Accelerating permafrost collapse on the eastern Tibetan Plateau

• Published in: Environmental Research Letters
• Main Authors: Gao, Tanguang, Zhang, Yulan, Kang, Shichang, Abbott, Benjamin W, Wang, Xiaoming, Zhang, Tingjun, Yi, Shuhua, Gustafsson, Örjan
• Other Authors: Ministry of Science and Technology of the People’s Republic of China, European Research Consortium for Informatics and Mathematics, Chinese Academy of Sciences, National Natural Science Foundation of China
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2021
• Subjects: permafrost
• Online Access: http://dx.doi.org/10.1088/1748-9326/abf7f0; https://iopscience.iop.org/article/10.1088/1748-9326/abf7f0; https://iopscience.iop.org/article/10.1088/1748-9326/abf7f0/pdf

Abstract Permafrost collapse can rapidly change regional soil-thermal and hydrological conditions, potentially stimulating production of climate-warming gases. Here, we report on rate and extent of permafrost collapse on the extensive Tibetan Plateau, also known as the Asian Water Tower and the Third Pole. Combined data from in situ measurements, unmanned aerial vehicles (UAV), manned aerial photographs, and satellite images suggest that permafrost collapse was accelerating across the Eastern Tibetan Plateau. From 1969 to 2017, the area of collapsed permafrost has increased by approximately a factor of 40, with 70% of the collapsed area forming since 2004. These widespread perturbations to the Tibetan Plateau permafrost could trigger changes in local ecosystem state and amplify large-scale permafrost climate feedbacks.