The HEC-RAS software is used to simulate one-dimensional steady flow, one-dimensional and two-dimensional and combined one- and two-dimensional unsteady flow, sediment transport, and water temperature (Figure 50) in riverine systems. Water surface profiles can be rendered with HEC-RAS Mapper and exported to GIS for spatial analysis.
Figure 50. Example of HEC-RAS used to create water surface profiles for HEC-EFM statistical results (Riparian tree recruitment and inundation relationships using the Natural flow regime.)