The European map of soil permeability displays the percentage of topsoil fine fraction (less than 63 micro m). It is possible to derive a rough estimation of the permeability very easily from the weight percentage of fine fraction.
Tollefsen, Tore; De Cort, Marc; Cinelli, Giorgia; Gruber, Valeria; Bossew, Peter (2026): 11. Soil permeability. European Commission, Joint Research Centre [Dataset] doi: 10.2905/JRC.J4YZ9PG PID: http://data.europa.eu/89h/jrc-eanr-11_soil-permeability
Europemappingnatural radiationpermeability
Soil permeability