This is the account of GGOS, the Global Geodetic Observing System of the IAG. For Updates please follow @iag_geodesy
Earth Science
Joined September 2016
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🌍 Summer School: Satellite-Based Hydrological Data Assimilation
📌 Registration is open for the Summer School of "SATELLITE-BASED HYDROLOGICAL DATA ASSIMILATION", August 25-28, 2026, which will be hosted by the Geodesy Research Group of Aalborg University, Denmark.
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🌍 New Website: Discover the Importance of VLBI for Geodesy and Society
📌 How can we measure the Earth with millimetre precision? How can radio telescopes observing extragalactic black holes help us monitor sea-level rise and tectonic plate motion? These questions and more ...
📣 New IAG News Hub | All IAG & component news now centrally available.
Stay updated via:
📧 mailing lists
📡 RSS,
🌐 Social Media
📄 Redesigned monthly PDF Newsletter
👉 Read more: geodesy.science/2026/iag-new…
@iag_geodesy @theIUGG #Geodesy #GeodesyScience #EarthScience
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📢 Meet Alfonso Caldiero | Early Career Scientist
Alfonso Caldiero, a Italy researcher:
Alonso is from near Naples. He ...
👉 more at: geodesy.science/2026/meet-al…
@IAG_GGOS @theIUGG #Geodesy #GeodesyScience #EarthScience
📢 Last call to get creative! 🎨
🗓️ Deadline: March 22, 2026 – 1 month left to join the #Geodesy #Cartoon #Competition! Win up to 900 € 🏆
💡 Can’t draw? Team up or use AI tools — just make #geodesy fun & visible!
👉 geodesy.science/cartoon/comp…
🌍 TIGER Symposium in Geodesy 2026 - Abstract submission and registration open
📌 Abstract submission for the TIGER Symposium in Geodesy 2026 is now open. The symposium will take place from September 28 to October 1, 2026, in Gävle, Sweden, and online. Abstracts and applicat...
GGOS - Global Geodetic Observing System retweeted
📢 The New IAG Membership Portal
We are pleased to announce the launch of the new IAG Membership Portal...
👉 more at: geodesy.science/2026/the-new…
@IAG_GGOS @theIUGG #Geodesy #GeodesyScience #EarthScience
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📢 Women in scientific organizations
An event to mark the International Day of Women and Girls in Science o...
👉 more at: geodesy.science/event/women-…
@IAG_GGOS @theIUGG #Geodesy #GeodesyScience #EarthScience
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📢 Research Scientist / Engineer (m/f/d) – Gravimetry
Open Position: Research Scientist/Engineer – Gravimetry at BEV Vienna....
👉 more at: geodesy.science/job/research…
@IAG_GGOS @theIUGG #Geodesy #GeodesyScience #EarthScience
📢 Webinar - AI For GNSS Remote Sensing
This online meeting of the IAG GGOS Joint Study Group on AI for GNSS R...
👉 more at: geodesy.science/event/webina…
@iag_geodesy @theIUGG #Geodesy #GeodesyScience #EarthScience
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📢 Spotlight on Young Researchers - ECSNet Video Series
As part of its activities, the IUGG Early Career Scientist Network (EC...
👉 more at: geodesy.science/2025/ecsnet-…
@IAG_GGOS @theIUGG #Geodesy #GeodesyScience #EarthScience
🎄 Turn your Christmas creativity into a 🌍 #Geodesy #Cartoon!
Use the quiet holidays to make geodesy fun & inspiring.
🎨 Join the competition
💡 Win up to 900 € + visibility
👉 geodesy.science/cartoon/comp…
#ScienceCommunication #ArtAndScience #GGOS #IAG #Creativity
📢 New IAG Publications | Geodesist’s Handbook 2024 & IAG Travaux 2023–2025
The International Association of Geodesy (IAG) has released two key re...
👉 more at: geodesy.science/2025/new-iag…
@iag_geodesy @theIUGG #Geodesy #GeodesyScience #EarthScience
🌍 Call for Abstracts – #EGU26 Session G2.2
Share your work on New Technologies for GGOS — from quantum sensors to LEO-based PNT & next-gen lasers.
📅 Deadline: 15 Jan 2026, 13:00 CET
🔗 Submit here: meetingorganizer.copernicus.…
📢 GGOS Days 2025 | Report
The GGOS Days 2025 were held on 3–5 September 2025 within the IAG2025...
👉 more at: geodesy.science/2025/ggos-da…
@iag_geodesy @theIUGG #Geodesy #GeodesyScience #EarthScience
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🌎📡 ¡San Juan será sede de dos importantes eventos internacionales sobre Geodesia!
📅 Del 27 de octubre al 1 de noviembre de 2025
📍 Facultad de Ingeniería - Universidad Nacional de San Juan
@iag_geodesy @IPGH_PAIGH @theIUGG @UNGGIMAmericas @unggce @IAG_GGOS
GGOS - Global Geodetic Observing System retweeted
📢 VieVS Days 2026
The two-day workshop will cover the basics of analysing VLBI geodetic ... ... 👉 more at: geodesy.science/event/vievs-…
@IAG_GGOS @theIUGG #Geodesy #GeodesyScience #EarthScience
geodesy.science/event/vievs-…
GGOS - Global Geodetic Observing System retweeted
📢 TIGER Symposium in Geodesy 2026 | Save the date: Sept. 28 - Oct. 1
We will be hosting the TIGER Symposium in Geodesy 2026 in Gävle, Swede...
👉 more at: geodesy.science/2025/tiger-s…
@IAG_GGOS @theIUGG #Geodesy #GeodesyScience #EarthScience
🚨 Deadline Extended! #REFAG2026 abstracts now due 2 Nov 2025 🗓️Join this landmark event in Munich 🌍✨ where global experts shape the future of reference frames.👉 Submit now: geodesy.science/events/munic…
📢 The Visibility Challenge of Geodesy
Geodesy is the invisible foundation of our modern world. It enables ac... ... 👉 more at: geodesy.science/2025/visibil…
@iag_geodesy @theIUGG #Geodesy #Intergeo #Intergeo2025
geodesy.science/2025/visibil…
