globalchange  > 气候减缓与适应
DOI: 10.1029/2018JD028442
Scopus记录号: 2-s2.0-85052236529
论文题名:
Thermal Characteristics and Recent Changes of Permafrost in the Upper Reaches of the Heihe River Basin, Western China
作者: Cao B.; Zhang T.; Peng X.; Mu C.; Wang Q.; Zheng L.; Wang K.; Zhong X.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:15
起始页码: 7935
结束页码: 7949
语种: 英语
英文关键词: Heihe River Basin ; permafrost ; Qilian Mountains ; seasonally frozen ground
英文摘要: To investigate the thermal characteristics and dynamics of permafrost as well as seasonally frozen ground over the upper reaches of the Heihe River Basin (URHR), an observation network with 14 boreholes was established during 2011–2014. The in situ measurements indicated mean annual air temperature that ranged from −5.2 to −2.3°C at the monitored elevation range of ∼3,600–4,150 m, and mean annual ground surface temperature that ranged from −1.3 to 1.7°C during 2013–2017. The mean annual ground temperature at 16- to 18-m depth ranged from −1.71°C on the high (>4,000 m above sea level) north facing slope to about 0-C around areas near the lower limit of permafrost. Active layer thickness at the monitored sites varied significantly with the range of 0.77–4.90 m during 2011–2017, and maximum frozen depth in seasonally frozen ground was about 5 m. Permafrost thickness was between ∼136 m and less than 10 m. Both permafrost and seasonally frozen ground were found to be subject to serious warming during the measured period in the URHR. This study provides new quantitative insights for permafrost and seasonally frozen ground in the URHR. ©2018. American Geophysical Union. All Rights Reserved.
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被引频次[WOS]:48   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113280
Appears in Collections:气候减缓与适应

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作者单位: Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, China; State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China; Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan, China; Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, United States; Key Laboratory of Remote Sensing of Gansu Province, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China

Recommended Citation:
Cao B.,Zhang T.,Peng X.,et al. Thermal Characteristics and Recent Changes of Permafrost in the Upper Reaches of the Heihe River Basin, Western China[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(15)
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