One of the most mature uses of Earth observation data is in weather prediction. For several decades now, near-real time meteorological satellite images have been at the heart of our daily weather bulletins.
Numerous atmospheric chemistry instruments and various techniques are also used to measure the composition of Earth's atmosphere.
These data are used in a wide range of applications, such as operational meteorology, volcanic eruption monitoring, air quality forecasts, for climate studies and to support policy making.
Copernicus Contributing Missions carrying atmospheric instruments complement the Sentinel-4 and Sentinel-5 missions.