New IAG Publications | Geodesist’s Handbook 2024 & IAG Travaux 2023–2025

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The IAG has released two flagship open-access references: the Geodesist’s Handbook 2024 and the IAG Travaux Report 2023–2025. The Handbook presents IAG statutes, structure, officers, and planned scientific activities, while the Travaux documents scientific and organizational progress across all IAG components. Both volumes provide DOIs for the full work and for each chapter, supporting precise citation and strengthening the international visibility of IAG activities.

IERS | Relaunch of the Website www.iers.org

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We are pleased to announce that, as of November 10, the IERS website has been relaunched and is now available in its updated form at www.iers.org. The main focus of this update was the modernization of the layout. The structure and the overall navigation have not changed significantly, ensuring that information may still be accessed in the familiar manner. In the course of the relaunch, we also took the opportunity to review and, where appropriate, update the content. We invite you to explore the new website and welcome any feedback or suggestions you may have.

Call for Abstracts – EGU26 Session G2.2 “New Technologies for GGOS”

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The Global Geodetic Observing System (GGOS) invites contributions to Session G2.2 “New Technologies for the Global Geodetic Observing System (GGOS)” at the EGU General Assembly 2026 in Vienna. This session will highlight innovations and advances in geodetic observing systems for monitoring Earth’s geometry, gravity, and rotation. Topics include emerging technologies such as relativistic geodesy, quantum sensors, next-generation laser systems, LEO-based positioning, navigation and timing (PNT), and other forward-looking geodetic techniques. The session also welcomes contributions on general GGOS developments, new observatory concepts, and strategies to enhance the global geodetic infrastructure. Join us in shaping the future of geodesy and exploring how cutting-edge technology can strengthen GGOS’s role in observing and understanding our dynamic planet. Abstract Deadline: 15 January 2026, 13:00 CET

GGOS Days 2025 | Report

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The GGOS Days 2025 took place on 3–5 September within the IAG2025 Scientific Assembly in Rimini, Italy. The event featured five symposia and a highlight session on global geodetic infrastructure, standardization, regional collaboration, AI, space weather, and geohazards. Sessions on Geodesy for Society emphasized data management, policy engagement, and communication, highlighting geodesy’s role in sustainable development. The GGOS Governing Board and Science Panel met in hybrid format to review the implementation plan, update outreach materials, and coordinate capacity-building efforts. Read the full report for details.

TIGER Symposium in Geodesy 2026 | Save the date: Sept. 28 – Oct. 1

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We will be hosting the TIGER Symposium in Geodesy 2026 in Gävle, Sweden. The symposium is organized by the International Association of Geodesy (IAG) Commission 3 and will bring together scientists working on Earth rotation, geodynamics, crustal…
VLBI GNSS Onsala Sweden

The Visibility Challenge of Geodesy

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Geodesy quietly underpins our modern world - from GNSS navigation to climate monitoring and digital twins. The new article “The Visibility Challenge of Geodesy” in the GIM International Magazine (Issue 4 2025) explores the global infrastructure behind geodesy and highlights initiatives to make it more visible and accessible to surveyors, geomatics professionals, and the wider geospatial community.

Obituary of Bernard Chovitz

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Bernard Chovitz († April 25, 2025) was a pioneering geodesist and NOAA official. He advanced Geodesy from 2D to modern 3D/4D models, contributing to gravity field analysis, satellite data, and reference systems. His work, alongside geodetic giants, profoundly shaped the field. The International Association of Geodesy honors his legacy.

From Struve to Space: 11th Nordic Geodetic Commission Summer School held in Estonia 2025

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The Nordic Geodetic Commission’s 11th Summer School "From Struve to Space" gathered 61 participants from 13 countries in Tartu, Estonia (Aug 25–29, 2025). Hosted for the first time on the Baltic shore, the event blended history and innovation — exploring GNSS, machine learning, and geodesy’s future. A collegial, inspiring setting connected young researchers with Struve’s scientific legacy.
GGOS IberAtlantic School 2025

Highlights from 1st GGOS IberAtlantic Summer School

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The Yebes Observatory hosted GGOS IberAtlantic’s inaugural Summer School on space geodesy for early-career researchers from Spain and Portugal. Over five days, participants explored GNSS, VLBI, SLR, and gravimetry through theoretical and hands-on sessions, while cultural activities fostered collaboration. The event successfully strengthened geodetic skills, inspired scientific vocations, and built networks across the Ibero-Atlantic region.

IAG Honors Outstanding Contributions in Geodesy: Awardees of 2023 and 2024

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The International Association of Geodesy (IAG) has honored four outstanding scientists with its Young Author’s and Best Reviewer’s Awards for 2023 and 2024. The recipients are Dr. Safoora Zaminpardaz, Dr. Justyna Śliwińska-Bronowicz, Dr. Bailing Li, and Dr. Judit Benedek. These awards recognize excellence in scientific research and dedicated service to the geodetic community worldwide.