Select the Single Terrain Type, and browse to baxter_tin in the Terrain folder. Browse to for RAS GIS Export File (RASModel folder). In the layer setup for post-processing, first select the New Analysis option, and name the new analysis as Test_CE540, Test_CIVE7397 or any name you like. Now click on RAS Mapping Layer Setup to open the post processing layer menu as shown below: The XML file will be saved with the input file name in the same folder with an xml extension In the Convert RAS Export RAS SDF to XML window, browse to (RASModel Folder), and click OK. Flood inundation mapping In ArcGIS (open Baxter10.mxd, which is provided in the data) click on Import RAS SDF file button to convert the SDF file into an XML file. We will now return to ArcGIS to create a flood inundation map. For this exercise we will choose the one with maximum flow (Biggest profile), and accept the default export options.Ĭlick on Export Data button, which will create a SDF file in your working directory. Click on Select Profiles to Export button, and choose the profile you want to export.
To export the HEC-RAS output data to ArcGIS click on FileExport GIS Data in the main HEC-RAS window. Exporting HEC-RAS Output (Before exporting HEC-RAS to ArcGIS, you need to run your HEC-RAS Model) Now launch HEC-RAS, open the RASModel and Run it for Subcritical flow conditions. In our class, will use the HEC-RAS model provided in the folder RASModel (see above). You can find multiple tutorials on pre-processing. Running HEC-RAS This hydraulics tutorial doesnt cover pre-processing of data. The ApUtilites menu contains functions mainly for data management. The RAS Mapping menu contains functions for post-processing of HEC-RAS results to produce flood inundation map. The RAS Geometry menu contains functions for pre-processing of GIS data for input to HEC-RAS. The HEC-GeoRAS toolbar has four menus (RAS Geometry, RAS Mapping, ApUtilities, Help) and seven tools/buttons (Assign RiverCode/ReachCode, Assign FromStation/ToStation, Assign LineType, Construct XS Cutlines, Plot Cross Section, and Assign Levee Elevation) as shown in circles and boxes, respectively in the figure below. You can either leave the HEC-GeoRAS toolbar on the map or dock it with other toolbars as desired. Now load the HEC-GeoRAS toolbar into ArcGIS by clicking on Customize Toolbars HEC-GeoRAS to see the toolbar as shown below: You can check this by clicking on CustomizeExtensions, and checking the boxes (if they are unchecked) next to 3D Analyst and Spatial Analyst as shown below:Ĭlose the Extensions window. Since Hec-GeoRAS uses functions associated with ArcGIS Spatial Analyst and 3D Analyst extensions, make sure these extensions are checked. Save the ArcGIS document (by clicking FileSave As) as baxter_georas.mxd in your working folder. Start ArcGIS by clicking Start ProgramsArcGISArcGIS. The GeoRASData folder contains three sub- folders, one TIN dataset, a RASModel and one aerial image (as raster grid) as shown below (ArcCatalog view):įor our class, we will use the HEC-RAS model available in the folder RASModel (see above). C:\) (If you dont work in your local drive, you may have problems exporting HEC-RAS to Arc GIS), and unzip its contents.
#HOW TO CREATE A NEW LAYER ARCGIS 10.3 ZIP FILE#
The data required for this tutorial is available at Download the zip file on your local drive (e.g. You can download HEC-RAS and HEC-GeoRAS from the US Army Corps of Engineers Hydrologic Engineering Center website at Data Requirements ArcGIS 10.1 or newer (*if you use HEC-GeoRAS 10.2, use ArcGIS 10.2). Special thanks to Ayse Yesil Ozden, Ahmet Yolcu Objectives of this Tutorial: The objective of this tutorial is to give a brief introduction on the use of HEC-GeoRAS with ArcGIS and HEC-RAS for flood inundation mapping in one- and two-dimensional steady and unsteady flow conditions Computer Requirements 1. WRE Questions and comments to Research Web page of Instructor: Contributors: Arturo S. Tutorial on using HEC-GeoRAS 10.1 (or newer) with ArcGISġ0.1 (or newer) and HEC- RAS 5.0.3 (or newer) for flood inundation mapping in Steady and Unsteady Flow Conditions University of Houston Department of Civil and Environmental EngineeringĬIVE 7397 Unsteady flows in Rivers and Pipe Networks/Stormwater Management and Modeling / Optimization in Water Resources Engineering WRE Department of Civil and Environmental Engineering University of Houston
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