UK shelf and North Sea quantitative sediment composition predictions dataset https://portal.medin.org.uk/portal/start.php?tpc=009_CEFAS742b396b-e638-4501-8d43-9818510d13fd Spatial predictions of substrate composition for the UK shelf and North Sea. Compositional fractions of mud, sand and gravel were modelled for an area of the UK and North Sea using a statistical regression model. This dataset consists of percentage composition predictions for the mud, sand and gravel components as raster tifs. In addition the proportion of each of these sediment components were combined to predict the likely sediment classification as both a EUNIS habitat class and Folk class. These are also available as raster tif files with an associated ArcGIS layer file indicating the appropriate class for each raster value. A shape file of the Folk classification is also available. 20180131 20150401