Global warming accelerates the upfreezing of permafrost in arid middle Tianshan Mountains
Upfreezing is an important geomorphic process in the periglacial environment. It is a product of cold climate and thus an important part of the cryospheric processes. Based on the long-term positioning observations in the source area of the Urumqi River, this article represents an in-depth discussio...
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科学通报 英文版
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ftpekinguniv:oai:localhost:20.500.11897/160980 2023-05-15T17:57:52+02:00 Global warming accelerates the upfreezing of permafrost in arid middle Tianshan Mountains Li ChuanChuan Chen YiXin Nie ZhenYu Cui ZhiJiu Liu GengNian Liu, GN (reprint author), Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. 2013 https://hdl.handle.net/20.500.11897/160980 https://doi.org/10.1007/s11434-013-5891-2 en eng 科学通报 英文版 CHINESE SCIENCE BULLETIN.2013,58,(31),3806-3814. 827669 1001-6538 http://hdl.handle.net/20.500.11897/160980 1861-9541 doi:10.1007/s11434-013-5891-2 WOS:000326823500011 SCI Tianshan Mountains sorted circle upfreezing climate change FROST HEAVE FIELD-MEASUREMENTS VARIABILITY IMPACTS CHINA Journal 2013 ftpekinguniv https://doi.org/20.500.11897/160980 https://doi.org/10.1007/s11434-013-5891-2 2021-08-01T08:06:05Z Upfreezing is an important geomorphic process in the periglacial environment. It is a product of cold climate and thus an important part of the cryospheric processes. Based on the long-term positioning observations in the source area of the Urumqi River, this article represents an in-depth discussion of the characteristics of sorted circles and upfreezing mechanisms in the Tianshan Mountains. In the source area of the Urumqi River, the intensity of upfreezing is the highest within the top 25 cm near the surface, while targets with a diameter of 3 cm are least affected by upfreezing. There is no distinct difference between the centre with fine grains and the margin with coarse debris within the same sorted circle in terms of the intensity of upfreezing. The correlation analysis demonstrates that temperature plays an important role in upfreezing and the development of sorted circles. A long-time positioning observation of sorted circles reveals that periglacial landforms are sensitive to regional climate change and respond quickly to the temperature increase of the recent two decades. Enhanced upfreezing was found to be due to increased soil moisture content. Multidisciplinary Sciences SCI(E) 2 ARTICLE 31 3806-3814 58 Journal/Newspaper permafrost Peking University Institutional Repository (PKU IR) Chinese Science Bulletin 58 31 3806 3814 |
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Open Polar |
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Peking University Institutional Repository (PKU IR) |
op_collection_id |
ftpekinguniv |
language |
English |
topic |
Tianshan Mountains sorted circle upfreezing climate change FROST HEAVE FIELD-MEASUREMENTS VARIABILITY IMPACTS CHINA |
spellingShingle |
Tianshan Mountains sorted circle upfreezing climate change FROST HEAVE FIELD-MEASUREMENTS VARIABILITY IMPACTS CHINA Li ChuanChuan Chen YiXin Nie ZhenYu Cui ZhiJiu Liu GengNian Global warming accelerates the upfreezing of permafrost in arid middle Tianshan Mountains |
topic_facet |
Tianshan Mountains sorted circle upfreezing climate change FROST HEAVE FIELD-MEASUREMENTS VARIABILITY IMPACTS CHINA |
description |
Upfreezing is an important geomorphic process in the periglacial environment. It is a product of cold climate and thus an important part of the cryospheric processes. Based on the long-term positioning observations in the source area of the Urumqi River, this article represents an in-depth discussion of the characteristics of sorted circles and upfreezing mechanisms in the Tianshan Mountains. In the source area of the Urumqi River, the intensity of upfreezing is the highest within the top 25 cm near the surface, while targets with a diameter of 3 cm are least affected by upfreezing. There is no distinct difference between the centre with fine grains and the margin with coarse debris within the same sorted circle in terms of the intensity of upfreezing. The correlation analysis demonstrates that temperature plays an important role in upfreezing and the development of sorted circles. A long-time positioning observation of sorted circles reveals that periglacial landforms are sensitive to regional climate change and respond quickly to the temperature increase of the recent two decades. Enhanced upfreezing was found to be due to increased soil moisture content. Multidisciplinary Sciences SCI(E) 2 ARTICLE 31 3806-3814 58 |
author2 |
Liu, GN (reprint author), Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. |
format |
Journal/Newspaper |
author |
Li ChuanChuan Chen YiXin Nie ZhenYu Cui ZhiJiu Liu GengNian |
author_facet |
Li ChuanChuan Chen YiXin Nie ZhenYu Cui ZhiJiu Liu GengNian |
author_sort |
Li ChuanChuan |
title |
Global warming accelerates the upfreezing of permafrost in arid middle Tianshan Mountains |
title_short |
Global warming accelerates the upfreezing of permafrost in arid middle Tianshan Mountains |
title_full |
Global warming accelerates the upfreezing of permafrost in arid middle Tianshan Mountains |
title_fullStr |
Global warming accelerates the upfreezing of permafrost in arid middle Tianshan Mountains |
title_full_unstemmed |
Global warming accelerates the upfreezing of permafrost in arid middle Tianshan Mountains |
title_sort |
global warming accelerates the upfreezing of permafrost in arid middle tianshan mountains |
publisher |
科学通报 英文版 |
publishDate |
2013 |
url |
https://hdl.handle.net/20.500.11897/160980 https://doi.org/10.1007/s11434-013-5891-2 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
SCI |
op_relation |
CHINESE SCIENCE BULLETIN.2013,58,(31),3806-3814. 827669 1001-6538 http://hdl.handle.net/20.500.11897/160980 1861-9541 doi:10.1007/s11434-013-5891-2 WOS:000326823500011 |
op_doi |
https://doi.org/20.500.11897/160980 https://doi.org/10.1007/s11434-013-5891-2 |
container_title |
Chinese Science Bulletin |
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58 |
container_issue |
31 |
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3806 |
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3814 |
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1766166375279099904 |