H3Dv2.1 A1020, isohypses of top Landenian and Heersiaan Aquitard

This layer gives the isohypses of the top of A1020, as defined in the Hydrogeological 3D model of the Flemish subsurface - version 2.1. 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.