Identifier for the site's coordinate reference system. Use this to switch to a different published coordinate reference system, or from the default to a Local Site Calibration once the calibration file has been uploaded.
A Local Site Calibration is created through the uploads endpoint as a LOCAL_CALIBRATION upload. Once the upload is complete, its id can be found in the upload's created_entities. Reference it with the same id in both CRS components and authority set to PROP-LOCAL, for example:
JSON
{
"horizontal": {"authority": "PROP-LOCAL", "id": "sc1234abcd"},
"vertical": {"authority": "PROP-LOCAL", "id": "sc1234abcd"}
}Warning: Changing an existing coordinate reference system has consequences:
Future data will be processed using the new coordinate reference system.
Existing datasets and design files are not converted automatically. They may no longer align or may appear in the wrong location or elevation.
Reprocess existing surveys and re-upload designs after the change to keep site data aligned.
