Automated collection and transmission of aircraft observations began during the First GARP Global Experiment (FGGE) in 1978/79.
1981) that remained available after FGGE. More than 20 ASDAR-equipped aircraft provided reports during the next 20 years from eight air carriers around the globe.
Smidt, 1981: ASDAR: A FGGE real-time data collection system.
A reanalysis of observations collected for the First Global Experiment of the Global Atmospheric Research Programme (FGGE) started only months after the first operational forecast was issued in August 1979 (Bengtsson et al.
ECMWF's role in the FGGE project set in motion a strong feedback loop between improvements in the global observing system, advances in data assimilation methodology, and development of better forecast models through reanalysis.
--, --, --, and --, 1982b: FGGE four-dimensional data assimilation at ECMWF.