ACTRIS RI: ACTRIS Research Infrastructure
AERONET: National Observatory for Aerosol
AEROSAT: International Satellite Aerosol Science Network
COPERNICUS: Europe’s eyes on Earth
EARLINET: a European Aerosol Research Lidar Network to Establish an Aerosol Climatology
ENVRIplus: Environmental and Earth System Research Infrastructures
EUFAR: European Facility for Airborne Research
EUMETSTAT: Global operational satellite agency in Europe
GALION: The Global Atmosphere Watch Aerosol Lidar Observation Network
GAW: Global Atmospheric Watch
GRUAN: GCOS Reference Upper-Air Network
IAGOS: Inserving Aircraft for a lobal Observing System
ICOS: Integrated Carbon Observation System
NDACC: Network for the Detection of Atmospheric Composition Change
SDS-WAS: WMO Sand and Dust Storm Warning Advisory and Assessment System