H3Dv2 A1220, isohypses of top Triassic (excluding Sleen) and Permian

This layer gives the isohypses of the top of A1220, as defined in the Hydrogeological 3D model of the Flemish subsurface. The Hydrogeological 3D model was drawn up in the framework of the management agreement of the Flemish government with VITO, under the name VLAKO, on behalf of the Flemish Environment Agency.