Welcome to GGOS

Welcome to the Global Geodetic Observing System (GGOS) of the International Association of Geodesy (IAG). Here you can learn more about what is GGOS, why it was established, the dual roles of GGOS, the vision and mission of GGOS, the history of GGOS and the organizational structure of GGOS.

GGOS Film - Discover GGOS and Geodesy