Preliminary simulation of spatial distribution patterns of soil thermal conductivity in permafrost of the Arctic
ABSTRACTThe Arctic amplification (AA) has exacerbated permafrost degradation, posing a serious threat to infrastructure security and other areas. Therefore, it is crucial to accurately assess the current status and future changes of permafrost, and reliable soil thermal conductivity (STC) is an impo...
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ftdoajarticles:oai:doaj.org/article:26ccbd1df1aa4bcbabd980d792092690 2023-12-03T10:16:35+01:00 Preliminary simulation of spatial distribution patterns of soil thermal conductivity in permafrost of the Arctic Wenhao Liu Ren Li Tonghua Wu Xiaoxi Shi Xiaodong Wu Lin Zhao Guojie Hu Jimin Yao Junjie Ma Shenning Wang Yao Xiao Xiaofan Zhu Jianzong Shi Dong Wang Yongping Qiao 2023-12-01T00:00:00Z https://doi.org/10.1080/17538947.2023.2274417 https://doaj.org/article/26ccbd1df1aa4bcbabd980d792092690 EN eng Taylor & Francis Group https://www.tandfonline.com/doi/10.1080/17538947.2023.2274417 https://doaj.org/toc/1753-8947 https://doaj.org/toc/1753-8955 doi:10.1080/17538947.2023.2274417 1753-8955 1753-8947 https://doaj.org/article/26ccbd1df1aa4bcbabd980d792092690 International Journal of Digital Earth, Vol 16, Iss 2, Pp 4512-4532 (2023) Permafrost soil thermal conductivity Arctic spatial pattern machine learning Mathematical geography. Cartography GA1-1776 article 2023 ftdoajarticles https://doi.org/10.1080/17538947.2023.2274417 2023-11-05T01:41:15Z ABSTRACTThe Arctic amplification (AA) has exacerbated permafrost degradation, posing a serious threat to infrastructure security and other areas. Therefore, it is crucial to accurately assess the current status and future changes of permafrost, and reliable soil thermal conductivity (STC) is an important prerequisite for permafrost prediction. However, few methods and products are available for regional-scale STC simulations in permafrost of the Arctic, which lead to greater uncertainty in the simulation of land surface temperatures. This study conducted a preliminary STC simulation based on the XGBoost method. The results show that the average STC during the freezing period is between 0.71∼0.73 W·m−1K−1, and around 0.67 W·m−1K−1 during the thawing period; The variation of STC between the thawing and freezing period ranged from −0.34–0.23 W·m−1K−1, with an average value of −0.02 W·m−1K−1; The areas where STC of the thawing period is smaller than that of the freezing period are mainly concentrated in the marginal areas near the sea on the continental side of North America and in the typical areas of plains, lowlands, and plateaus on the continental side of Eurasia. The areas with large STC during the thawing period are concentrated in mountainous areas. Article in Journal/Newspaper Arctic permafrost Directory of Open Access Journals: DOAJ Articles Arctic International Journal of Digital Earth 16 2 4512 4532 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Permafrost soil thermal conductivity Arctic spatial pattern machine learning Mathematical geography. Cartography GA1-1776 |
spellingShingle |
Permafrost soil thermal conductivity Arctic spatial pattern machine learning Mathematical geography. Cartography GA1-1776 Wenhao Liu Ren Li Tonghua Wu Xiaoxi Shi Xiaodong Wu Lin Zhao Guojie Hu Jimin Yao Junjie Ma Shenning Wang Yao Xiao Xiaofan Zhu Jianzong Shi Dong Wang Yongping Qiao Preliminary simulation of spatial distribution patterns of soil thermal conductivity in permafrost of the Arctic |
topic_facet |
Permafrost soil thermal conductivity Arctic spatial pattern machine learning Mathematical geography. Cartography GA1-1776 |
description |
ABSTRACTThe Arctic amplification (AA) has exacerbated permafrost degradation, posing a serious threat to infrastructure security and other areas. Therefore, it is crucial to accurately assess the current status and future changes of permafrost, and reliable soil thermal conductivity (STC) is an important prerequisite for permafrost prediction. However, few methods and products are available for regional-scale STC simulations in permafrost of the Arctic, which lead to greater uncertainty in the simulation of land surface temperatures. This study conducted a preliminary STC simulation based on the XGBoost method. The results show that the average STC during the freezing period is between 0.71∼0.73 W·m−1K−1, and around 0.67 W·m−1K−1 during the thawing period; The variation of STC between the thawing and freezing period ranged from −0.34–0.23 W·m−1K−1, with an average value of −0.02 W·m−1K−1; The areas where STC of the thawing period is smaller than that of the freezing period are mainly concentrated in the marginal areas near the sea on the continental side of North America and in the typical areas of plains, lowlands, and plateaus on the continental side of Eurasia. The areas with large STC during the thawing period are concentrated in mountainous areas. |
format |
Article in Journal/Newspaper |
author |
Wenhao Liu Ren Li Tonghua Wu Xiaoxi Shi Xiaodong Wu Lin Zhao Guojie Hu Jimin Yao Junjie Ma Shenning Wang Yao Xiao Xiaofan Zhu Jianzong Shi Dong Wang Yongping Qiao |
author_facet |
Wenhao Liu Ren Li Tonghua Wu Xiaoxi Shi Xiaodong Wu Lin Zhao Guojie Hu Jimin Yao Junjie Ma Shenning Wang Yao Xiao Xiaofan Zhu Jianzong Shi Dong Wang Yongping Qiao |
author_sort |
Wenhao Liu |
title |
Preliminary simulation of spatial distribution patterns of soil thermal conductivity in permafrost of the Arctic |
title_short |
Preliminary simulation of spatial distribution patterns of soil thermal conductivity in permafrost of the Arctic |
title_full |
Preliminary simulation of spatial distribution patterns of soil thermal conductivity in permafrost of the Arctic |
title_fullStr |
Preliminary simulation of spatial distribution patterns of soil thermal conductivity in permafrost of the Arctic |
title_full_unstemmed |
Preliminary simulation of spatial distribution patterns of soil thermal conductivity in permafrost of the Arctic |
title_sort |
preliminary simulation of spatial distribution patterns of soil thermal conductivity in permafrost of the arctic |
publisher |
Taylor & Francis Group |
publishDate |
2023 |
url |
https://doi.org/10.1080/17538947.2023.2274417 https://doaj.org/article/26ccbd1df1aa4bcbabd980d792092690 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost |
genre_facet |
Arctic permafrost |
op_source |
International Journal of Digital Earth, Vol 16, Iss 2, Pp 4512-4532 (2023) |
op_relation |
https://www.tandfonline.com/doi/10.1080/17538947.2023.2274417 https://doaj.org/toc/1753-8947 https://doaj.org/toc/1753-8955 doi:10.1080/17538947.2023.2274417 1753-8955 1753-8947 https://doaj.org/article/26ccbd1df1aa4bcbabd980d792092690 |
op_doi |
https://doi.org/10.1080/17538947.2023.2274417 |
container_title |
International Journal of Digital Earth |
container_volume |
16 |
container_issue |
2 |
container_start_page |
4512 |
op_container_end_page |
4532 |
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1784263524493557760 |