HEC-RAS

Hydrologic Engineering Center - River Analysis System

The Hydrologic Engineering Center's River Analysis System (HEC-RAS) is a river model that captures both one-dimensional steady and unsteady and two-dimensional unsteady flow dynamics, sediment transport, water temperature, water quality and flow interactions with physical river structures.

Developer
USACE
Model Information
For more information about this model, go to www.hec.usace.army.mil
Spatial Resolution
River system is split into reaches. The spatial resolution is based on the defined reaches and calculations are executed based on the specified cross section interval define for each reach.
Temporal Resolution
Steady state or dynamic simulations can be run and computations are completed on the order of minutes.
Outputs
Outputs include river routing and flood inundation.
Intended User
practitioner
Model Type
watershed
Inclusion of Climate Change
Model can generate forecasts but not specially for climate scenarios.
Geographic Region
generalized
Data Requirements
data provided by the user
Source Code Availability
open source
Dimensions
2d
Computational Burden
medium
Scenario Modeling
scenarios by hand only
Coding Language
GUI
Operating System
not applicable
Mathematical Approach
deterministic
Maintenance Plan
maintained
Date of Last Known Update
1-Mar-19
User Manual
go to documentation at www.hec.usace.army.mil