IAG
International Association of Geodesy
Fostering international geodesy collaboration and innovation
The International Association of Geodesy (IAG) – as a part of the International Union of Geodesy and Geophysics (IUGG) – is a global scientific organization promoting geodesy research and cooperation. Established in 1862, it has evolved from a regional initiative to an international association, emphasizing collaboration in solving geodetic challenges. The IAG’s mission is to advance geodesy through research, data analysis, technological development, and providing accurate representations of Earth and planetary systems. The IAG consists of a variety of organisational components, including scientific, technical, governance, and administrative divisions.
The IAG Commissions address fundamental research in the main areas of geodesy: Reference Frames, Gravity Field, Earth Rotation and Geodynamics, and Positioning and Applications.
The Inter-Commission Committees (ICCs) facilitate synergy between the IAG Commissions by addressing interdisciplinary geodetic research topics and cross-cutting scientific challenges.
The Global Geodetic Observing System (GGOS) serves as an integrating framework for all IAG components (Services, Commissions, Inter-Commission Committees and Projects) and acts as a hub for geodetic expertise and information, bridging the gap between science and society.
The IAG services facilitate the global co-ordination of activities to collect and analyse geodetic data to the highest standards and to provide geodetic reference frames and other products relevant to geodesists, researchers in other Earth sciences, national administrations and society in general.
IAG Projects are flagship long-term projects of broad scope and of significant interest for the entire field of geodesy.
IAG Latest News
Open Call for Early Career Researchers – EPOS-GNSS TCS Participation in EPOS Days 2026
November 24, 2025/by adminNew IAG Publications | Geodesist’s Handbook 2024 & IAG Travaux 2023–2025
November 20, 2025/by Martin SehnalTIGER Symposium in Geodesy 2026 | Save the date: Sept. 28 – Oct. 1
October 23, 2025/by adminThe Visibility Challenge of Geodesy
October 7, 2025/by adminObituary of Bernard Chovitz
October 2, 2025/by adminFrom Struve to Space: 11th Nordic Geodetic Commission Summer School held in Estonia 2025
September 19, 2025/by adminIAG Honors Outstanding Contributions in Geodesy: Awardees of 2023 and 2024
September 12, 2025/by adminGeodesy Cartoon Competition
August 30, 2025/by adminDon’t miss any News, Events or Jobs!
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