Coordinate Reference Systems
Remarks
Replaces RAC09 model (ETRS89-FRA [RGF93 v2] to NGF-IGN78 height (2)), (code 8372)]. Accuracy at each grid node is given in the geoid model file. Bilinear interpolation used. For reversible alternative see ETRS89-FRA [RGF93 v2b] to ETRS89-FRA [RGF93 v2b] + NGF-IGN78 height (3) (code 10508).
Frequently Asked Questions
What is the accuracy of the ETRS89-FRA [RGF93 v2b] to NGF-IGN78 height transformation?
This transformation (EPSG:10506) has an accuracy of 0.02m using the Geographic3D to GravityRelatedHeight (IGN2009) method. Area of use: France - Corsica onshore.