Data products

Carbon Monoxide


Carbon monoxide (CO) is an important atmospheric trace gas for our understanding of tropospheric chemistry. In certain urban areas, it is a major atmospheric pollutant. Main sources of CO are combustion of fossil fuels, biomass burning, and atmospheric oxidation of methane and other hydrocarbons. Whereas fossil fuel combustion is the main source of CO at Northern mid-latitudes, the oxidation of isoprenes and biomass burning play an important role in the tropics.TROPOMI observes the CO global abundance exploiting clear-sky and cloudy-sky Earth radiance measurements. In the 2.3 µm spectral range of the shortwave infrared (SWIR) part of the solar spectrum, TROPOMI clear sky observations provide CO total columns with sensitivity to the tropospheric boundary layer. For cloudy atmospheres, the column sensitivity changes according to the light path.

Data product version summary (click version number for latest Product Readme).
Version number Version Effective Date Summary of Changes
2.0.0 6-June-2018 to present NPP VIIRS cloud screening improved
1.0.0 20-Aug-2017 to 5-June-2018 First product release



The Algorithm Theoretical Basis Document (ATBD) can be found by clicking here. The Product User Manual (PUM) and Sample Data Files are being updated based on a new release of the processing software and will be available for download by mid-May 2017.

After launch, preliminary product results will be provided during the Commissioning Phase and the Operational Phase.