Thermal conductivity (Lambda) to solid rock or depth criterion

Map of the average thermal conductivity to the depth criterion or to the solid rock where it is shallower than the depth criterion, produced on the basis of literature insights and the geological model G3Dv3.1, in the context of the study 'Responsible expansion of shallow geothermal energy in Flanders' (2025) carried out by VITO and Terra Energy on behalf of the Environment Department.