The Cryosphere
The Cryosphere
TC
Articles | Volume 19, issue 4
Articles | Volume 19, issue 4
https://doi.org/10.5194/tc-19-1513-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-1513-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 4
Research article
 | 
04 Apr 2025
Research article |  | 04 Apr 2025

Long-term development of a perennial firn aquifer on the Lomonosovfonna ice cap, Svalbard

Tim van den Akker, Ward van Pelt, Rickard Petterson, and Veijo A. Pohjola

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Short summary
Liquid water can persist within old snow on glaciers and ice caps if it can percolate into the snow before it refreezes. Snow is a good insulator, and it is porous where the percolated water can be stored. If this happens, the water piles up and forms a groundwater-like system. Here, we show observations of such a groundwater-like system found in Svalbard. We demonstrate that it behaves like a groundwater system and use that to model the development of the water table from 1957 until the present day.
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