Articles | Volume 11, issue 1
https://doi.org/10.5194/esurf-11-117-2023
© 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/esurf-11-117-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
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28 Feb 2023
Research article | Highlight paper |
| 28 Feb 2023
| 28 Feb 2023
Multi-sensor monitoring and data integration reveal cyclical destabilization of the Äußeres Hochebenkar rock glacier
Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences, Innrain 25, 3. OG, 6020 Innsbruck, Austria
Alaska Climate Research Center, Geophysical Institute, University of Alaska Fairbanks, 2156 Koyukuk Dr, Fairbanks, AK 99775, United States
Thomas Zieher
Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences, Innrain 25, 3. OG, 6020 Innsbruck, Austria
Magnus Bremer
Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences, Innrain 25, 3. OG, 6020 Innsbruck, Austria
Department of Geography, University of Innsbruck, Innrain 52f, 6020 Innsbruck, Austria
Martin Stocker-Waldhuber
Institute for Interdisciplinary Mountain Research, Austrian Academy of Sciences, Innrain 25, 3. OG, 6020 Innsbruck, Austria
Vivien Zahs
Institute of Geography, Heidelberg University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
Bernhard Höfle
Institute of Geography, Heidelberg University, Im Neuenheimer Feld 368, 69120 Heidelberg, Germany
Interdisciplinary Center for Scientific Computing (IWR), Heidelberg University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
Christoph Klug
Department of Geography, University of Innsbruck, Innrain 52f, 6020 Innsbruck, Austria
Alessandro Cicoira
Department of Geography, University of Zurich, Winterthurerstr. 190, 8057 Zurich, Switzerland
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Andrea Fischer, Gabriele Schwaizer, Bernd Seiser, Kay Helfricht, and Martin Stocker-Waldhuber
The Cryosphere, 15, 4637–4654, https://doi.org/10.5194/tc-15-4637-2021, https://doi.org/10.5194/tc-15-4637-2021, 2021
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Eastern Alpine glaciers have been receding since the Little Ice Age maximum, but until now the majority of glacier margins could be delineated unambiguously. Today the outlines of totally debris-covered glacier ice are fuzzy and raise the discussion if these features are still glaciers. We investigated the fate of glacier remnants with high-resolution elevation models, analyzing also thickness changes in buried ice. In the past 13 years, the 46 glaciers of Silvretta lost one-third of their area.
K. Anders, L. Winiwarter, H. Mara, R. C. Lindenbergh, S. E. Vos, and B. Höfle
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A. B. Voordendag, B. Goger, C. Klug, R. Prinz, M. Rutzinger, and G. Kaser
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Lea Hartl, Lucia Felbauer, Gabriele Schwaizer, and Andrea Fischer
The Cryosphere, 14, 4063–4081, https://doi.org/10.5194/tc-14-4063-2020, https://doi.org/10.5194/tc-14-4063-2020, 2020
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Editor
Melting permafrost in high mountain areas represents a significant climate change driven hazard. This research shows the importance of this using novel photogrammetric methods coupled with a long observational record.
Melting permafrost in high mountain areas represents a significant climate change driven hazard....
Short summary
The rock glacier in Äußeres Hochebenkar (Austria) moved faster in 2021–2022 than it has in about 70 years of monitoring. It is currently destabilizing. Using a combination of different data types and methods, we show that there have been two cycles of destabilization at Hochebenkar and provide a detailed analysis of velocity and surface changes. Because our time series are very long and show repeated destabilization, this helps us better understand the processes of rock glacier destabilization.
The rock glacier in Äußeres Hochebenkar (Austria) moved faster in 2021–2022 than it has in...
