Welcome to International Union of Geodesy and Geophysics!

Mission and Structure

The International Union of Geodesy and Geophysics (IUGG) is the international organization dedicated to advancing, promoting, and communicating knowledge of the Earth system, its space environment, and the dynamical processes causing change.

Through its constituent Associations, Commissions, and services, IUGG convenes international assemblies and workshops, undertakes research, assembles observations, gains insights, coordinates activities, liaises with other scientific bodies, plays an advocacy role, contributes to education, and works to expand capabilities and participation worldwide.

Data, information, and knowledge gained are made openly available for the benefit of society – to provide the information necessary for the discovery and responsible use of natural resources, sustainable management of the environment, reducing the impact of natural hazards, and to satisfy our curiosity about the Earth’s natural environment and the consequences of human activities.

IUGG Associations and Union Commissions encourage scientific investigation of Earth science and especially interdisciplinary aspects. Each Association establishes working groups and commissions that can be accessed by using the links below or at the top of this page.

Associations

• International Association of Cryospheric Sciences (IACS)
• International Association of Geodesy (IAG)
• International Association of Geomagnetism and Aeronomy (IAGA)
• International Association of Hydrological Sciences (IAHS)
• International Association of Meteorology and Atmospheric Sciences (IAMAS)
• International Association for the Physical Sciences of the Oceans (IAPSO)
• International Association of Seismology and Physics of the Earth's Interior (IASPEI)
• International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI)

Union Commissions

• Commission on Geophysical Risk and Sustainability (GeoRisk)
• Commission on Mathematical Geophysics (CMG)
• Committee on the Study of Earth's Deep Interior (SEDI)

Membership

Countries in which "independent activity in geodesy and geophysics has been developed" may establish an Adhering Organization/Body and seek membership. For more information, visit How to Join or About IUGG.