This dataset includes assessment units in scale 4 for eutrophication. HELCOM Subbasins with coastal WFD water types of water bodies 2022 (Division of the Baltic Sea into 17 sub-basins and further division into coastal and off-shore areas and division of the coastal areas by WFD water types or water bodies) as defined in the http://www.helcom.fi/Documents/Action%20areas/Monitoring%20and%20assessment/Monitoring%20and%20assessment%20strategy/Monitoring%20and%20assessment%20strategy.pdf.

Baltic Sea coastline. The source is OpenStreetMap data downloaded from http://openstreetmapdata.com/data/coastlines and processed at HELCOM. This data contains all the detail available in OSM by 31 Jan 2018.

This dataset includes assessment units in scale 3. HELCOM Subbasins with coastal and offshore division 2022 (Division of the Baltic Sea into 17 sub-basins and further division into coastal and off-shore areas) as defined in the http://www.helcom.fi/Documents/Action%20areas/Monitoring%20and%20assessment/Monitoring%20and%20assessment%20strategy/Monitoring%20and%20assessment%20strategy.pdf. Subbasin divisioning is indicated as polygons in this dataset Coastal areas are aggregations of WFD water types reported by member countries.

This dataset includes assessment units in scale 4. HELCOM Subbasins with coastal WFD water types of water bodies 2022 (Division of the Baltic Sea into 17 sub-basins and further division into coastal and off-shore areas and division of the coastal areas by WFD water types or water bodies) as defined in the http://www.helcom.fi/Documents/Action%20areas/Monitoring%20and%20assessment/Monitoring%20and%20assessment%20strategy/Monitoring%20and%20assessment%20strategy.pdf.

Administrative boundaries of countries inside the Baltic Sea catchment area. The source is Open Street Maps data downloaded from OSM Boundaries Map (https://wambachers-osm.website/boundaries/)

The dataset contains the digitized Exclusive Economic Zone (EEZ) boundaries in the Baltic Sea based on the documents submitted by the Baltic Sea countries to the United Nations. These submissions, which are available online (http://www.un.org/depts/los/LEGISLATIONANDTREATIES/europe.htm), include nautical charts, maritime boundary delimitation agreements, and treaties between different countries (containing the agreed coordinates of the boundaries). In case of non-existing submission, the older EEZ version was used resulting from various HELCOM activities. The dataset has been amended with bilateral agreements, when available.