Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 11, issue 1
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.
https://doi.org/10.5194/esurf-11-117-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 1
Research article
 | Highlight paper
 | 
28 Feb 2023
Research article | Highlight paper |  | 28 Feb 2023

Multi-sensor monitoring and data integration reveal cyclical destabilization of the Äußeres Hochebenkar rock glacier

Lea Hartl, Thomas Zieher, Magnus Bremer, Martin Stocker-Waldhuber, Vivien Zahs, Bernhard Höfle, Christoph Klug, and Alessandro Cicoira

Supplement

https://doi.org/10.5194/esurf-11-117-2023-supplement

Data sets

Flow velocity records at Rock Glacier Outer Hochebenkar (Äußeres Hochebenkar), Ötztal, Tyrolian Alps, Austria, 1997 et seq. M. Stocker-Waldhuber, A. Fischer, L. Hartl, J. Abermann, and H. Schneider https://doi.org/10.1594/PANGAEA.928244

Correspondence-driven plane-based M3C2 for quantification of 3D topographic change with lower uncertainty [Data and Source Code] V. Zahs, L. Winiwarter, K. Anders, J. G. Williams, M. Rutzinger, M. Bremer, and B. Höfle https://doi.org/10.11588/data/TGSVUI

Multisensor monitoring data of Hochebenkar Rock Glacier T. Zieher, M. Bremer, C. Klug, and L. Hartl https://doi.org/10.5281/zenodo.7010292

Model code and software

thomaszieher/HRG_reanalysis: v0.9.0 (v0.9.0) T. Zieher https://doi.org/10.5281/zenodo.7672997

LeaHartl/Hochebenkar_figures: Hochebenkar figures v0.1 (v0.1) L. Hartl https://doi.org/10.5281/zenodo.7673884

Video abstract

Two destabilization phases of the Äußeres Hochebenkar Rock Glacier A. Cicoira, L. Hartl, T. Zieher, M. Bremer, M. Stocker-Waldhuber, V. Zahs, B. Höfle, and C. Klug https://doi.org/10.5446/60175

Download
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.
Read more
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.
Read more