Hydrographic survey data coverage WMS shows the quality of areas where depths have been mapped. The WMS differentiates between surveys that have been carried out by using single beam echo sounders and those by multibeam echo sounders.
The WMS shows the coverage for hydrographic survey data. It differentiates between surveys carried out using single beam echo sounders and those which used multibeam echo sounders. This service is unsuitable to be used for navigation.