Evolution of the thermal state of permafrost under climate warming in Central Yakutia
The relevance of the problem under review is explained by the need to study the thermal response of permafrost to the modern climate change. Evolution of the thermal state of grounds has been studied with a view to evaluate the effects of modern climate warming on permafrost in Central Yakutia. The...
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crsagepubl:10.1177/0959683619855959 2024-09-15T17:34:52+00:00 Evolution of the thermal state of permafrost under climate warming in Central Yakutia Varlamov, Stepan P Skachkov, Yuri B Skryabin, Pavel N 2019 http://dx.doi.org/10.1177/0959683619855959 http://journals.sagepub.com/doi/pdf/10.1177/0959683619855959 http://journals.sagepub.com/doi/full-xml/10.1177/0959683619855959 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 29, issue 9, page 1401-1410 ISSN 0959-6836 1477-0911 journal-article 2019 crsagepubl https://doi.org/10.1177/0959683619855959 2024-08-12T04:32:04Z The relevance of the problem under review is explained by the need to study the thermal response of permafrost to the modern climate change. Evolution of the thermal state of grounds has been studied with a view to evaluate the effects of modern climate warming on permafrost in Central Yakutia. The leading method to study this problem is the arrangement and performance of long-term monitoring observations of the permafrost thermal state that enable quantitative evaluation of the thermal response of upper permafrost layers to climatic fluctuations of recent decades. The analysis of long-term records from weather stations in the region has clearly revealed one of the highest increasing trends in the mean annual air temperature in northern Russia. Quantitative relationships in the long-term variability of ground thermal parameters, such as ground temperature at the bottom of the active layer, at the bottom of the annual heat exchange layer, and active thaw depth, have been established. The thermal state dynamics of the annual heat exchange layer under climate warming indicates that both warm and cold permafrost are thermally stable. Short-term variability of the snow accumulation regime is the main factor controlling the thermal state of the ground in permafrost landscapes. The active-layer thickness is characterized by low interannual variability and exhibits little response to climate warming, with no statistically meaningful increasing or decreasing trend. The results of ground thermal monitoring can be extended to similar landscapes in the region, providing a reliable basis for predicting heat transfer in natural landscapes. Article in Journal/Newspaper Active layer thickness permafrost Yakutia SAGE Publications The Holocene 29 9 1401 1410 |
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English |
description |
The relevance of the problem under review is explained by the need to study the thermal response of permafrost to the modern climate change. Evolution of the thermal state of grounds has been studied with a view to evaluate the effects of modern climate warming on permafrost in Central Yakutia. The leading method to study this problem is the arrangement and performance of long-term monitoring observations of the permafrost thermal state that enable quantitative evaluation of the thermal response of upper permafrost layers to climatic fluctuations of recent decades. The analysis of long-term records from weather stations in the region has clearly revealed one of the highest increasing trends in the mean annual air temperature in northern Russia. Quantitative relationships in the long-term variability of ground thermal parameters, such as ground temperature at the bottom of the active layer, at the bottom of the annual heat exchange layer, and active thaw depth, have been established. The thermal state dynamics of the annual heat exchange layer under climate warming indicates that both warm and cold permafrost are thermally stable. Short-term variability of the snow accumulation regime is the main factor controlling the thermal state of the ground in permafrost landscapes. The active-layer thickness is characterized by low interannual variability and exhibits little response to climate warming, with no statistically meaningful increasing or decreasing trend. The results of ground thermal monitoring can be extended to similar landscapes in the region, providing a reliable basis for predicting heat transfer in natural landscapes. |
format |
Article in Journal/Newspaper |
author |
Varlamov, Stepan P Skachkov, Yuri B Skryabin, Pavel N |
spellingShingle |
Varlamov, Stepan P Skachkov, Yuri B Skryabin, Pavel N Evolution of the thermal state of permafrost under climate warming in Central Yakutia |
author_facet |
Varlamov, Stepan P Skachkov, Yuri B Skryabin, Pavel N |
author_sort |
Varlamov, Stepan P |
title |
Evolution of the thermal state of permafrost under climate warming in Central Yakutia |
title_short |
Evolution of the thermal state of permafrost under climate warming in Central Yakutia |
title_full |
Evolution of the thermal state of permafrost under climate warming in Central Yakutia |
title_fullStr |
Evolution of the thermal state of permafrost under climate warming in Central Yakutia |
title_full_unstemmed |
Evolution of the thermal state of permafrost under climate warming in Central Yakutia |
title_sort |
evolution of the thermal state of permafrost under climate warming in central yakutia |
publisher |
SAGE Publications |
publishDate |
2019 |
url |
http://dx.doi.org/10.1177/0959683619855959 http://journals.sagepub.com/doi/pdf/10.1177/0959683619855959 http://journals.sagepub.com/doi/full-xml/10.1177/0959683619855959 |
genre |
Active layer thickness permafrost Yakutia |
genre_facet |
Active layer thickness permafrost Yakutia |
op_source |
The Holocene volume 29, issue 9, page 1401-1410 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0959683619855959 |
container_title |
The Holocene |
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29 |
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9 |
container_start_page |
1401 |
op_container_end_page |
1410 |
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1810431374958526464 |