| Term | Main definition |
|---|---|
| CFOSAT | China France Ocean SATellite |
| CNES | Centre national d'études spatiales : the French national space agency |
| CNRM | Research institute shared between Météo-France and CNRS |
| CNRS | Centre national de la recherche scientifique : The French national research agency |
| CoMet | Carbon diOxide and METhane mission |
| CR2 | Hygrometer for measurement of absolute humidity bt spectroscopy. . |
| CSTA | Comité scientifique et technique aéronefs |
| Cugnaux | City of Cugnaux |
| DGRST | Direction Générale de la Recherche Scientifique et Technique (Scientific and technological research department, French Ministry of Defense) |
| DLR |
Deutsches Zentrum |
| DMN | Direction de la Météorologie nationale - ancestor of Météo-France, name also used in other francophone atates. |
| EERM | Etablissement d’Etudes et de Recherches Météorologiques, the research department of the French National met service before CNRM |
| ERC | European Research Council |
| ESA | European Space Agency |
| EUFAR | European fleet for airborne research : consortium européen d'avions de recherche - the european consortium for airborne research |