Mountain permafrost: an invisible threat for moutaineers?
International audience Permafrost (permanently frozen ground) is largely present in mountain areas. Even though it is invisible, it is substantially more extended than glaciers (about 3 times more in the European Alps). Initially, permafrost was studied in the Arctic (Siberia, Northern Canada, Alask...
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ftccsdartic:oai:HAL:hal-03260767v1 2023-05-15T15:09:56+02:00 Mountain permafrost: an invisible threat for moutaineers? Magnin, Florence Environnements, Dynamiques et Territoires de la Montagne (EDYTEM) Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) Online, France 2021-05-12 https://hal.archives-ouvertes.fr/hal-03260767 https://hal.archives-ouvertes.fr/hal-03260767/document en eng HAL CCSD hal-03260767 https://hal.archives-ouvertes.fr/hal-03260767 https://hal.archives-ouvertes.fr/hal-03260767/document Mountain Talks#1: Keeping the mountain in one piece https://hal.archives-ouvertes.fr/hal-03260767 Mountain Talks#1: Keeping the mountain in one piece, May 2021, Online, France [SDE.ES]Environmental Sciences/Environmental and Society [SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/conferenceObject Conference papers 2021 ftccsdartic 2022-01-09T00:20:11Z International audience Permafrost (permanently frozen ground) is largely present in mountain areas. Even though it is invisible, it is substantially more extended than glaciers (about 3 times more in the European Alps). Initially, permafrost was studied in the Arctic (Siberia, Northern Canada, Alaska) and mountain permafrost has been investigated since the 1970s only. Since the early 2000s, and notably since the hot wave that struck the European Alps in 2003, and was concomitant to a high frequency of rockfalls, scientists have raised interests for rockwall permafrost. For about two decades, investigations on rockwall permafrost have focused on assessing and mapping its distribution in various mountain ranges, assessing its recent and future evolution, as well as determining its role in rockwall destabilization. It is not yet possible to predict when and where permafrost dynamics will trigger rockfalls, but some evidences of the link between rockwall permafrost distribution and shortterm evolution have already been established. In parallel, the impact of increasing rockfall frequency on mountain practices and guiding activities have been demonstatrated, notably in the Mont Blanc massif which has become an outdoor and pilot laboratory for alpine permafrost researches. This presentation will introduce some basic concepts and knowledge about mountain permafrost, how it is distributed, how it evolves, how it may threaten mountain practices and the recent developments to assess the risks associated to its evolution. Conference Object Arctic glacier* glaciers permafrost Alaska Siberia Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Arctic Canada Mont Blanc ENVELOPE(69.468,69.468,-49.461,-49.461) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDE.ES]Environmental Sciences/Environmental and Society [SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDE.ES]Environmental Sciences/Environmental and Society [SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes Magnin, Florence Mountain permafrost: an invisible threat for moutaineers? |
topic_facet |
[SDE.ES]Environmental Sciences/Environmental and Society [SDE]Environmental Sciences [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience Permafrost (permanently frozen ground) is largely present in mountain areas. Even though it is invisible, it is substantially more extended than glaciers (about 3 times more in the European Alps). Initially, permafrost was studied in the Arctic (Siberia, Northern Canada, Alaska) and mountain permafrost has been investigated since the 1970s only. Since the early 2000s, and notably since the hot wave that struck the European Alps in 2003, and was concomitant to a high frequency of rockfalls, scientists have raised interests for rockwall permafrost. For about two decades, investigations on rockwall permafrost have focused on assessing and mapping its distribution in various mountain ranges, assessing its recent and future evolution, as well as determining its role in rockwall destabilization. It is not yet possible to predict when and where permafrost dynamics will trigger rockfalls, but some evidences of the link between rockwall permafrost distribution and shortterm evolution have already been established. In parallel, the impact of increasing rockfall frequency on mountain practices and guiding activities have been demonstatrated, notably in the Mont Blanc massif which has become an outdoor and pilot laboratory for alpine permafrost researches. This presentation will introduce some basic concepts and knowledge about mountain permafrost, how it is distributed, how it evolves, how it may threaten mountain practices and the recent developments to assess the risks associated to its evolution. |
author2 |
Environnements, Dynamiques et Territoires de la Montagne (EDYTEM) Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) |
format |
Conference Object |
author |
Magnin, Florence |
author_facet |
Magnin, Florence |
author_sort |
Magnin, Florence |
title |
Mountain permafrost: an invisible threat for moutaineers? |
title_short |
Mountain permafrost: an invisible threat for moutaineers? |
title_full |
Mountain permafrost: an invisible threat for moutaineers? |
title_fullStr |
Mountain permafrost: an invisible threat for moutaineers? |
title_full_unstemmed |
Mountain permafrost: an invisible threat for moutaineers? |
title_sort |
mountain permafrost: an invisible threat for moutaineers? |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.archives-ouvertes.fr/hal-03260767 https://hal.archives-ouvertes.fr/hal-03260767/document |
op_coverage |
Online, France |
long_lat |
ENVELOPE(69.468,69.468,-49.461,-49.461) |
geographic |
Arctic Canada Mont Blanc |
geographic_facet |
Arctic Canada Mont Blanc |
genre |
Arctic glacier* glaciers permafrost Alaska Siberia |
genre_facet |
Arctic glacier* glaciers permafrost Alaska Siberia |
op_source |
Mountain Talks#1: Keeping the mountain in one piece https://hal.archives-ouvertes.fr/hal-03260767 Mountain Talks#1: Keeping the mountain in one piece, May 2021, Online, France |
op_relation |
hal-03260767 https://hal.archives-ouvertes.fr/hal-03260767 https://hal.archives-ouvertes.fr/hal-03260767/document |
_version_ |
1766341030088540160 |