The OSGB36 TRF is a Terrestrial Reference Frame that realises the OSGB36 datum by a network of control points with known OSGB36 coordinates and ellipsoid heights, established by triangulation and levelling surveys.
The OSGB36 TRF is a Terrestrial Reference Frame that realises the OSGB36 datum by a network of control points with known OSGB36 coordinates and ellipsoid heights, established by triangulation and levelling surveys.