Recent ground surface warming and its effects on permafrost on the central Qinghai‐Tibet Plateau
Abstract In this study, the ground surface temperature (GST) records from 16 meteorological stations, which are located in or adjacent to permafrost regions on the central Qinghai‐Tibet Plateau (QTP), are analysed using Mann–Kendal test and Sen's slope estimate methods. We revealed that the GST...
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crwiley:10.1002/joc.3479 2024-09-15T18:29:37+00:00 Recent ground surface warming and its effects on permafrost on the central Qinghai‐Tibet Plateau Wu, Tonghua Zhao, Lin Li, Ren Wang, Qinxue Xie, Changwei Pang, Qiangqiang 2012 http://dx.doi.org/10.1002/joc.3479 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3479 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3479 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 33, issue 4, page 920-930 ISSN 0899-8418 1097-0088 journal-article 2012 crwiley https://doi.org/10.1002/joc.3479 2024-08-27T04:25:24Z Abstract In this study, the ground surface temperature (GST) records from 16 meteorological stations, which are located in or adjacent to permafrost regions on the central Qinghai‐Tibet Plateau (QTP), are analysed using Mann–Kendal test and Sen's slope estimate methods. We revealed that the GSTs have shown statistically significant warming. On average, mean annual ground surface temperature has increased at a rate of 0.60 °C decade −1 over the period of 1980–2007, which is more pronounced than the increase of mean annual air temperature on the plateau. The winter ground surface warming is especially prominent, which is similar to the seasonal trends in changes of air temperature. As important parameters to assess the changes of ground thermal regime in cold regions, surface freezing and thawing indices were also studied. The nonparametric statistic test and estimate indicate that surface freezing and thawing indices both show significant variations (−111.2 and 125.0 °C d decade −1 , respectively) on the central QTP. The intensive ground surface warming is responsible for the concurrent increase in permafrost temperatures at the long‐term observation sites on the plateau. The close correlations between ground surface and permafrost temperatures indicate that the dramatic ground surface warming could have significant influence on the change of permafrost thermal regime in the study region. Copyright © 2012 Royal Meteorological Society Article in Journal/Newspaper permafrost Wiley Online Library International Journal of Climatology 33 4 920 930 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract In this study, the ground surface temperature (GST) records from 16 meteorological stations, which are located in or adjacent to permafrost regions on the central Qinghai‐Tibet Plateau (QTP), are analysed using Mann–Kendal test and Sen's slope estimate methods. We revealed that the GSTs have shown statistically significant warming. On average, mean annual ground surface temperature has increased at a rate of 0.60 °C decade −1 over the period of 1980–2007, which is more pronounced than the increase of mean annual air temperature on the plateau. The winter ground surface warming is especially prominent, which is similar to the seasonal trends in changes of air temperature. As important parameters to assess the changes of ground thermal regime in cold regions, surface freezing and thawing indices were also studied. The nonparametric statistic test and estimate indicate that surface freezing and thawing indices both show significant variations (−111.2 and 125.0 °C d decade −1 , respectively) on the central QTP. The intensive ground surface warming is responsible for the concurrent increase in permafrost temperatures at the long‐term observation sites on the plateau. The close correlations between ground surface and permafrost temperatures indicate that the dramatic ground surface warming could have significant influence on the change of permafrost thermal regime in the study region. Copyright © 2012 Royal Meteorological Society |
format |
Article in Journal/Newspaper |
author |
Wu, Tonghua Zhao, Lin Li, Ren Wang, Qinxue Xie, Changwei Pang, Qiangqiang |
spellingShingle |
Wu, Tonghua Zhao, Lin Li, Ren Wang, Qinxue Xie, Changwei Pang, Qiangqiang Recent ground surface warming and its effects on permafrost on the central Qinghai‐Tibet Plateau |
author_facet |
Wu, Tonghua Zhao, Lin Li, Ren Wang, Qinxue Xie, Changwei Pang, Qiangqiang |
author_sort |
Wu, Tonghua |
title |
Recent ground surface warming and its effects on permafrost on the central Qinghai‐Tibet Plateau |
title_short |
Recent ground surface warming and its effects on permafrost on the central Qinghai‐Tibet Plateau |
title_full |
Recent ground surface warming and its effects on permafrost on the central Qinghai‐Tibet Plateau |
title_fullStr |
Recent ground surface warming and its effects on permafrost on the central Qinghai‐Tibet Plateau |
title_full_unstemmed |
Recent ground surface warming and its effects on permafrost on the central Qinghai‐Tibet Plateau |
title_sort |
recent ground surface warming and its effects on permafrost on the central qinghai‐tibet plateau |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/joc.3479 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3479 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3479 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
International Journal of Climatology volume 33, issue 4, page 920-930 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.3479 |
container_title |
International Journal of Climatology |
container_volume |
33 |
container_issue |
4 |
container_start_page |
920 |
op_container_end_page |
930 |
_version_ |
1810471033132548096 |