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elaycock-esristaff
Jack Dangermond, Esri Founder and President, and David Maidment, University of Texas, discuss water resources and how data and technology have grown to support nationwide flood inundation mapping.
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in Arc Hydro
eshreve_azdema
Does anyone know if there are any ArcGIS Pro workflows that support flood inundation modeling? I am looking to eventually replicate what Texas Emergency Management did with their Pin2Flood solution that shows dynamic flood inundation models.   Any help would be appreciated.   Thanks, Eric Shreve
in Arc Hydro
Nlog10
I am deriving flow paths on a hu12-by-hu12 scale. Using the following workflow, I have successfully derived flow paths for a handful of subwatersheds, so I don't understand why my methods aren't working now.   Step 1: (LAS to DEM) I started by setting my filtered LAS files to ground-only points. I derived a bare earth DEM with the LAS Dataset To… (Show more)
in Arc Hydro
omarnofal
This is the error: System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL has been returned from a call to a COM component.    at ESRI.ArcGIS.Geoprocessing.GeoProcessorClass.Execute(String Name, IVariantArray ipValues, ITrackCancel pTrackCancel)    at ESRI.APWR.ApHydro.ArcHydroOp.DEMReconditioningGP(ApLayers apLayers,… (Show more)
in Arc Hydro
sarahbwellsUNC
I am finding the watershed and streams in an area that contains a few roads. It is mistaking some of the roads as streams. How do I make sure the stream extraction isn't picking up the roads as well?
in Arc Hydro
sarahbwellsUNC
I am finding the watershed and streams in an area that contains a few roads. It is mistaking some of the roads as streams. How do I make sure the stream extraction isn't picking up the roads as well?
zieglerhm_CDMSmith
Click to view contentI used the "Burn Stream Slope" function in ArcHydro and the results are.. strange. When I use the identify on the previous DEM and the resulting DEM at the top of a hill (not at a stream) the entire DEM has shifted elevation by over 44 feet! Is this normal, or did something go very wrong?     Note: I used the default values for Assign Stream… (Show more)
in Arc Hydro
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