EPSG:CODE

ETRS89 to BI height (2)

EPSG:4937 EPSG:9451

Coordinate Reference Systems

Remarks

Parameter file taken from ETRS89 to Belfast height (2). Belfast is a member of the BI ensemble. For reversible alternative to this transformation see ETRS89 to ETRS89 + BI height (2) (code 9917).

Frequently Asked Questions

What is the accuracy of the ETRS89 to BI height transformation?

This transformation (EPSG:9916) has an accuracy of 0.014m using the Geographic3D to GravityRelatedHeight (OSGM15-Ire) method. Area of use: UK - Northern Ireland - onshore.