GGOS Update

Global Geodetic Observing System of IAG

Issue: December 2025

đź“° GGOS NEWS

Open Call for Early Career Researchers – EPOS-GNSS TCS Participation in EPOS Days 2026

The GNSS Data & Products Thematic Core Service (EPOS-GNSS TCS) will support the participation of two Early Career Researchers (ECRs) in the ECR session at EPOS Days 2026 (16–20 March 2026, Cagliari, Italy). Selected ECRs will give a flash presentation and a poster, with travel support provided according to EPOS rules. Eligible applicants must be PhD students or have obtained their PhD within the last 7 years, actively use EPOS-GNSS data or products, and be able to attend the event. Applications (single PDF) including abstract, motivation, and a recommendation letter must be submitted by 5 December 2025 to communication@epos-gnss.eu

Categories: ECS, GGOS, IAG, đź“° General News
IAG Early Career Scientists ECS Networking

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

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.

Categories: Com1, Com2, Com3, Com4, ECS, GGOS, IAG, ICCC, ICCM, ICCT, Project QuGe, Services, 🏛️ Organisation News
New IAG Publications | Geodesist’s Handbook 2024 & IAG Travaux 2023–2025

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

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

Categories: GGOS, Other, đź“… Event Update
Call for Abstracts – EGU26 Session G2.2 “New Technologies for GGOS”

GGOS Days 2025 | Report

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.

Categories: GGOS, đź“… Event Update
GGOS Days 2025 | Report
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🗓️ GGOS Event Calendar

Latest added Events related to GGOS:

    List of GGOS Events in next 12 months:

    DateEventAffiliation
    January 27, 2026Webinar – AI For GNSS Remote SensingGGOS
    March 2-6, 2026Munich 2026 | REFAG Symposium + Unified Analysis Workshop UAWCommission 1, GGOS, IAG Services, IERS
    April 7-9, 2026PhHS-IHRF2026 – Int. Symposium on Physical Height Systems and the IHRFCommission 2, GGOS, IGFS
    May 5, 2026IAG Geodesy Reception 2026ECS, EGU, GGOS, IAG
    June 1-5, 2026IGS Workshop 2026GGOS, IAG Services, IGS
    October 1-7, 2026GGOS Days 2026 + GGOS Topical Meeting on GeohazardsGGOS
    October 12-16, 2026Gravity Geoid and Height Systems Symposium (GGHS2026)Commission 2, GGOS, IGFS
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