The "Atmospheric Group" of IFAC develops instruments, observation methods, forward models and retrieval techniques for the measurement of geophysical parameters for the study of the Earth’s atmosphere.

The observations are made from high mountain sites, stratospheric balloons and aircrafts, and satellite using passive instrumentation operating at the different wavelengths (from the visible to radio). Fourier transform spectroscopy is a specific competence of the group.

Important projects performed in the past are: IBEX, SAFIRE, APEGAIA, in which the group had the leadership and ASSETT, AMIL2DA and ICT-ONE in which the group participated. On going projects are: MIPAS, MARSCHALS, REFIR, KLIMA, CTOTUS and GOSAT.