Verhalten abseits der Piste
Avalanche Accidents
Wissenswertes über Lawinen
Literatur
Kernteam Lawinenausbildung
Projects
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Research projects
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Swiss Experiment
The Swiss Experiment (SwissEx) is an initiative of the Competence Centre Environment and Sustainability (CCES), headed by WSL/SLF which has been created to provide a platform for large scale sensor network deployment and information retrieval and exploitation.
Snow cover and permafrost in the alps: numerical simulation of the interaction processes
The snow cover plays a central role on the occurrence of permafrost. In order to better understand the interaction processes between snow cover and permafrost, researchers investigated the influence of different parameters on soil temperature and composition of snow cover.
Snowpack
The operational model of the Swiss avalanche warning service is available as an integrated software package.
Measuring and modelling spatial variability of snowpack stability
Field measurements of the snowpack structure and stability with the aim to identify the causes spatial variability. Comparing modelled patterns obtained by the model ALPINE3D with field data in order to assess the model accuracy and to determine the causes of spatial variability. Relate modelled output to avalanche activity and predicted avalanche danger degree.
Extremes
EXTREMES is a project within the ETH domain, which has the goal to improve the understanding of rare events. SLF participates in the project in order to better understand the spatial distribution, and natural variability of heavy snowfall events
Feature Formation on the Snow Surface due to Interactions with the Atmospheric Surface Layer
Measurement of the quantitative formation of surface hoar and characteristics of the upper snow layer. The data will be related to the corresponding meteorological conditions particularly to turbulent fluxes.
Snowpack in Antarctica
Modelling of the Antarctic snow pack with SNOWPACK to study the mass and energy exchange processes. A bibliographic research compile the actual knowledge about snow modelling in Antarctica.
ALPINE-3D
Alpine3D is a spatially distributed (surface), three dimensional (atmospheric) model for analyzing and predicting dynamics of snow-dominated surface processes in mountainous topography. It includes models for snow cover, vegetation and soil, snow transport, radiation transfer and runoff which can be enabled or disabled on demand. The model supports a variety of input options including interpolation of meteorological weather stations, input from a meteorological model or from remote sensing data (MeteoIO) and has been parallelized in order to run on computing grids or clusters.
Windfield and snowdrift modelling over complex mountainous terrain
The transport of snow by wind is an important factor for avalanche danger as well as ecology and hydrology in mountainous environments. Investigations of airflow and snowdrift are carried out using field data and model. Field experiment for airflow and snow deposition/accumulation studies were held at the Gaudergrat ridge, located near Davos, accumulation and erosion studies.
Turbulente Grenzschichtströmungen über Neuschneeoberflächen
Wind und Schnee stehen über eine komplexe Wechselwirkung miteinander in Beziehung. Der Wind transportiert Schnee und beeinflusst dabei Schneekristall- und Schneedeckeneigenschaften. Bei der Verfrachtung und Deposition von Schnee kommt es darüber hinaus zur Bildung grossskaliger Oberflächenrauhigkeitselemente wie Wechten, Dünen, Sastrugi oder Riffeln. Diese üben im Gegenzug wiederum einen starken Einfluss auf den bodennahen Wind aus. |