In-service Aircraft for a Global Observing System (IAGOS, http://www.iagos.org) aims at the provision oflong-term, frequent, regular, accurate, and spatially resolved in situ observations of the atmospheric composition.IAGOS observation systems are deployed on a fleet of commercial aircraft. The IAGOS database is an essentialpart of the global atmospheric monitoring network. Data access is handled by open access policy based on thesubmission of research requests which are reviewed by the PIs. Users can access the data through the followingweb sites: http://www.iagos.fr or http://www.pole-ether.fr as the IAGOS database is part of the French atmosphericchemistry data centre ETHER (CNES and CNRS)
