In 1952 the Comité Speciale de l'Année Géophysique Internationale (CSAGI), a special committee of the ICSU, was established to coordinate the International Geophysical Year (IGY) under president Sydney Chapman, a British geophysicist.
In 1952 the Comité Speciale de l'Année Géophysique Internationale (CSAGI) a special committee of the ICSU was established to coordinate the International Geophysical Year (IGY) under president Sydney Chapman a British geophysicist