MACC (Monitoring Atmospheric Composition and Climate) operates and improves data-analysis and modelling systems for a range of atmospheric constituents that are important for climate, air quality and surface solar radiation. Product lines include data records on atmospheric composition for recent years, data for monitoring present conditions and forecasts of the distribution of key constituents for a few days ahead.

MACC is funded under the 7^th Framework Programme of the European Community and provides the pre-operational atmospheric environmental service of GMES. This service complements the  weather analysis and forecasting services provided by European and national organisations by addressing the composition of the atmosphere.

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Global Forecasts	European Air Quality Forecasts	UV index forecasts	GEMS Reanalysis