Adding local geoid

Question

Is it possible to add a local geoid to ArcGIS Pro? I created a DEM in Agisoft which uses NAD83(CSRS)/UTM Zone 8N as a coordinate system, but is using a local geoid. I have a few versions of the geoid, one of which is a tiff but can not figure out how to import it.

Thanks,

Ben

Bojan≈†avriƒç · Answer

@RyanDillingham @BenPearse

Great news! You can now create your own custom vertical transformations using local geoid models in ArcGIS Pro. The Create Custom Vertical Transformation tool, introduced in ArcGIS Pro 3.2, is available in the Data Management toolbox. At that time, my colleague published a blog post titled How to Create and Use a Custom Vertical Transformation in ArcGIS Pro, which also explains the required file format for custom geoid models and where to place them to enable these transformations.

Since 2021, we have also expanded support for geoid models to include additional countries for which we were able to obtain the necessary data and definitions. Below is a map of the countries currently supported in ArcGIS Pro 3.4. Please note that to use these geoid models, you must install the ArcGIS Coordinate Systems Data component along with ArcGIS Pro.

I hope this helps,
Bojan

RyanDillingham · Answer

It would be awesome if ArcPRO had better GEOID and Elevation capabilities. I run into this all the time.

BenPearse · Answer

Thanks! I will give that a try.