Water elevation calculation

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04-13-2022 01:24 AM
AronMuijen
New Contributor

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:

AronMuijen_0-1649838101006.png

 

 

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2 Replies
JohannesBierer
Occasional Contributor III

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

KimGarbade
Occasional Contributor III

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/