Luisa Pruessner


Last Name

Pruessner

First Name

Luisa

ORCID

0000-0001-8125-2426

Organisational unit

Filters

2018 - 201912020 - 20225
Reset filters

Search Results

Publications 1 - 6 of 6
  • How rock glacier hydrology, deformation velocities and ground temperatures interact: Examples from the Swiss Alps
    Item type: Journal Article
    Kenner, Robert; Pruessner, Luisa; Beutel, Jan; et al. (2020)
    Permafrost and Periglacial Processes
  • Near-surface ventilation as a key for modeling the thermal regime of coarse blocky rock glaciers
    Item type: Journal Article
    Pruessner, Luisa; Phillips, Marcia; Farinotti, Daniel; et al. (2018)
    Permafrost and Periglacial Processes
  • Modelling Future Water Contributions from Three Rock Glaciers in the Swiss Alps
    Item type: Doctoral Thesis
    Pruessner, Luisa (2022)
  • Temperature evolution and runoff contribution of three rock glaciers in Switzerland under future climate forcing
    Item type: Journal Article
    Pruessner, Luisa; Huss, Matthias; Farinotti, Daniel (2022)
    Permafrost and Periglacial Processes
    With ongoing climate change water availability in the source regions of alpine streams are at stake. In particular, dry mountain regions which currently rely on glacial meltwater will need to adapt. Since rock glaciers are more resilient to climate change and occur in nearly all high-mountain catchments around the globe with some form of glacierization, it is of interest to investigate their contribution to runoff under different climate scenarios. Three well-monitored rock glacier sites in the Swiss Alps (Murtel, Ritigraben, and Schafberg) have been investigated under the climate change scenarios corresponding to low, medium and high greenhouse gas emissions to determine how their runoff contribution is affected. By the end of the 21st century, runoff from permafrost melting could account for 5-12% (12.0% for Murtel, 7.0% for Ritigraben, and 5.0% for Schafberg) of monthly catchment runoff at maximum in an average year, and up to 50% in extreme years. For the low-emission scenario, little change in the runoff contribution from rock glaciers is found, while the medium-emission scenario shows increased variability and a shift in the seasonal runoff peak to earlier in the year. The high-emission scenario indicates a further increase in the variability of the permafrost runoff contribution and also the development of a secondary seasonal peak in autumn, most prominently in the late century.
  • Modelling Future Water Contributions from Three Rock Glaciers in the Swiss Alps
    Item type: Monograph
    Pruessner, Luisa (2022)
    VAW-Mitteilungen
  • A Framework for Modeling Rock Glaciers and Permafrost at the Basin‐Scale in High Alpine Catchments
    Item type: Journal Article
    Pruessner, Luisa; Huss, Matthias; Phillips, Marcia; et al. (2021)
    Journal of Advances in Modeling Earth Systems
    Since rock glaciers are believed to be more resilient to climate change, water stores therein may become important water reservoirs in future, in particular in dry regions, which currently rely on glacial runoff. In order to estimate and evaluate the future runoff potential from permafrost and rock glaciers, distributed runoff models suitable for high Alpine catchments are needed. An extension to the distributed Glacier Evolution and Runoff Model (GERM) to include permafrost and rock glaciers in Alpine catchments is presented here, and compared to the established one dimensional (1D) physics‐based model SNOWPACK. The new permafrost component introduced to GERM treats permafrost as discreet depth layers in a 1D column for all grid cells, which have bulk thermal properties calculated from their constituents (ice, water, air, and solid component). The temperature evolution is computed using heat conduction and latent heat exchanges, modified by ventilation effects. Finally, we infer water runoff from permafrost degradation. Ground temperature variations calculated by both models are compared to borehole measurements at three Alpine sites and similar performances are found. Differences between the models are present in the amplitude of seasonal ground temperature variations, with SNOWPACK having a tendency to slightly overestimate them, while GERM underestimates them.
Publications 1 - 6 of 6