Data products

The objective of TROPOMI is to provide accurate and timely observations of key atmospheric species, for services on air quality, climate, and the ozone layer. The TROPOMI daily global observations are used for improving air quality forecasts as well as for monitoring the concentrations of atmospheric constituents. Trend monitoring is very important to verify the efficacy of policies implemented to reduce atmospheric emissions. In addition, TROPOMI contributes to services on volcanic ash for aviation safety, warnings for high levels of UV radiation that can cause skin damage, and to numerical weather prediction. Scientists will use S5P mission data to improve our knowledge of important chemical and dynamical processes in the atmosphere. This section includes detailed information for each data product from Level 1 radiances to Level 2 products like ozone, nitrogen dioxide, and clouds.

Air pollution, climate change, and depletion of the ozone layer are related because they are caused by changes in atmospheric composition. Sources and sinks, chemical conversion, and transport of gases and aerosols determine the composition of the atmosphere, as shown in the figure below.

Composition diagram showing the evolution/cycles of various elements in Earth's atmosphere. Source: Strategic Plan for the U.S. Climate Change Science Program.