International Union of Geodesy and Geophysics (IUGG)

THE INTERNATIONAL UNION of Geodesy and Geophysics (IUGG) was established in 1919 as a nongovernmental organization. Original members were Australia, Belgium, Canada, France, Japan, Portugal, the United Kingdom, and the United States. It is based at the University of Colorado in Boulder, Colorado, and is also known by its French name, Union Géodésique et Géophysique Internationale.

Geodesy and geophysics refer to the study of the sciences of the Earth and its position in space. Individual fields within these faculties include composition and tectonics of the Earth, dynamics of the Earth and its components, Earth shape, internal structure of the Earth, gravitational and magnetic fields, hydro-logical cycles of the Earth including ice and snow, magma generation, volcanism and rock formation, solar-terrestrial relations, and anything to do with ...