The Cryosphere
The Cryosphere
TC
Articles | Volume 18, issue 10
Articles | Volume 18, issue 10
https://doi.org/10.5194/tc-18-4873-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/tc-18-4873-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 10
Research article
 | 
29 Oct 2024
Research article |  | 29 Oct 2024

The organization of subglacial drainage during the demise of the Finnish Lake District Ice Lobe

Adam J. Hepburn, Christine F. Dow, Antti Ojala, Joni Mäkinen, Elina Ahokangas, Jussi Hovikoski, Jukka-Pekka Palmu, and Kari Kajuutti

Data sets

Supplementary material for 'Reorganisation of subglacial drainage processes during rapid melting of the Fennoscandian Ice Sheet' Adam Hepburn et al. https://doi.org/10.5281/zenodo.8344208

Heat flow, seismic cut-off depth and thermal modeling of the Fennoscandian Shield (https://hakku.gtk.fi/?locale=en) T. Veikkolainen et al. https://doi.org/10.1093/gji/ggx373

Superficial deposits of Finland 1:200 000 (sediment polygons) GTK, Finland https://tupa.gtk.fi/paikkatieto/meta/maapera_200k.html#tunnistamistiedo

Copernicus DEM - Global and European Digital Elevation Model Copernicus https://doi.org/10.5270/ESA-c5d3d65

Video supplement

Movie A1 Adam Hepburn et al. https://doi.org/10.5281/zenodo.8344208

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Short summary
Terrain formerly occupied by ice sheets in the last ice age allows us to parameterize models of basal water flow using terrain and data unavailable beneath current ice sheets. Using GlaDS, a 2D basal hydrology model, we explore the origin of murtoos, a specific landform found throughout Finland that is thought to mark the upper limit of channels beneath the ice. Our results validate many of the predictions of murtoo origins and demonstrate that such models can be used to explore past ice sheets.
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Special issue
Icy landscapes of the past (CP/ESSD/ESurf/TC inter-journal...