Articles | Volume 9, issue 5
https://doi.org/10.5194/esurf-9-1125-2021
© Author(s) 2021. 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-9-1125-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Sep 2021
Research article |
| 09 Sep 2021
| 09 Sep 2021
A temperature-dependent mechanical model to assess the stability of degrading permafrost rock slopes
Philipp Mamot
CORRESPONDING AUTHOR
Chair of Landslide Research, Technical University of Munich, 80333 Munich, Germany
Samuel Weber
Chair of Landslide Research, Technical University of Munich, 80333 Munich, Germany
Saskia Eppinger
Chair of Landslide Research, Technical University of Munich, 80333 Munich, Germany
Michael Krautblatter
Chair of Landslide Research, Technical University of Munich, 80333 Munich, Germany
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A failure criterion for ice-filled rock joints is a prerequisite to accurately assess the stability of permafrost rock slopes. In 2018 a failure criterion was proposed based on limestone. Now, we tested the transferability to other rocks using mica schist and gneiss which provide the maximum expected deviation of lithological effects on the shear strength. We show that even for controversial rocks the failure criterion stays unaltered, suggesting that it is applicable to mostly all rock types.
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Monitoring rock slopes for a long time helps to understand the impact of climate change on the alpine environment. Measurements of seismic signals are often affected by external influences, e.g., unwanted anthropogenic noise. In the presented work, these influences are automatically identified and removed to enable proper geoscientific analysis. The methods presented are based on machine learning and intentionally kept generic so that they can be equally applied in other (more generic) settings.
Philipp Mamot, Samuel Weber, Tanja Schröder, and Michael Krautblatter
The Cryosphere, 12, 3333–3353, https://doi.org/10.5194/tc-12-3333-2018, https://doi.org/10.5194/tc-12-3333-2018, 2018
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Most of the observed failures in permafrost-affected alpine rock walls are likely triggered by the mechanical destabilisation of warming bedrock permafrost including ice-filled joints. We present a systematic study of the brittle shear failure of ice and rock–ice contacts along rock joints in a simulated depth ≤ 30 m and at temperatures from −10 to −0.5 °C. Warming and sudden reduction in rock overburden due to the detachment of an upper rock mass lead to a significant drop in shear resistance.
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Samuel Weber, Jan Beutel, Jérome Faillettaz, Andreas Hasler, Michael Krautblatter, and Andreas Vieli
The Cryosphere, 11, 567–583, https://doi.org/10.5194/tc-11-567-2017, https://doi.org/10.5194/tc-11-567-2017, 2017
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At the evocation of icy landscapes, Africa is not the first place that comes to mind. The modern relief of Southern Africa is generally considered to be a result of uplift and counteracting erosion. We show that some of the modern relief of this region is due to fossil glacial landscapes – striated pavements, valleys, and fjords – tied to an ice age that occurred ca. 300 Myr ago. We focus on how these landscapes have escaped being erased for hundreds of millions of years.
Lorenzo Durante, Nicoletta Tambroni, and Michele Bolla Pittaluga
Earth Surf. Dynam., 13, 455–471, https://doi.org/10.5194/esurf-13-455-2025, https://doi.org/10.5194/esurf-13-455-2025, 2025
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River deltas evolve due to natural forces and human activities, posing challenges for communities relying on stable water flow. This study examines how different flow distributions shape delta channels. Using a new theoretical model, we identify branch length as the key factor influencing stability. Applying this to Italy's Po River Delta, we highlight areas at risk of change, providing insights for better management and planning.
Hasan Eslami, Erfan Poursoleymanzadeh, Mojtaba Hiteh, Keivan Tavakoli, Melika Yavari Nia, Ehsan Zadehali, Reihaneh Zarrabi, and Alessio Radice
Earth Surf. Dynam., 13, 437–454, https://doi.org/10.5194/esurf-13-437-2025, https://doi.org/10.5194/esurf-13-437-2025, 2025
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A channel may be aggraded by overloaded sediment. In this study we realize an aggradation experiment and determine the celerity at which an aggradation wave, due to sediment overloading, migrates. We also investigate the celerity of small perturbations, as quantified by mathematical formulations. The celerities of the two kinds are correlated with each other. However, the celerity of small perturbations is larger than the other one, which is less than a few percent of the water velocity.
Larry Syu-Heng Lai, Adam M. Booth, Alison R. Duvall, and Erich Herzig
Earth Surf. Dynam., 13, 417–435, https://doi.org/10.5194/esurf-13-417-2025, https://doi.org/10.5194/esurf-13-417-2025, 2025
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pyTopoComplexity is an open-source Python tool for multiscale land surface complexity analysis. Applied to a landslide-affected area in Washington, USA, it accurately identified landform features at various scales, enhancing our understanding of landform recovery after disturbances. By integrating with Landlab’s landscape evolution simulations, the software allows researchers to explore how different processes drive the evolution of surface complexity in response to natural forces.
Dominik Amschwand, Jonas Wicky, Martin Scherler, Martin Hoelzle, Bernhard Krummenacher, Anna Haberkorn, Christian Kienholz, and Hansueli Gubler
Earth Surf. Dynam., 13, 365–401, https://doi.org/10.5194/esurf-13-365-2025, https://doi.org/10.5194/esurf-13-365-2025, 2025
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Rock glaciers are comparatively climate-robust permafrost landforms. We estimated the energy budget of the seasonally thawing active layer (AL) of Murtèl rock glacier (Swiss Alps) based on a novel sub-surface sensor array. In the coarse blocky AL, heat is transferred by thermal radiation and air convection. The ground heat flux is largely spent on melting seasonal ice in the AL. Convective cooling and the seasonal ice turnover make rock glaciers climate-robust and shield the permafrost beneath.
Octria A. Prasojo, Trevor B. Hoey, Amanda Owen, and Richard D. Williams
Earth Surf. Dynam., 13, 349–363, https://doi.org/10.5194/esurf-13-349-2025, https://doi.org/10.5194/esurf-13-349-2025, 2025
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Decades of delta avulsion (i.e. channel abrupt jump) studies have not resolved what the main controls of delta avulsion are. Using a computer model, integrated with field observation, analytical, and laboratory-made deltas, we found that the sediment load, which itself is controlled by the steepness of the river upstream of a delta, controls the timing of avulsion. We can now better understand the main cause of abrupt channel changes in deltas, a finding that aids flood risk management in river deltas.
Chloé Seibert, Cecilia McHugh, Chris Paola, Leonardo Seeber, and James Tucker
Earth Surf. Dynam., 13, 341–348, https://doi.org/10.5194/esurf-13-341-2025, https://doi.org/10.5194/esurf-13-341-2025, 2025
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We propose a new mechanism of co-seismic sediment entrainment induced by shear stress at the sediment–water interface during major subduction earthquakes rupturing to the trench. Physical experiments show that flow velocities consistent with long-period earthquake motions can entrain synthetic marine sediment, and high-frequency vertical shaking can enhance this mobilization. They validate the proposed entrainment mechanism, which opens new avenues for paleoseismology in deep-sea environments.
Aljoscha Rheinwalt, Benjamin Purinton, and Bodo Bookhagen
EGUsphere, https://doi.org/10.5194/egusphere-2025-1110, https://doi.org/10.5194/egusphere-2025-1110, 2025
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Our study presents a computer-based method to detect and measure pebbles in 3D models reconstructed from camera photos. We tested it in a controlled setup and achieved 98 % accuracy in detecting pebbles. Unlike traditional 2D methods, our approach provides full 3D size and orientation data. This improves sediment analysis and riverbed studies by offering more precise measurements. Our work highlights the potential of 3D modeling for studying natural surfaces.
Aline Zinelabedin, Joel Mohren, Maria Wierzbicka-Wieczorek, Tibor Janos Dunai, Stefan Heinze, and Benedikt Ritter
Earth Surf. Dynam., 13, 257–276, https://doi.org/10.5194/esurf-13-257-2025, https://doi.org/10.5194/esurf-13-257-2025, 2025
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In order to interpret the formation processes of subsurface salt wedges and polygonal patterned grounds from the northern Atacama Desert, we present a multi-methodological approach. Due to the high salt content of the wedges, we suggest that their formation is dominated by subsurface salt dynamics requiring moisture. We assume that the climatic conditions during the wedge growth were slightly wetter than today, offering the potential to use the wedges as palaeoclimate archives.
Marine Le Minor, Dimitri Lague, Jamie Howarth, and Philippe Davy
EGUsphere, https://doi.org/10.5194/egusphere-2025-1271, https://doi.org/10.5194/egusphere-2025-1271, 2025
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In natural rivers, flow variability and sediment heterogeneity affect how sediment grains are transported. A unique law that predicts the total amount of sediment transportable by a river for a wide range of sediment mixtures and flow conditions exist but unclear trends remain. Two improvements of this law, a standardized onset of sediment transport and a common reference transport height across all sizes, appear to be critical to have a functional multi grain-size total sediment load.
Alexander B. Prescott, Jon D. Pelletier, Satya Chataut, and Sriram Ananthanarayan
Earth Surf. Dynam., 13, 239–256, https://doi.org/10.5194/esurf-13-239-2025, https://doi.org/10.5194/esurf-13-239-2025, 2025
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Many Earth surface processes are controlled by the spatial pattern of surface water flow. We review commonly used methods for predicting such spatial patterns in digital landform models and document the pros and cons of commonly used methods. We propose a new method that is designed to minimize those limitations and show that it works well in a variety of test cases.
Jon D. Pelletier, Robert G. Hayes, Olivia Hoch, Brendan Fenerty, and Luke A. McGuire
Earth Surf. Dynam., 13, 219–238, https://doi.org/10.5194/esurf-13-219-2025, https://doi.org/10.5194/esurf-13-219-2025, 2025
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We demonstrate that landscapes with more planar initial conditions tend to have lower mean junction angles. Geomorphic processes on alluvial piedmonts result in especially planar initial conditions, consistent with a correlation between junction angles and the presence/absence of Late Cenozoic alluvial deposits and the constraint imposed by the intersection of planar approximations to the topography upslope from tributary junctions. We caution against using junction angles to infer paleoclimate.
Soichi Tanabe and Toshiki Iwasaki
EGUsphere, https://doi.org/10.5194/egusphere-2025-103, https://doi.org/10.5194/egusphere-2025-103, 2025
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We try to understand how the sediment supply from the upstream river reach affect the downstream river morphology using a numerical model. If the supplied sediment is composed of variety of size class of particles, a small size bed wave that is composed of mainly fine particles (sorting wave) can propagate to downstream very long distance. However, presence of bars suppresses the effect of sorting wave greatly, and thus the sediment supply has limited role in the downstream river morphology.
Janbert Aarnink, Tom Beucler, Marceline Vuaridel, and Virginia Ruiz-Villanueva
Earth Surf. Dynam., 13, 167–189, https://doi.org/10.5194/esurf-13-167-2025, https://doi.org/10.5194/esurf-13-167-2025, 2025
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This study presents a novel convolutional-neural-network approach for detecting instream large wood in rivers, addressing the need for flexible monitoring methods across diverse data sources. Using a database of 15 228 fully labelled images, the model achieved a weighted mean average precision of 67 %. Fine-tuning parameters and sampling techniques can improve performance by over 10 % in some cases, offering valuable insights into ecosystem management.
Julius Reich and Axel Winterscheid
Earth Surf. Dynam., 13, 191–217, https://doi.org/10.5194/esurf-13-191-2025, https://doi.org/10.5194/esurf-13-191-2025, 2025
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Analyzing the geometry and the dynamics of riverine bedforms (so-called dune tracking) is important for various fields of application and contributes to sound and efficient river and sediment management. We developed a workflow that enables a robust estimation of bedform characteristics and with which comprehensive sensitivity analyses can be carried out. Using a field dataset, we show that the setting of input parameters in bedform analyses can have a significant impact on the results.
Abhishek Kashyap, Kristen L. Cook, and Mukunda Dev Behera
Earth Surf. Dynam., 13, 147–166, https://doi.org/10.5194/esurf-13-147-2025, https://doi.org/10.5194/esurf-13-147-2025, 2025
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Short-lived, high-magnitude flood events across high mountain regions leave substantial geomorphic imprints, which are frequently triggered by excess precipitation, glacial lake outbursts, and natural dam breaches. These catastrophic floods highlight the importance of understanding the complex interaction between climatic, hydrological, and geological forces in bedrock catchments. Extreme floods can have long-term geomorphic consequences on river morphology and fluvial processes.
Caroline Fenske, Jean Braun, François Guillocheau, and Cécile Robin
Earth Surf. Dynam., 13, 119–146, https://doi.org/10.5194/esurf-13-119-2025, https://doi.org/10.5194/esurf-13-119-2025, 2025
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We have developed a new numerical model to represent the formation of duricrusts, which are hard mineral layers found in soils and at the surface of the Earth. We assume that the formation mechanism implies variations in the height of the water table and that the hardening rate is proportional to precipitation. The model allows us to quantify the potential feedbacks they generate on the surface topography and the thickness of the regolith/soil layer.
Jens M. Turowski, Fergus McNab, Aaron Bufe, and Stefanie Tofelde
Earth Surf. Dynam., 13, 97–117, https://doi.org/10.5194/esurf-13-97-2025, https://doi.org/10.5194/esurf-13-97-2025, 2025
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Channel belts comprise the area affected by a river due to lateral migration and floods. As a landform, they affect water resources and flood hazard, and they often host unique ecological communities. We develop a model describing the evolution of channel-belt area over time. The model connects the behaviour of the river to the evolution of the channel belt over a timescale of centuries. A comparison to selected data from experiments and real river systems verifies the random walk approach.
Rémi Bossis, Vincent Regard, Sébastien Carretier, and Sandrine Choy
Earth Surf. Dynam., 13, 71–79, https://doi.org/10.5194/esurf-13-71-2025, https://doi.org/10.5194/esurf-13-71-2025, 2025
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The erosion of rocky coasts occurs episodically through wave action and landslides, constituting a major natural hazard. Documenting the factors that control the coastal retreat rate over millennia is fundamental to evidencing any change in time. However, the known rates to date are essentially representative of the last few decades. Here, we present a new method using the concentration of an isotope, 10Be, in sediment eroded from the cliff to quantify its retreat rate averaged over millennia.
Jean Vérité, Clément Narteau, Olivier Rozier, Jeanne Alkalla, Laurie Barrier, and Sylvain Courrech du Pont
Earth Surf. Dynam., 13, 23–39, https://doi.org/10.5194/esurf-13-23-2025, https://doi.org/10.5194/esurf-13-23-2025, 2025
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Using a numerical model in 2D, we study how two identical dunes interact with each other when exposed to reversing winds. Depending on the distance between the dunes, they either repel or attract each other until they reach an equilibrium distance, which is controlled by the wind strength, wind reversal frequency, and dune size. This process is controlled by the modification of wind flow over dunes of various shapes, influencing the sediment transport downstream.
Alexandru Onaca, Flavius Sirbu, Valentin Poncos, Christin Hilbich, Tazio Strozzi, Petru Urdea, Răzvan Popescu, Oana Berzescu, Bernd Etzelmüller, Alfred Vespremeanu-Stroe, Mirela Vasile, Delia Teleagă, Dan Birtaș, Iosif Lopătiță, Simon Filhol, Alexandru Hegyi, and Florina Ardelean
EGUsphere, https://doi.org/10.5194/egusphere-2024-3262, https://doi.org/10.5194/egusphere-2024-3262, 2025
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This study establishes a methodology for the study of slow-moving rock glaciers in marginal permafrost and provides the basic knowledge for understanding rock glaciers in south east Europe. By using a combination of different methods (remote sensing, geophysical survey, thermal measurements), we found out that, on the transitional rock glaciers, low ground ice content (i.e. below 20 %) produces horizontal displacements of up to 3 cm per year.
Orie Cecil, Nicholas Cohn, Matthew Farthing, Sourav Dutta, and Andrew Trautz
Earth Surf. Dynam., 13, 1–22, https://doi.org/10.5194/esurf-13-1-2025, https://doi.org/10.5194/esurf-13-1-2025, 2025
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Using computational fluid dynamics, we analyze the error trends of an analytical shear stress distribution model used to drive aeolian transport for coastal dunes, which are an important line of defense against storm-related flooding hazards. We find that compared to numerical simulations, the analytical model results in a net overprediction of the landward migration rate. Additionally, two data-driven approaches are proposed for reducing the error while maintaining computational efficiency.
Hayden L. Jacobson, Danica L. Roth, Gabriel Walton, Margaret Zimmer, and Kerri Johnson
Earth Surf. Dynam., 12, 1415–1446, https://doi.org/10.5194/esurf-12-1415-2024, https://doi.org/10.5194/esurf-12-1415-2024, 2024
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Loose grains travel farther after a fire because no vegetation is left to stop them. This matters since loose grains at the base of a slope can turn into a debris flow if it rains. To find if grass growing back after a fire had different impacts on grains of different sizes on slopes of different steepness, we dropped thousands of natural grains and measured how far they went. Large grains went farther 7 months after the fire than 11 months after, and small grain movement didn’t change much.
Elizabeth N. Orr, Taylor F. Schildgen, Stefanie Tofelde, Hella Wittmann, and Ricardo N. Alonso
Earth Surf. Dynam., 12, 1391–1413, https://doi.org/10.5194/esurf-12-1391-2024, https://doi.org/10.5194/esurf-12-1391-2024, 2024
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Fluvial terraces and alluvial fans in the Toro Basin, NW Argentina, record river evolution and global climate cycles over time. Landform dating reveals lower-frequency climate cycles (100 kyr) preserved downstream and higher-frequency cycles (21/40 kyr) upstream, supporting theoretical predications that longer rivers filter out higher-frequency climate signals. This finding improves our understanding of the spatial distribution of sedimentary paleoclimate records within landscapes.
Fritz Schlunegger, Edi Kissling, Dimitri Tibo Bandou, Guilhem Amin Douillet, David Mair, Urs Marti, Regina Reber, Patrick Schläfli, and Michael Alfred Schwenk
Earth Surf. Dynam., 12, 1371–1389, https://doi.org/10.5194/esurf-12-1371-2024, https://doi.org/10.5194/esurf-12-1371-2024, 2024
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Overdeepenings are bedrock depressions filled with sediment. We combine the results of a gravity survey with drilling data to explore the morphology of such a depression beneath the city of Bern. We find that the target overdeepening comprises two basins >200 m deep. They are separated by a bedrock riegel that itself is cut by narrow canyons up to 150 m deep. We postulate that these structures formed underneath a glacier, where erosion by subglacial meltwater caused the formation of the canyons.
Stefan Hergarten
Earth Surf. Dynam., 12, 1315–1327, https://doi.org/10.5194/esurf-12-1315-2024, https://doi.org/10.5194/esurf-12-1315-2024, 2024
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Faceted topographies are impressive footprints of active tectonics in geomorphology. This paper investigates the evolution of faceted topographies at normal faults and their interaction with a river network theoretically and numerically. As a main result beyond several relations for the geometry of facets, the horizontal displacement associated with normal faults is crucial for the dissection of initially polygonal facets into triangular facets bounded by almost parallel rivers.
Justin A. Nghiem, Gen K. Li, Joshua P. Harringmeyer, Gerard Salter, Cédric G. Fichot, Luca Cortese, and Michael P. Lamb
Earth Surf. Dynam., 12, 1267–1294, https://doi.org/10.5194/esurf-12-1267-2024, https://doi.org/10.5194/esurf-12-1267-2024, 2024
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Fine sediment grains in freshwater can cohere into faster-settling particles called flocs, but floc settling velocity theory has not been fully validated. Combining three data sources in novel ways in the Wax Lake Delta, we verified a semi-empirical model relying on turbulence and geochemical factors. For a physics-based model, we showed that the representative grain diameter within flocs relies on floc structure and that heterogeneous flow paths inside flocs increase floc settling velocity.
Jessica Marggraf, Guillaume Dramais, Jérôme Le Coz, Blaise Calmel, Benoît Camenen, David J. Topping, William Santini, Gilles Pierrefeu, and François Lauters
Earth Surf. Dynam., 12, 1243–1266, https://doi.org/10.5194/esurf-12-1243-2024, https://doi.org/10.5194/esurf-12-1243-2024, 2024
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Suspended-sand fluxes in rivers vary with time and space, complicating their measurement. The proposed method captures the vertical and lateral variations of suspended-sand concentration throughout a river cross-section. It merges water samples taken at various positions throughout the cross-section with high-resolution acoustic velocity measurements. This is the first method that includes a fully applicable uncertainty estimation; it can easily be applied to any other study sites.
Dominic T. Robson and Andreas C. W. Baas
Earth Surf. Dynam., 12, 1205–1226, https://doi.org/10.5194/esurf-12-1205-2024, https://doi.org/10.5194/esurf-12-1205-2024, 2024
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Barchans are fast-moving sand dunes which form large populations (swarms) on Earth and Mars. We show that a small range of model parameters produces swarms in which dune size does not vary downwind – something that is observed in nature but not when using earlier models. We also show how the shape of dunes and the spatial patterns they form are affected by wind direction. This work furthers our understanding of the interplay between environmental drivers, dune interactions, and swarm properties.
Jeffrey Keck, Erkan Istanbulluoglu, Benjamin Campforts, Gregory Tucker, and Alexander Horner-Devine
Earth Surf. Dynam., 12, 1165–1191, https://doi.org/10.5194/esurf-12-1165-2024, https://doi.org/10.5194/esurf-12-1165-2024, 2024
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MassWastingRunout (MWR) is a new landslide runout model designed for sediment transport, landscape evolution, and hazard assessment applications. MWR is written in Python and includes a calibration utility that automatically determines best-fit parameters for a site and empirical probability density functions of each parameter for probabilistic model implementation. MWR and Jupyter Notebook tutorials are available as part of the Landlab package at https://github.com/landlab/landlab.
Ariane Mueting and Bodo Bookhagen
Earth Surf. Dynam., 12, 1121–1143, https://doi.org/10.5194/esurf-12-1121-2024, https://doi.org/10.5194/esurf-12-1121-2024, 2024
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This study investigates the use of optical PlanetScope data for offset tracking of the Earth's surface movement. We found that co-registration accuracy is locally degraded when outdated elevation models are used for orthorectification. To mitigate this bias, we propose to only correlate scenes acquired from common perspectives or base orthorectification on more up-to-date elevation models generated from PlanetScope data alone. This enables a more detailed analysis of landslide dynamics.
Cho-Hee Lee, Yeong Bae Seong, John Weber, Sangmin Ha, Dong-Eun Kim, and Byung Yong Yu
Earth Surf. Dynam., 12, 1091–1120, https://doi.org/10.5194/esurf-12-1091-2024, https://doi.org/10.5194/esurf-12-1091-2024, 2024
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Topographic metrics were used to understand changes due to tectonic activity. We evaluated the relative tectonic activity along the Ulsan Fault Zone (UFZ), one of the most active fault zones in South Korea. We divided the UFZ into five segments, based on the spatial variation in activity. We modeled the landscape evolution of the study area and interpreted tectono-geomorphic history during which the northern part of the UFZ experienced asymmetric uplift, while the southern part did not.
Viktoria Kosmalla, Oliver Lojek, Jana Carus, Kara Keimer, Lukas Ahrenbeck, Björn Mehrtens, David Schürenkamp, Boris Schröder, and Nils Goseberg
EGUsphere, https://doi.org/10.5194/egusphere-2024-2688, https://doi.org/10.5194/egusphere-2024-2688, 2024
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This study analysed seasonal biomechanical traits of marram grass at two coastal dune sites using monthly field and lab data acquired 2022. Differences in density, leaf length, and flower stems were observed, which are unaffected by wind and deemed transferable. These findings enable surrogate model development for numerical and physical experiments alike, where live vegetation is impractical. Results address the knowledge gap how dune stability and erosion resistance are affected by vegetation.
Juditha Aga, Livia Piermattei, Luc Girod, Kristoffer Aalstad, Trond Eiken, Andreas Kääb, and Sebastian Westermann
Earth Surf. Dynam., 12, 1049–1070, https://doi.org/10.5194/esurf-12-1049-2024, https://doi.org/10.5194/esurf-12-1049-2024, 2024
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Coastal rock cliffs on Svalbard are considered to be fairly stable; however, long-term trends in coastal-retreat rates remain unknown. This study examines changes in the coastline position along Brøggerhalvøya, Svalbard, using aerial images from 1970, 1990, 2010, and 2021. Our analysis shows that coastal-retreat rates accelerate during the period 2010–2021, which coincides with increasing storminess and retreating sea ice.
Aaron T. Steelquist, Gustav B. Seixas, Mary L. Gillam, Sourav Saha, Seulgi Moon, and George E. Hilley
Earth Surf. Dynam., 12, 1071–1089, https://doi.org/10.5194/esurf-12-1071-2024, https://doi.org/10.5194/esurf-12-1071-2024, 2024
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The rates at which rivers erode their bed can be used to interpret the geologic history of a region. However, these rates depend significantly on the time window over which you measure. We use multiple dating methods to determine an incision rate for the San Juan River and compare it to regional rates with longer timescales. We demonstrate how specific geologic events, such as cutoffs of bedrock meander bends, are likely to preserve material we can date but also bias the rates we measure.
Johannes Leinauer, Michael Dietze, Sibylle Knapp, Riccardo Scandroglio, Maximilian Jokel, and Michael Krautblatter
Earth Surf. Dynam., 12, 1027–1048, https://doi.org/10.5194/esurf-12-1027-2024, https://doi.org/10.5194/esurf-12-1027-2024, 2024
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Massive rock slope failures are a significant alpine hazard and change the Earth's surface. Therefore, we must understand what controls the preparation of such events. By correlating 4 years of slope displacements with meteorological and seismic data, we found that water from rain and snowmelt is the most important driver. Our approach is applicable to similar sites and indicates where future climatic changes, e.g. in rain intensity and frequency, may alter the preparation of slope failure.
Julien Coatléven and Benoit Chauveau
Earth Surf. Dynam., 12, 995–1026, https://doi.org/10.5194/esurf-12-995-2024, https://doi.org/10.5194/esurf-12-995-2024, 2024
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The aim of this paper is to explain how to incorporate classical water flow routines into landscape evolution models while keeping numerical errors under control. The key idea is to adapt filtering strategies to eliminate anomalous numerical errors and mesh dependencies, as confirmed by convergence tests with analytic solutions. The emergence of complex geomorphic structures is now driven exclusively by nonlinear heterogeneous physical processes rather than by random numerical artifacts.
Jingjuan Li, John D. Jansen, Xuanmei Fan, Zhiyong Ding, Shugang Kang, and Marco Lovati
Earth Surf. Dynam., 12, 953–971, https://doi.org/10.5194/esurf-12-953-2024, https://doi.org/10.5194/esurf-12-953-2024, 2024
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In this study, we investigated the geomorphology, sedimentology, and chronology of Tuanjie (seven terraces) and Taiping (three terraces) terraces in Diexi, eastern Tibetan Plateau. Results highlight that two damming and three outburst events occurred in the area during the late Pleistocene, and the outburst floods have been a major factor in the formation of tectonically active mountainous river terraces. Tectonic activity and climatic changes play a minor role.
Andrew Hollyday, Maureen E. Raymo, Jacqueline Austermann, Fred Richards, Mark Hoggard, and Alessio Rovere
Earth Surf. Dynam., 12, 883–905, https://doi.org/10.5194/esurf-12-883-2024, https://doi.org/10.5194/esurf-12-883-2024, 2024
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Sea level was significantly higher during the Pliocene epoch, around 3 million years ago. The present-day elevations of shorelines that formed in the past provide a data constraint on the extent of ice sheet melt and the global sea level response under warm Pliocene conditions. In this study, we identify 10 escarpments that formed from wave-cut erosion during Pliocene times and compare their elevations with model predictions of solid Earth deformation processes to estimate past sea level.
Gregory A. Ruetenik, Ken L. Ferrier, and Odin Marc
Earth Surf. Dynam., 12, 863–881, https://doi.org/10.5194/esurf-12-863-2024, https://doi.org/10.5194/esurf-12-863-2024, 2024
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Fluvial sediment fluxes increased dramatically in Taiwan during Typhoon Morakot in 2009, which produced some of the heaviest landsliding on record. We analyzed fluvial discharge and suspended sediment concentration data at 87 gauging stations across Taiwan to quantify fluvial sediment responses since Morakot. In basins heavily impacted by landsliding, rating curve coefficients sharply increased during Morakot and then declined exponentially with a characteristic decay time of <10 years.
Nil Carrion-Bertran, Albert Falqués, Francesca Ribas, Daniel Calvete, Rinse de Swart, Ruth Durán, Candela Marco-Peretó, Marta Marcos, Angel Amores, Tim Toomey, Àngels Fernández-Mora, and Jorge Guillén
Earth Surf. Dynam., 12, 819–839, https://doi.org/10.5194/esurf-12-819-2024, https://doi.org/10.5194/esurf-12-819-2024, 2024
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The sensitivity to the wave and sea-level forcing sources in predicting a 6-month embayed beach evolution is assessed using two different morphodynamic models. After a successful model calibration using in situ data, other sources are applied. The wave source choice is critical: hindcast data provide wrong results due to an angle bias, whilst the correct dynamics are recovered with the wave conditions from an offshore buoy. The use of different sea-level sources gives no significant differences.
Thomas J. Barnes, Thomas V. Schuler, Simon Filhol, and Karianne S. Lilleøren
Earth Surf. Dynam., 12, 801–818, https://doi.org/10.5194/esurf-12-801-2024, https://doi.org/10.5194/esurf-12-801-2024, 2024
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In this paper, we use machine learning to automatically outline landforms based on their characteristics. We test several methods to identify the most accurate and then proceed to develop the most accurate to improve its accuracy further. We manage to outline landforms with 65 %–75 % accuracy, at a resolution of 10 m, thanks to high-quality/high-resolution elevation data. We find that it is possible to run this method at a country scale to quickly produce landform inventories for future studies.
Eric Petersen, Regine Hock, and Michael G. Loso
Earth Surf. Dynam., 12, 727–745, https://doi.org/10.5194/esurf-12-727-2024, https://doi.org/10.5194/esurf-12-727-2024, 2024
Short summary
Short summary
Ice cliffs are melt hot spots that increase melt rates on debris-covered glaciers which otherwise see a reduction in melt rates. In this study, we show how surface runoff streams contribute to the generation, evolution, and survival of ice cliffs by carving into the glacier and transporting rocky debris. On Kennicott Glacier, Alaska, 33 % of ice cliffs are actively influenced by streams, while nearly half are within 10 m of streams.
Cited articles
Arenson, L. U. and Springman, S. M.: Triaxial constant stress and constant
strain rate tests on ice-rich permafrost samples, Can. Geotech. J., 42, 412–430, https://doi.org/10.1139/t04-111, 2005.
Aydin, A. and Basu, A.: The Schmidt hammer in rock material characterization, Eng. Geol., 81, 1–14, 2005.
Bandis, S. C., Lumsden, A. C., and Barton, N. R.: Fundamentals of rock joint
deformation, Int. J. Rock Mech. Min., 20, 249–268, 1983.
Barnes, P., Tabor, D., and Walker, J. C. F.: The friction and creep of
polycrystalline ice, P. Roy. Soc. Lond. A, 324, 127–155, 1971.
Barton, N. R.: A model study of rock-joint deformation, Int. J. Rock Mech.
Min., 9, 579–582, https://doi.org/10.1016/0148-9062(72)90010-1, 1972.
Barton, N. R.: Shear strength criteria for rock, rock joints, rockfill and rock masses: Problems and some solutions, J. Rock Mech. Geotech. Eng., 5,
249–261, https://doi.org/10.1016/j.jrmge.2013.05.008, 2013.
Barton, N. R. and Choubey, V.: The shear strength of rock joints in theory
and practice, Rock Mech., 10, 1–54, 1977.
Bavarian Agency for Digitisation, High-Speed Internet and Surveying: Digital elevation model of the Zugspitze summit area, Bavarian Agency for Digitisation, High-Speed Internet and Surveying, Munich, 2006.
Bhasin, R. and Kaynia, A. M.: Static and dynamic simulation of a 700-m high
rock slope in western Norway, Eng. Geol., 71, 213–226,
https://doi.org/10.1016/S0013-7952(03)00135-2, 2004.
Biskaborn, B. K., Smith, S. L., Noetzli, J., Matthes, H., Vieira, G.,
Streletskiy, D. A., Schoeneich, P., Romanovsky, V. E., Lewkowicz, A. G., Abramov, A., Allard, M., Boike, J., Cable, W. L., Christiansen, H. H., Delaloye, R., Diekmann, B., Drozdov, D., Etzelmüller, B., Grosse, G.,
Guglielmin, M., Ingeman-Nielsen, T., Isaksen, K., Ishikawa, M., Johansson,
M., Johannsson, H., Joo, A., Kaverin, D., Kholodov, A., Konstantinov, P.,
Kröger, T., Lambiel, C., Lanckman, J.-P., Luo, D., Malkova, G., Meiklejohn, I., Moskalenko, N., Oliva, M., Phillips, M., Ramos, M., Sannel, A. Britta K., Sergeev, D., Seybold, C., Skryabin, P., Vasiliev, A., Wu, Q.,
Yoshikawa, K., Zheleznyak, M., and Lantuit, H.: Permafrost is warming at a
global scale, Nat. Commun., 10, 264, https://doi.org/10.1038/s41467-018-08240-4, 2019.
Böckli, L., Nötzli, J., and Gruber, S.: PermaNET-BY: Untersuchung des
Permafrosts in den Bayerischen Alpen, Teilprojekt PermaNET (EU Alpine Space
Interreg IVb), Glaciology, Geomorphodynamics & Geochronology,
Department of Geography,
University of Zurich, Zürich, 60 pp., 2011.
Bray, M. T.: Secondary creep approximations of ice-rich soils and ice using
transient relaxation tests, Cold. Reg. Sci. Technol., 88, 17–36,
https://doi.org/10.1016/j.coldregions.2012.12.011, 2013.
Butkovitch, T. R.: The ultimate strength of ice, Report on the Snow, Ice and Permafrost Research Establishment Project, Res. paper 15, Corps of Engineers, U. S. Army, Wilmette, Illinois, 1954.
Cai, M., Kaiser, P. K., Uno, H., Tasaka, Y., and Minami, M.: Estimation of
rock mass deformation modulus and strength of jointed hard rock masses using
the GSI system, Int. J. Rock Mech. Min., 41, 3–19,
https://doi.org/10.1016/S1365-1609(03)00025-X, 2004.
Chang, S.-H., Lee, C.-I., and Jeon, S.: Measurement of rock fracture toughness under modes I and II and mixed-mode conditions by using disc-type
specimens, Eng. Geol., 66, 79–97, https://doi.org/10.1016/S0013-7952(02)00033-9, 2002.
Cruden, D. M.: The shapes of cold, high mountains in sedimentary rocks,
Geomorphology, 55, 249–261, https://doi.org/10.1016/S0169-555X(03)00143-0, 2003.
Davies, M. C. R., Hamza, O., Lumsden, B. W., and Harris, C.: Laboratory
measurement of the shear strength of ice-filled rock joints, Ann. Glaciol.,
31, 463–467, https://doi.org/10.3189/172756400781819897, 2000.
Davies, M. C. R., Hamza, O., and Harris, C.: The effect of rise in mean annual temperature on the stability of rock slopes containing ice-filled
discontinuities, Permafrost Periglac., 12, 137–144, https://doi.org/10.1002/ppp.378, 2001.
Deline, P., Gruber, S., Delaloye, R., Fischer, L., Geertsema, M., Giardino,
M., Hasler, A., Kirkbride, M., Krautblatter, M., Magnin, F., McColl, S.,
Ravanel, L., and Schoeneich, P.: Ice Loss and Slope Stability in High-Mountain Regions, in: Snow and Ice-Related Hazards, Risks and Disasters, Academic Press, Boston, 521–561, 2015.
Draebing, D. and Krautblatter, M.: P-wave velocity changes in freezing hard low-porosity rocks: a laboratory-based time-average model, The Cryosphere, 6, 1163–1174, https://doi.org/10.5194/tc-6-1163-2012, 2012.
Dramis, F., Govi, M., Guglielmin, M., and Mortara, G.: Mountain permafrost and slope instability in the Italian Alps. The Val Pola Landslide, Permafrost Periglac., 6, 73–81, https://doi.org/10.1002/ppp.3430060108, 1995.
Dwivedi, R. D., Soni, A. K., Goel, R. K., and Dube, A. K.: Fracture toughness
of rocks under sub-zero temperature conditions, Int. J. Rock Mech. Min., 37,
1267–1275, 2000.
Eberhardt, E., Stead, D., and Coggan, J. S.: Numerical analysis of initiation
and progressive failure in natural rock slopes – the 1991 Randa rockslide,
Int. J. Rock Mech. Min., 41, 69–87, https://doi.org/10.1016/S1365-1609(03)00076-5, 2004.
Etzelmüller, B.: Recent Advances in Mountain Permafrost Research, Permafrost Periglac., 24, 99–107, https://doi.org/10.1002/ppp.1772, 2013.
Fischer, L., Kääb, A., Huggel, C., and Noetzli, J.: Geology, glacier retreat and permafrost degradation as controlling factors of slope instabilities in a high-mountain rock wall: the Monte Rosa east face, Nat. Hazards Earth Syst. Sci., 6, 761–772, https://doi.org/10.5194/nhess-6-761-2006, 2006.
Fischer, L., Amann, F., Moore, J. R., and Huggel, C.: Assessment of periglacial slope stability for the 1988 Tschierva rock avalanche (Piz Morteratsch, Switzerland), Eng. Geol., 116, 32–43, https://doi.org/10.1016/j.enggeo.2010.07.005, 2010.
Fischer, L., Purves, R. S., Huggel, C., Noetzli, J., and Haeberli, W.: On the influence of topographic, geological and cryospheric factors on rock avalanches and rockfalls in high-mountain areas, Nat. Hazards Earth Syst. Sci., 12, 241–254, https://doi.org/10.5194/nhess-12-241-2012, 2012.
Gallemann, T., Haas, U., Teipel, U., von Poschinger, A., Wagner, B., Mahr,
M., and Bäse, F.: Permafrost-Messstation am Zugspitzgipfel: Ergebnisse
und Modellberechnungen, Geolog. Bavar., 115, 1–77, 2017.
Gambino, G. F. and Harrison, J. P.: Rock Engineering Design in Frozen and Thawing Rock. Current Approaches and Future Directions, Proced. Eng., 191, 656–665, https://doi.org/10.1016/j.proeng.2017.05.229, 2017.
Gischig, V., Amann, F., Moore, J. R., Loew, S., Eisenbeiss, H., and Stempfhuber, W.: Composite rock slope kinematics at the current Randa instability, Switzerland, based on remote sensing and numerical modeling,
Eng. Geol., 118, 37–53, https://doi.org/10.1016/j.enggeo.2010.11.006, 2011a.
Gischig, V. S., Moore, J. R., Evans, K. F., Amann, F., and Loew, S.:
Thermomechanical forcing of deep rock slope deformation. 1. Conceptual study
of a simplified slope, J. Geophys. Res.-Earth, 116, F04010, https://doi.org/10.1029/2011JF002006, 2011b.
Gischig, V. S., Moore, J. R., Keith, F. E., Amann, F., and Loew, S.:
Thermomechanical forcing of deep rock slope deformation: 2. The Randa rock
slope instability, J. Geophys. Res., 116, F04011, https://doi.org/10.1029/2011JF002007, 2011c.
Glamheden, R.: Thermo-mechanical behaviour of refrigerated caverns in hard
rock, Chalmers University of Technology, Göteborg, 2001.
Glamheden, R. and Lindblom, U.: Thermal and mechanical behaviour or refrigerated caverns in hard rock, Tunn. Undergr. Sp. Tech., 17, 341–353,
2002.
Gobiet, A., Kotlarski, S., Beniston, M., Heinrich, G., Rajczak, J., and
Stoffel, M.: 21st century climate change in the European Alps – A review, Sci. Total Environ., 493, 1138–1151, https://doi.org/10.1016/j.scitotenv.2013.07.050, 2014.
Gruber, S. and Haeberli, W.: Permafrost in steep bedrock slopes and its
temperature-related destabilization following climate change, J. Geophys. Res., 112, 1–10, https://doi.org/10.1029/2006JF000547, 2007.
Gruber, S., Hoelzle, M., and Haeberli, W.: Permafrost thaw and destabilization of Alpine rock walls in the hot summer of 2003, Geophys. Res. Lett., 31, L13504, https://doi.org/10.1029/2004GL020051, 2004.
Günzel, F. K.: Shear strength of ice-filled rock joints, in: 9th International Conference on Permafrost, 28 June–3 July 2008, Fairbanks, Alaska, 2008.
Haberkorn, A., Wever, N., Hoelzle, M., Phillips, M., Kenner, R., Bavay, M., and Lehning, M.: Distributed snow and rock temperature modelling in steep rock walls using Alpine3D, The Cryosphere, 11, 585–607, https://doi.org/10.5194/tc-11-585-2017, 2017.
Harris, C., Arenson, L. U., Christiansen, H. H., Etzelmüller, B., Frauenfelder, R., Gruber, S., Haeberli, W., Hauck, C., Hölzle, M., Humlum, O., Isaksen, K., Kääb, A., Kern-Lütschg, M. A., Lehning,
M., Matsuoka, N., Murton, J. B., Nötzli, J., Phillips, M., Ross, N.,
Seppälä, M., Springman, S. M., and Mühll, D. Vonder: Permafrost
and climate in Europe. Monitoring and modelling thermal, geomorphological and geotechnical responses, Earth-Sci. Rev., 92, 117–171,
https://doi.org/10.1016/j.earscirev.2008.12.002, 2009.
Hauck, C. and Kneisel, C. (Eds.): Applied Geophysics in Periglacial Environments, Cambridge University Press, Cambridge, 2008.
Hipp, T., Etzelmüller, B., Farbrot, H., Schuler, T. V., and Westermann, S.: Modelling borehole temperatures in Southern Norway – insights into
permafrost dynamics during the 20th and 21st century, The Cryosphere, 6,
553–571, https://doi.org/10.5194/tc-6-553-2012, 2012.
Hoek, E. and Brown, E. T.: Practical estimates of rock mass strength, Int.
J. Rock Mech. Min., 34, 1165–1186, https://doi.org/10.1016/S1365-1609(97)80069-X, 1997.
Hoek, E., Carranza-Torres, C., and Corkum, B.: Hoek-Brown failure criterion – 2002 Edition, Proceedings of the 5th North American Rock Mechanics Symposium (NARMS),
edited by: Hammah, R., Bawden, W., Curran, J., and Telesnicki, M.,
University of Toronto Press, Toronto, Ont., Canada, 1,
267–273, 2002.
Huang, D., Cen, D., Ma, G., and Huang, R.: Step-path failure of rock slopes
with intermittent joints, Landslides, 12, 911–926, https://doi.org/10.1007/s10346-014-0517-6, 2015.
Huggel, C., Zgraggen-Oswald, S., Haeberli, W., Kääb, A., Polkvoj, A., Galushkin, I., and Evans, S. G.: The 2002 rock/ice avalanche at Kolka/Karmadon, Russian Caucasus: assessment of extraordinary avalanche formation and mobility, and application of QuickBird satellite imagery, Nat. Hazards Earth Syst. Sci., 5, 173–187, https://doi.org/10.5194/nhess-5-173-2005, 2005.
Huggel, C., Salzmann, N., Allen, S., Caplan-Auerbach, J., Fischer, L., Haeberli, W., Larsen, C., Schneider, D., and Wessels, R.: Recent and future
warm extreme events and high-mountain slope stability, Philos. T. Roy. Soc. A, 368, 2435–2459, https://doi.org/10.1098/rsta.2010.0078, 2010.
Huggel, C., Allen, S., Deline, P., Fischer, L., Noetzli, J., and Ravanel, L.:
Ice thawing, mountains falling – are alpine rock slope failures increasing?,
Geol. Today, 28, 98–104, https://doi.org/10.1111/j.1365-2451.2012.00836.x, 2012.
Inada, Y. and Yokota, K.: Some studies of low temperature rock strength, Int. J. Rock Mech. Min., 21, 145–153, https://doi.org/10.1016/0148-9062(84)91532-8, 1984.
Itasca Consulting Group: UDEC – Universal Distinct Element Code, User's Manual, Minneapolis, 2019.
Jaeger, J. C., Cook, N. G., and Zimmerman, R. W.: Fundamentals of rock
mechanics, 4th edn., Blackwell Publishing Ltd, Malden, USA,
Oxford, UK,
Carlton, Australia, 2007.
Jellinek, H. H. G.: Adhesive properties of ice, J. Coll. Sci., 14, 268–280,
1959.
Jennings, J.: A mathematical theory for the calculation of the stability of
open cast mines, Symposium on the theoretical background to the planning of open pit mines, Johannesburg, Republic of South Africa, 1970.
Keuschnig, M., Krautblatter, M., Hartmeyer, I., Fuss, C., and Schrott, L.:
Automated Electrical Resistivity Tomography Testing for Early Warning in
Unstable Permafrost Rock Walls Around Alpine Infrastructure, Permafrost
Periglac., 28, 158–171, https://doi.org/10.1002/ppp.1916, 2017.
Kodama, J., Goto, T., Fujii, Y., and Hagan P.: The effects of water content,
temperature and loading rate on strength and failure process of frozen rocks, Int. J. Rock Mech. Min., 62, 1–13, 2013.
Körner, H. and Ulrich, R.: Geologische und felsmechanische Untersuchungen für die Gipfelstation der Seilbahn Eibsee-Zugspitze, Geol. Bavar., 55, 404–421, 1965.
Krautblatter, M., Verleysdonk, S., Flores-Orozco, A. and Kemna, A.: Temperature-calibrated imaging of seasonal changes in permafrost rock walls by quantitative electrical resistivity tomography (Zugspitze, German/Austrian Alps), J. Geophys. Res.-Earth, 115, 1–15, 2010.
Krautblatter, M., Huggel, C., Deline, P., and Hasler, A.: Research Perspectives on Unstable High-alpine Bedrock Permafrost. Measurement,
Modelling and Process Understanding, Permafrost Periglac., 23, 80–88,
https://doi.org/10.1002/ppp.740, 2012.
Krautblatter, M., Funk, D., and Günzel, F. K.: Why permafrost rocks become unstable: a rock-ice-mechanical model in time and space, Earth Surf.
Proc. Land., 38, 876–887, 2013.
Kulatilake, P. H. S. W., Ucpirti, H., Wang, S., Radberg, G., and Stephansson,
O.: Use of the distinct element method to perform stress analysis in rock
with non-persistent joints and to study the effect of joint geometry parameters on the strength and deformability of rock masses, Rock Mech. Rock
Eng., 25, 253–274, https://doi.org/10.1007/BF01041807, 1992.
Kveldsvik, V., Einstein, H. H., Nilsen, B., and Blikra, L. H.: Numerical Analysis of the 650,000 m2 Åknes Rock Slope based on Measured
Displacements and Geotechnical Data, Rock Mech. Rock Eng., 42, 689–728, https://doi.org/10.1007/s00603-008-0005-1, 2008.
Magnin, F., Krautblatter, M., Deline, P., Ravanel, L., Malet, E., and Bevington, A.: Determination of warm, sensitive permafrost areas in near-vertical rockwalls and evaluation of distributed models by electrical
resistivity tomography, J. Geophys. Res.-Earth, 120, 745–762,
https://doi.org/10.1002/2014JF003351, 2015.
Mamot, P., Weber, S., Schröder, T., and Krautblatter, M.: A temperature-
and stress-controlled failure criterion for ice-filled permafrost rock joints, The Cryosphere, 12, 3333—3353, https://doi.org/10.5194/tc-12-3333-2018, 2018.
Mamot, P., Weber, S., Lanz, M., and Krautblatter, M.: Brief communication: The influence of mica-rich rocks on the shear strength of ice-filled
discontinuities, The Cryosphere, 14, 1849–1855, https://doi.org/10.5194/tc-14-1849-2020, 2020.
Marinos, P. and Hoek, E.: Gsi: A Geologically Friendly Tool for Rock Mass
Strength Estimation, in: ISRM International Symposium, Int. Soc. Rock Mech. Rock Eng., Melbourne, Australia, 2000.
Marmy, A., Rajczak, J., Delaloye, R., Hilbich, C., Hoelzle, M., Kotlarski, S., Lambiel, C., Noetzli, J., Phillips, M., Salzmann, N., Staub, B., and Hauck, C.: Semi-automated calibration method for modelling of mountain permafrost evolution in Switzerland, The Cryosphere, 10, 2693–2719,
https://doi.org/10.5194/tc-10-2693-2016, 2016.
Mejía Camones, L. A., Vargas, E. D. A., de Figueiredo, R. P., and
Velloso, R. Q.: Application of the discrete element method for modeling of
rock crack propagation and coalescence in the step-path failure mechanism, Eng. Geol., 153, 80–94, https://doi.org/10.1016/j.enggeo.2012.11.013, 2013.
Mellor, M.: Mechanical properties of rocks at low temperatures, in: 2nd International Conference on Permafrost, 13–28 July 1973, Yakutsk, Siberia, 1973.
Mergili, M., Jaboyedoff, M., Pullarello, J., and Pudasaini, S. P.: Back
calculation of the 2017 Piz Cengalo–Bondo landslide cascade with r.avaflow:
what we can do and what we can learn, Nat. Hazards Earth Syst. Sci., 20,
505–520, https://doi.org/10.5194/nhess-20-505-2020, 2020.
Miller, H.: Der Bau des westlichen Wettersteingebirges, Z. Deutsch.
Geolog. Gesell., 113, 409–425, 1962.
Moore, J. R., Gischig, V., Katterbach, M., and Loew, S.: Air circulation in
deep fractures and the temperature field of an alpine rock slope, Earth Surf. Proc. Land., 36, 1985–1996, https://doi.org/10.1002/esp.2217, 2011.
Murton, J., Kuras, O., Krautblatter, M., Cane, T., Tschofen, D., Uhlemann, S., Schober, S., and Watson, P.: Monitoring rock freezing and thawing by novel geoelectrical and acoustic techniques, J. Geophys. Res.-Eart, 121, 2309–2332, https://doi.org/10.1002/2016JF003948, 2016.
Myhra, K. S., Westermann, S., and Etzelmüller, B.: Modelled Distribution
and Temporal Evolution of Permafrost in Steep Rock Walls Along a Latitudinal
Transect in Norway by CryoGrid 2D, Permafrost Periglac., 28, 172–182,
https://doi.org/10.1002/ppp.1884, 2017.
Nötzli, J.: Modeling transient three-dimensional temperature fields in mountain permafrost, Dissertation, University of Zurich, Zurich, 2008.
Nötzli, J. and Gruber, S.: Transient thermal effects in Alpine permafrost,
The Cryosphere, 3, 85–99, https://doi.org/10.5194/tc-3-85-2009, 2009.
Nötzli, J., Gruber, S., Kohl, T., Salzmann, N., and Haeberli, W.: Three-dimensional distribution and evolution of permafrost temperatures in idealized high-mountain topography, J. Geophys. Res.-Earth, 112, F02S13, https://doi.org/10.1029/2006JF000545, 2007.
Nötzli, J., Gruber, S., and von Poschinger, A.: Modellierung und Messung von Permafrosttemperaturen im Gipfelgrat der Zugspitze, Deutschland, Geogr. Helv., 65, 113–123, https://doi.org/10.5194/gh-65-113-2010, 2010.
Nötzli, J., Pellet, C., and Staub, B. (Eds.): PERMOS 2019, Permafrost in Switzerland 2014/2015 to 2017/2018, Glaciological Report (Permafrost) No. 16–19, Cryospheric Commission of the Swiss Academy of Sciences, 104 pp., https://doi.org/10.13093/permos-rep-2019-16-19, 2019.
Phillips, M., Wolter, A., Lüthi, R., Amann, F., Kenner, R., and Bühler, Y.: Rock slope failure in a recently deglaciated permafrost rock
wall at Piz Kesch (Eastern Swiss Alps), February 2014, Earth Surf. Proc. Land., 42, 426–438, https://doi.org/10.1002/esp.3992, 2017.
Plaesken, R., Keuschnig, M., and Krautblatter, M.: Permafrost rocks and
high-alpine infrastructure. Interrelated, interconnected, interacting, Geomech. Tunnel., 13, 628–633, https://doi.org/10.1002/geot.202000028, 2020.
Poisel, R. and Preh, A.: Rock slope initial failure mechanisms and their
mechanical models, Felsbau, 22, 40–45, 2004.
Ravanel, L. and Deline, P.: La face ouest des Drus (massif du Mont-Blanc):
évolution de l'instabilité d'une paroi rocheuse dans la haute montagne alpine depuis la fin du petit age glaciaire, Géomorphologie, 4, 261–272, 2008.
Ravanel, L. and Deline, P.: Climate influence on rockfalls in high-Alpine
steep rockwalls. The north side of the Aiguilles de Chamonix (Mont Blanc
massif) since the end of the `Little Ice Age', Holocene, 21, 357–365,
https://doi.org/10.1177/0959683610374887, 2011.
Ravanel, L. and Deline, P.: Rockfall Hazard in the Mont Blanc Massif Increased by the Current Atmospheric Warming, in: Engineering Geology for
Society and Territory – Volume 1: Climate Change and Engineering Geology,
Springer International Publishing, Cham, 425–428, 2015.
Ravanel, L., Allignol, F., Deline, P., Gruber, S., and Ravello, M.: Rock falls in the Mont Blanc Massif in 2007 and 2008, Landslides, 7, 493–501,
2010.
Rentsch, W. and Krompholz, G.: Zur Bestimmung elastischer Konstanten durch
Schallgeschwindigkeitsmessungen, Bergakademie – Zeitschrift für Bergbau,
Hüttenwesen und verwandte Wissenschaften, 13, 492–504, 1961.
Sanderson, T. J. O.: Ice Mechanics. Risks to offshore structures, Graham & Trotman, London, 1988.
Sass, O.: Rock moisture measurements. Techniques, results, and implications for weathering, Earth Surf. Proc. Land., 30, 3, 359–374, https://doi.org/10.1002/esp.1214, 2005.
Scandroglio, R., Draebing, D., Offer, M., and Krautblatter, M.: 4D quantification of alpine permafrost degradation in steep rock walls using a laboratory-calibrated electrical resistivity tomography approach, Near Surf. Geophys., 19, 241–260, https://doi.org/10.1002/nsg.12149, 2021.
Schulson, E. M. and Duval, P.: Creep and Fracture of Ice, Cambridge University Press, Cambridge, 2009.
Stead, D., Eberhardt, E., and Coggan, J. S.: Developments in the characterization of complex rock slope deformation and failure using numerical modelling techniques, Eng. Geol., 83, 217–235,
https://doi.org/10.1016/j.enggeo.2005.06.033, 2006.
Supper, R., Ottowitz, D., Jochum, B., Römer, A., Pfeiler, S., Kauer, S.,
Keuschnig, M., and Ita, A.: Geoelectrical monitoring of frozen ground and
permafrost in alpine areas. Field studies and considerations towards an improved measuring technology, Near Surf. Geophys., 12, 93–115,
https://doi.org/10.3997/1873-0604.2013057, 2014.
Tipler, P. A. and Mosca, G.: Physik für Wissenschaftler und Ingenieure,
in: Springer Spektrum, 7th Edn., Springer, Berlin, 2015.
Ulrich, R. and King, L.: Influence of mountain permafrost on construction in
the Zugspitze mountains, Bavarian Alps, Germany, 6th International Conference on Permafrost, 5–9 July 1993, Beijing, China, Chinese Soc. Glaciol. and Geocryol., 1993.
Ulusay, R.: The ISRM Suggested Methods for Rock Characterization, Testing
and Monitoring: 2007–2014, Springer International Publishing, Cham, Heidelberg, New York, Dordrecht, London, 2015.
Ulusay, R. and Karakul, H.: Assessment of basic friction angles of various rock types from Turkey under dry, wet and submerged conditions and some
considerations on tilt testing, Bull. Int. Assoc. Eng. Geol., 75, 1683–1699,
https://doi.org/10.1007/s10064-015-0828-4, 2016.
Voigtländer, A., Scandroglio, R., and Krautblatter, M.: Entwicklung
geotechnischer Felsparameter des Kitzsteinhorner Kalkglimmerschiefers,
Abschlussbericht zum Forschungs- und Entwicklungsvertrag der TU München
und AlpS-GmbH, Munich, 2014.
Walter, F., Amann, F., Kos, A., Kenner, R., Phillips, M., de Preux, A., Huss, M., Tognacca, C., Clinton, J., Diehl, T., and Bonanomi, Y.: Direct observations of a three million cubic meter rock-slope collapse with almost
immediate initiation of ensuing debris flows, Geomorphology, 351, 106933,
https://doi.org/10.1016/j.geomorph.2019.106933, 2020.
Weber, S., Beutel, J., Da Forno, R., Geiger, A., Gruber, S., Gsell, T., Hasler, A., Keller, M., Lim, R., Limpach, P., Meyer, M., Talzi, I., Thiele,
L., Tschudin, C., Vieli, A., Vonder Mühll, D., and Yücel, M.: A decade of detailed observations (2008–2018) in steep bedrock permafrost at
the Matterhorn Hörnligrat (Zermatt, CH), Earth Syst. Sci. Data, 11,
1203–1237, https://doi.org/10.5194/essd-11-1203-2019, 2019.
Welkner, D., Eberhardt, E., and Hermanns, R. L.: Hazard investigation of the
Portillo Rock Avalanche site, central Andes, Chile, using an integrated field mapping and numerical modelling approach, Eng. Geol., 114, 278–297,
https://doi.org/10.1016/j.enggeo.2010.05.007, 2010.
Wyllie, D. C.: Rock slope engineering, in: Civil applications, Taylor & Francis Group, Boca Raton, 2018.
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Short summary
The mechanical response of permafrost degradation on high-mountain rock slope stability has not been calculated in a numerical model yet. We present the first approach for a model with thermal and mechanical input data derived from laboratory and field work, and existing concepts. This is applied to a test site at the Zugspitze, Germany. A numerical sensitivity analysis provides the first critical stability thresholds related to the rock temperature, slope angle and fracture network orientation.
The mechanical response of permafrost degradation on high-mountain rock slope stability has not...
