Acoustic water column data acquired in 2009 during the MARMESONET marine expedition led to establish an accurate spatial distribution of gas emissions on the scale of the Sea of Marmara. The present database is composed of a surface shape file (.shp) dedicated to GIS applications. This seafloor surface represents the insonified area within which gas emissions occurred for more than 1 month of survey, from 4 November 2009 to 14 December 2009; as displayed in Figure 4 of Dupré et al. 2015 (Dupré S, Scalabrin C, Grall C, Augustin AH, Henry P, Sengör AMC, Görür N, Çagatay N, Géli L (2015) Tectonic and sedimentary controls for widespread gas emissions in the Sea of Marmara. Results from systematic, shipborne multibeam echosounder water column imageries. Journal of Geophysical Research 120 (5):2891-2912. doi:10.1002/2014JB011617). This publication investigated and discussed the relationship between fluid emissions at the seafloor with the fault network (active and inactive faults) and the sedimentary environment (nature, thickness and related-processes).

Spatial distribution of all oxygen data in degrees integrated vertically and horizontally for all sub-regions of the English Channel, the North Sea, the Celtic Seas and the Bay of Biscay.

Reflectivity measurements of the multibeam echosounders of the French Research Vessels

Position théorique du trait de côte (pied de dune) estimée en 2020, sans les ouvrages (sauf ouvrages majeurs du Verdon, de l'Adour et de l'Artha à St-Jean-de-Luz), uniquement sur la côte sableuse. (métadonnée en cours)

Map of surficial sediments of the northern continental shelf of the Bay of Biscay at 1:500000 by Bouysse P. (coord.), Lesueur P. and Klingebiel A., 1986, conducted jointly by the BRGM and Ifremer.

Map of surficial sediments in the English Channel area known as "Larsonneur."

Sidescan sonar data of the French Research Vessels, archived at SISMER (IFREMER)

Localisation of marine geological and biological samples, stored in the biology and geology ocean database managed by IFREMER (BIGOOD, BIology and GeOlogy Ocean Database).

Raw underway marine magnetic data collected on board of the French civil Research vessels and archived at SISMER (IFREMER)

Geomorphological analysis of the continental slope of the Bay of Biscay based on a 100m Data Terrain Model (DTM). This DTM is a synthesis of data acquired during sea surveys ZEE 1, ZEE 2, Sedimanche, Sedifan 1, Sedifan 2, EssNaut 2009, EssReson08, ValidOp, BOBGeo 1, BOBGeo 2, EssInf.