Flood Modelling with HEC-RAS

Partner: Udemy
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Description: This course provides a practical, step‑by‑step workflow to perform flood (inundation) analysis using HEC‑RAS (steady and unsteady flow, 1D/2D coupled), plus methods to assess and manage hydraulic risk. It covers data needs, model setup, calibration/validation, uncertainty analysis, hydraulic hazard mapping, exposure & vulnerability assessment, risk quantification, and recommended risk reduction and management actions.ObjectivesBuild an accurate HEC‑RAS model (1D/2D as appropriate) to simulate design storms and observed events.Produce inundation maps and hydraulic outputs for selected return periods (e.g., 2, 5, 10, 25, 50, 100, 200 years).Quantify hydraulic risk by combining hazard, exposure and vulnerability.Provide actionable recommendations for flood risk reduction, monitoring and emergency planning.ScopeThe workflow is applicable to river reaches, floodplains, urban channels and mixed rural/urban catchments. It assumes available topographic and hydraulic data; it includes optional steps for data‑poor contexts (empirical methods and sensitivity analysis).Required DataTopography / BathymetryLiDAR DEM (preferred) or contour surveyCross‑section surveys along the riverChannel bathymetry for deeper riversHydrologic dataStreamflow/gauge records (continuous or event-based)Rainfall records and IDF curvesDesign hydrographs or frequency analysis (e.g., statistical IDF, flood frequency)Hydraulic dataRoughness/Manning’s n estimates (channel and floodplain)Structures: bridges, culverts, weirs (geometry and invert elevations)Land use / ExposureBuilding footprints, critical infrastructure locationsPopulation
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Price: 19.99
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Source: Impact
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