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  • Single pockmarks defined using GIS analysis of detailed depth data. The density of pockmarks is particularly high in areas with soft mud bottom.

  • Areas with particularly frequent occurrence of pockmarks. The density of pockmarks is largest in areas with soft mud bottom.

  • Depth contours with 100m intervals, based on GEBCO 500m-grid. North-East Atlantic Ocean.

  • Terminal moraines (ice marginal deposits) in marin fjords and areas near the coast.

  • Large terminal moraines (ice marginal deposits) on Norwegian shelf.

  • Acoustic backscatter. Bottom reflectivity mapped with multibeam echosounder, 10 m grid. The strength of the acoustic signal reflected back from the seabed.

  • Glacial erosional escarpment

  • Shaded relief in grey scale: 100 m raster, 50 m raster, 10 m raster

  • Sediment waves on the sea floor. The data set is digitized on the basis of detailed bathymetry / shaded relief map.

  • Moraine ridges and small moraines in fjords and on Norwegian continental shelf, shown as lines.