HEC-GeoRAS allows you to create geometric data from a digital terrain model (DTM) and visualize water surface profile results:
However, for organizations that have not yet migrated their workflows, ArcGIS 10.8 paired with HEC-GeoRAS remains a robust, reliable, and highly precise environment for flood modeling and floodplain management. If you're looking to get started, I can help you with: Finding the Setting up your folder structure for a new project
: Always project your elevation data (DEM) into a local Projected Coordinate System (PCS) before starting to avoid projection "leftover" issues.
: Always project your DEM into a Projected Coordinate System (local PCS) before starting preprocessing to ensure accurate area and length calculations.
Are you looking to take your flood risk analysis to the next level? Look no further than HEC GeoRAS, a powerful extension for ArcGIS that allows you to create detailed floodplain models and analyze watershed characteristics.
The short answer: