topic Water elevation calculation in ArcGIS Pro Questions

Water elevation calculation

AronMuijen — Wed, 13 Apr 2022 08:24:18 GMT

Can I calculate flooding in arcgis based on a geotiff with water elevation?

I have a geotiff file containing water elevations from 0 to 5 meters. In addition, I have a shapefile containing the perimeter of a number of properties. Now I would like to know what the water height in a building is based on the geotiff. However, I have no idea how this should be done, does anyone have an idea?

Thanks in advance!

The geotiff:

Re: Water elevation calculation

JohannesBierer — Wed, 13 Apr 2022 08:39:07 GMT

Don't know if I understand you right, but there's a tool "add surface information" in Spatial Analyst? Maybe you can use it to add the information of the geotiff to your feature class of buildings?

https://pro.arcgis.com/de/pro-app/latest/tool-reference/spatial-analyst/add-surface-information.htm

Re: Water elevation calculation

KimberlyGarbade — Wed, 13 Apr 2022 09:32:08 GMT

A few links that might help. Not sure the first one does what you want since it just shows the "volume" below a predefined elevation.

https://pro.arcgis.com/en/pro-app/2.8/tool-reference/3d-analyst/surface-volume.htm

If you actually want to.predict flooding then that is much more complex. You can use Spatial Analyst extension tools.

https://learn.arcgis.com/en/projects/predict-floods-with-unit-hydrographs/