Soil build-up lakes IJsselmeer area

Global description of the soil structure from 5 m -NAP. This soil description is based on more than 7,000 drillings carried out in the past deccenia. Per 1 m thickness, the drillings are translated into an area-covering grid (250 m x 250 m) using Voronoi interpolation and determine which soil type is most common per depth interval (e.g. 5-10 m -NAP). The differentiated in-depth intervals are shown in the table. Per depth interval the dominant soil type (sand, clay, peat, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, clay, peat, clay, clay, Where sieve values were known, the soil type of sand distinguishes between fine, medium coarse and coarse sand (for layers deeper than 15 m -NAP). Detailed information about soil construction can be requested from the RWS IJsselmeer Area Measurement and Information Service. The calculations were carried out by Bureau Explostat, Almere.