Dear Colleagues,
We are pleased to invite you to contribute to the upcoming *AGU Fall Meeting 2026*, which will take place *7–11 December 2026 in San Francisco, California*.
We are convening the session:
*“G014 - Recent Developments on Plate-Fixed Terrestrial Reference Frames: Determination, Applications, and Challenges”*
(Primary Section: *Geodesy*)
This session aims to provide a focused forum for the geodetic community to discuss *advances in plate-fixed reference frames*, their connection to *global frames such as ITRF2020*, and their growing importance and applications for accurate and stable representation of Earth surface processes.
*Scope and Motivation*
Plate-fixed reference frames play a critical role in enabling the detection and quantification of *intraplate and plate boundary deformation*, offering enhanced spatial stability for a wide range of applications. These include:
· Co- and post-seismic deformation analysis
· Glacier and cryosphere monitoring
· Natural and anthropogenic hazard assessment
· Engineering and infrastructure monitoring
· National and regional geodetic reference frame modernization
With increasing attention on *Intra-Frame Deformation Modelling (IFDM)* and evolving ties to the latest ITRF realizations, this session aims to bring together diverse expertise to address both *methodological developments and practical challenges*.
*Topics of Interest*
We especially encourage contributions on:
· Determination and realization of *national and regional plate-fixed reference frames*
· Integration and consistency with *ITRF2020 and future global frames*
· *Crustal deformation modelling*, including IFDM approaches
· Applications in geoscience, hazard monitoring, and engineering
· Challenges in accuracy, stability, and long-term sustainability of reference frames
*Why Contribute?*
This session is intended to serve as a *dedicated platform within AGU* for advancing discussion on plate-fixed frameworks bridging *theoretical developments, observational techniques, and real-world applications*. It will bring together researchers and practitioners from academia, national agencies, and international geodetic initiatives.
Your contribution would be highly valuable in helping to shape this evolving area and foster collaboration across the community.
*Submission Information*
Abstract submissions are now open via the AGU Fall Meeting portal:
👉 https://url.au.m.mimecastprotect.com/s/yUUBCoVzE9HD8NmwMt1fWfpBpm4?domain=ag...
*⏰** Abstract deadline:* *5 August 2026 23:59 EDT/03:59 +1 GMT*
*We Also Welcome...*
· Early-stage or ongoing research
· Contributions from emerging researchers and students
· Coordinated submissions from collaborative projects or programs
*🤝** Session Conveners*
· Dr. Mohammad Ali Goudarzi, Canadian Geodetic Survey, Natural Resources Canada
· Dr. Daniel Gillins, The U.S. National Geodetic Survey
We very much hope you will consider submitting an abstract and sharing your work in this session. Please feel free to share this invitation with colleagues and collaborators who may be interested. If you have any questions about the session, we would be happy to connect.
With best regards,
*Mohammad Ali Goudarzi, PhD (NRCan), andDaniel Gillins, PhD (The US NGS)*