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Articles | Volume 17, issue 10
Articles | Volume 17, issue 10
https://doi.org/10.5194/se-17-1187-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-17-1187-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 10
Method article
 | 
20 Oct 2026
Method article |  | 20 Oct 2026

Improved recovery of sub-ice shelf bathymetry from gravity data using an isostatic correction: a case study from the Dotson and Crosson ice shelves, West Antarctica

Tom A. Jordan, Karen J. Heywood, Anna Wåhlin, Rob A. Hall, Atsuhiro Muto, Pierre Dutrieux, Kelly Hogan, James Girton, Karen E. Alley, and Erin Pettit

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Short summary
The shape of the water filled cavity hidden beneath ice shelves is extremely important, but hard to measure. Gravity data collected from aircraft can be used to predict the shape. However, in the Dotson Crosson ice shelves in West Antarctica, new direct observations from autonomous platforms sent beneath the ice, and seismic observations from the ice surface showed gravity models were systematically too shallow. We explain why and provide a solution applicable her and in other ice shelves.
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