Suitability Modeler -No Data

[Dkumar18]

Hi everyone,

I'm working on a suitability model and incorporating floodplain data as part of the analysis. I’ve converted the floodplain layer from vector to raster using area values.

What I want to achieve is this: areas within the floodplain should not have any suitability value at all—essentially, they should be excluded from the model output entirely.

However, I'm running into issues:

• Applying an inverse function still assigns a value to the floodplain areas, which I don’t want.

• I also tried using the "Identify Restricted Locations" tool, but that only creates a separate restricted layer and doesn’t actually exclude those areas from the final suitability output.

Has anyone successfully excluded floodplain (or similar constraint) areas from a suitability model so that they show up as null or no data in the result? Any suggestions or best practices would be appreciated.

[DanPatterson]

use 

Set Null (Spatial Analyst)—ArcGIS Pro | Documentation

to convert the floodplain value to nodata

[BrendanNewell · Accepted solution]

hi @Dkumar18,

Identify restricted locations should work in your above use case.

Once you have specified your clause, select apply (this will create a layer), then select apply restricted (you will now see the floodplain areas excluded from your model.

• https://pro.arcgis.com/en/pro-app/3.3/help/analysis/spatial-analyst/suitability-modeler/exclude-rest...

[Dkumar18]

Thanks it worked, Also do you know if there is any possibility to show individual scores of the data layers in the final suitability score? 

[BrendanNewell]

would we want this information in a separate rasters or as a single raster?

On a side note this information is also shown in the suitability report