Robert Kenner
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Progressive destabilization of a freestanding rock pillar in permafrost on the Matterhorn (Swiss Alps): Hydro-mechanical modeling and analysis Open
Permafrost rock slopes have been extensively studied, yet the thermal and mechanical dynamics of the transition zone between the permafrost and overlying seasonally frozen layers warrant further investigation. This study investigates the p…
Formation phases and structural failure of a landslide compartment at Brienz/Brinzauls, Switzerland Open
This study analyses the formation of a surficial compartment of the Brienz/Brinzauls deep-seated landslide in eastern Switzerland and reveals the process transition leading to its failure. Based on point-cloud-derived, high-resolution 3D d…
Progressive destabilization of a freestanding rock pillar in permafrost on the Matterhorn (Swiss Alps): Field observations, laboratory experiments and mechanical modeling Open
Permafrost rock slopes have been extensively studied, yet the thermal and mechanical dynamics of the transition zone between the permafrost and overlying seasonally frozen layers warrant further investigation. This study investigates the p…
How percolating snowmelt water progressively destabilizes a free-standing rock pillar on permafrost: Field observations from Matterhorn (CH), laboratory experiments and mechanical modeling Open
Permafrost rock slopes have been extensively studied, but seasonally frozen zones are often neglected. However, these rocks are subject to progressive destabilization driven by complex thermal and mechanical interactions. Their thickening …
Modelling the influence of rock mechanical properties and rock structure on the 2023 Brienz “Insel” failure Open
In June 2023, the "Insel" compartment of the Brienz/Brinzauls landslide system in Switzerland failed, mobilising approximately 1.9 million m³ of rock and almost reaching the village of Brienz/Brinzauls. As the event occurred at night,…
Short-term cooling, drying, and deceleration of an ice-rich rock glacier Open
Observations in the European Alps show a long-term rise in rock glacier velocities, which is often associated with increased air and ground temperatures and, more recently, water content. Long-term rock glacier acceleration is superimposed…
Response of alpine ground temperatures to a rising atmospheric 0 °C isotherm in the period 1955–2021 Open
Ground temperatures in alpine terrain vary considerably over short distances, particularly due to differences in elevation and incoming short-wave radiation but also snow and surface conditions. To allow for direct cross-site, interregiona…
Unveiling cooling, drying and deceleration of a rock glacier during a warm period through ground temperature, piezometer and cross-borehole ERT data Open
Rock glacier monitoring has revealed a long-term increase in rock glacier surface velocity in the European Alps, often associated with increased air and ground temperatures as well as water content. The long-term acceleration of rock glaci…
Short-term cooling, drying and deceleration of an ice-rich rock glacier Open
Observations in the European Alps show a long-term rise in rock glacier velocities, which is often associated with increased air and ground temperatures and, more recently, water content. Long term rock glacier acceleration is superimposed…
Supplementary material to "Short-term cooling, drying and deceleration of an ice-rich rock glacier" Open
Table S2: Statistical key figures for the meteorological variables air temperature (TA), rainfall (RA), height of snow (HS), and snow water equivalent (SWE) of the two IMIS stations Motta Bianca (BER2), Puoz Bass (BER3) and the Schafberg w…
View article: The potential of point clouds for the analysis of rock kinematics in large slope instabilities: examples from the Swiss Alps: Brinzauls, Pizzo Cengalo and Spitze Stei
The potential of point clouds for the analysis of rock kinematics in large slope instabilities: examples from the Swiss Alps: Brinzauls, Pizzo Cengalo and Spitze Stei Open
Lidar measurements and UAV photogrammetry provide high-resolution point clouds well suited for the investigation of slope deformations. Today, however, the information contained in these point clouds is rarely fully exploited. This study s…
Changes in Ground Temperature and Dynamics in Mountain Permafrost in the Swiss Alps Open
Rising air temperatures and increasingly intense precipitation are being observed in the Swiss Alps. These changes strongly affect the evolution of the temperature regime and the dynamics of mountain permafrost. Changes occur at different …
View article: A Material Point Method for Alpine Mass Movements
A Material Point Method for Alpine Mass Movements Open
<p>Gravitational mass movements pose a threat to the population of numerous mountainous regions around the globe. Climate change affects these processes and their related hazards by influencing their triggering, flow and deposition m…
A Comparison of Frequency Domain Electro-Magnetometry, Electrical Resistivity Tomography and Borehole Temperatures to Assess the Presence of Ice in a Rock Glacier Open
Alpine permafrost is currently warming, leading to changes such as active layer deepening and talik formation. Frequency domain electro-magnetometry (FDEM) measurements were tested as a simple and efficient method to investigate ground cha…
Review on Current glacier recession causes significant rockfall increase: The immediate paraglacial response of deglaciating cirque walls Open
This valuable study and the Phanatic dataset provide new insights in a poorly investigated research field
The use of Frequency Domain Electro-magnetometry for the characterization of permafrost active layers: case studies in the Swiss Alps Open
<p>The characterization of the active layer (AL) in mountain permafrost is an important part of monitoring climate change effects in periglagical environments and may help to determine potential slope instability. Permafrost affects …
Why rock glacier deformation velocities correlate with both ground temperatures and water supply at multiple temporal scales Open
<p>Recent studies have highlighted water supply as a driving factor for rock glacier deformation velocities. In parallel, numerous observations of correlating mean annual air- or ground temperatures and rock glacier velocities have b…
Direct observations of a three million cubic meter rock-slope collapse with almost immediate initiation of ensuing debris flows Open
Catastrophic collapse of large rock slopes ranks as one of the most hazardous natural phenomena in mountain landscapes. The cascade of events, from rock-slope failure, to rock avalanche and the near-immediate release of debris flows has no…
Distinguishing ice-rich and ice-poor permafrost to map ground temperatures and ground ice occurrence in the Swiss Alps Open
Mountain permafrost is invisible, and mapping it is still a challenge. Available permafrost distribution maps often overestimate the permafrost extent and include large permafrost-free areas in their permafrost zonation. In addition, the r…
Distinguishing ice-rich and ice-poor permafrost to map ground temperatures and -ice content in the Swiss Alps Open
A new countrywide permafrost distribution map of Switzerland is presented, indicating ground temperatures and ice content. The new representation of ground temperatures is achieved by distinguishing ice-poor and ice-rich permafrost in the …
Permafrost and Ground Ice Map of Switzerland Open
Save the layer file (.lyr) together with the other files (Shapefiles) in a common folder and load the layer file in a GIS or geoviewer application to see the map. If your GIS-Application does not support .lyr files you can define the visua…
Permafrost and Ground Ice Map of Switzerland Open
Save the layer file (.lyr) together with the other files (Shapefiles) in a common folder and load the layer file in a GIS or geoviewer application to see the map. If your GIS-Application does not support .lyr files you can define the visua…
Photogrammetric snow depth mapping: evaluation of different platforms and sensors Open
Until today, snow depth data is mostly estimated based on point measurements, either collected manually or at automated weather stations. New photogrammetric technologies to map the snow depth distribution spatially continuous over larger …
SUBAQUATIC DIGITAL ELEVATION MODELS FROM UAV-IMAGERY Open
The paper presents an approach for the generation of digital elevation models (DEMs) of underwater areas from aerial images. Standard software-products do not provide the possibility to measure correctly through refractive interfaces, such…
Permafrost And Ground Ice Map Of Switzerland Open
This KML file contains a countrywide permafrost distribution map of Switzerland, indicating ground temperatures and ice content. Permafrost occurrence is represented by 3 clearly defined classes: Zone1: permafrost, Zone 2: isolated permafr…