Articles | Volume 72, issue 2
https://doi.org/10.5194/egqsj-72-189-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egqsj-72-189-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
21 Aug 2023
Research article |
| 21 Aug 2023
| 21 Aug 2023
Subglacial hydrology from high-resolution ice-flow simulations of the Rhine Glacier during the Last Glacial Maximum: a proxy for glacial erosion
Department of Earth and Environmental Science, New Mexico Tech, Socorro, New Mexico, USA
CoSci LLC, Orlando, Florida, USA
Guillaume Jouvet
Department of Geography, University of Zurich, Zurich, Switzerland
Institute of Earth Surface Dynamics, University of Lausanne, Lausanne, Switzerland
Thomas Zwinger
CSC – IT Center for Science Ltd., Espoo, Finland
Angela Landgraf
Nagra, Wettingen, Switzerland
Urs H. Fischer
Nagra, Wettingen, Switzerland
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The Antarctic ice sheet has been losing mass over at least the past 3 decades in response to changes in atmospheric and oceanic conditions. This study presents an ensemble of model simulations of the Antarctic evolution over the 2015–2100 period based on various ice sheet models, climate forcings and emission scenarios. Results suggest that the West Antarctic ice sheet will continue losing a large amount of ice, while the East Antarctic ice sheet could experience increased snow accumulation.
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Short summary
During glacial times in Switzerland, glaciers of the Alps excavated valleys in low-lying regions that were later filled with sediment or water. How glaciers eroded these valleys is not well understood because erosion occurred near ice margins where ice moved slowly and was present for short times. Erosion is linked to the speed of ice and to water flowing under it. Here we present a model that estimates the location of water channels beneath the ice and links these locations to zones of erosion.
During glacial times in Switzerland, glaciers of the Alps excavated valleys in low-lying regions...
