Articles | Volume 19, issue 12
https://doi.org/10.5194/tc-19-6507-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-6507-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Dec 2025
Research article |
| 04 Dec 2025
| 04 Dec 2025
Multi-model estimate of Antarctic ice-shelf basal mass budget and ocean drivers
Benjamin K. Galton-Fenzi
CORRESPONDING AUTHOR
Australian Antarctic Division, Kingston, Tasmania, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Battery Point, Australia
Australian Centre for Excellence in Antarctic Science, University of Tasmania, Sandy Bay, Australia
Richard Porter-Smith
Australian Antarctic Division, Kingston, Tasmania, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Battery Point, Australia
Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Battery Point, Australia
Eva Cougnon
Integrated Marine Observing System, Australian Ocean Data Network, University of Tasmania, Hobart, TAS, Australia
David E. Gwyther
School of the Environment, The University of Queensland, St Lucia, QLD, Australia
Wilma G. C. Huneke
Australian Centre of Excellence for Climate Extremes, Australian National University, Canberra, Australia
Madelaine G. Rosevear
Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
Australian Centre for Excellence in Antarctic Science, University of Tasmania, Sandy Bay, Australia
Xylar Asay-Davis
Argonne National Laboratory, Lemont, DuPage County, Illinois, USA
Fabio Boeira Dias
University of New South Wales, Sydney, Australia
Australian Centre for Excellence in Antarctic Science, University of Tasmania, Sandy Bay, Australia
Michael S. Dinniman
Old Dominion University, Norfolk, Virginia, USA
David Holland
New York University, New York, USA
Kazuya Kusahara
Japan Agency for Marine-Earth Science and Technology, Japan
Kaitlin A. Naughten
British Antarctic Survey, Cambridge, UK
Keith W. Nicholls
British Antarctic Survey, Cambridge, UK
Charles Pelletier
Earth and Life Institute (ELI), UCLouvain, Louvain-la-Neuve, Belgium
Ole Richter
University of Rostock, Rostock, Germany
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Hélène Seroussi
Thayer School of Engineering, Dartmouth College, Hanover, NH, USA
Ralph Timmermann
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
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Discussed (final revised paper)
Latest update: 01 Apr 2026
Short summary
Quantifying melt and freeze beneath Antarctica’s floating ice shelves is vital to understanding present-day ice-sheet behavior and its potential to contribute to future sea-level rise. We compare 10 ice-shelf/ocean computer simulations with satellite data, providing the first multi-model estimate of melting and refreezing driven by the ocean. This new estimate offers a valuable tool for assessing ice-shelf roles in current and future ice-sheet changes, informing coastal adaptation strategies.
Quantifying melt and freeze beneath Antarctica’s floating ice shelves is vital to understanding...
