The “World Seabed Sediment Map” product contains geo-referenced digital data, describing the nature of the sediment encountered in different seas and oceans of the world. The objects are all surface areas and the description of an object includes in particular the nature of the sediment including rock-type bottoms.

Les périmètres des quartiers prioritaires de la politique de la ville sont fixés par le décret n° 2014-1750 du 30 décembre 2014 pour la métropole et par le décret n° 2014-1751 du 30 décembre 2014 pour les départements et collectivités d’outre-mer, rectifiés par le décret n°2015-1138 du 14 septembre 2015.

The regional bathymetric Atlantic – Channel – North-Sea DTM has a resolution of 0.001° (~111m). Its geographic coverage includes the Bay of Biscay, the English Channel and a part of the North Sea. The DTM extends from the coast to the continental slope (about of 4800m deep). This DTM is produced in the framework of the HOMONIM project which aims at improving operational forecast capabilities for the national coastal flood warning system. This DTM is offered openly on the Shom diffusion website (http://diffusion.shom.fr/produits/bathymetrie/mnt-facade-atl-homonim.html). http://dx.doi.org/10.17183/MNT_ATL100m_HOMONIM_WGS84

Sea bed sediment maps for the 4 marine sub-regions prepared as part of the initial evaluation of the MSFD (Marine Strategy Framework Directive).

Composite DTM for the Baltic Sea at approx. 0.375 arc minutes resolution. The DTM was derived from the 50m grid provided by the Federal Maritime and Hydrographic Agency (BSH).

This marine geophysical and multibeam survey was undertaken by British Geological Survey on behalf of Marine Scotland utilising the Northern Lighthouse Board vessel NLV Polestar, it took place in July/August 2012 off south-west Tiree. The purpose was to further our understanding of Scotland’s marine environment, increase the efficiency of use of public resources, enhance the safety of those at sea and contribute to new policy priorities such as marine protected areas, wider conservation measures, marine planning and renewable. Bathymetric data was collected using a Kongsberg EM3002D dual head, multibeam system. Data was acquired using a Kongsberg SIS operating system, logging raw .ALL files. This data was processed offline by BGS using CARIS HIPS and SIPS 7.1 SP2.

Source data for the EMODNet DTM for the Belgium Continental Shelf (BCP) is compiled by the Vlaamse Hydrografie (http://www.afdelingkust.be/en/bathymetric-database) at a resolution of 1/64". The data set covers the Belgium Continental shelf area.

This BGS marine geophysical survey took place in July 2005 in the Summer Isles region aboard the RV Calanus. The survey was a part of the BGS Offshore Mapping and Modelling Project, North Atlantic Correlation. Subsurface data were gathered using a Surface Tow Boomer and a very detailed swath coverage of the Summer Islands region together with Loch Broom and Little Loch Broom was achieved using a Geoacoustics GeoSwath system supplied and operated by Fathoms Ltd.

This marine multibeam survey took place in August/September 2011 in the area of Lewis on board the Northern Lighthouse Board vessel NLV Pole Star. The survey was carried out by the British Geological Survey (BGS) on behalf of Marine Scotland. Sea floor bathymetry data were collected using a Kongsberg EM3002D multibeam system.

This marine geophysical and multibeam survey was undertaken by British Geological Survey on behalf of Marine Scotland utilising the Northern Lighthouse Board vessel NLV Polestar, it took place in July/August 2012 off south-west Tiree. The purpose was to further our understanding of Scotland’s marine environment, increase the efficiency of use of public resources, enhance the safety of those at sea and contribute to new policy priorities such as marine protected areas, wider conservation measures, marine planning and renewable. Bathymetric data was collected using a Kongsberg EM3002D dual head, multibeam system. Data was acquired using a Kongsberg SIS operating system, logging raw .ALL files. This data was processed offline by BGS using CARIS HIPS and SIPS 7.1 SP2.