How Flood Models Work: From Rainfall to Floodplain Maps
Flood models connect two questions: how much water reaches a river or drainage system, and where that water goes. A hydrologic model converts rainfall, snowmelt and watershed conditions into runoff hydrographs. A hydraulic model then routes that flow through channels, structures and floodplains to estimate water-surface elevation, depth, velocity and inundation extent. A flood map … Read more