The Copernicus Sentinel-4 mission, an ultraviolet, visible, near-infrared light spectrometer carried on the Meteosat Third Generation Sounder satellite in geostationary, provides hourly observations to monitor air quality over Europe. These hourly observations are set to make a breakthrough for air quality monitoring from space.

The animation shows how the mirror mechanism works to scan Earth’s atmosphere to provide critical data on the composition of the atmosphere at a spatial resolution of 8 km x 8 km.