood system trade-off matrix, a fully worked open-channel hydraulic jump energy dissipation calculation, and three tiers of review exercises. Available online as an interactive module and permanently archived with a persistent DOI via Zenodo.