Spatiotemporal Variations in the Air Freezing and Thawing Index Over the Mongolian Plateau From 1901 to 2019
The Mongolian Plateau is located in the permafrost transitional zone between high-altitudinal and high-latitudinal permafrost regions in the Northern Hemisphere. Current knowledge of the thermal state and changes in the permafrost on the Mongolian Plateau is limited. This study adopted an improved c...
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ftdoajarticles:oai:doaj.org/article:2de52b5e3a284970b94bcf85da08e471 2023-05-15T17:55:46+02:00 Spatiotemporal Variations in the Air Freezing and Thawing Index Over the Mongolian Plateau From 1901 to 2019 Xin Ma Tonghua Wu Xiaofan Zhu Peiqing Lou Dong Wang Saruulzaya Adiya Dashtseren Avirmed Battogtokh Dorjgotov Jie Chen Chengpeng Shang Amin Wen Yune La Xianhua Wei Ren Li 2022-05-01T00:00:00Z https://doi.org/10.3389/fenvs.2022.875450 https://doaj.org/article/2de52b5e3a284970b94bcf85da08e471 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fenvs.2022.875450/full https://doaj.org/toc/2296-665X 2296-665X doi:10.3389/fenvs.2022.875450 https://doaj.org/article/2de52b5e3a284970b94bcf85da08e471 Frontiers in Environmental Science, Vol 10 (2022) freezing and thawing index permafrost CRU Mongolian plateau change-point Environmental sciences GE1-350 article 2022 ftdoajarticles https://doi.org/10.3389/fenvs.2022.875450 2022-12-31T03:21:16Z The Mongolian Plateau is located in the permafrost transitional zone between high-altitudinal and high-latitudinal permafrost regions in the Northern Hemisphere. Current knowledge of the thermal state and changes in the permafrost on the Mongolian Plateau is limited. This study adopted an improved calculation method of the Mongolian Plateau air freezing and thawing index using the monthly air temperature reanalysis dataset from the Climate Research Unit (CRU). The spatial and temporal variation characteristics from 1901 to 2019 were further assessed by the Mann–Kendall (M–K) test and spatial interpolation methods. The results indicate that the spatial distributions of the freezing and thawing index show clear latitudinal zonality. Over the study period, the air freezing index decreased by 4.1°C·d/yr, and the air thawing index increased by 2.3°C·d/yr. The change point in the air thawing index appeared in 1995 (p < 0.05) based on the M–K method, in contrast to the so-called hiatus in global warming. Our results reveal rapid warming on the Mongolian Plateau, especially in the permafrost region, and are useful for studying permafrost changes on the Mongolian Plateau. Article in Journal/Newspaper permafrost Directory of Open Access Journals: DOAJ Articles Kendall ENVELOPE(-59.828,-59.828,-63.497,-63.497) Frontiers in Environmental Science 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
freezing and thawing index permafrost CRU Mongolian plateau change-point Environmental sciences GE1-350 |
spellingShingle |
freezing and thawing index permafrost CRU Mongolian plateau change-point Environmental sciences GE1-350 Xin Ma Tonghua Wu Xiaofan Zhu Peiqing Lou Dong Wang Saruulzaya Adiya Dashtseren Avirmed Battogtokh Dorjgotov Jie Chen Chengpeng Shang Amin Wen Yune La Xianhua Wei Ren Li Spatiotemporal Variations in the Air Freezing and Thawing Index Over the Mongolian Plateau From 1901 to 2019 |
topic_facet |
freezing and thawing index permafrost CRU Mongolian plateau change-point Environmental sciences GE1-350 |
description |
The Mongolian Plateau is located in the permafrost transitional zone between high-altitudinal and high-latitudinal permafrost regions in the Northern Hemisphere. Current knowledge of the thermal state and changes in the permafrost on the Mongolian Plateau is limited. This study adopted an improved calculation method of the Mongolian Plateau air freezing and thawing index using the monthly air temperature reanalysis dataset from the Climate Research Unit (CRU). The spatial and temporal variation characteristics from 1901 to 2019 were further assessed by the Mann–Kendall (M–K) test and spatial interpolation methods. The results indicate that the spatial distributions of the freezing and thawing index show clear latitudinal zonality. Over the study period, the air freezing index decreased by 4.1°C·d/yr, and the air thawing index increased by 2.3°C·d/yr. The change point in the air thawing index appeared in 1995 (p < 0.05) based on the M–K method, in contrast to the so-called hiatus in global warming. Our results reveal rapid warming on the Mongolian Plateau, especially in the permafrost region, and are useful for studying permafrost changes on the Mongolian Plateau. |
format |
Article in Journal/Newspaper |
author |
Xin Ma Tonghua Wu Xiaofan Zhu Peiqing Lou Dong Wang Saruulzaya Adiya Dashtseren Avirmed Battogtokh Dorjgotov Jie Chen Chengpeng Shang Amin Wen Yune La Xianhua Wei Ren Li |
author_facet |
Xin Ma Tonghua Wu Xiaofan Zhu Peiqing Lou Dong Wang Saruulzaya Adiya Dashtseren Avirmed Battogtokh Dorjgotov Jie Chen Chengpeng Shang Amin Wen Yune La Xianhua Wei Ren Li |
author_sort |
Xin Ma |
title |
Spatiotemporal Variations in the Air Freezing and Thawing Index Over the Mongolian Plateau From 1901 to 2019 |
title_short |
Spatiotemporal Variations in the Air Freezing and Thawing Index Over the Mongolian Plateau From 1901 to 2019 |
title_full |
Spatiotemporal Variations in the Air Freezing and Thawing Index Over the Mongolian Plateau From 1901 to 2019 |
title_fullStr |
Spatiotemporal Variations in the Air Freezing and Thawing Index Over the Mongolian Plateau From 1901 to 2019 |
title_full_unstemmed |
Spatiotemporal Variations in the Air Freezing and Thawing Index Over the Mongolian Plateau From 1901 to 2019 |
title_sort |
spatiotemporal variations in the air freezing and thawing index over the mongolian plateau from 1901 to 2019 |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fenvs.2022.875450 https://doaj.org/article/2de52b5e3a284970b94bcf85da08e471 |
long_lat |
ENVELOPE(-59.828,-59.828,-63.497,-63.497) |
geographic |
Kendall |
geographic_facet |
Kendall |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Frontiers in Environmental Science, Vol 10 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fenvs.2022.875450/full https://doaj.org/toc/2296-665X 2296-665X doi:10.3389/fenvs.2022.875450 https://doaj.org/article/2de52b5e3a284970b94bcf85da08e471 |
op_doi |
https://doi.org/10.3389/fenvs.2022.875450 |
container_title |
Frontiers in Environmental Science |
container_volume |
10 |
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1766163767331127296 |