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  • Sedi_m16 is a 50*50m raster of the Dutch Wadden Sea representing the median grain size (m16) of particles >16 µm. The values are an interpolation of real measurements.

  • Ecotopes in the Dutch Marine Tidal Waters The shapefile wad_eunis4 represents an ecotope-classification of the Dutch Wadden Sea. The classification combines bathymetry and sediment and biotopes (e.g. saltmarshes ) and is based on EUNIS level 4.