EGU Session G3.4

[Freymueller, Jeffrey]

The next General Assembly of EGU will be held next 03-08 May, in Vienna.

On behalf of lead convener Laura Jensen (GFZ Potsdam) and co-conveners Fabien Maussion (University of Bristol) and Bert Wouters (TU Delft), I’m excited to announce our session G3.4:

Bridging Cryospheric Change, Terrestrial Hydrology, and Geodesy

https://meetingorganizer.copernicus.org/EGU26/session/58108#

We aim to bring together researchers to explore the crucial links between ice mass changes, water resources, and land deformation. Interested in presenting your work? Abstract submission is now open until 15 January 2026! We are also thinking about trying to set up a short breakout meeting during the EGU, with an eye toward planning a future workshop.

Global mass transport processes are increasingly important to measure and understand, and mass variations may be changing with climate change. Both cryospheric change and terrestrial hydrologic processes are important, to different degrees in different climate zones. Global models for cryospheric and hydrologic processes are becoming more mature, but models usually are not yet unified: cryospheric change estimates may not specify where the water goes, and terrestrial hydrological models do not account for cryospheric changes well. The impacts of mass transport are readily measurable using geodesy (e.g., gravity change and Earth deformation), and variations in mass transport may now be a limiting error source on geodetic observables.

This session aims at bringing together researchers from the cryosphere, hydrosphere and geodetic community with the goal of improving geophysical models. We invite contributions incorporating global or regional cryospheric observations and models, as well as efforts that integrate cryospheric change with other terrestrial water storage models. Furthermore, we welcome comparisons of cryospheric or hydrologic models with geodetic observations and studies that aim to disentangle cryospheric and hydrologic signals. We also look for investigations that exploit mutual benefits of improving mass transport modeling and a better understanding of geodetic observables (e.g., implications on geodetic reference frame, and integrative measures like geocenter).

Jeff

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Dr. Jeffrey T. Freymueller

Endowed Chair for Geology of the Solid Earth

Department Chair

Dept. of Earth and Environmental Sciences

Michigan State University

URL:  https://msu.edu/~freymuel/