
Welcome to the New IAG Website
We are excited to announce the official launch of the new IAG website geodesy.science. This launch marks a major milestone for the IAG and reflects our ambition to make geodesy more visible, accessible, and connected — both within the scientific…

A new atomic clock in space could help us measure elevations on Earth
What if we could measure height differences on Earth with centimeter level accuracy from space?
A new article from MIT Technology Review explores how the European Space Agency’s ACES mission (Atomic Clock Ensemble in Space), now installed…

Virtual School of Geodesy – Reference Frames, Geodynamics, Atmosphere
Are you passionate about geodesy, climate change, and the global systems that help us understand our planet? Don’t miss this unique opportunity to dive deep into one of the most relevant scientific topics of our time! This international online…

EUREF Symposia 2025
We are pleased to announce that the EUREF Symposia 2025 is scheduled for Wednesday-Thursday June 25-26, with a full day Analysis Workshop on Tuesday June 24. The location is Covilhã, Portugal, and the venue will be the campus of the University…

New Video: Discover the Importance of Terrestrial Reference Frames
The Global Geodetic Observing System (GGOS) of the International Association of Geodesy (IAG) has released an enlightening 2 minute video showing the critical role of geodetic terrestrial reference frames in our world. This short film illustrates…

Call for Papers
IAG International Symposium on Reference Frames for Applications in Geosciences (REFAG 2022), Thessaloniki, Greece, October 17-20, 2022
Abstract Deadline: July 20, 2022!
Abstract Deadline: July 20, 2022!

1st Circular of the SIRGAS Symposium 2022
1st Circular of the SIRGAS Symposium 2022
The next SIRGAS Symposium will be held in the city of Santiago de Chile, November 7-9, 2022, thanks to the invitation offered by the Instituto Geográfico Militar (IGM) of Chile, in celebration of its…

REFAG 2022 – Symposium on Reference Frames for Applications in Geoscience
The REFAG 2022 carries on the tradition of previous IAG dedicated symposia on Reference Frames, aiming to bring together leading experts from academia, public authorities and private sector with young scientists and students, to discuss current achievements and future prospects of geodetic reference frames and their scientific and societal impact. Don't miss to participate in this great symposium.

REFAG 2022 – Call for papers
IAG International Symposium on Reference Frames for Applications in Geosciences (REFAG 2022), Thessaloniki, Greece, October 17-20, 2022