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Lost Without Geodesy

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.
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First Geodesy Cartoon Released

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…
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New Horizon Europe Project “EQUIP-G” on terrestrial quantum gravimetry

June 1st was the start of the new Horizon Europe Project “EQUIP-G” Imaging the Earth's interior has always been one of the key challenges in geosciences as it is a prerequisite for understanding our planet's internal dynamics and the coupling…
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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…
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A new atomic clock in space could help us measure elevations on Earth

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.
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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…
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New RAEGE Station in Gran Canaria: A Milestone for Global Geodesy

The Spanish Ministry of Transport and Sustainable Mobility (MTMS) has officially begun the construction of the third RAEGE station on a site granted by the Cabildo of Gran Canaria to the National Geographic Institute (IGN) in March 2023.…
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International Geoid School in Kazakhstan

The 15th International School on “The Determination and Use of the Geoid” will be organized in Almaty, Kazakhstan between April 7-11, 2025 Information Location: Kazakhstan - Almaty Event date: 2025-04-07 - 2025-04-11 Event's site From…
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International Height Reference Frame IHRF – Coordination Centre

From the GGOS Focus Area Unified Height System to the IHRF Coordination Centre One initial objective of the Global Geodetic Observing System (GGOS) of the International Association of Geodesy (IAG) was the standardisation of height systems worldwide.…
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Symposium on Gravity, Geoid and Height Systems – GGHS2024

The GGHS2024 “Gravity, Geoid and Height Systems 2024” Symposium will be held in Thessaloniki, Greece, from 4 to 6 September 2024. It focuses on methods for observing, estimating and interpreting the Earth’s gravity field and the essential…