Low-Earth and Geostationary Observations of BELgian Air Quality (LEGO-BEL-AQ) is a project funded by BELSPO under the BRAIN-be 2.0 programme.  Its objective is to exploit the full spatio-temporal resolving power of the LEO and GEO Copernicus Atmospheric Sentinel missions to support air quality policies in Belgium.

This includes the production of high spatial resolution maps of NO2 based on S5p-TROPOMI data over Belgium, and R&D on the complementarity and synergies within the (future) LEO+GEO constellation.

NEW: A peer-reviewed paper describing methododoly and first results is available at Elsevier's journal Atmospheric Environment:

Synergistic use of satellite and in-situ data for policy-relevant air quality information: A case study on Belgium

Please cite as: Tijl Verhoelst, Steven Compernolle, Jean-Christopher Lambert, Charlotte Vanpoucke, Frans Fierens, Synergistic use of satellite and in-situ data for policy-relevant air quality information: A case study on Belgium, Atmospheric Environment, Volume 361, 2025, https://doi.org/10.1016/j.atmosenv.2025.121447

City-specific results can be found here.

 

S5P-TROPOMI tropospheric NO2 column number density [Pmolec/cm2]

Grid resolution: 1.0 x 1.0 km2              Date: June-July-August 2021

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