News and Activities
GGOS IberAtlantic (GGOS IA) functions as a regional node of GGOS, focusing on geodetic activities across the Iberian Peninsula and the Atlantic region. GGOS IA fosters collaboration among geodetic institutions while promoting scientific research and technological development tailored to the region’s unique geophysical characteristics.
Call for Abstracts – EGU26 Session G2.2 “New Technologies for GGOS”
GGOS, Other, 📅 Event UpdateThe 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 https://www.egu26.eu/.
This session focuses on advances and innovations in geodetic observing systems for monitoring the Earth’s geometry, gravity, and rotation. Topics include new methods such as relativistic geodesy, quantum sensors, next-generation lasers, LEO-based PNT, and other emerging technologies, as well as general GGOS developments and future observatory concepts.
Join us in shaping the next generation of geodetic observing systems within GGOS!
Author: Martin Sehnal (Director of GGOS Coordinating Office)
GGOS Days 2025 | Report
GGOS, 📅 Event UpdateThe GGOS Days 2025 were held on 3–5 September 2025 within the IAG2025 Scientific Assembly of the International Association of Geodesy (IAG) in Rimini, Italy, bringing together hundreds of scientists from 68 countries to discuss new developments and challenges in observing and understanding the Earth system.
GGOS Days 2025 – Presentation of EGVs
This year’s GGOS Days featured five dedicated symposia and a highlight session, showcasing the breadth of GGOS activities – from advancing the global geodetic infrastructure and defining Essential Geodetic Variables (EGVs) to fostering innovation in AI, space weather, and geohazard monitoring. The event also emphasized communication, education, and policy engagement, highlighting the societal relevance of geodesy and its contribution to sustainable development.
The GGOS Governing Board and GGOS Science Panel met in hybrid format to review progress on the GGOS Implementation Plan, discuss new outreach materials, and coordinate upcoming capacity-building initiatives.
Integrating GGOS Days into the IAG Scientific Assembly strengthened collaboration across IAG components and increased visibility of GGOS within the broader geodetic community. Looking ahead, GGOS Days 2026 will return to its traditional standalone format in Gävle, Sweden (5–7 October 2026), held jointly with the IAG Commission 3 Symposium (TIGER) and a GGOS Topical Meeting on Geohazards.
Author: Martin Sehnal (Director of GGOS Coordinating Office)
Past 4 GGOS presidents (GGOS GB Meeting 2025, Rimini, Italy)
TIGER Symposium in Geodesy 2026 | Save the date: Sept. 28 – Oct. 1
Com3, IAG, IERS, IGETS, IGFS, 📅 Event UpdateWe 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 deformation, and related fields, fostering collaboration across the many disciplines that study the Earth’s dynamic behaviour with geodetic methods and datasets.
The symposium will be limited to 150 participants and abstract submission and registration will begin early 2026. Reminders will be sent via mailing lists when abstract submission and registration open. More information about the workshop can be found at https://geodesy.science/com3/meetings/tiger-symposium-2026/. The website will be updated with additional information closer to the symposium, so be sure to check back for updates.
We’re looking forward to seeing you in September 2026!
Rebekka Steffen (on behalf of the scientific and local organizing committees)