High Arctic channel incision modulated by climate change and the emergence of polygonal ground
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 a...
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ftpubmed:oai:pubmedcentral.nih.gov:10497538 2023-10-09T21:48:43+02:00 High Arctic channel incision modulated by climate change and the emergence of polygonal ground Chartrand, Shawn M. Jellinek, A. Mark Kukko, Antero Galofre, Anna Grau Osinski, Gordon R. Hibbard, Shannon 2023-09-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10497538/ http://www.ncbi.nlm.nih.gov/pubmed/37699903 https://doi.org/10.1038/s41467-023-40795-9 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10497538/ http://www.ncbi.nlm.nih.gov/pubmed/37699903 http://dx.doi.org/10.1038/s41467-023-40795-9 © Springer Nature Limited 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . Nat Commun Article Text 2023 ftpubmed https://doi.org/10.1038/s41467-023-40795-9 2023-09-17T00:56:57Z 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. Text Arctic Axel Heiberg Island Climate change Global warming muskox permafrost PubMed Central (PMC) Arctic Axel Heiberg Island ENVELOPE(-91.001,-91.001,79.752,79.752) Heiberg ENVELOPE(13.964,13.964,66.424,66.424) Nature Communications 14 1 |
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Article Chartrand, Shawn M. Jellinek, A. Mark Kukko, Antero Galofre, Anna Grau Osinski, Gordon R. Hibbard, Shannon High Arctic channel incision modulated by climate change and the emergence of polygonal ground |
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Article |
description |
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. |
format |
Text |
author |
Chartrand, Shawn M. Jellinek, A. Mark Kukko, Antero Galofre, Anna Grau Osinski, Gordon R. Hibbard, Shannon |
author_facet |
Chartrand, Shawn M. Jellinek, A. Mark Kukko, Antero Galofre, Anna Grau Osinski, Gordon R. Hibbard, Shannon |
author_sort |
Chartrand, Shawn M. |
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 |
Nature Publishing Group UK |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10497538/ http://www.ncbi.nlm.nih.gov/pubmed/37699903 https://doi.org/10.1038/s41467-023-40795-9 |
long_lat |
ENVELOPE(-91.001,-91.001,79.752,79.752) ENVELOPE(13.964,13.964,66.424,66.424) |
geographic |
Arctic Axel Heiberg Island Heiberg |
geographic_facet |
Arctic Axel Heiberg Island Heiberg |
genre |
Arctic Axel Heiberg Island Climate change Global warming muskox permafrost |
genre_facet |
Arctic Axel Heiberg Island Climate change Global warming muskox permafrost |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10497538/ http://www.ncbi.nlm.nih.gov/pubmed/37699903 http://dx.doi.org/10.1038/s41467-023-40795-9 |
op_rights |
© Springer Nature Limited 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
op_doi |
https://doi.org/10.1038/s41467-023-40795-9 |
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Nature Communications |
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14 |
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1 |
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1779311790111326208 |