Coupling framework (1.0) for the Úa (2023b) ice sheet model and the FESOM-1.4 <i>z</i>-coordinate ocean model in an Antarctic domain

Richter, Ole; Timmermann, Ralph; Gudmundsson, G. Hilmar; De Rydt, Jan

doi:https://doi.org/10.5194/gmd-18-2945-2025

Articles | Volume 18, issue 10

https://doi.org/10.5194/gmd-18-2945-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-18-2945-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 10

Model description paper

|

19 May 2025

Model description paper |

| 19 May 2025

Coupling framework (1.0) for the Úa (2023b) ice sheet model and the FESOM-1.4 z-coordinate ocean model in an Antarctic domain

Ole Richter, Ralph Timmermann, G. Hilmar Gudmundsson, and Jan De Rydt

Data sets

Úa-FESOM Predicted Present Day Ice Shelf Basal Melt Rates and Ice Sheet/Ice Shelf Thickness Trends O. Richter et al. https://doi.org/10.5281/ZENODO.14918327

UaSource GHilmarG https://github.com/GHilmarG/UaSource

Model code and software

Coupling framework for the Úa ice sheet model and the FESOM-1.4 z-coordinate ocean model O. Richter et al. https://doi.org/10.5281/zenodo.14866110

Short summary

The new coupled ice sheet–ocean model addresses challenges related to horizontal resolution through advanced mesh flexibility, enabled by the use of unstructured grids. We describe the new model, verify its functioning in an idealised setting and demonstrate its advantages in a global-ocean–Antarctic ice sheet domain. The results of this study comprise an important step towards improving predictions of the Antarctic contribution to sea level rise over centennial timescales.