The Royal Decree of 20 March 2026 establishing a marine spatial plan defines Dredging_S1 Art. 15. § 1.1°, Dredging_S2 Art. 15. § 1.2°, Dredging_Bridges and Roads Ostend Art. 15. § 1.3°, Dredging_Bridges and Roads Zeebrugge East Art. 15. § 1.4°, Dredging_Bridges and Roads Zeebrugge West Art. 15. § 1.5°, Dredging_Bridges and Roads Nieuwpoort Art. 15. § 1.6°, Dredging_Erosion Pit Zeebrugge Art. 15. § 1.7°, Dredging_Future Replacement S1 Art. 15. § 4.1°, Dredging_Second Future Replacement S1 Art. 15. § 4.2°, Dredging_Second Possible Replacement Zeebrugge East and Zeebrugge West Art. 15. § 6, Dredging_Possible Replacement Zeebrugge East and Zeebrugge West Art. 15. § 6, Dredging_Third Possible Replacement Zeebrugge East and Zeebrugge West Art. 15. § 6, Dredging_Future Replacement Bridges and Roads Nieuwpoort Art. 15. § 8 Please refer to the Belgian official gazette ("Moniteur belge/Belgisch Staatsblad") for official reference information.

The national wastewater-based epidemiological surveillance of psychoactive substances monitors the presence of various psychoactive substances in several wastewater treatment plants across Belgium. This dataset contains the results per treatment plant since the beginning of the surveillance in 2025. The results consist of the psychoactive substances concentrations over time as well as other data needed for the interpretations such as the flow rates of the treatment plants and the population covered.

This dataset contains historical orthophoto mosaics based on available aerial photographs covering parts of the Belgian territory. Orthophotos are aerial photographs that have been geometrically corrected (orthorectified) to eliminate distortions caused by terrain relief, lens distortion, and camera tilt. Unlike raw aerial imagery, orthophotos have a uniform scale and accurate geometry, making them suitable for cartography, measurements, and visual analysis. This specific dataset includes historical orthophotos from 2010, 2011, 2012, 2013, 2014 and 2015, derived from aerial surveys carried out by the National Geographic Institute (NGI) and the Regions. During this period, both analogue and digital aerial photographs are available. The analogue images were scanned at high resolution and, like the digital ones, orthorectified. The resulting orthophotos were assembled into mosaics and georeferenced in the Lambert 2008 coordinate system. All orthophotos are in colour (RGB). The ground resolution (GSD) varies between 10 cm and 50 cm, depending on the sensor used and the surveyed area. The spatial coverage of this dataset is limited to the areas for which aerial photographs were available during the mentioned period. The data can be visualized via the corresponding web services (WMS/WMTS). The orthophotos and the original aerial photographs can be ordered in high resolution via https://shop.ngi.be/nl/luchtfotos/.

An hillshade is a homogeneous and regular points grid, indicating the grey tone deriving from their orientation relative to the chosen fictitious light source. The Hillshade DTM 1m is a representation of the hillshading of the DTM 1m.

The data consists in tables of estimated extreme precipitation quantities for precipitation durations ranging from 10 minutes to 30 days and return periods ranging from 2 to 200 years for each Belgian municipality.

The Royal Decree of 20 March 2026 establishing a marine spatial plan defines Measurement Poles Art. 25. § 2 Please refer to the Belgian official gazette ("Moniteur belge/Belgisch Staatsblad") for official reference information.

The Royal Decree of 22 May 2019 establishing a marine spatial plan defines 1 coastal protection experiments zone: Zone for coastal protection experiments (Art. 16§2). It replaces the 2014 Marine Spatial Plan, which is included for completeness. The Royal Decree of 20 March 2014 establishing a marine spatial plan defines in its Art. 12. §1 one zone for coastal protection experiments. This zone is made available digitally in the resource described by this metadata document. Please refer to the Belgian official gazette (\"Moniteur belge/Belgisch Staatsblad\") for official reference information.

The Royal Decree of 22 May 2019 establishing a marine spatial plan defines 6 energy, cable and pipeline zones: Area 1 for renewable energy (Eastern zone) (Art. 8§1), Area 2 for renewable energy (Noordhinder North) (Art. 8§2), Area 3 for renewable energy (Noordhinder Zuid) (Art. 8§3), Area for renewable energy - zone 4 (Fairybank) (Art. 8§3), Modular offshore grid for transmission of energy (Art. 8§5), Pipelines and cables corridor (Art. 9§1). It replaces the 2014 Marine Spatial Plan, which is included for completeness. The Royal Decree of 20 March 2014 establishing a marine spatial plan defines in its Art. 8., five energy, cables and pipelines zones: one zone for domain concessions to construct and exploit installations for the production of electricity from water, currents or wind (Area for renewable energy (initially wind farms), Art. 8. § 1), one zone for domain concessions to construct and exploit installations for the transport of electricity (Plug at sea, Art. 8. § 3), two zones for installations for energy storage (Energy atoll 1, Art. 8. § 5 zone 1 and Energy atoll 2, Art. 8. § 5 zone 2) and one zone to construct and exploit pipelines and cables (Pipelines and cables corridor, Art. 8. § 7). These zones are made available digitally in the resource described by this metadata document. Please refer to the Belgian official gazette (\"Moniteur belge/Belgisch Staatsblad\") for official reference information.

The areas not included in the settelement area considered to be categories of open space. However, open space should not be confused with green or undeveloped space. The settelement area also includes various forms of non-paved green space, such as gardens and parks or sports grounds and these are counted as developed area. These indicators show the total area of open space expressed in m² en de part of open area in relation to the total surface per administrative unit (region, province, district and municipality) for Flanders.

The data set contains a seamless polygonal layer representing the land cover in Belgium for the year 2006 and the year 2012. The polygons are spread over 32 classes from the CORINE Land Cover legend which are present un Belgium. The minimum map unit is 25 ha. The conceptual scale is 1:100 000. The data set also contains a polygon layer showing changes of more than 5 ha in the land cover between 2006 and 2012.