Lisbon to ETRS89 (4)
EPSG:6188±0.1 mBest accuracy- Method:
- NTv2
- Area of use:
- Portugal - mainland - onshore
- Scope:
- Transformation of coordinates at 0.1m level of accuracy.
Grid file: DLx_ETRS89_geo.gsb
Derived from 1129 common stations in the national geodetic network. Residuals at 130 further test points average 0.09m, maximum 0.30m.