Storage areas are used in HEC-RAS to model areas with a horizontal water surface. Storage areas boundaries are identified using a polygon boundary. After creating a storage area, the user will be prompted for a unique name.
An elevation-volume curve will be computed from the associated RAS Terrain for use in the hydraulic computations. Elevation-volume relationship is developed by resampling the Terrain raster with approximately 10,000 points within the Storage Area and adding up the cumulative volume for horizontal slices in the the vertical direction.
