Dr. Perry Bartelt

Function

Groupleader, Senior Scientist

Alpine environment and natural hazards

RAMMS Rapid Mass Movements

Contact

bartelt(at)slfto make life hard for spam bots.ch

+41 81 417 02 51+41 81 417 02 51

WSL Institute for Snow and Avalanche Research SLF
Flüelastrasse 11
7260 Davos Dorf

Site

Davos Da D 2 09

FURTHER INFORMATION

Projects

Safe roads

In this project we develop and combine cutting-edge remote sensing technology with snow depth distribution and RAMMS avalanche modelling. With this we want to improve the decision base for road safety in the Dischma valley in Davos.

Dynamics of the rock slope instability "Spitze Stei"

The rock slope instability "Spitze Stei" constitutes a risk for the touristic infrastructure around lake Öschinensee and the village Kandersteg. Our project task will investigate the mechanisms which led to the slope destabilisation and analyse scenarios for slope failures.

CCAMM II: Cascading Processes

The CCAMM cluster "Cascading Processes"develops knowledge and models that can be used to anticipate future cascading events. At "Spitze Stei", Kandersteg BE, we study the cascading processes: rock slope instability, debris flow, rock/snow avalanches and lake outburst floods.

Rock / ice avalanches in India

Modelling destructive rock / ica avalanches in Uttarakhand, India

Kleiner Piz Buin: experimental investigations

In July 2020, the SLF identified a highly fissured and deformed potential rockfall mass with an incipient crest near the summit of Kleiner Piz Buin.

Gefahrenhinweiskarten Lawinen

Flächendeckende Gefahrenhinweiskarten für Lawinen für Graubünden und Liechtenstein.

Rockfall barrier tests in natural terrain

WSL and its industrial partner GEOBRUGG are testing a new rockfall barrier using large-scale tests in natural terrain.

Larger and more frequent debris flows in future?

This project will combine field monitoring of debris flow sites, laboratory and field experiments, two-phase granular flow mechanics and numerical simulations to assess how debris flow mitigation must evolve in future.

Determining the Insurance Value of Ecosystems

The project expands the scientific bases for insurance services of forests and defines their value from the population’s perspective. In this way we can enhance the awareness of human dependence on natural resources and foster their inclusion in political, economic and individual decision-making.

Rockfall Experiments

The SLF has developed software capable of simulating rockfalls. The computer model is being continuously aligned more closely with reality by way of experiments, such as those recently conducted on Spitsbergen.

EPIC

Snow avalanche interaction with forests is evaluated in three mountains ranges of the world: the Andes (Chile), the Himalayas (Nepal) and the Alps (Switzerland). We aim at better integrating forest effects in existing avalanche dynamics models for risk analyses, as well as deducing adapted strategies for forest management in different mountain ecosystems.

Chilean copper mines

An avalanche simulation model is helping Chilean safety authorities to decide when to close a road that permits access to copper mines.

Rockfall nets

Thanks to a new SLF computer model, industry will be able to design rockfall nets more cost-effectively and efficiently in future.

Forests and avalanches

Trees are capable of slowing down and stopping avalanches before they can endanger settlements and their inhabitants. The SLF is investigating the complex interaction that takes place between forest structure, snow properties and the terrain.

Forests and type of avalanche

A study shows how powder avalanches and wet-snow avalanches have widely differing impacts on trees in avalanche-protection forests.

Rock-shape

A key factor determining the trajectories of rockfalls is rock-shape. But which rock-shapes are the most dangerous? Using rockfall experiments with special motion sensors and a new rockfall model that can simulate real rock-shapes; we are beginning to answer these questions.

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Publications WSL

Scientific publication article peer reviewed

Gorynina, O.; Bartelt, P., 2023: Powder snow avalanche impact on hanging cables. International Journal of Impact Engineering, 173: 104422 (11 pp.). doi: 10.1016/j.ijimpeng.2022.104422

Ringenbach, A.; Bebi, P.; Bartelt, P.; Rigling, A.; Christen, M.; Bühler, Y.; Stoffel, A.; Caviezel, A., 2022: Modeling deadwood for rockfall mitigation assessments in windthrow areas. Earth Surface Dynamics, 10, 6: 1303-1319. doi: 10.5194/esurf-10-1303-2022

Ringenbach, A.; Stihl, E.; Bühler, Y.; Bebi, P.; Bartelt, P.; Rigling, A.; Christen, M.; Lu, G.; Stoffel, A.; Kistler, M.; Degonda, S.; Simmler, K.; Mader, D.; Caviezel, A., 2022: Full-scale experiments to examine the role of deadwood in rockfall dynamics in forests. Natural Hazards and Earth System Sciences, 22, 7: 2433-2443. doi: 10.5194/nhess-22-2433-2022

Bühler, Y.; Bebi, P.; Christen, M.; Margreth, S.; Stoffel, L.; Stoffel, A.; Marty, C.; Schmucki, G.; Caviezel, A.; Kühne, R.; Wohlwend, S.; Bartelt, P., 2022: Automated avalanche hazard indication mapping on a statewide scale. Natural Hazards and Earth System Sciences, 22, 6: 1825-1843. doi: 10.5194/nhess-22-1825-2022

Miller, A.; Sirguey, P.; Morris, S.; Bartelt, P.; Cullen, N.; Redpath, T.; Thompson, K.; Bühler, Y., 2022: The impact of terrain model source and resolution on snow avalanche modeling. Natural Hazards and Earth System Sciences, 22, 8: 2673-2701. doi: 10.5194/nhess-22-2673-2022

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Further scientific publications

Bühler, Y.; Bebi, P.; Christen, M.; Margreth, S.; Stoffel, A.; Stoffel, L.; Marty, C.; Bartelt, P.; Kühne, R., 2022: Automatisch berechnete Gefahrenhinweiskarten für Lawinen. Automated avalanche hazard indication mapping. Wildbach- und Lawinenverbau, 86, 190: 88-95.

Peter, B.; Bartelt, P.; Rixen, C., 2022: Avalanches and other snow movements. In: Wohlgemuth, T.; Jentsch, A.; Seidl, R. (eds), 2022: Disturbance ecology. Cham, Springer. 195-210. doi: 10.1007/978-3-030-98756-5_9

Rockfall barrier service loads for rock impacts with spin. Theory and experiments

The specification of realistic service loads for flexible rockfall barriers is an on-going concern in rockfall engineering. The purpose of this document is to present results of full-scale experiments of rockfall barriers in natural terrain.

WSL Berichte 125

2022

Download

Caviezel, A.; Margreth, S.; Ivanova, K.; Sovilla, B.; Bartelt, P., 2021: Powder snow impact of tall vibrating structures. In: Papadrakakis, M.; Fragiadakis, M. (eds), 2021: Compdyn 2021 proceedings. COMPDYN 2021. 8th ECCOMAS thematic conference on computational methods in structural dynamics and earthquake engineering, Athens, Greece. 19112 (13 pp.).

Caviezel, A.; Sanchez, M.A.; Lu, G.; Christen, M.; Bartelt, P.; Wendeler, C.; Lanter, A., 2020: Full scale testing of rockfall nets under realistic conditions. In: Li, C.C.; Ødegaard, H.; Høien, A.H.; Macias, J. (eds), 2020: ISRM international symposium - EUROCK 2020. ISRM international symposium Eurock 2020 - hard rock enigeering, Trondheim, Norway. (7 pp.).

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Magazine article and brochures

Miller, A.; Sirguey, P.; Morris, S.; Bartelt, P.; Cullen, N.; Buhler, Y., 2021: Avalanche modelling on the Milfoard Road. New Zealand Avalanche Dispatch, 43-47.

Bast, A.; Phillips, M.; Bründl, M.; Stähli, M.; Bartelt, P.; Ortner, G.; Schweizer, J., 2020: Die Auswirkungen des Klimawandels auf alpine Massenbewegungen: das WSL Forschungsprogramm CCAMM. FAN Agenda, Fachleute Naturgefahren Schweiz, 15-17.

Ottmer, B.; Bartelt, P.; Meier, L., 2016: Von Grossversuchs- zu Pop-up-Anlagen. WSL-Magazin Diagonal, 10-13.

Ottmer, B.; Bartelt, P.; Meier, L., 2016: From large-scale experiments to pop-up tests. WSL magazine Diagonal, 10-13.

Birkeland, K.; Bartelt, P.; Meiners, T., 2008: Avalanche survival strategies for different parts of a flowing avalanche: merging theory and practice to increase your odds. Avalanche Review, 26, 3: 12-13, 27.

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