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.

越来越多的活动争夺挪威沿海地区的空间，这使得获取详细的海底信息特别有价值。我们展示了挪威西部五个城市（567公里^2）的近海区域的主题海洋基础地图套件; 在62°N / 5°E）。这套全覆盖海床地图包括沉积物粒度，海床地形（阴影地形），坡度，沉积物沉积盆地，锚固条件和可挖性（沟槽性质）。沉积物粒度图是对多波束回波数据的地质解释，这些数据由视频观测和海底沉积物的物理样本支持。套件中的其他地图是从该沉积物地图和/或直接从测深数据中获得的。所有地图的比例均为1：20,000，可以免费下载或在线查看。海洋底图适用于需要了解海床状况的所有最终用户，并且对于海洋空间规划特别有用。