Dr Mark Parrington, European Centre for Medium-range Weather Forecasts
Wildfires are a significant component of the Earth system, emitting large quantities of trace gases and aerosols into the atmosphere with potential impacts on atmospheric composition, radiation, climate, and surface air quality far from the emission source. High resolution (0.1 degree) estimates of daily global wildfire emissions are produced in near real-time by the Copernicus Atmosphere Monitoring Service (CAMS) using observations of fire radiative power from the MODIS instruments on the NASA Aqua and Terra satellites in the Global Fire Assimilation System (GFAS). The GFAS emissions are used as a surface boundary condition for operational 5-day forecasts of global atmospheric composition, produced twice daily at 0 UTC and 12 UTC with the ECMWF Integrated Forecasting System (IFS), at a resolution of approximately 0.4 degrees. In this talk I will present an overview of CAMS and GFAS and the unique perspective they provide on the transport and impact of atmospheric pollution associated with wildfire emissions. Two case studies will be presented to evaluate long-range transport of smoke from Canadian wildfires on European surface air quality and radiative impacts of smoke aerosols in the Arctic from high-latitude wildfires.