Seabed sediments of Søre Sunnmøre, Norway

Sigrid Elvenes, Reidulv Bøe, Aave Lepland and Margaret Dolan

Journal of Maps, 2019, vol. 15, issue 2, 686-696

Abstract: An increasing number of activities compete for space in the Norwegian coastal zone, making access to detailed seabed information particularly valuable. We present a suite of thematic marine base maps of the near-shore areas of five municipalities in west Norway (567 km2; at 62°N/5°E). This set of full-coverage seabed maps includes sediment grain size, seabed terrain (shaded relief), slope, sediment accumulation basins, anchoring conditions, and diggability (trenching properties). The sediment grain size map is a geological interpretation of multibeam echosounder data supported by video observations and physical samples of seabed sediments. The other maps in the suite are derived from this sediment map, and/or directly from the bathymetry data. All maps are at a scale of 1:20,000 and are freely accessible for download or online viewing. Marine base maps are intended for all end-users with a need for knowledge of seabed conditions and may be especially valuable for marine spatial planning.

Date: 2019
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DOI: 10.1080/17445647.2019.1659865

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