Alpine Permafrost Modeling: On the influence of topography driven lateral fluxes
Alpine permafrost environments are highly vulnerable and sensitive to changes in regional and global climate trends. Thawing and degradation of permafrost has numerous adverse environmental, economic, and societal impacts. Mathematical modeling and numerical simulations provide powerful tools for pr...
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ftdatacite:10.48550/arxiv.2110.07217 2023-05-15T15:09:43+02:00 Alpine Permafrost Modeling: On the influence of topography driven lateral fluxes Beddrich, Jonas Gupta, Shubhangi Wohlmuth, Barbara Chiogna, Gabriele 2021 https://dx.doi.org/10.48550/arxiv.2110.07217 https://arxiv.org/abs/2110.07217 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Atmospheric and Oceanic Physics physics.ao-ph Numerical Analysis math.NA FOS Physical sciences FOS Mathematics 76T10 Primary, 65K15 Secondary Article CreativeWork article Preprint 2021 ftdatacite https://doi.org/10.48550/arxiv.2110.07217 2022-03-10T13:50:12Z Alpine permafrost environments are highly vulnerable and sensitive to changes in regional and global climate trends. Thawing and degradation of permafrost has numerous adverse environmental, economic, and societal impacts. Mathematical modeling and numerical simulations provide powerful tools for predicting the degree of degradation and evolution of subsurface permafrost as a result of global warming. A particularly significant characteristic of alpine environments is the high variability in their topography and geomorphology which drives large lateral thermal and fluid fluxes. Additionally, harsh winds, extreme weather conditions, and various degrees of saturation have to be considered. The combination of large lateral fluxes and unsaturated ground makes alpine systems markedly different from Arctic permafrost environments and general geotechnical ground freezing applications, and therefore, alpine permafrost demands its own specialized modeling approaches. In this research work, we present a multi-physics permafrost model tailored to alpine regions. In particular, we resolve the ice-water phase transitions, unsaturated conditions, and capillary actions, and account for the impact of the evolving pore volume on fluid-matrix interactions. Moreover, the approach is multi-dimensional, and therefore, inherently resolves fluxes along topographic gradients. Through numerical cases studies based on the elevation profiles of the two prominent peaks of the Zugspitze (DE) and the Matterhorn (CH), we show the strong influence of topography driven thermal and fluid fluxes on active layer dynamics and the distribution of permafrost. : 20 pages (without appendix), 9 figures Article in Journal/Newspaper Arctic Global warming Ice permafrost DataCite Metadata Store (German National Library of Science and Technology) Arctic Matterhorn ENVELOPE(-20.900,-20.900,75.417,75.417) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Atmospheric and Oceanic Physics physics.ao-ph Numerical Analysis math.NA FOS Physical sciences FOS Mathematics 76T10 Primary, 65K15 Secondary |
spellingShingle |
Atmospheric and Oceanic Physics physics.ao-ph Numerical Analysis math.NA FOS Physical sciences FOS Mathematics 76T10 Primary, 65K15 Secondary Beddrich, Jonas Gupta, Shubhangi Wohlmuth, Barbara Chiogna, Gabriele Alpine Permafrost Modeling: On the influence of topography driven lateral fluxes |
topic_facet |
Atmospheric and Oceanic Physics physics.ao-ph Numerical Analysis math.NA FOS Physical sciences FOS Mathematics 76T10 Primary, 65K15 Secondary |
description |
Alpine permafrost environments are highly vulnerable and sensitive to changes in regional and global climate trends. Thawing and degradation of permafrost has numerous adverse environmental, economic, and societal impacts. Mathematical modeling and numerical simulations provide powerful tools for predicting the degree of degradation and evolution of subsurface permafrost as a result of global warming. A particularly significant characteristic of alpine environments is the high variability in their topography and geomorphology which drives large lateral thermal and fluid fluxes. Additionally, harsh winds, extreme weather conditions, and various degrees of saturation have to be considered. The combination of large lateral fluxes and unsaturated ground makes alpine systems markedly different from Arctic permafrost environments and general geotechnical ground freezing applications, and therefore, alpine permafrost demands its own specialized modeling approaches. In this research work, we present a multi-physics permafrost model tailored to alpine regions. In particular, we resolve the ice-water phase transitions, unsaturated conditions, and capillary actions, and account for the impact of the evolving pore volume on fluid-matrix interactions. Moreover, the approach is multi-dimensional, and therefore, inherently resolves fluxes along topographic gradients. Through numerical cases studies based on the elevation profiles of the two prominent peaks of the Zugspitze (DE) and the Matterhorn (CH), we show the strong influence of topography driven thermal and fluid fluxes on active layer dynamics and the distribution of permafrost. : 20 pages (without appendix), 9 figures |
format |
Article in Journal/Newspaper |
author |
Beddrich, Jonas Gupta, Shubhangi Wohlmuth, Barbara Chiogna, Gabriele |
author_facet |
Beddrich, Jonas Gupta, Shubhangi Wohlmuth, Barbara Chiogna, Gabriele |
author_sort |
Beddrich, Jonas |
title |
Alpine Permafrost Modeling: On the influence of topography driven lateral fluxes |
title_short |
Alpine Permafrost Modeling: On the influence of topography driven lateral fluxes |
title_full |
Alpine Permafrost Modeling: On the influence of topography driven lateral fluxes |
title_fullStr |
Alpine Permafrost Modeling: On the influence of topography driven lateral fluxes |
title_full_unstemmed |
Alpine Permafrost Modeling: On the influence of topography driven lateral fluxes |
title_sort |
alpine permafrost modeling: on the influence of topography driven lateral fluxes |
publisher |
arXiv |
publishDate |
2021 |
url |
https://dx.doi.org/10.48550/arxiv.2110.07217 https://arxiv.org/abs/2110.07217 |
long_lat |
ENVELOPE(-20.900,-20.900,75.417,75.417) |
geographic |
Arctic Matterhorn |
geographic_facet |
Arctic Matterhorn |
genre |
Arctic Global warming Ice permafrost |
genre_facet |
Arctic Global warming Ice permafrost |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.2110.07217 |
_version_ |
1766340843740856320 |