Twenty years of European mountain permafrost dynamics-the PACE legacy
This paper reviews and analyses the past 20 years of change and variability of European mountain permafrost in response to climate change based on time series of ground temperatures along a south-north transect of deep boreholes from Sierra Nevada in Spain (37°N) to Svalbard (78°N), established betw...
Published in: | Environmental Research Letters |
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Online Access: | https://hdl.handle.net/11383/2151838 https://doi.org/10.1088/1748-9326/abae9d |
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ftuninsubriairis:oai:irinsubria.uninsubria.it:11383/2151838 2024-04-14T08:00:10+00:00 Twenty years of European mountain permafrost dynamics-the PACE legacy Etzelmuller B. Guglielmin M. Hauck C. Hilbich C. Hoelzle M. Isaksen K. Noetzli J. Oliva M. Ramos M. Etzelmuller, B. Guglielmin, M. Hauck, C. Hilbich, C. Hoelzle, M. Isaksen, K. Noetzli, J. Oliva, M. Ramos, M. 2020 ELETTRONICO https://hdl.handle.net/11383/2151838 https://doi.org/10.1088/1748-9326/abae9d eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000579275300001 volume:15 issue:10 firstpage:1 lastpage:14 numberofpages:14 journal:ENVIRONMENTAL RESEARCH LETTERS https://hdl.handle.net/11383/2151838 doi:10.1088/1748-9326/abae9d info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85094154749 info:eu-repo/semantics/openAccess climate change Europe monitoring mountain permafrost PACE recent warming info:eu-repo/semantics/article 2020 ftuninsubriairis https://doi.org/10.1088/1748-9326/abae9d 2024-03-21T19:13:50Z This paper reviews and analyses the past 20 years of change and variability of European mountain permafrost in response to climate change based on time series of ground temperatures along a south-north transect of deep boreholes from Sierra Nevada in Spain (37°N) to Svalbard (78°N), established between 1998 and 2000 during the EU-funded PACE (Permafrost and Climate in Europe) project. In Sierra Nevada (at the Veleta Peak), no permafrost is encountered. All other boreholes are drilled in permafrost. Results show that permafrost warmed at all sites down to depths of 50 m or more. The warming at a 20 m depth varied between 1.5 °C on Svalbard and 0.4 °C in the Alps. Warming rates tend to be less pronounced in the warm permafrost boreholes, which is partly due to latent heat effects at more ice-rich sites with ground temperatures close to 0 °C. At most sites, the air temperature at 2 m height showed a smaller increase than the near-ground-surface temperature, leading to an increase of surface offsets (SOs). The active layer thickness (ALT) increased at all sites between c. 10% and 200% with respect to the start of the study period, with the largest changes observed in the European Alps. Multi-temporal electrical resistivity tomography (ERT) carried out at six sites showed a decrease in electrical resistivity, independently supporting our conclusion of ground ice degradation and higher unfrozen water content. Article in Journal/Newspaper Active layer thickness Ice permafrost Svalbard IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) Svalbard Environmental Research Letters 15 10 104070 |
institution |
Open Polar |
collection |
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) |
op_collection_id |
ftuninsubriairis |
language |
English |
topic |
climate change Europe monitoring mountain permafrost PACE recent warming |
spellingShingle |
climate change Europe monitoring mountain permafrost PACE recent warming Etzelmuller B. Guglielmin M. Hauck C. Hilbich C. Hoelzle M. Isaksen K. Noetzli J. Oliva M. Ramos M. Twenty years of European mountain permafrost dynamics-the PACE legacy |
topic_facet |
climate change Europe monitoring mountain permafrost PACE recent warming |
description |
This paper reviews and analyses the past 20 years of change and variability of European mountain permafrost in response to climate change based on time series of ground temperatures along a south-north transect of deep boreholes from Sierra Nevada in Spain (37°N) to Svalbard (78°N), established between 1998 and 2000 during the EU-funded PACE (Permafrost and Climate in Europe) project. In Sierra Nevada (at the Veleta Peak), no permafrost is encountered. All other boreholes are drilled in permafrost. Results show that permafrost warmed at all sites down to depths of 50 m or more. The warming at a 20 m depth varied between 1.5 °C on Svalbard and 0.4 °C in the Alps. Warming rates tend to be less pronounced in the warm permafrost boreholes, which is partly due to latent heat effects at more ice-rich sites with ground temperatures close to 0 °C. At most sites, the air temperature at 2 m height showed a smaller increase than the near-ground-surface temperature, leading to an increase of surface offsets (SOs). The active layer thickness (ALT) increased at all sites between c. 10% and 200% with respect to the start of the study period, with the largest changes observed in the European Alps. Multi-temporal electrical resistivity tomography (ERT) carried out at six sites showed a decrease in electrical resistivity, independently supporting our conclusion of ground ice degradation and higher unfrozen water content. |
author2 |
Etzelmuller, B. Guglielmin, M. Hauck, C. Hilbich, C. Hoelzle, M. Isaksen, K. Noetzli, J. Oliva, M. Ramos, M. |
format |
Article in Journal/Newspaper |
author |
Etzelmuller B. Guglielmin M. Hauck C. Hilbich C. Hoelzle M. Isaksen K. Noetzli J. Oliva M. Ramos M. |
author_facet |
Etzelmuller B. Guglielmin M. Hauck C. Hilbich C. Hoelzle M. Isaksen K. Noetzli J. Oliva M. Ramos M. |
author_sort |
Etzelmuller B. |
title |
Twenty years of European mountain permafrost dynamics-the PACE legacy |
title_short |
Twenty years of European mountain permafrost dynamics-the PACE legacy |
title_full |
Twenty years of European mountain permafrost dynamics-the PACE legacy |
title_fullStr |
Twenty years of European mountain permafrost dynamics-the PACE legacy |
title_full_unstemmed |
Twenty years of European mountain permafrost dynamics-the PACE legacy |
title_sort |
twenty years of european mountain permafrost dynamics-the pace legacy |
publishDate |
2020 |
url |
https://hdl.handle.net/11383/2151838 https://doi.org/10.1088/1748-9326/abae9d |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
Active layer thickness Ice permafrost Svalbard |
genre_facet |
Active layer thickness Ice permafrost Svalbard |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000579275300001 volume:15 issue:10 firstpage:1 lastpage:14 numberofpages:14 journal:ENVIRONMENTAL RESEARCH LETTERS https://hdl.handle.net/11383/2151838 doi:10.1088/1748-9326/abae9d info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85094154749 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1088/1748-9326/abae9d |
container_title |
Environmental Research Letters |
container_volume |
15 |
container_issue |
10 |
container_start_page |
104070 |
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1796315233630814208 |