Distribution of three bathymetric terrain variables (depth, slope and Bathymetric Position Index) on the North Atlantic (18°N to 76°N and 36°E to 98°W). This dataset originated from three source layers (3km * 3km resolution) computed within the work package 3 of EU ATLAS project, and based on the EMODnet Digital Bathymetry portal and the General Bathymetric Chart of the Oceans (GEBCO). From these source layers, the mean depth (m), slope (degree) and BPI (no unit) were calculated for each 25km * 25km gridsquare. This dataset was built to feed a basin-wide spatial conservation planning exercise, targeting the deep sea of the North Atlantic. The goal of this approach was to identify conservation priority areas for Vulnerable Marine Ecosystems (VMEs) and deep fish species, based on the distribution of species and habitats, human activities and current spatial management.

The GEBCO_2019 Grid is a global continuous terrain model for ocean and land with a spatial resolution of 15 arc seconds. The grid uses as a base Version 1 of the SRTM15_plus data set (Sandwell et al). This data set is a fusion of land topography with measured and estimated seafloor topography. It is largely based on version 11 of SRTM30_plus (5). Included on top of this base grid are gridded bathymetric data sets developed by the four Regional Centers of The Nippon Foundation-GEBCO Seabed 2030 Project, and from a number of international and national data repositories and regional mapping initiatives. The GEBCO_2019 Grid represents all data within the 2019 compilation. The compilation of the GEBCO_2019 Grid was carried out at the Seabed 2030 Global Center, hosted at the National Oceanography Centre, UK, with the aim of producing a seamless global terrain model. The majority of the compilation was done using the remove-restore procedure (Smith and Sandwell, 1997; Becker, Sandwell and Smith, 2009 and Hell and Jakobsson, 2011). This is a two stage process of computing the difference between the new data and the base grid and then gridding the difference and adding the difference back to the existing base grid. The aim is to achieve a smooth transition between the new and base data sets with the minimum of perturbation of the existing base data set. The data sets supplied in the form of complete grids (primarily areas north of 60N and south of 50S) were included using feather blending techniques from GlobalMapper software. The GEBCO_2019 Grid has been developed through the Nippon Foundation-GEBCO Seabed 2030 Project. This is a collaborative project between the Nippon Foundation of Japan and the General Bathymetric Chart of the Oceans (GEBCO). It aims to bring together all available bathymetric data to produce the definitive map of the world ocean floor by 2030 and make it available to all. Funded by the Nippon Foundation, the four Seabed 2030 Regional Centers include the Southern Ocean - hosted at the Alfred Wegener Institute, Germany; South and West Pacific Ocean - hosted at the National Institute of Water and Atmospheric Research, New Zealand; Atlantic and Indian Oceans - hosted at the Lamont Doherty Earth Observatory, Columbia University, USA; Arctic and North Pacific Oceans - hosted at Stockholm University, Sweden and the Center for Coastal and Ocean Mapping at the University of New Hampshire, USA).

The EMODnet Bathymetry World Base Layer (EBWB) service is a gridded representation of worldwide bathymetric and topographic coverage adapted for a better representation of seabed morphological features. Based on modern WMTS schema, it allows a fluid and powerful rendering. For the global oceans EBWB1 is composed of the 2018 EMODnet Bathymetric grid around Europe (approx. 100m resolution) and uses the GEBCO 2019 grid (approx. 500m resolution) elsewhere in the marine environment. Land coverage is based on a combination of 30 arc second ASTER GDEM, SRTM3, EU-DEM, and Global 1 second world-wide water body map for the topographic part. This compilation of publicly available data sources have been merged and pre-tiled for rendering, at 10 levels of zoom starting from 1/24th of an arcminute (approx. 75m resolution). The EBWB1 service is available in non-projected system (Lat, Long, WGS84: EPSG:4086), Web Mercator (EPSG:3857), Inspire compliant ETRS-EALA projection (EPSG:3035) and projections adapted to both poles (ESPG 3031 and 3996) Service URL: https://tiles.emodnet-bathymetry.eu/wmts/1.0.0/WMTSCapabilities.xml

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

This marine multibeam and sampling survey was undertaken on Stanton Banks by the Joint Nature Conservation Committee (JNCC), Centre for Environment, Fisheries & Aquaculture Science (CEFAS) and British Geological Survey (BGS) in July/August 2012 on board the Northern Lighthouse Board vessel NLV Polestar. The survey was led by the JNCC and included a team from CEFAS who were involved in benthic sampling. A combination of surveys methods were employed, including seabed imagery (drop camera), day grabs and rock dredges. BGS collected sea floor multibeam bathymetry data using a Kongsberg EM3002D multibeam system.

This British Geological Survey (BGS) marine geophysical and multibeam survey took place in June 2012 in the area of Ardmucknish Bay on board the RV White Ribbon. This was a follow up survey to the previous work carried out in this area (2011/4 and 2012/5). QICS (Quantifying and monitoring potential ecosystem impacts of geological carbon storage) was a scientific research project funded by NERC; its purpose was to improve the understanding of the sensitivities of the UK marine environment to a potential leak from a carbon capture storage (CCS) system. Sea floor bathymetry data were collected using a Kongsberg EM3002D multibeam system.

This British Geological Survey (BGS) marine geophysical and multibeam and survey took place in June/July 2012 in the area of Loch Broom and Gruinard Bay on board the RV White Ribbon. Sea floor bathymetry data were collected using a Kongsberg EM3002D multibeam system.

Multibeam bathymetry in Tangafjørður, Faroe Islands.

This marine multibeam and geophysical survey took place from 13-04-15 to 27-04-15 in the area of Sullom Voe, Shetland on board the RV White Ribbon. The survey was carried out by the British Geological Survey (BGS) on behalf of the BGS Marine team. Bathymetric data on MV White Ribbon was acquired using a Kongsberg EM3002D multibeam echosounder system. Kongsberg Seafloor Information System (SIS) version 3.9.2 (build 187) was used for online data logging. A Trimble SPS461 with Fugro Marinestar licence and a Kongsberg Seatex Seapath 200 provided vessel position, heading and attitude. Offline data processing was performed using CARIS HIPS version 8.1.5.

This marine multibeam survey took place from 15/06/2015 - 23/06/2015 in the area off Belhaven Beach near Dunbar, The Lothians, on board the RV White Ribbon. The survey was carried out by the British Geological Survey (BGS) on behalf of BGS. The aim of the project was to survey the near-shore region at Belhaven Bay to establish the extent of the sand shore face below low tide. The survey forms part of the Tyne Catchment Project, which aims to understand the dynamics of sediment sourcing, mobilisation, transport and deposition in the catchment of the East Lothian Tyne. Sea floor bathymetry data were collected using a Kongsberg EM3002D multibeam system.