Variation of Ground Surface Freezing/Thawing Index in China under the CMIP6 Warming Scenarios
As an important parameter in permafrost research, the annual ground surface freezing/thawing index is widely used in the variation of permafrost. In addition, it is also an important indicator in climatology, providing a large amount of theoretical basis for the assessment of climate change. Based o...
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2022
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Online Access: | https://doi.org/10.3390/su142114458 https://doaj.org/article/e736d886f31544c68703ffc22a9d1628 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:e736d886f31544c68703ffc22a9d1628 2023-05-15T17:57:24+02:00 Variation of Ground Surface Freezing/Thawing Index in China under the CMIP6 Warming Scenarios Xianglong Li Ze Zhang Andrey Melnikov Mingyi Zhang Doudou Jin Jinbang Zhai 2022-11-01 https://doi.org/10.3390/su142114458 https://doaj.org/article/e736d886f31544c68703ffc22a9d1628 en eng MDPI AG doi:10.3390/su142114458 2071-1050 https://doaj.org/article/e736d886f31544c68703ffc22a9d1628 undefined Sustainability, Vol 14, Iss 14458, p 14458 (2022) China ground surface freezing/thawing index CMIP6 SSP warming scenarios envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.3390/su142114458 2023-01-22T18:19:40Z As an important parameter in permafrost research, the annual ground surface freezing/thawing index is widely used in the variation of permafrost. In addition, it is also an important indicator in climatology, providing a large amount of theoretical basis for the assessment of climate change. Based on the ground surface temperature data recorded at 707 meteorological stations from 1960 to 2020, the ground surface freezing/thawing index in China were calculated. The results showed that over the past six decades, the thawing index has shown an upward trend, whereas the freezing index has shown a downward trend, and the trend is stronger around 2000. The results of the R/S-based analysis indicate that the freezing/thawing index will remain on a decreasing/increasing trend for some time to come. Based on the five warming scenarios published by Coupled Model Intercomparison Project Phase 6 (CMIP6), the spatial–temporal variation characteristics of the ground surface freezing/thawing index in China during 2020–2100 was simulated. It was found that under SSP3-7.0 and SSP5-8.5 scenarios, the freezing/thawing index may be 0 °C-days in 2080 and 2070, respectively, which may imply that the ground surface freezing process in some regions of China may disappear. Article in Journal/Newspaper permafrost Unknown Sustainability 14 21 14458 |
institution |
Open Polar |
collection |
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op_collection_id |
fttriple |
language |
English |
topic |
China ground surface freezing/thawing index CMIP6 SSP warming scenarios envir geo |
spellingShingle |
China ground surface freezing/thawing index CMIP6 SSP warming scenarios envir geo Xianglong Li Ze Zhang Andrey Melnikov Mingyi Zhang Doudou Jin Jinbang Zhai Variation of Ground Surface Freezing/Thawing Index in China under the CMIP6 Warming Scenarios |
topic_facet |
China ground surface freezing/thawing index CMIP6 SSP warming scenarios envir geo |
description |
As an important parameter in permafrost research, the annual ground surface freezing/thawing index is widely used in the variation of permafrost. In addition, it is also an important indicator in climatology, providing a large amount of theoretical basis for the assessment of climate change. Based on the ground surface temperature data recorded at 707 meteorological stations from 1960 to 2020, the ground surface freezing/thawing index in China were calculated. The results showed that over the past six decades, the thawing index has shown an upward trend, whereas the freezing index has shown a downward trend, and the trend is stronger around 2000. The results of the R/S-based analysis indicate that the freezing/thawing index will remain on a decreasing/increasing trend for some time to come. Based on the five warming scenarios published by Coupled Model Intercomparison Project Phase 6 (CMIP6), the spatial–temporal variation characteristics of the ground surface freezing/thawing index in China during 2020–2100 was simulated. It was found that under SSP3-7.0 and SSP5-8.5 scenarios, the freezing/thawing index may be 0 °C-days in 2080 and 2070, respectively, which may imply that the ground surface freezing process in some regions of China may disappear. |
format |
Article in Journal/Newspaper |
author |
Xianglong Li Ze Zhang Andrey Melnikov Mingyi Zhang Doudou Jin Jinbang Zhai |
author_facet |
Xianglong Li Ze Zhang Andrey Melnikov Mingyi Zhang Doudou Jin Jinbang Zhai |
author_sort |
Xianglong Li |
title |
Variation of Ground Surface Freezing/Thawing Index in China under the CMIP6 Warming Scenarios |
title_short |
Variation of Ground Surface Freezing/Thawing Index in China under the CMIP6 Warming Scenarios |
title_full |
Variation of Ground Surface Freezing/Thawing Index in China under the CMIP6 Warming Scenarios |
title_fullStr |
Variation of Ground Surface Freezing/Thawing Index in China under the CMIP6 Warming Scenarios |
title_full_unstemmed |
Variation of Ground Surface Freezing/Thawing Index in China under the CMIP6 Warming Scenarios |
title_sort |
variation of ground surface freezing/thawing index in china under the cmip6 warming scenarios |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/su142114458 https://doaj.org/article/e736d886f31544c68703ffc22a9d1628 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Sustainability, Vol 14, Iss 14458, p 14458 (2022) |
op_relation |
doi:10.3390/su142114458 2071-1050 https://doaj.org/article/e736d886f31544c68703ffc22a9d1628 |
op_rights |
undefined |
op_doi |
https://doi.org/10.3390/su142114458 |
container_title |
Sustainability |
container_volume |
14 |
container_issue |
21 |
container_start_page |
14458 |
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