This session invites contributions focused on the theory, development, and application of gravity field models and geodetic reference frames. Potential topics include the realization and refinement of global and regional terrestrial reference frames (e.g., ITRF, IHRF, NATRF, NAPGD/CGVD), advances in gravity field modeling using terrestrial, airborne, and satellite data, and the integration of novel technologies such as quantum gravimetry and MEMS-based sensors. We encourage submissions addressing static and time-variable gravity field determination, geoid modeling, and reference frame stability, accuracy, and monitoring. This session aims to foster interdisciplinary dialogue and showcase the role of gravity and reference systems in supporting geospatial infrastructure, scientific research, and societal needs.

• 10:30 am – 11:00 am | The North American Terrestrial Reference Frame of 2022 –  An Opportunity to Unify Canadian Positioning – Jason Bond
• 11:00 am – 11:15 am | Progress Toward Canada’s First Portable Quantum Gravimeter – Brynle Barrett
• 11:15 am – 11:30 am | Development of a Field-Deployable Laser System for Canada’s First Portable Quantum Gravimeter – Owen Doty
• 11:30 am – 11:45 am | Tides from Geodesy, Elsewhere – Pierre-Michel Rouleau
• 11:45 am – 12:00 pm | Assessment of land and marine gravity data gaps in Canada – Dinithi Edirisinghe