The bedrock elevation model is a complete model of the bedrock surface (or Quaternary base) in the Molasse Basin, the larger Alpine valleys (Rhine, Rhône, Aare, Reuss, Linth and Ticino) and portions of the Jura Mountains. This digital model has a 25-m grid spacing and shows the altitude in metres above sea level.
The thickness model of unconsolidated deposits is a digital data set that describes the thickness of the unconsolidated deposits. This product is derived from the bedrock elevation model. The subtraction of the bedrock surface from the terrain surface (digital height model, DHM25) gives the thickness of unconsolidated deposits.