IAG
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 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
Welcome to the New IAG Website
June 2, 2025/by adminLook Back at the IAG Geodesy Reception 2025
May 2, 2025/by adminIntroduction of the IAG Early Career Scientists group
March 5, 2025/by adminIAG Scientific Assembly 2025 – Announcement
December 16, 2024/by Martin SehnalNew Video: Discover the Importance of Terrestrial Reference Frames
June 19, 2024/by Martin SehnalEstablishment of an
IAG Secretariat at BEV
April 26, 2024/by Martin SehnalRecent Achievements and Future Perspectives in Geodesy – Scientific Colloquium
November 17, 2023/by Martin SehnalGeodesy: It’s about Time
October 16, 2023/by adminDon’t miss any News, Events or Jobs!
Subscribe to our Mailing Lists.
Become an IAG Member
and enjoy exclusive benefits!
IAG as part of the IUGG


IAG Related Organisations
IAG collaborates closely with numerous organizations within geodesy and beyond. See the list for details.
Sitemap
- Home | geodesy.science
- ⠀└─ 📰News
- ⠀└─ 📅 Events
- ⠀└─ 💼 Jobs
- ⠀└─ 👥 Membership
- ⭐ About Geodesy
- 🏛️ IAG | Int. Association of Geodesy
- ⠀└─ ➡️ Commissions:
- ⠀⠀◻️ 1️⃣ Reference Frames
- ⠀⠀◻️ 2️⃣ Gravity Field
- ⠀⠀◻️ 3️⃣ Earth Rotation & Geodynamics
- ⠀⠀◻️ 4️⃣ Positioning and Applikations
- ⠀└─ 🔀 Inter Commission Committees:
- ⠀⠀◻️ 📚 Theory
- ⠀⠀◻️🌊 Marine Research
- ⠀⠀◻️🌥️ Climate Research
- ⠀└─ ⏰ Project QuGe
- ⠀└─ ⚙️ IAG Services
- 🌎 GGOS | Observing System
Contact Us
Follow Us
References
This website is provided by the IAG Secretariat and the GGOS Coordinating Office, which are hosted by the BEV – Federal Office of Metrology and Surveying (Bundesamt für Eich- und Vermessungswesen) in Vienna, Austria.
Website Language Translation
The primary language of this website is English – however, the integrated GTranslate tool enables automatic translation into several languages:
Please note that translations into other languages may not be accurate. For reliable information, refer to the English version of the website.