Monitoring atmospheric composition & climate
Emissions & Surface Fluxes


Knowing emissions and, more generally, surface fluxes are prerequisite for understanding the composition of the atmosphere. For instance, anthropogenic emissions of carbon monoxide, nitrogen oxides, and many other chemicals drive air pollution ; increasing concentrations of greenhouse gases in the atmosphere, like carbon dioxide and methane, are modulated by vegetation activity (the uptake of CO2 by photosynthesis and its release by plant respiration) or wetland activity (the release of methane by fermentation).

MACC-II compiles emission inventories that serve as input to the atmospheric chemistry-transport models. It also estimates net fluxes of CO2 and CH4 at the Earth's surface using satellite and in-situ observations. MACC-II estimates emissions of aerosols, chemical species, and greenhouse gases from wild fires on a daily basis. These are all used in the MACC-II models, but also serve users around the world.

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User cases

GOES_20120918_0530_small.pngMACC-II supports various scientific field campaigns by providing forecasts of atmospheric pollution that can be used for flight planning. The South AMerican Biomass Burning Analysis (SAMBBA) campaign, organised by the National Centre for Atmospheric Science in the UK, aimed to improve the ability to quantify and predict biomass burning and biogenic aerosol, their precursors and key processes, assess their influence on the radiative budget, and improve the knowledge of their influence on clouds through a major airborne study in Amazonia. The MACC-II Global Fire Assimilation System (GFAS) was used to support this campaign providing near-real-time information on the location and intensity of fires. Night-time Fire Radiative Power (FRP) observations from the  GOES-E satellite were used to identify large fires that had a high probability of burning on the following day during the campaign flight