Hydrologic Modeling Engine Skill Purpose The Hydrologic Modeling Engine Skill performs hydrologic analysis including rainfall-runoff modeling, flood frequency analysis, and watershed characterization using established methods. Capabilities - Rational method calculations - SCS/NRCS curve number method - Unit hydrograph generation - Reservoir routing - Time of concentration calculation - IDF curve analysis - Flood frequency analysis - Watershed delineation Usage Guidelines When to Use - Estimating design flows - Analyzing watersheds - Designing stormwater facilities - Evaluating flood risk Prer…