From multiple observations during the day with UV spectrophotometers a daily value of the ozone column is calculated. This product is not publically available yet.

The Royal Decree of 20 March 2026 establishing a marine spatial plan defines CIA Zone Art. 27. § 1 Please refer to the Belgian official gazette ("Moniteur belge/Belgisch Staatsblad") for official reference information.

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 5m is a representation of the hillshading of the DTM 5m.

The Royal Decree of 20 March 2026 establishing a marine spatial plan defines Oostdyck Radar Tower Art. 25. § 3 Please refer to the Belgian official gazette ("Moniteur belge/Belgisch Staatsblad") for official reference information.

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 DSM 1m is a representation of the hillshading of the DSM 1m.

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 DSM 1m, digital surface model at 1m-resolution, is a homogeneous and regular point grid indicating the height of the Earth’s surface level in order to model its landscape, also including objects on the surface such as vegetation and buildings. The DSM 1m is achieved by interpolating in Lambert 2008 source data in Lambert 72 and at a 1m-resolution from the Flemish (2013-2015) and Brussels (2021) Regions, and by adding Lambert 2008 data at 1m-resolution from the Walloon Region (2021-2022).

The data set includes three types of breakdown: Cities, Larger Urban zones or Functional Urban areas. BE_StatisticsBelgium_SH_SU_UA_CITY presents in the form of polygons the borders of the Belgian cities participating to the Urban Audit of the European Commission. Some cities consist in only one municipality (LAU2) while the others are the result of the aggregation of several municipalities (LAU2). Several versions of the breakdown (2001, 2002, 2010, 2019) follow one another because over the years new cities have taken part in it. The files can be linked to the statistical data collected for the Urban Audit. BE_StatisticsBelgium_SH_SU_UA_LUZ and BE_StatisticsBelgium_SH_SU_UA_FUA present in the form of polygons the areas of influence of the Urban Audit cities on the surrounding municipalities. The initial concept of Larger Urban Zones (LUZ) was replaced by the concept of Functional Urban areas (FUA) to take into account the movement of workers to the Urban Audit cities. LUZ / FUA are an aggregation of municipalities (LAU2). Several versions of the breakdown (2001, 2002, 2010, 2019) follow one another because over the years new LUZ / FUA have appeared or have seen their extension modified. The files can be linked to the statistical data collected for the Urban Audit.

RMI operates a network of 17 automatic weather stations in Belgium. These weather stations report meteorological paramaters such as air pressure, temperature, relative humidity, precipitation (quantity,duration), wind (speed, gust, direction), sunshine duration, shortwave solar radiation and infrared radiation every 10 minutes. Daily AWS data are computed from the 10-min observations.

The Royal Decree of 20 March 2026 establishing a marine spatial plan defines Shipping Routes_IMO Art. 14. § 2, Shipping_IMO Zones Art. 14. § 2, Separation Systems Art. 14. § 2, Other Routes and Currents KB Art. 14. § 2, Other Routes and Currents Non-KB Art. 14. § 2, Separation Line At Westhinder Art. 14. § 2.4°, Area to Avoid Art. 14. § 2.6°, Anchorage Area Oostdyck Art. 14. § 3.1°, Anchorage Area At Westhinder Art. 14. § 3.2°, Maritime Safety Research Zones - zone 1 Art. 14. § 5.1°, Maritime Safety Research Zones - zone 2 Art. 14. § 5.2°, Maritime Safety Research Zones - zone 3 Art. 14. § 5.3° Please refer to the Belgian official gazette ("Moniteur belge/Belgisch Staatsblad") for official reference information.