Permafrost‐thaw‐induced land‐cover change in the Canadian subarctic: implications for water resources
Abstract Climate warming and human disturbance in north‐western Canada have been accompanied by degradation of permafrost, which introduces considerable uncertainty to the future availability of northern freshwater resources. This study demonstrates the rate and spatial pattern of permafrost loss in...
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crwiley:10.1002/hyp.7894 2024-06-23T07:56:02+00:00 Permafrost‐thaw‐induced land‐cover change in the Canadian subarctic: implications for water resources Quinton, W.L. Hayashi, M. Chasmer, L.E. 2010 http://dx.doi.org/10.1002/hyp.7894 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.7894 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.7894 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 25, issue 1, page 152-158 ISSN 0885-6087 1099-1085 journal-article 2010 crwiley https://doi.org/10.1002/hyp.7894 2024-06-11T04:43:24Z Abstract Climate warming and human disturbance in north‐western Canada have been accompanied by degradation of permafrost, which introduces considerable uncertainty to the future availability of northern freshwater resources. This study demonstrates the rate and spatial pattern of permafrost loss in a region that typifies the southern boundary of permafrost. Remote‐sensing analysis of a 1·0 km 2 area indicates that permafrost occupied 0·70 km 2 in 1947 and decreased with time to 0·43 km 2 by 2008. Ground‐based measurements demonstrate the importance of horizontal heat flows in thawing discontinuous permafrost, and show that such thaw produces dramatic land‐cover changes that can alter basin runoff production in this region. A major challenge to northern water resources management in the twenty‐first century therefore lies in predicting stream flows dynamically in the context of widely occurring permafrost thaw. The need for appropriate water resource planning, mitigation, and adaptation strategies is explained. Copyright © 2010 John Wiley & Sons, Ltd. Article in Journal/Newspaper permafrost Subarctic Wiley Online Library Canada Hydrological Processes 25 1 152 158 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Climate warming and human disturbance in north‐western Canada have been accompanied by degradation of permafrost, which introduces considerable uncertainty to the future availability of northern freshwater resources. This study demonstrates the rate and spatial pattern of permafrost loss in a region that typifies the southern boundary of permafrost. Remote‐sensing analysis of a 1·0 km 2 area indicates that permafrost occupied 0·70 km 2 in 1947 and decreased with time to 0·43 km 2 by 2008. Ground‐based measurements demonstrate the importance of horizontal heat flows in thawing discontinuous permafrost, and show that such thaw produces dramatic land‐cover changes that can alter basin runoff production in this region. A major challenge to northern water resources management in the twenty‐first century therefore lies in predicting stream flows dynamically in the context of widely occurring permafrost thaw. The need for appropriate water resource planning, mitigation, and adaptation strategies is explained. Copyright © 2010 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Quinton, W.L. Hayashi, M. Chasmer, L.E. |
spellingShingle |
Quinton, W.L. Hayashi, M. Chasmer, L.E. Permafrost‐thaw‐induced land‐cover change in the Canadian subarctic: implications for water resources |
author_facet |
Quinton, W.L. Hayashi, M. Chasmer, L.E. |
author_sort |
Quinton, W.L. |
title |
Permafrost‐thaw‐induced land‐cover change in the Canadian subarctic: implications for water resources |
title_short |
Permafrost‐thaw‐induced land‐cover change in the Canadian subarctic: implications for water resources |
title_full |
Permafrost‐thaw‐induced land‐cover change in the Canadian subarctic: implications for water resources |
title_fullStr |
Permafrost‐thaw‐induced land‐cover change in the Canadian subarctic: implications for water resources |
title_full_unstemmed |
Permafrost‐thaw‐induced land‐cover change in the Canadian subarctic: implications for water resources |
title_sort |
permafrost‐thaw‐induced land‐cover change in the canadian subarctic: implications for water resources |
publisher |
Wiley |
publishDate |
2010 |
url |
http://dx.doi.org/10.1002/hyp.7894 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.7894 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.7894 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
permafrost Subarctic |
genre_facet |
permafrost Subarctic |
op_source |
Hydrological Processes volume 25, issue 1, page 152-158 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.7894 |
container_title |
Hydrological Processes |
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25 |
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1 |
container_start_page |
152 |
op_container_end_page |
158 |
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1802648875748556800 |