气候变化领域集成服务门户(CCPortal): Insights into a remote cryosphere: A multi-method approach to assess permafrost occurrence at the Qugaqie basin, western Nyainqêntanglha Range, Tibetan Plateau

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DOI	10.5194/tc-15-149-2021
	Insights into a remote cryosphere: A multi-method approach to assess permafrost occurrence at the Qugaqie basin, western Nyainqêntanglha Range, Tibetan Plateau
	Buckel J.; Reinosch E.; Hördt A.; Zhang F.; Riedel B.; Gerke M.; Schwalb A.; Mäusbacher R.
发表日期	2021
ISSN	19940416
起始页码	149
结束页码	168
卷号	15 期号:1
英文摘要	Permafrost as a climate-sensitive parameter and its occurrence and distribution play an important role in the observation of global warming. However, field-based permafrost distribution data and information on the subsurface ice content in the large area of the southern mountainous Tibetan Plateau (TP) are very sparse. Existing models based on boreholes and remote sensing approaches suggest permafrost probabilities for most of the Tibetan mountain ranges. Field data to validate permafrost models are generally lacking because access to the mountain regions in extreme altitudes is limited. The study provides geomorphological and geophysical field data from a north-orientated high-altitude catchment in the western Nyainqêntanglha Range. A multimethod approach combines (A) geomorphological mapping, (B) electrical resistivity tomography (ERT) to identify subsurface ice occurrence and (C) interferometric synthetic aperture radar (InSAR) analysis to derive multi-annual creeping rates. The combination of the resulting data allows an assessment of the lower occurrence of permafrost in a range of 5350 and 5500m above sea level (a.s.l.) in the Qugaqie basin. Periglacial landforms such as rock glaciers and protalus ramparts are located in the periglacial zone from 5300- 5600ma.s.l. The altitudinal periglacial landform distribution is supported by ERT data detecting ice-rich permafrost in a rock glacier at 5500ma.s.l. and ice lenses around the rock glacier (5450ma.s.l.). The highest multiannual creeping rates up to 150mmyr-1are typically observed on these rock glaciers. This study closes the gap of unknown state of periglacial features and potential permafrost occurrence in a high-elevated basin in the western Nyainqêntanglha Range (Tibetan Plateau). © 2021 AVS Science and Technology Society. All rights reserved.
英文关键词	catchment; global warming; interferometry; periglacial landform; permafrost; remote sensing; rock glacier; synthetic aperture radar; tomography; Qinghai-Xizang Plateau
语种	英语
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202287
作者单位	Institute for Geophysics and Extraterrestrial Physics, Technische Universiät Braunschweig, Braunschweig, 38106, Germany; Institute for Geodesy and Photogrammetry, Technische Universiät Braunschweig, Braunschweig, 38106, Germany; Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China; Institute of Geosystems and Bioindication, Technische Universiät Braunschweig, Braunschweig, 38106, Germany; Geographical Institute, Friedrich Schiller University of Jena, Jena, 07743, Germany
推荐引用方式 GB/T 7714	Buckel J.,Reinosch E.,Hördt A.,et al. Insights into a remote cryosphere: A multi-method approach to assess permafrost occurrence at the Qugaqie basin, western Nyainqêntanglha Range, Tibetan Plateau[J],2021,15(1).
APA	Buckel J..,Reinosch E..,Hördt A..,Zhang F..,Riedel B..,...&Mäusbacher R..(2021).Insights into a remote cryosphere: A multi-method approach to assess permafrost occurrence at the Qugaqie basin, western Nyainqêntanglha Range, Tibetan Plateau.Cryosphere,15(1).
MLA	Buckel J.,et al."Insights into a remote cryosphere: A multi-method approach to assess permafrost occurrence at the Qugaqie basin, western Nyainqêntanglha Range, Tibetan Plateau".Cryosphere 15.1(2021).