Water Surface Elevation

[Mokwena9]

Hi there, Can you kindly assist with creating the Water Surface Elevation (WSE) raster using the Archydro tool. I require this layer for the flood impact analysis solution

[TomaszDysarz]

Hello,

you should explain two things:

1. What is the format of your input data? And what is the purpose of the analysis? 
2. Why do you want to do this with ArcHydro? If it's WSE along the river channel and floodplains, like in the standard flood hazard analysis, it's possible to use a basic Spatial Analyst for such purpose.

[Mokwena9]

Hi there,

I am trying to use the Flood Impact Analysis Solution to create a flood scenario in my area. The Solution requires a raster WSE which includes a value within each raster grid cell and describes the elevation of the water surface within each grid cell  as the input data....In the video they mentioned that you can use ArcHydro tools to create this layer, but did not mention any tools or workflow to create it 

Can you also provide the Spatial Analyst workflow that can be used for the same purpose?

[Mokwena9]

https://doc.arcgis.com/en/arcgis-solutions/latest/reference/use-flood-impact-analysis.htm

[JulioGarrido]

Hello,

I am in the same boat right now.  The Flood Impact Analysis solution is asking for a Water Surface Elevation.  How do you create one using the Spatial Analyst?  New to the toolset.