Thanks alot,Mr.Price and Mr.Goodell,are helping out HEC RAS users.HEC RAS 6.0 going to be much better application then commercial softwares. Does HEC RAS 6.0 solves coastal flooding?
Hello Krey, thank you very much indeed for this informative video and updates on HEC-RAS 6.0 version. I am still hoping whether in the near future there will be new webinars or detailed instructive videos on the application of the Meteorological Data option at the Unsteady Flow Data menu since the release of beta versions, in particular, using Point or Gridded/NetCDF type of Precipitation data as inputs.
Really nice video, Sir! It's great to see that RASMapper is even more powerfull! I've a question: When you re-run your model with the new Manning file, I suppose that you'll get new depth values and should create a new Manning file again. So we could use a trial and error method to adjust the depth-varying roughness in a way that depth from the Manning classification matches the depth results?
Yes, it might take a few iterations to get it to stop changing, but in general we're just trying to differentiate concentrated flow areas from sheet flow areas, so in many cases the first approximation will be close enough given the inherent uncertainties in roughness coefficients and other input parameters. And there are a lot of models that would benefit from classification polygons that override the land cover layer with roughness coefficients that do not vary with depth (for buildings, etc.)
Really nice video, Sir! and i have a problem:i simulate a river flood by RASMapper according to the DEM,but the results of flood routing‘time is earlier than the fact.i try to solve by many methods and It's not going to work.so what should i do now?
Very excited with the new version, and your videos are really great! This might be a extremely basic question but I seem unable to find a concrete information. Is HEC-RAS (or HEC-HMS, etc.) free for any use, including commercial use? What I understood from their "license" is that they take no liability to the use of the software, but I could gather nothing more. Thank you!
sir, I am from Pakistan I want to download elevation data for my study area but there is no data available just like you show in your videos the elevation data for Australian I want to analyze and model 1D mode what I will do please reply me
respected sir, which equation is better in CSU & Froehlich equations for scour depth. Case 1- When we have to study on grain size. case 2- When to use pier shapes & pier sizes.
Corps of Engineers hasn't updated scour computations for a very long time and HEC-RAS does a pretty poor job of it. You should be using CSU for pier scour and the so-called "NCHRP 24-20" method for bridge contraction and abutment scour. If scour estimations needed for bridges, the user should consult and follow the latest version of FHWA publication HEC-18. It's what state DOT's typically follow.
Thanks alot,Mr.Price and Mr.Goodell,are helping out HEC RAS users.HEC RAS 6.0 going to be much better application then commercial softwares.
Does HEC RAS 6.0 solves coastal flooding?
great topic, solution and presentation
Hello Krey, thank you very much indeed for this informative video and updates on HEC-RAS 6.0 version. I am still hoping whether in the near future there will be new webinars or detailed instructive videos on the application of the Meteorological Data option at the Unsteady Flow Data menu since the release of beta versions, in particular, using Point or Gridded/NetCDF type of Precipitation data as inputs.
Really nice video, Sir! It's great to see that RASMapper is even more powerfull! I've a question: When you re-run your model with the new Manning file, I suppose that you'll get new depth values and should create a new Manning file again. So we could use a trial and error method to adjust the depth-varying roughness in a way that depth from the Manning classification matches the depth results?
Yes, it might take a few iterations to get it to stop changing, but in general we're just trying to differentiate concentrated flow areas from sheet flow areas, so in many cases the first approximation will be close enough given the inherent uncertainties in roughness coefficients and other input parameters. And there are a lot of models that would benefit from classification polygons that override the land cover layer with roughness coefficients that do not vary with depth (for buildings, etc.)
@@TheRASSolution Really interesting! Thanks for the explanation!
Really nice video, Sir! and i have a problem:i simulate a river flood by RASMapper according to the DEM,but the results of flood routing‘time is earlier than the fact.i try to solve by many methods and It's not going to work.so what should i do now?
Very excited with the new version, and your videos are really great! This might be a extremely basic question but I seem unable to find a concrete information. Is HEC-RAS (or HEC-HMS, etc.) free for any use, including commercial use? What I understood from their "license" is that they take no liability to the use of the software, but I could gather nothing more. Thank you!
Is there a video where you show which data files you downloaded? If not, what data files would you recommend downloading from USGS?
sir, I am from Pakistan I want to download elevation data for my study area but there is no data available just like you show in your videos the elevation data for Australian
I want to analyze and model 1D mode
what I will do
please reply me
respected sir,
which equation is better in CSU & Froehlich equations for scour depth.
Case 1- When we have to study on grain size.
case 2- When to use pier shapes & pier sizes.
Corps of Engineers hasn't updated scour computations for a very long time and HEC-RAS does a pretty poor job of it. You should be using CSU for pier scour and the so-called "NCHRP 24-20" method for bridge contraction and abutment scour. If scour estimations needed for bridges, the user should consult and follow the latest version of FHWA publication HEC-18. It's what state DOT's typically follow.
Can it not use int directly in the calculated layer? Int(1.0)?