The dataset contains points and polygons data of the Ports and ferry terminals in the Baltic Sea downloaded from, respectively, EMODnet and OSM, and HELCOM AIS. Attributes specification and units (points) ID: Code of the port composed of International Country Code (ISO 3166-1-Alpha-2 code elements) and 3 code elements of the name of the port or OpenStreetMap ID Country: the country where the port is located name: Name of the port, if available class: ferry terminal or harbour Attributes specification and units (polygons) LOCodes: Code of the port composed of International Country Code (ISO 3166-1-Alpha-2 code elements) and 3 code elements of the name of the port or OpenStreetMap ID Country: the country where the port is located port: Name of the port Links: Hyperlink to web pages, if available

The dataset represents urban land use (artificial surfaces) around the Baltic Sea coast. The dataset is constructed from CORINE Land Cover (CLC) 2018, Version 2020_20u1 (https://land.copernicus.eu/pan-european/corine-land-cover/clc2018?tab=metadata) for EU countries and from Open Street Map (OSM) open source data for Russia. Attribute specification and units: Code_18: Class applied for CLC 2018 ID:CLC 2018 ID or OpenStreetMap ID Code: Nomenclature of the class source: "Corine" or "OSM"