15 Tips for Getting Started With GIS

Geographic Information System (GIS) software helps people visualize geospatial information. Although making maps is a big part of GIS, software such as ArcGIS and QGIS is capable of so much more. For example, users can use GIS for hydraulic modeling, perform statistical analyses, and crime analysis. In addition to the numerous applications, GIS is an … Read more

HEC-RAS Projection File

RAS Mapper has allowed hydraulic modelers to more easily perform Geographic Information System (GIS) operations. Many people think that the RAS Mapper and the Geometric Data Editor will eventually merge into one interface. If you want to use this increasingly popular feature in HEC-RAS (RAS Mapper), you must add a projection to your HEC-RAS project. … Read more

HTab Parameters in HEC-RAS

I am working on a one-dimensional (1D) dam-break model in HEC-RAS this week. Typically, I work with 2D HEC-RAS models, so this project has been somewhat challenging. Cross-section placement is an art, and I am slightly out of practice. Anyways, I have been having issues stabilizing the model. This is not an uncommon problem for … Read more