Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change
Permafrost in steep bedrock is abundant in many cold-mountain areas, and its degradation can cause slope instability that is unexpected and unprecedented in location, magnitude, frequency, and timing. These phenomena bear consequences for the understanding of landscape evolution, natural hazards, an...
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American Geophysical Union
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ftunivzuerich:oai:www.zora.uzh.ch:3936 2024-10-13T14:07:57+00:00 Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change Gruber, S Haeberli, W 2007 application/pdf https://www.zora.uzh.ch/id/eprint/3936/ https://www.zora.uzh.ch/id/eprint/3936/9/Gruber_Haeberli_Permafrost_Steep_2007.pdf https://doi.org/10.1029/2006JF000547 eng eng American Geophysical Union https://www.zora.uzh.ch/id/eprint/3936/9/Gruber_Haeberli_Permafrost_Steep_2007.pdf doi:10.5167/uzh-3936 doi:10.1029/2006JF000547 urn:issn:0148-0227 info:eu-repo/semantics/openAccess Gruber, S; Haeberli, W (2007). Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change. Journal of Geophysical Research, 112:F02S18. Institute of Geography 910 Geography & travel Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2007 ftunivzuerich https://doi.org/10.1029/2006JF00054710.5167/uzh-3936 2024-10-02T15:06:29Z Permafrost in steep bedrock is abundant in many cold-mountain areas, and its degradation can cause slope instability that is unexpected and unprecedented in location, magnitude, frequency, and timing. These phenomena bear consequences for the understanding of landscape evolution, natural hazards, and the safe and sustainable operation of high-mountain infrastructure. Permafrost in steep bedrock is an emerging field of research. Knowledge of rock temperatures, ice content, mechanisms of degradation, and the processes that link warming and destabilization is often fragmental. In this article we provide a review and discussion of existing literature and pinpoint important questions. Ice-filled joints are common in bedrock permafrost and possibly actively widened by ice segregation. Broad evidence of destabilization by warming permafrost exists despite problems of attributing individual events to this phenomenon with certainty. Convex topography such as ridges, spurs, and peaks is often subject to faster and deeper thaw than other areas. Permafrost degradation in steep bedrock can be strongly affected by percolating water in fractures. This degradation by advection is difficult to predict and can lead to quick and deepdevelopment of thaw corridors along fractures in permafrost and potentially destabilize much greater volumes of rock than conduction would. Although most research on steep bedrock permafrost originates from the Alps, it will likely gain importance in other geographic regions with mountain permafrost. Article in Journal/Newspaper Ice permafrost University of Zurich (UZH): ZORA (Zurich Open Repository and Archive Cold Mountain ENVELOPE(173.152,173.152,52.901,52.901) |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Institute of Geography 910 Geography & travel |
spellingShingle |
Institute of Geography 910 Geography & travel Gruber, S Haeberli, W Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change |
topic_facet |
Institute of Geography 910 Geography & travel |
description |
Permafrost in steep bedrock is abundant in many cold-mountain areas, and its degradation can cause slope instability that is unexpected and unprecedented in location, magnitude, frequency, and timing. These phenomena bear consequences for the understanding of landscape evolution, natural hazards, and the safe and sustainable operation of high-mountain infrastructure. Permafrost in steep bedrock is an emerging field of research. Knowledge of rock temperatures, ice content, mechanisms of degradation, and the processes that link warming and destabilization is often fragmental. In this article we provide a review and discussion of existing literature and pinpoint important questions. Ice-filled joints are common in bedrock permafrost and possibly actively widened by ice segregation. Broad evidence of destabilization by warming permafrost exists despite problems of attributing individual events to this phenomenon with certainty. Convex topography such as ridges, spurs, and peaks is often subject to faster and deeper thaw than other areas. Permafrost degradation in steep bedrock can be strongly affected by percolating water in fractures. This degradation by advection is difficult to predict and can lead to quick and deepdevelopment of thaw corridors along fractures in permafrost and potentially destabilize much greater volumes of rock than conduction would. Although most research on steep bedrock permafrost originates from the Alps, it will likely gain importance in other geographic regions with mountain permafrost. |
format |
Article in Journal/Newspaper |
author |
Gruber, S Haeberli, W |
author_facet |
Gruber, S Haeberli, W |
author_sort |
Gruber, S |
title |
Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change |
title_short |
Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change |
title_full |
Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change |
title_fullStr |
Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change |
title_full_unstemmed |
Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change |
title_sort |
permafrost in steep bedrock slopes and its temperature-related destabilization following climate change |
publisher |
American Geophysical Union |
publishDate |
2007 |
url |
https://www.zora.uzh.ch/id/eprint/3936/ https://www.zora.uzh.ch/id/eprint/3936/9/Gruber_Haeberli_Permafrost_Steep_2007.pdf https://doi.org/10.1029/2006JF000547 |
long_lat |
ENVELOPE(173.152,173.152,52.901,52.901) |
geographic |
Cold Mountain |
geographic_facet |
Cold Mountain |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Gruber, S; Haeberli, W (2007). Permafrost in steep bedrock slopes and its temperature-related destabilization following climate change. Journal of Geophysical Research, 112:F02S18. |
op_relation |
https://www.zora.uzh.ch/id/eprint/3936/9/Gruber_Haeberli_Permafrost_Steep_2007.pdf doi:10.5167/uzh-3936 doi:10.1029/2006JF000547 urn:issn:0148-0227 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2006JF00054710.5167/uzh-3936 |
_version_ |
1812814523319451648 |