Articles | Volume 15, issue 8
The Cryosphere, 15, 3731–3749, 2021
https://doi.org/10.5194/tc-15-3731-2021
The Cryosphere, 15, 3731–3749, 2021
https://doi.org/10.5194/tc-15-3731-2021

Research article 12 Aug 2021

Research article | 12 Aug 2021

Development of a subglacial lake monitored with radio-echo sounding: case study from the eastern Skaftá cauldron in the Vatnajökull ice cap, Iceland

Eyjólfur Magnússon et al.

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Cited articles

Åström, J. A., Riikilä, T. I., Tallinen, T., Zwinger, T., Benn, D., Moore, J. C., and Timonen, J.: A particle based simulation model for glacier dynamics, The Cryosphere, 7, 1591–1602, https://doi.org/10.5194/tc-7-1591-2013, 2013. 
Bell, R. E., Studinger, M., Shuman, C. A., Fahnestock, M. A., and Joughin, I.: Large subglacial lakes in East Antarctica at the onset of fast-flowing ice streams, Nature, 445, 904–907, https://doi.org/10.1038/nature05554, 2007. 
Björnsson, H.: The cause of jökulhlaups in the Skaftá river, Vatnajökull, Jökull, 27, 71–78, 1977. 
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Short summary
We present a unique insight into the shape and development of a subglacial lake over a 7-year period, using repeated radar survey. The lake collects geothermal meltwater, which is released in semi-regular floods, often referred to as jökulhlaups. The applicability of our survey approach to monitor the water stored in the lake for a better assessment of the potential hazard of jökulhlaups is demonstrated by comparison with independent measurements of released water volume during two jökulhlaups.