Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Norwegian Mapping Agency (Kartverket) report 19-04811-18 "Referanserammer og transformasjoner", 19 October 2023; https://www.kartverket.no/
Revision date: 2025-08-24
Scope: Geodesy, cadastre, engineering survey, topographic mapping.
Remarks: EUREF89 is the Norwegian realization of ETRS89. It was realized with GPS campaigns in 1994-1996. Resulting ITRF93 coordinates at epoch 1995.0 were transformed to ETRF93 using a conformal transformation. Formulas correct only rigid plate motion, thus epoch for postglacial rebound is 1997.0.
Area of use: Norway including Svalbard - onshore and offshore.
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeodeticReferenceFrame", "name": "ETRS89-NOR [EUREF89]", "anchor_epoch": 1995, "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "scope": "Geodesy, cadastre, engineering survey, topographic mapping.", "area": "Norway including Svalbard - onshore and offshore.", "bbox": { "south_latitude": 56.08, "west_longitude": -3.35, "north_latitude": 84.73, "east_longitude": 38.01 }, "id": { "authority": "EPSG", "code": 1407 } }