The Cryosphere
The Cryosphere
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Articles | Volume 14, issue 1
Articles | Volume 14, issue 1
https://doi.org/10.5194/tc-14-183-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-183-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 1
Research article
 | 
22 Jan 2020
Research article |  | 22 Jan 2020

Revisiting Austfonna, Svalbard, with potential field methods – a new characterization of the bed topography and its physical properties

Marie-Andrée Dumais and Marco Brönner

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Latest update: 02 Apr 2025
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Short summary
The subglacial bed of Austfonna is investigated using potential field methods. Airborne gravity data provide a new bed topography, improving on the traditional ground-penetrating radar measurements. Combined with airborne magnetic data, a 2-D forward model reveals the heterogeneity of the subsurface lithology and the physical properties of the bed. Our approach also assesses the presence of softer bed, carbonates and magmatic intrusions under Austfonna, which contribute to subglacial processes.
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