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Preprints
https://doi.org/10.5194/egusphere-2024-3105
https://doi.org/10.5194/egusphere-2024-3105
24 Oct 2024
 | 24 Oct 2024

Brief Communications: Tides and Damage as Drivers of Lake Drainages on Shackleton Ice Shelf

Julius Sommer, Maaike Izeboud, Sophie de Roda Husman, Bert Wouters, and Stef Lhermitte

Abstract. To investigate the drivers of lake drainages in Antarctica, we analyzed optical remote sensing data from the Shackleton Ice Shelf in East Antarctica over three melt seasons. Our study identified one drainage event in 2018–2019, eleven in 2019–2020, and one in 2020–2021. All identified drainages occurred in regions with medium to high levels of ice shelf damage and with active damage development. Additionally, 12 out of 13 drainages coincided with increases in tidal heights. These findings provide insights into the factors influencing current lake drainages in Antarctica and may help in predicting future drainage events.

Competing interests: At least one author is member of the editorial board of journal The Cryosphere.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
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Short summary
Ice shelves, the floating extensions of Antarctica’s ice sheet, play a crucial role in...
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