HEC-RAS


Also found in: Wikipedia.
AcronymDefinition
HEC-RASHydrologic Engineering Centers River Analysis System (environmental simulation modeling)
References in periodicals archive ?
Later on, the HEC-HMS hydrograph is the input parameter of the HEC-RAS 2D model, which simulates the inundation boundary of the basin.
US ACE, 2011: HEC-GeoRAS: GIS Tools for Support of HEC-RAS using ArcGIS.
HEC-RAS model input cross-sections data were collected from physical survey and extracted from DEM SRTM 90 m by using Hec-GeoRAS.
From the hydraulic simulations using HEC-RAS [12] it is found that water surface elevations without dyke is 2.
La utilizacion de la interface HEC-GeoRAS, el MED del area de estudio y los niveles de agua generados por el programa HEC-RAS, permitieron la obtencion y visualizacion de las zonas de desborde correspondiente a un caudal de regimen supercritico (NF > 1); es decir, un flujo de alta velocidad propio de cauces de gran pendiente o rios de montana (Figura 4).
Una vez generados estos insumos del modelo, con la extension de ArcCIS, HEC-CEORAS, se importan al modelo hidraulico HEC-RAS para iniciar con la revision, pues el programa detecta errores en los rios por fallas en la interseccion, nombres de los rios y tramos o tramos no unidos correctamente.
Key Words: Jinnah barrage, rehabilitation and modernization project, subsidiary weir, two-step weir, HEC-RAS
Existing drainage ditches were redesigned utilizing natural channel design concepts (Rosgen 1995) along with HEC-RAS hydrologic analysis and were then interconnected to a network of twelve constructed storm water wetlands (figures 13 and 14) ranging in size from 0.
The HEC-RAS model was then downloaded and the elevations compared.
These models have recently evolved towards HEC-HMS and HEC-RAS, which should be used in the near future.
A native of Hungary, he has returned annually over the past 10 years to lecture on floodplain management and provide instruction in modeling programs such as HEC-RAS and FLO-2D.