HEC-GeoRAS is set of ArcGIS tools specifically designed to process geospatial data for use with the Hydrologic Engineering Center’s River Analysis System (HEC-RAS). ESRI. HEC-GeoRAS 10 is adapted from previous ArcGIS compatible versions. Contributions from HEC staff including Gary W. Brunner, Mark R. Jensen, and comments from the field continue to shape HEC-GeoRAS development. Christopher N. Dunn was Director during the release of HEC-GeoRAS This manual was written by Cameron T. Ackerman. The TIN is the data source from which all geometric data will be extracted to input into HEC-RAS. Without a TIN data set, the user will not be able to proceed in using HEC-GeoRAS. Also, the user may have already prepared data sets using a GIS to use in GeoRAS. They may be selected using the project manager. Figure 13 HEC-GeoRAS project manager.
HEC-GeoRAS is an extension for use with ArcView GIS, a general purpose Geographic Information System software program developed and copyrighted by the Environmental Systems Research Institute, Inc., (ESRI) Redlands, California. HEC-GeoRAS is written in the Avenue programming language. The HEC-GeoRAS extension was developed though a Cooperative. HEC-GeoRAS is a GIS extension that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-RAS and generation of GIS data from RAS. to the RAS GIS Import File. GeoRAS Version 4, introduced capabilities for exporting hydraulic structure data for ofile RI Earth Explorer, and others) and the animation of floodplain results. is manual supports HEC-GeoRAS for ArcGIS and HEC-eoRAS for ArcGIS des an tion of HEC-GeoRAS.
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