RAS Mapper of HEC-RAS 6 has a set of terrain modification tools to modify original terrain. This post is the third of the 3 post series for terrain modification using…
RAS Mapper of HEC-RAS 6 has a set of terrain modification tools to modify original terrain. This post is the third of the 3 post series for terrain modification using…
RAS Mapper of HEC-RAS 6 has a set of terrain modification tools to modify original terrain. This post is the second of the 3 post series for terrain modification using…
RAS Mapper of HEC-RAS 6 has a set of terrain modification tools to modify original terrain. Basically the terrain modification tools creates vectors (lines/simple shapes/polygons) with elevations assigned to them…
RAS Mapper of HEC-RAS Version 6 has some basic but useful GIS functions to complete some GIS operations and spatial analyses common to HEC-RAS modeling, although it could not replace…
A bridge can be modeled in 2D domains using a geometry editor similar to 1D bridge geometry editor since HEC-RAS 6.0. HEC-RAS manual defines this method as Simplified 1D/2D Bridge…
In HEC-RAS 2D modeling, manning's n values (Roughness Coefficient) for 2D flow area are normally associated with land cover types and used to account for energy friction losses of overland…
HEC-HMS has the capability to estimate hydrology parameters for watersheds delineated. This post is to demonstrate these functions. The Bear Creek Watershed was delineated in Post 1 of 3 and…
After a watershed has been delineated using HEC-HMS GIS tools, the subbasins and reaches can be further refined using HEC-HMS merge and split functions. Five subbasins and two reaches were…
The new HEC-HMS published around 2020 has some useful GIS tools to delineate a watershed using terrain data. Unlike HEC-GeoHMS, these standalone GIS commands are an integral part of HEC-HMS…
The USGS National Hydrography Dataset (NHD) represents the water drainage network of the United States with features such as rivers, streams, canals, lakes, ponds, coastline, dams, and stream gages. The…