The Cryosphere
The Cryosphere
TC
Articles | Volume 19, issue 1
Articles | Volume 19, issue 1
https://doi.org/10.5194/tc-19-375-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-375-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 1
Research article
 | 
28 Jan 2025
Research article |  | 28 Jan 2025

Evidence of active subglacial lakes under a slowly moving coastal region of the Antarctic Ice Sheet

Jennifer F. Arthur, Calvin Shackleton, Geir Moholdt, Kenichi Matsuoka, and Jelte van Oostveen

Supplement

https://doi.org/10.5194/tc-19-375-2025-supplement

Data sets

Active subglacial lakes in coastal Dronning Maud Land, East Antarctica derived from ICESat-2 and ICESat J. Arthur et al. https://doi.org/10.21334/npolar.2024.ab777130

Ensemble analysis of potential subglacial meltwater streams in coastal Dronning Maud Land, Antarctica C. Shackleton et al. https://doi.org/10.21334/npolar.2024.b438191c

ATLAS/ICESat-2 L3B Slope-Corrected Land Ice Height Time Series B. Smith et al. https://doi.org/10.5067/ATLAS/ATL11.006

GLAS/ICESat L2 Global Antarctic and Greenland Ice Sheet Altimetry Data (HDF5) H. J. Zwally et al. https://doi.org/10.5067/ICESAT/GLAS/DATA209

Increased West Antarctic and unchanged East Antarctic ice discharge over the last 7 years (https://its-live.jpl.nasa.gov/#data-portal) A. S. Gardner et al. https://doi.org/10.5194/tc-12-521-2018

The Reference Elevation Model of Antarctica (https://www.pgc.umn.edu/data/rema/) I. M. Howat et al. https://doi.org/10.5194/tc-13-665-2019

Model code and software

DML-SubglacialLakes J. Arthur https://doi.org/10.5281/zenodo.13640820

calvinshackleton/DML-SubglacialHydrology: DML-SubglacialHydrology (v1.0) C. Shackleton https://doi.org/10.5281/zenodo.13627356

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Short summary
Lakes can form beneath the large ice sheets and can influence ice-sheet dynamics and stability. Some of these subglacial lakes are active, meaning that they periodically drain and refill. Here we report seven new active subglacial lakes close to the Antarctic Ice Sheet margin using satellite measurements of ice surface height changes in a region where little was known previously. These findings improve our understanding of subglacial hydrology and will help refine subglacial hydrological models.
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