Calendar of Events

The Commission 1 “Reference Frames” of the International Association of Geodesy (IAG), the IAG Global Geodetic Observing System (GGOS) and the International Earth Rotation and Reference Systems Service (IERS) are pleased to announce the:

• IAG International Symposium on Reference Frames for Applications in Geosciences (REFAG2026) to be held on 2-4 March 2026, followed by the

• GGOS/IERS Unified Analysis Workshop (UAW2026) on 5-6 March 2026,

with both events taking place at the same venue, Munich (Germany). All IAG members and associates, as well as professionals and individuals interested in the theory and application of reference frames in geodesy, Earth sciences and astrometry, are invited to attend the REFAG2026 conference. Participation in the UAW2026 is by invitation only. More detailed information will be provided in the upcoming announcements on this website.

Important dates:

• 1 June 2025 – 1st Announcement (website launch, session description, call for abstracts)
• 1 August 2025 – 2nd Announcement (second call for abstracts, details of registration fees)
• 15 November 2025 – 3rd Announcement (session schedule finalised)

• 15 October 2025 – Abstract submission deadline
• 15 November 2025 – Notification of acceptance
• 15 December 2025 – Early Bird registration deadline
  

• 31 January 2026 – Final scientific programmes for REFAG2026 and UAW2026
• 31 May 2026 – Deadline for submission of papers to the IAG Symposia Series by Springer

We look forward to seeing you in Munich in March 2026 at the REFAG2026 and UAW2026!

Organized by:

Urs Hugentobler (President of IAG Commission 1)

Laura Sánchez (President of GGOS)

Robert Heinkelmann (IERS Analysis Coordinator)

Mathis Bloßfeld (LOC chair) and  Stefanie Daurer (LOC co-chair)