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. The TROPOMI CO retrieval uses the same method employed by SCIAMACHY. The mean CO concentration spanning the years 2003-2012 as measured by SCIAMACHY is shown here.
|Version number||Version Effective Date||Summary of Changes|
|1.0.0||6 months post-launch to next update||Post-Phase E1 updates|
|0.11.8||21-Dec-2017 to present||Minor fixes and updates|
|0.11.4||launch to 20-Dec-2017||First product release|
USER DOCUMENTATION: ATBD, PUM, README, & SAMPLE DATA
The Algorithm Theoretical Basis Document (ATBD) can be found by clicking here and the Product User Manual (PUM) link is located on the right under Documentation. Sample data can be downloaded at the bottom of this page.
After launch, preliminary product results will be provided during the Commissioning Phase E1 and the Operational Phase. Product README (PRF) files will be created during Phase E1 in preparation for the Operational Phase.