气候变化领域集成服务门户(CCPortal): Non-Negligible Contribution to Seasonally Thawing Depth of Active Layer From Extreme Warming Events in the Tanggula Permafrost Region of Qinghai-Tibet Plateau

CCPortal

DOI	10.1029/2021JD035088
	Non-Negligible Contribution to Seasonally Thawing Depth of Active Layer From Extreme Warming Events in the Tanggula Permafrost Region of Qinghai-Tibet Plateau
	Zhu X.; Wu T.; Hu G.; Ni J.; Zou D.; Chen J.; Li X.; Wu X.; Li R.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:17
英文摘要	Despite rising interest in the impacts of long-term gradual climate warming on permafrost changes, little is known about the changes in active-layer thermal conditions after transient and abrupt extreme warming events. Here, we investigated the Tanggula permafrost region of the Qinghai-Tibet Plateau using in situ meteorological and active-layer hydrothermal data. The results showed that the magnitude of variation in the thermal condition of the active layer was positively correlated with the duration and intensity of extreme warming events. The average contribution rate of extreme warming events to seasonally thawing depth was 13.5% ± 4.9% from April to October, and higher rates occurred in the initial and final stages of the thawing process. The thawing process of the active layer was the main factor controlling the thermal responses of this layer to extreme warming events. Moreover, the interannual differences in active-layer thermal conditions during the thawing period were likely related to the interannual differences in the frequency and intensity of extreme warming events. © 2021. American Geophysical Union. All Rights Reserved.
来源期刊	Journal of Geophysical Research: Atmospheres
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237036
作者单位	Cryosphere Research Station on the Qinghai-Tibet Plateau, State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China; University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Zhu X.,Wu T.,Hu G.,et al. Non-Negligible Contribution to Seasonally Thawing Depth of Active Layer From Extreme Warming Events in the Tanggula Permafrost Region of Qinghai-Tibet Plateau[J]. 中国科学院西北生态环境资源研究院,2021,126(17).
APA	Zhu X..,Wu T..,Hu G..,Ni J..,Zou D..,...&Li R..(2021).Non-Negligible Contribution to Seasonally Thawing Depth of Active Layer From Extreme Warming Events in the Tanggula Permafrost Region of Qinghai-Tibet Plateau.Journal of Geophysical Research: Atmospheres,126(17).
MLA	Zhu X.,et al."Non-Negligible Contribution to Seasonally Thawing Depth of Active Layer From Extreme Warming Events in the Tanggula Permafrost Region of Qinghai-Tibet Plateau".Journal of Geophysical Research: Atmospheres 126.17(2021).