Articles | Volume 15, issue 4
The Cryosphere, 15, 1863–1880, 2021
https://doi.org/10.5194/tc-15-1863-2021
The Cryosphere, 15, 1863–1880, 2021
https://doi.org/10.5194/tc-15-1863-2021

Research article 19 Apr 2021

Research article | 19 Apr 2021

Grounding zone subglacial properties from calibrated active-source seismic methods

Huw J. Horgan et al.

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Short summary
The grounding zone marks the transition from a grounded ice sheet to a floating ice shelf. Like Earth's coastlines, the grounding zone is home to interactions between the ocean, fresh water, and geology but also has added complexity and importance due to the overriding ice. Here we use seismic surveying – sending sound waves down through the ice – to image the grounding zone of Whillans Ice Stream in West Antarctica and learn more about the nature of this important transition zone.