Linked Open Data for the maritime domain

Linked Data in this data set have been compiled from diverse data sources providing information about Trade and Transport locations, protected areas, surveillance data of vessels and vessel characteristics. Data have been transformed into triples according to the vesselAI ontology, using RDF-Gen . All geometries are provided using OGC terms. The vesselAI ontology documentation is available here . In a nutshell, this data set comprises data from the following sources: 1. AIS messages of moving objects retrieved from Norwegian Coastal Administration's SafeSeaNet solution, combined with data provided by the Danish Maritime Authority. Each record contains the coordinates of the vessel, a timestamp, an identifier for the vessel, its speed and heading. Typically, each vessel reports this information by sending an AIS message every few seconds. Each reported position is also annotated with the corresponding weather conditions according to Copernicus Climate Change Service (C3S) (files: reconstructed_traj.7z, ais202101_part1.7z, ais202101_part2.7z) . The weather variables currently considered as relative to the movement of vessels are: '10m_u_component_of_wind', '10m_v_component_of_wind', '2m_dewpoint_temperature', '2m_temperature', 'mean_sea_level_pressure', 'mean_wave_direction', 'mean_wave_period', 'precipitation_type', 'sea_surface_temperature', 'total_precipitation' 2. Vessel characteristics retrieved from online sources, combined with information about departure and destination seaports. United Nations Code for Trade and Transport Locations (UN/LOCODE), has been also used, to annotate the seaports with their longitude, latitude and Well Known Text (WKT) information, as well as features and facilities available according to online sources (files: vesselsCharacteristics.7z, worldPorts.7z ). 3. Regions of interest in the maritime domain include fishing areas, endangered species habitat areas, exclusive economic zones (EEZ), Natura2000 protected areas. In this snapshot we provide Natura2000 regions (file: natura2000.7z). Updates and additional data sets can be found here . The surveillance and weather data in this data set, are for January 2021 and within the region defined by the degrees: #west: 2.53 #south: 51.50 #north: 60.50 #east: 17.5