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Africa Workshop

South African National Geodesy Workshop

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South Africa, with a rich geodetic history, faces fragmented efforts. A National Geodesy Workshop aims to unite stakeholders, enhance coordination, and align with the UN's GGRF agenda—establishing a National Geodesy Working Group to support national development and global collaboration in geodesy.
Funding Money coins

Call for IAG proposals – IUGG Support Program of Scientific Meetings in 2026

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The IUGG invites proposals for support of selected scientific meetings in 2026, including workshops, schools, and symposia. Submissions via IAG must be sent by 10 September 2025 to IAG-Office. Meetings should be scientifically relevant, internationally oriented, inclusive, and multi-disciplinary.

GGOS Days 2025 – Invitation

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Join us for GGOS Days 2025, held 1–5 September in Rimini, Italy, alongside the IAG2025 Scientific Assembly. Discover the latest GGOS achievements and challenges, connect with the community, and access contributions later in the GGOS Cloud.

Geodesy Virtual School 2025 – Summary

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The 2025 Geodesy Virtual School focused on reference frames and Earth system monitoring, held in five free online sessions coordinated from Argentina with support from SIRGAS, IAG, IUGG, and others. It featured 37 instructors and global participation, especially from the Americas. All lectures, in English or Spanish with subtitles, are available online, promoting inclusive, high-quality geodetic training worldwide.
Geodesy Cartoon

Lost Without Geodesy

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What happens if geodesy disappears? Phones, planes, and warning systems would fail. Our cartoon “Lost Without Geodesy” shows how vital this invisible science is. Geodesy powers GNSS, enabling precise positioning, earthquake monitoring, sea level studies, and more. Without it, GNSS would drift and global systems would collapse.
AGU american geophysical union© AGU

GGOS at #AGU25 – Call for Abstracts

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Join GGOS at #AGU25 (15–19 Dec 2025, New Orleans) for Session G004 on geodesy’s role in Earth system monitoring. Share your research on geodetic techniques, climate applications, reference frames, and more. Help shape global collaboration in geoscience! Submit your abstract by 30 July 2025.
REFAG UAW

Call for Abstracts: REFAG2026 – IAG Symposium on Reference Frames for Applications in Geosciences

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The REFAG2026 symposium on reference frames in geosciences will take place in Munich from 2–4 March 2026, followed by the GGOS/IERS UAW. Abstract submissions are open until 15 October 2025. Join us in shaping the future of geodetic reference frames!
Geodesy Cartoon

First Geodesy Cartoon Released

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We’re excited to share the first release in our new cartoon series about geodesy: The New Height of Qomolangma (Mt. Everest). This cartoon offers an engaging and educational look at the long-standing debate between China and Nepal over the…
IAG website

Welcome to the New IAG Website

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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…
ESA atomic clock satellite

A new atomic clock in space could help us measure elevations on Earth

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What if we could measure height differences on Earth to the centimeter from space? ESA’s ACES mission on the ISS links ultra-precise atomic clocks in orbit with those on Earth — enabling more accurate global elevation data. This could transform geodesy and help refine height reference systems worldwide.