Warming permafrost and active layer variability at Cime Bianche, Western European Alps
The objective of this paper is to provide a first synthesis on the state and recent evolution of permafrost at the monitoring site of Cime Bianche (3100 m a.s.l.) on the Italian side of the Western Alps. The analysis is based on 7 years of ground temperature observations in two boreholes and seven s...
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ftuninsubriairis:oai:irinsubria.uninsubria.it:11383/2050669 2024-04-14T08:00:10+00:00 Warming permafrost and active layer variability at Cime Bianche, Western European Alps Pogliotti, P Cremonese, E. Morra Di Cella, U. Filippa, G. Pellet, C. Hauck, C. GUGLIELMIN, MAURO Pogliotti, P Guglielmin, Mauro Cremonese, E. Morra Di Cella, U. Filippa, G. Pellet, C. Hauck, C. 2015 http://hdl.handle.net/11383/2050669 https://doi.org/10.5194/tc-9-647-2015 http://www.the-cryosphere.net/volumes_and_issues.html eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000353878400016 volume:9 issue:2 firstpage:647 lastpage:661 numberofpages:15 journal:THE CRYOSPHERE http://hdl.handle.net/11383/2050669 doi:10.5194/tc-9-647-2015 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84927589020 http://www.the-cryosphere.net/volumes_and_issues.html Water Science and Technology Earth-Surface Processes info:eu-repo/semantics/article 2015 ftuninsubriairis https://doi.org/10.5194/tc-9-647-2015 2024-03-21T19:01:29Z The objective of this paper is to provide a first synthesis on the state and recent evolution of permafrost at the monitoring site of Cime Bianche (3100 m a.s.l.) on the Italian side of the Western Alps. The analysis is based on 7 years of ground temperature observations in two boreholes and seven surface points. The analysis aims to quantify the spatial and temporal variability of ground surface temperature in relation to snow cover, the small-scale spatial variability of the active layer thickness and current temperature trends in deep permafrost. Results show that the heterogeneity of snow cover thickness, both in space and time, is the main factor controlling ground surface temperatures and leads to a mean range of spatial variability (2.5 ± 0.1 °C) which far exceeds the mean range of observed inter-annual variability (1.6 ± 0.1 °C). The active layer thickness measured in two boreholes at a distance of 30 m shows a mean difference of 2.0 ± 0.1 m with the active layer of one borehole consistently deeper. As revealed by temperature analysis and geophysical soundings, such a difference is mainly driven by the ice/water content in the sub-surface and not by the snow cover regimes. The analysis of deep temperature time series reveals that permafrost is warming. The detected trends are statistically significant starting from a depth below 8 m with warming rates between 0.1 and 0.01 °C yr -1 . Article in Journal/Newspaper Active layer thickness Ice permafrost IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) The Cryosphere 9 2 647 661 |
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Open Polar |
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IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) |
op_collection_id |
ftuninsubriairis |
language |
English |
topic |
Water Science and Technology Earth-Surface Processes |
spellingShingle |
Water Science and Technology Earth-Surface Processes Pogliotti, P Cremonese, E. Morra Di Cella, U. Filippa, G. Pellet, C. Hauck, C. GUGLIELMIN, MAURO Warming permafrost and active layer variability at Cime Bianche, Western European Alps |
topic_facet |
Water Science and Technology Earth-Surface Processes |
description |
The objective of this paper is to provide a first synthesis on the state and recent evolution of permafrost at the monitoring site of Cime Bianche (3100 m a.s.l.) on the Italian side of the Western Alps. The analysis is based on 7 years of ground temperature observations in two boreholes and seven surface points. The analysis aims to quantify the spatial and temporal variability of ground surface temperature in relation to snow cover, the small-scale spatial variability of the active layer thickness and current temperature trends in deep permafrost. Results show that the heterogeneity of snow cover thickness, both in space and time, is the main factor controlling ground surface temperatures and leads to a mean range of spatial variability (2.5 ± 0.1 °C) which far exceeds the mean range of observed inter-annual variability (1.6 ± 0.1 °C). The active layer thickness measured in two boreholes at a distance of 30 m shows a mean difference of 2.0 ± 0.1 m with the active layer of one borehole consistently deeper. As revealed by temperature analysis and geophysical soundings, such a difference is mainly driven by the ice/water content in the sub-surface and not by the snow cover regimes. The analysis of deep temperature time series reveals that permafrost is warming. The detected trends are statistically significant starting from a depth below 8 m with warming rates between 0.1 and 0.01 °C yr -1 . |
author2 |
Pogliotti, P Guglielmin, Mauro Cremonese, E. Morra Di Cella, U. Filippa, G. Pellet, C. Hauck, C. |
format |
Article in Journal/Newspaper |
author |
Pogliotti, P Cremonese, E. Morra Di Cella, U. Filippa, G. Pellet, C. Hauck, C. GUGLIELMIN, MAURO |
author_facet |
Pogliotti, P Cremonese, E. Morra Di Cella, U. Filippa, G. Pellet, C. Hauck, C. GUGLIELMIN, MAURO |
author_sort |
Pogliotti, P |
title |
Warming permafrost and active layer variability at Cime Bianche, Western European Alps |
title_short |
Warming permafrost and active layer variability at Cime Bianche, Western European Alps |
title_full |
Warming permafrost and active layer variability at Cime Bianche, Western European Alps |
title_fullStr |
Warming permafrost and active layer variability at Cime Bianche, Western European Alps |
title_full_unstemmed |
Warming permafrost and active layer variability at Cime Bianche, Western European Alps |
title_sort |
warming permafrost and active layer variability at cime bianche, western european alps |
publishDate |
2015 |
url |
http://hdl.handle.net/11383/2050669 https://doi.org/10.5194/tc-9-647-2015 http://www.the-cryosphere.net/volumes_and_issues.html |
genre |
Active layer thickness Ice permafrost |
genre_facet |
Active layer thickness Ice permafrost |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000353878400016 volume:9 issue:2 firstpage:647 lastpage:661 numberofpages:15 journal:THE CRYOSPHERE http://hdl.handle.net/11383/2050669 doi:10.5194/tc-9-647-2015 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84927589020 http://www.the-cryosphere.net/volumes_and_issues.html |
op_doi |
https://doi.org/10.5194/tc-9-647-2015 |
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The Cryosphere |
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9 |
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2 |
container_start_page |
647 |
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