The pre-operational atmosphere service of GMES is currently provided through the FP7 project MACC, which is continuing and refining the provision of the main sets of data products provided by PROMOTE and GEMS, two projects funded by the European Space Agency and the European Commission respectively. MACC's product lines include data records on atmospheric composition for recent years, and current data for monitoring present conditions and forecasting the distribution of key constituents for a few days ahead. They address the following:
A more detailed description of the atmosphere monitoring services developed by MACC is available in the Service Portfolio produced by the project: The contribution of the cluster to MACC comprises: