Ponente
Descripción
The Copernicus Atmosphere Monitoring Service (CAMS) is implemented by ECMWF on behalf of the European Commission to provide operational analyses and 5-day forecasts of global atmospheric composition, including reactive gases, aerosols and greenhouse gases. For this, CAMS assimilates near-real-time satellite observations of key atmospheric constituents into the IFS and also operates an ensemble of regional air quality models over Europe to provide 4-day, daily forecasts of the main atmospheric pollutants at 10 km resolution. In addition to the operational products, CAMS has also produced a global reanalysis, currently available from 2003-2020, to provide spatially and temporally consistent 3-D fields of atmospheric composition. This talk gives some background about the satellite retrievals of atmospheric composition that are used in the CAMS system, with focus on the global system. The talk will present examples of the limitations of some of the used data sets, focussing on ozone, carbon monoxide and aerosol optical depth, as well as the benefits obtained when combining the information from different instruments in an assimilation system.
