Within the framework of WP3, the NEANIAS objectives are to develop and integrate at EOSC three innovative cross-cutting services for tackling operationally atmospheric-related studies and engineering tasks towards engaging several user communities linked to the atmosphere including: meteorologists, industrial air pollutant emitters, ecologists, rural urban planners and air quality authorities, geohazards, civil protection, insurance, health agencies. A variety of sensors deployed in satellites, aerial (manned or unmanned) and terrestrial platforms are currently operationally employed to monitor the atmosphere.