The present dataset is based on a nine site study of fine seabed topography in intertidal zones. Four coral sites (Maupiti A, B and C and Niau islands) and five rocky sites (Ars en Ré, Socoa, Parlementia A and B and Banneg island) have been explored. The data has been gathered using on-foot GNSS RTK for all sites (Trimble R8/R8S and Leica sytems) except Banneg island, where aerial Lidar data from Litto3D program has been used. The horizontal resolution varies between 3.8 and 12cm allowing to describe a wide range of spatial scales (generally over 3 spectral decades). The data has been processed to explore the statistical and spectral metrics which can be used to characterize the architectural complexity of seabeds.

Bathymetric model (DTM) of the North-East Atlantic, generated from conventional multibeam bathymetry data, prior to the year 2000. The grid spacing is 1000 meters. Bibliographic reference : Sibuet J.C. & al., (2004) - Carte bathymétrique de l'Atlantique nord-est et du golfe de Gascogne : implications cinématiques. Bull. Soc. géol. Fr.T. 175, n°5, pp. 429-442

Map of surficial sediments of the northern continental shelf of the Bay of Biscay at 1:500000 by Philippe BOUYSSE, Patrick LESUEUR, André KLINGEBIEL et al., 1986, conducted jointly by the BRGM and Ifremer.

Bathymetric model (DTM) of the Mediterranean. MediMap group. Bathymetry data acquired by multibeam sounders during campaigns Almofront.leg1 and Almofront.leg2, Almofront, Bretane, Seamewe2, Heralis, Medee, Anaxiprobe, Almofront2 - leg1 and leg2, Prismed2, Marmara, Fanil, Tvic5 et 6, Progres, Maradja, Blac, Nautinil, Medor-Simed1 / 2 / 3 / 4 / 5, Maradja2, Sardinia, Prisme, Assemblage and Thertou. Integration of partner organizations DTM. This DTM is available at two cell sizes : 500 m and 1000 m.

The present dataset is based on a nine site study of fine seabed topography in intertidal zones. Four coral sites (Maupiti A, B and C and Niau islands) and five rocky sites (Ars en Ré, Socoa, Parlementia A and B and Banneg island) have been explored. The data has been gathered using on-foot GNSS RTK for all sites (Trimble R8/R8S and Leica sytems) except Banneg island, where aerial Lidar data from Litto3D program has been used. The horizontal resolution varies between 3.8 and 12cm allowing to describe a wide range of spatial scales (generally over 3 spectral decades). The data has been processed to explore the statistical and spectral metrics which can be used to characterize the architectural complexity of seabeds. Owners: - Topographic survey on Ars-en-Ré : profile X, Z in meter along a transec was operated on 10-15 Jan 2021 with On-foot Trimble R8/R8S GNSS RTK by Shom, Gladys and Univ. de Montpellier - Topographic survey on Maupiti Hoe: profile X, Z in meter along a transec was operated on 5-10 July 2018 with on-foot Trimble R8/R8S GNSS RTK by GLADYS and Université de Montpellier - Topographic survey on Niau : profile X, Z in meter along a transec operated on 10 Nov. 2021 with On-foot Trimble R8/R8S GNSS RTK - by CEREGE and MIO (OSU Pytheas) - Topographic survey on Parlementia A, and B : profile X, Z in meter along a transec was operated on 22 Fev 2023 with on-foot Leica GNSS RTK by SIAME, UPPA - Topographic survey on Socoa : profile X, Z in meter along a transec was operated on 21 Fev 2023 with on-foot Leica GNSS RTK by SIAME, UPPA and Shom - Topographic survey in high resolution of Banneg island (X, Y, Z) is made by aerial lidar litto3D on spring 2012/2013 by Shom and IGN

This bathymetric model is the result of compiling data and numerical models prior to 2008 in the Bay of Biscay. These datasets are available at a resolution of 500 m and 1000 m. Contours are also available for both digital terrain model (DTM). Public access granted under certain conditions.