Extracting Water Surface Elevation for Levee Profile Lines
This article shows how to fix the "Weir Submergence Not Set" error.
McBreach Probabilistic Dam Breach Modeling – Free Webinar
ICEWaRM will be hosting this free webinar where I’ll be discussing the software program McBreach and its application to probabilistic dam breach modeling. Come join in! Please note the the webinar start time for your particular time zone. Starts at 10:30 AM local Sydney Australia time on Wednesday, Nov 6th. That is 3:30 PM on Tuesday, Nov […]
Terrain modification and direct rainfall: video walk-through
Terrain Modification Two previous blog posts have addressed terrain modification in HEC-RAS (the December 2014 article entitled Including Channel Bathymetry into your Terrain and the June 2015 article entitled Lifting Terrain in HEC-RAS 5.0). These have been some of the most popular posts to date, each having generated almost 10,000 views over the years! Interchangeably referred to […]
Back to the Basics: Bank Station Placement – Part 2
Expanding upon Chris’ discussion of where to place bank stations, what should you do about high terrain somewhere in the middle of your cross section? Here is an example: How should we treat the left overbank? It’s hard to tell if the high area next the left bank is isolated (i.e., it would be an […]
Exploring HEC-RAS: XS Interpolation Within a Reach-Part 2
The last post on XS interpolation gave an overview for reasons cross section interpolation may be necessary and a detailed description of Interpolation Option A: “Within a Reach”. http://hecrasmodel.blogspot.com/2014/05/exploring-hec-ras-xs-interpolation.html This post will cover Option B: “Between 2 XS’s”. Between 2 XS’s simply means HEC-RAS will interpolate cross sections ONLY between two selected “non-interpolated” cross sections. […]
Connecting a River to an Off-channel Storage Area using a Lateral Structure
An off-channel storage area in HEC-RAS can be a very useful way to simulate flooding in interior areas, adjacent ponds and lakes, urban areas next to rivers, green storage, or just about any area that you expect to flood but will be better represented as ponded water versus actively conveying water. Connecting rivers to off-channel […]