Sedimentary environment describes processes that presently influence the seabed with respect to erosion, sediment transport and sediment deposition. The dataset series comprise two datasets: Sedimentary environment, detailed, and Sedimentary environment, regional. The two individual datasets are digitized in different scales and have different data coverage.

Seabed sediments (grain size) show the grain size composition in the upper part (upper 0-50 cm) of the seabed. The dataset series comprise three datasets: Seabed sediments (grain size), overview, Seabed sediments (grain size), regional and Seabed sediments (grain size), detailed. The three individual datasets are digitized in different scales and have different data coverage.

The dataset provides an overview of the dominant sedimentation environment in the mapped area. This is an interpretation of the processes that prevail on and near the seabed in terms of erosion, transport and deposition of sediments. Based on information about the sedimentatary environment, other thematic maps can be developed, such as bottom currents, sediment transport, pollution distribution, etc.

Modelled distribution of marine biotopes in Astafjord, Sør-Troms.

The dataset provides an overview of sedimentation rates in the upper ten centimetres of seabed sediments in the North Sea and Skagerrak. Results are quantitative and were estimated with spatial modelling methods. Uncertainties of the estimates are provided as well.