High Arctic channel incision modulated by climate change and the emergence of polygonal ground
International audience Stream networks in Arctic and high-elevation regions underlain by frozen ground (i.e., permafrost) are expanding and developing in response to accelerating global warming, and intensifying summertime climate variability. The underlying processes governing landscape dissection...
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ftinsu:oai:HAL:hal-04665622v1 2024-09-15T17:56:51+00:00 High Arctic channel incision modulated by climate change and the emergence of polygonal ground Chartrand, Shawn Jellinek, A. Mark Kukko, Antero Galofre, Anna Grau Osinski, Gordon Hibbard, Shannon Simon Fraser University = Université Simon Fraser (SFU.ca) University of British Columbia (UBC) Finnish Geospatial Research Institute (FGI) Laboratoire de Planétologie et Géosciences UMR_C 6112 (LPG) Le Mans Université (UM)-Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST) Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) University of Western Ontario (UWO) 2023 https://hal.science/hal-04665622 https://hal.science/hal-04665622/document https://hal.science/hal-04665622/file/Chartrand-et-al_2023.pdf https://doi.org/10.1038/s41467-023-40795-9 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-023-40795-9 hal-04665622 https://hal.science/hal-04665622 https://hal.science/hal-04665622/document https://hal.science/hal-04665622/file/Chartrand-et-al_2023.pdf doi:10.1038/s41467-023-40795-9 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.science/hal-04665622 Nature Communications, 2023, 14 (1), pp.5297. ⟨10.1038/s41467-023-40795-9⟩ [SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2023 ftinsu https://doi.org/10.1038/s41467-023-40795-9 2024-08-07T23:40:48Z International audience Stream networks in Arctic and high-elevation regions underlain by frozen ground (i.e., permafrost) are expanding and developing in response to accelerating global warming, and intensifying summertime climate variability. The underlying processes governing landscape dissection in these environments are varied, complex and challenging to unravel due to air-temperature-regulated feedbacks and shifts to new erosional regimes as climate change progresses. Here we use multiple sources of environmental information and physical models to reconstruct and understand a 60-year history of landscape-scale channelization and evolution of the Muskox Valley, Axel Heiberg Island. A time series of air photographs indicates that freeze-thaw-related polygon fields can form rapidly, over decadal time scales. Supporting numerical simulations show that the presence of polygons can control how surface runoff is routed through the landscape, exerting a basic control on channelization, which is sensitive to the timing, duration and magnitude of hydrograph events, as well as seasonal air temperature trends. These results collectively highlight that the occurrence and dynamics of polygon fields modulate channel network establishment in permafrost-rich settings undergoing changes related to a warming climate. Article in Journal/Newspaper Axel Heiberg Island Climate change Global warming muskox permafrost Institut national des sciences de l'Univers: HAL-INSU Nature Communications 14 1 |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] Chartrand, Shawn Jellinek, A. Mark Kukko, Antero Galofre, Anna Grau Osinski, Gordon Hibbard, Shannon High Arctic channel incision modulated by climate change and the emergence of polygonal ground |
topic_facet |
[SDE.MCG]Environmental Sciences/Global Changes [SDU]Sciences of the Universe [physics] |
description |
International audience Stream networks in Arctic and high-elevation regions underlain by frozen ground (i.e., permafrost) are expanding and developing in response to accelerating global warming, and intensifying summertime climate variability. The underlying processes governing landscape dissection in these environments are varied, complex and challenging to unravel due to air-temperature-regulated feedbacks and shifts to new erosional regimes as climate change progresses. Here we use multiple sources of environmental information and physical models to reconstruct and understand a 60-year history of landscape-scale channelization and evolution of the Muskox Valley, Axel Heiberg Island. A time series of air photographs indicates that freeze-thaw-related polygon fields can form rapidly, over decadal time scales. Supporting numerical simulations show that the presence of polygons can control how surface runoff is routed through the landscape, exerting a basic control on channelization, which is sensitive to the timing, duration and magnitude of hydrograph events, as well as seasonal air temperature trends. These results collectively highlight that the occurrence and dynamics of polygon fields modulate channel network establishment in permafrost-rich settings undergoing changes related to a warming climate. |
author2 |
Simon Fraser University = Université Simon Fraser (SFU.ca) University of British Columbia (UBC) Finnish Geospatial Research Institute (FGI) Laboratoire de Planétologie et Géosciences UMR_C 6112 (LPG) Le Mans Université (UM)-Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST) Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ) University of Western Ontario (UWO) |
format |
Article in Journal/Newspaper |
author |
Chartrand, Shawn Jellinek, A. Mark Kukko, Antero Galofre, Anna Grau Osinski, Gordon Hibbard, Shannon |
author_facet |
Chartrand, Shawn Jellinek, A. Mark Kukko, Antero Galofre, Anna Grau Osinski, Gordon Hibbard, Shannon |
author_sort |
Chartrand, Shawn |
title |
High Arctic channel incision modulated by climate change and the emergence of polygonal ground |
title_short |
High Arctic channel incision modulated by climate change and the emergence of polygonal ground |
title_full |
High Arctic channel incision modulated by climate change and the emergence of polygonal ground |
title_fullStr |
High Arctic channel incision modulated by climate change and the emergence of polygonal ground |
title_full_unstemmed |
High Arctic channel incision modulated by climate change and the emergence of polygonal ground |
title_sort |
high arctic channel incision modulated by climate change and the emergence of polygonal ground |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04665622 https://hal.science/hal-04665622/document https://hal.science/hal-04665622/file/Chartrand-et-al_2023.pdf https://doi.org/10.1038/s41467-023-40795-9 |
genre |
Axel Heiberg Island Climate change Global warming muskox permafrost |
genre_facet |
Axel Heiberg Island Climate change Global warming muskox permafrost |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.science/hal-04665622 Nature Communications, 2023, 14 (1), pp.5297. ⟨10.1038/s41467-023-40795-9⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-023-40795-9 hal-04665622 https://hal.science/hal-04665622 https://hal.science/hal-04665622/document https://hal.science/hal-04665622/file/Chartrand-et-al_2023.pdf doi:10.1038/s41467-023-40795-9 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41467-023-40795-9 |
container_title |
Nature Communications |
container_volume |
14 |
container_issue |
1 |
_version_ |
1810433039489040384 |