This data set is a compilation of all known marine geophysical survey lines. From this index, you can get an overview on available geological knowledge for European seas together with contact information for further details.
Data are received from EMODnet members in many different formats (shapefile, geopackage, geodatabase, wfs) and merged into a postgresql table. Lines are simplified using the Douglas-Peucker algorithm.
The condition is only valid for the geophysical metadata shown on the EMODnet portal. The conditions for the real data held by the partners are probably different.