A5101452410- Landslides and related hazards
- Fire effects on ecosystems
- Cryospheric studies and observations
- Hydrology and Sediment Transport Processes
- Flood Risk Assessment and Management
- Soil erosion and sediment transport
- Climate change and permafrost
- Soil and Unsaturated Flow
- Geotechnical Engineering and Analysis
- Winter Sports Injuries and Performance
- Hydrology and Watershed Management Studies
- earthquake and tectonic studies
- Ecology, Conservation, and Geographical Studies
- Geophysical Methods and Applications
- European history and politics
- Seismology and Earthquake Studies
- Geology and Paleoclimatology Research
- Remote Sensing and LiDAR Applications
- Dam Engineering and Safety
- Sociology and Education Studies
- Peatlands and Wetlands Ecology
- Anomaly Detection Techniques and Applications
- Granular flow and fluidized beds
- Aquatic Ecosystems and Phytoplankton Dynamics
- Groundwater flow and contamination studies
Swiss Federal Institute for Forest, Snow and Landscape Research
2008-2023
Debris flow is a common process in the Swiss Alps and other mountainous parts of world. The understanding debris-flow behaviour essential to assess hazards they present. An important approach towards improving knowledge processes gathering real-time data by observation stations. Observation stations were established three debris prone watersheds equipped with video cameras, ultrasonic devices, radar device, geophones, rain gauges. In 2000, four significant flows observed. provided useful...
Abstract. Predicting potential deposition areas of future debris-flow events is important for engineering hazard assessment in alpine regions. To this end, numerical simulation models are commonly used tools. However, knowledge appropriate model parameters essential but often not available. In study we use two models, RAMMS–DF (rapid mass movement system–debris-flow) and DAN3D (dynamic analysis landslides three dimensions), to back-calculate well-documented Austria compare the range...
Abstract Surging debris flows are among the most destructive natural hazards, and elucidating interaction between coarse‐grained fronts trailing liquefied slurry is key to understanding these flows. Here, we describe application of high‐resolution high‐frequency 3D LiDAR data explore dynamics a flow at Illgraben, Switzerland. The measurements facilitate automated detection features on surface, construction depth velocity fields through time. Measured surface velocities (2–3 m s −1 ) faster...
Abstract. Predicting potential deposition areas of future debris-flow events is important for engineering hazard assessment in alpine regions. For this, numerical simulation models are commonly used tools. However, knowledge appropriate model parameters essential but often not available. In this study we use two models, RAMMS-DF (Rapid Mass Movement System – Debris Flow) and DAN3D (Dynamic Analysis Landslides Three Dimensions), to back-calculate well-documented Austria compare the range...
Debris flows are fast mass movements formed by a mix of water and solid materials, which occur in steep torrents, source high risks for human settlements. Geophones widely used to detect the ground vibration induced passing debris flows. However, recording geophone signals usually requires storing huge amount data, leads problems storage capacity power consumption. This paper presents method transform simplify measured geophones. The key input parameter is velocity threshold, removes seismic...
Debris flows are fast-moving, destructive mass transport processes that frequently occur in mountainous regions, posing severe threats to infrastructure and communities. Despite extensive research on debris flows, high-resolution velocity flow depth data from full-scale natural events test parameterize empirical equations remain scarce. This study utilizes pulse-Doppler (PD) radar continuously track debris-flow velocities at Illgraben, Switzerland, during the 2022 season. We analysed three...
Abstract. Debris flows affect people and infrastructure around the world, as a result, many numerical models modelling approaches have been developed to simulate their impacts. Observations from instrumented debris-flow channels show that variability in inflow depth, velocity, discharge real debris is much higher than what typically used simulations. However, effect of this natural on model outputs not well known. In study, we examine effects using complex time series within single-phase...
Abstract Debris flows are a hazard in mountainous regions. Cost‐effective, long‐term studies of debris‐flow torrents, however, rare, leading to uncertainties assessment and prevention. Here, we address the question whether cost‐effective remote sensing techniques can be applied for mountain torrents possibly further gather accurate, information on evolution catchment. Torrents prone debris often devoid vegetation near channel area hence well captured with photogrammetrically derived methods...
The history of the Prussian political police, particularly during transition period between Weimar Republic and Third Reich, has not yet been studied systematically, although it played an important perhaps crucial role in national socialist seizure power. One reason for this lack critical analysis is existence a number publications personal accounts whose shortcomings have hitherto gone unnoticed. Chief among these are memoirs first Gestapo chief, Rudolf Diels. Although book based more on...
Abstract. The erosion of and depositions on channel bed surfaces are instrumental to understanding debris flow processes. We present an overview existing field methods highlight their respective advantages disadvantages. Terrestrial laser scanning (TLS), airborne (ALS), sensors, cross sections (CS) geomorphological mapping compared. Additionally, two these approaches (i.e. TLS CS) tested applied in the reaches torrent catchments. results comparison indicate that associated with variable...
The granular rock material within a debris flow experiences jerk (change in acceleration) as it runs over rough basal bed or collides with sidewalls. This creates pressure – the so-called dispersive which acts to change configuration of mass and therefore frictional relationship boundary. Normal pressures are no longer hydrostatic fluctuations created fluid phase. In this paper we formulate relationships between internal shear work, free mechanical energy, configurational changes flow. We...
In-situ measurements of debris-flow properties are crucial for understanding their movement mechanisms and quantifying impact. Here we present the first results a field monitoring campaign, at Illgraben, Switzerland, to measure parameters using high temporal (10 Hz) spatial resolution LiDAR sensors several locations along channel. The point cloud data is projected onto video images enhance visualization aid in interpretation measurements. We process machine vision deep learning based...