The World Meteorological Organization (WMO) Global Atmospheric Watch (GAW) Aerosol Lidar Observation Network (GALION) was formed in 2008. GALION is a network of lidar networks organized through the GAW program to coordinate activities and provide comprehensive global profiling of atmospheric aerosols and clouds. GALION chair and steering committee leadership is run by the heads of the individual lidar networks. Each GALION network is an official GAW contributing network (signed letter of agreement with WMO).

GAW Report No. 178: GALION Implementation Plan (2008)