Coordinate systems FAQ

What Coordinate Systems are supported?

TerraFlex supports a curated list of the most recent and relevant coordinate systems for a given region or country.

For information on coordinate systems supported in TerraFlex, see Coordinate Systems Supported in TerraFlex.

What happened to the NAD83 (Conus) datum?

Unlike NAD83 (2011) and NAD83 (CORS96), NAD83 (Conus) is not a true realization of the NAD83 datum. NAD83 (Conus) was available in the TerraSync and Pathfinder Office software only as a book-keeping datum - a datum that can be used without any transformation being applied. This meant the coordinates for a feature exported as 'NAD83 (Conus)' would actually be in the same datum as the correction source, typically NAD83 (2011) when using VRS or post-processing. With the changes in TerraFlex these book-keeping types of datums are not required, and Trimble recommends customers in the US use the NAD83 (2011) datum option.

How do I know that the data I collect with TerraFlex will align with my historical data?

Aligning with historical data is often driven by knowledge of historical and modern coordinate systems used in the project area. An overview of coordinate systems, and the common pitfalls associated with working with GIS data is covered in our blog series Coordinate Systems in Trimble GIS Workflows. TerraFlex provides the ability to set up and collect project data in both global and local coordinate systems to ensure maximum flexibility. For a complete list of supported coordinate systems, see Coordinate Systems Supported in TerraFlex.

Where can I learn more about coordinate systems?

An overview of coordinate systems, and the common pitfalls associated with working with GIS data is covered in our blog series Coordinate Systems in Trimble GIS Workflows.