Influence of surface and subsurface heterogeneity on observed borehole temperatures at a mountain permafrost site in the Upper Engadine, Swiss Alps
Compared to lowland (polar) regions, permafrost in high mountain areas occurs in a large variety of surface and subsurface materials and textures. This work presents an eight-year (2002–2010) data set of borehole temperatures for five different (sub-) surface materials from a high alpine permafrost...
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Copernicus Publications
2012
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Online Access: | https://doi.org/10.5194/tc-6-517-2012 http://www.the-cryosphere.net/6/517/2012/tc-6-517-2012.pdf https://doaj.org/article/4ccf1d57526b4c11a28816f9a2987f5e |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:4ccf1d57526b4c11a28816f9a2987f5e 2023-05-15T16:36:50+02:00 Influence of surface and subsurface heterogeneity on observed borehole temperatures at a mountain permafrost site in the Upper Engadine, Swiss Alps S. Schneider M. Hoelzle C. Hauck 2012-04-01 https://doi.org/10.5194/tc-6-517-2012 http://www.the-cryosphere.net/6/517/2012/tc-6-517-2012.pdf https://doaj.org/article/4ccf1d57526b4c11a28816f9a2987f5e en eng Copernicus Publications doi:10.5194/tc-6-517-2012 1994-0416 1994-0424 http://www.the-cryosphere.net/6/517/2012/tc-6-517-2012.pdf https://doaj.org/article/4ccf1d57526b4c11a28816f9a2987f5e undefined The Cryosphere, Vol 6, Iss 2, Pp 517-531 (2012) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2012 fttriple https://doi.org/10.5194/tc-6-517-2012 2023-01-22T19:35:23Z Compared to lowland (polar) regions, permafrost in high mountain areas occurs in a large variety of surface and subsurface materials and textures. This work presents an eight-year (2002–2010) data set of borehole temperatures for five different (sub-) surface materials from a high alpine permafrost area, Murtèl-Corvatsch, Switzerland. The influence of the material on the thermal regime was investigated by borehole temperature data, the temperature at the top of the permafrost (TTOP-concept) and the apparent thermal diffusivity (ATD). The results show that during the last eight years, material-specific temperature changes were more significant than climate-induced temperature trends. At coarse blocky, ice-rich sites, no changes in active layer depth were observed, whereas the bedrock and the fine-grained sites appear to be highly sensitive to changes in the microclimate. The results confirm that the presence and growth of ice as well as a thermally driven air circulation within the subsurface are the key factors for the occurence and preservation of alpine permafrost. Article in Journal/Newspaper Ice permafrost The Cryosphere Unknown The Cryosphere 6 2 517 531 |
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English |
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geo envir |
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geo envir S. Schneider M. Hoelzle C. Hauck Influence of surface and subsurface heterogeneity on observed borehole temperatures at a mountain permafrost site in the Upper Engadine, Swiss Alps |
topic_facet |
geo envir |
description |
Compared to lowland (polar) regions, permafrost in high mountain areas occurs in a large variety of surface and subsurface materials and textures. This work presents an eight-year (2002–2010) data set of borehole temperatures for five different (sub-) surface materials from a high alpine permafrost area, Murtèl-Corvatsch, Switzerland. The influence of the material on the thermal regime was investigated by borehole temperature data, the temperature at the top of the permafrost (TTOP-concept) and the apparent thermal diffusivity (ATD). The results show that during the last eight years, material-specific temperature changes were more significant than climate-induced temperature trends. At coarse blocky, ice-rich sites, no changes in active layer depth were observed, whereas the bedrock and the fine-grained sites appear to be highly sensitive to changes in the microclimate. The results confirm that the presence and growth of ice as well as a thermally driven air circulation within the subsurface are the key factors for the occurence and preservation of alpine permafrost. |
format |
Article in Journal/Newspaper |
author |
S. Schneider M. Hoelzle C. Hauck |
author_facet |
S. Schneider M. Hoelzle C. Hauck |
author_sort |
S. Schneider |
title |
Influence of surface and subsurface heterogeneity on observed borehole temperatures at a mountain permafrost site in the Upper Engadine, Swiss Alps |
title_short |
Influence of surface and subsurface heterogeneity on observed borehole temperatures at a mountain permafrost site in the Upper Engadine, Swiss Alps |
title_full |
Influence of surface and subsurface heterogeneity on observed borehole temperatures at a mountain permafrost site in the Upper Engadine, Swiss Alps |
title_fullStr |
Influence of surface and subsurface heterogeneity on observed borehole temperatures at a mountain permafrost site in the Upper Engadine, Swiss Alps |
title_full_unstemmed |
Influence of surface and subsurface heterogeneity on observed borehole temperatures at a mountain permafrost site in the Upper Engadine, Swiss Alps |
title_sort |
influence of surface and subsurface heterogeneity on observed borehole temperatures at a mountain permafrost site in the upper engadine, swiss alps |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/tc-6-517-2012 http://www.the-cryosphere.net/6/517/2012/tc-6-517-2012.pdf https://doaj.org/article/4ccf1d57526b4c11a28816f9a2987f5e |
genre |
Ice permafrost The Cryosphere |
genre_facet |
Ice permafrost The Cryosphere |
op_source |
The Cryosphere, Vol 6, Iss 2, Pp 517-531 (2012) |
op_relation |
doi:10.5194/tc-6-517-2012 1994-0416 1994-0424 http://www.the-cryosphere.net/6/517/2012/tc-6-517-2012.pdf https://doaj.org/article/4ccf1d57526b4c11a28816f9a2987f5e |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-6-517-2012 |
container_title |
The Cryosphere |
container_volume |
6 |
container_issue |
2 |
container_start_page |
517 |
op_container_end_page |
531 |
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1766027159797760000 |