G3Dv3 multiband grid

The existing separate grids for the DHMv2 (topography model) and for the geological units are brought together in one grid file with in the different bands the individual geological units and the height of their respective base in mTAW. Only the top of the ‘Top Siluria, Ordovician and/or Cambrian’ unit is shown in mTAW because the base was not modelled.