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 Nyainqentanglha 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 Nyainqentanglha Range, Tibetan Plateau
	Buckel, Johannes; Reinosch, Eike; Hoerdt, Andreas; Zhang, Fan; Riedel, Bjoern; Gerke, Markus; Schwalb, Antje; Maeusbacher, Roland
通讯作者	Buckel, J (通讯作者)
发表日期	2021
ISSN	1994-0416
EISSN	1994-0424
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 Nyainqentanglha Range. A multi-method 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 5500 m 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 5300-5600 m a.s.l. The altitudinal periglacial landform distribution is supported by ERT data detecting ice-rich permafrost in a rock glacier at 5500 m a.s.l. and ice lenses around the rock glacier (5450 ma.s.l.). The highest multiannual creeping rates up to 150 mm yr(-1) are 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 Nyainqentanglha Range (Tibetan Plateau).
关键词	ELECTRICAL-RESISTIVITY TOMOGRAPHY TIME-SERIES ANALYSIS NAM CO BASIN ROCK GLACIERS MOUNTAIN PERMAFROST VELOCITY VARIATIONS INTERNAL STRUCTURE ZHADANG GLACIER SHORT-TERM INVENTORY
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000609257400001
来源期刊	CRYOSPHERE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260248
推荐引用方式 GB/T 7714	Buckel, Johannes,Reinosch, Eike,Hoerdt, Andreas,et al. Insights into a remote cryosphere: a multi-method approach to assess permafrost occurrence at the Qugaqie basin, western Nyainqentanglha Range, Tibetan Plateau[J]. 中国科学院青藏高原研究所,2021,15(1).
APA	Buckel, Johannes.,Reinosch, Eike.,Hoerdt, Andreas.,Zhang, Fan.,Riedel, Bjoern.,...&Maeusbacher, Roland.(2021).Insights into a remote cryosphere: a multi-method approach to assess permafrost occurrence at the Qugaqie basin, western Nyainqentanglha Range, Tibetan Plateau.CRYOSPHERE,15(1).
MLA	Buckel, Johannes,et al."Insights into a remote cryosphere: a multi-method approach to assess permafrost occurrence at the Qugaqie basin, western Nyainqentanglha Range, Tibetan Plateau".CRYOSPHERE 15.1(2021).