An approximately 50 Mm3 ice-rock avalanche on 22 March 2021 in the Sedongpu valley, southeastern Tibetan Plateau

Zhao, Chuanxi, Yang, Wei, Westoby, Matt, An, Baosheng, Wu, Guangjian, Wang, Weicai, Wang, Zhongyan, Wang, Yongjie and Dunning, Stuart (2022) An approximately 50 Mm3 ice-rock avalanche on 22 March 2021 in the Sedongpu valley, southeastern Tibetan Plateau. The Cryosphere, 16 (4). pp. 1333-1340. ISSN 1994-0424

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Official URL: https://doi.org/10.5194/tc-16-1333-2022

Abstract

On 22 March 2021, an approximately 50 Mm3 ice-rock avalanche occurred from 6500 m a.s.l. in the Sedongpu basin, southeastern Tibet. The avalanche transformed into a highly mobile mass flow which temporarily blocked the Yarlung Tsangpo river. The avalanche flow lasted ∼ 5 min and produced substantial geomorphological reworking. This event, and previous ones from the basin, occurred concurrently with, or shortly after, positive seasonal air temperature anomalies. The occurrence of future large mass flows from the basin cannot be ruled out, and their impacts must be carefully considered given implications for sustainable hydropower and associated socioeconomic development in the region.

Item Type: Article
Additional Information: Funding Information: The study is supported by the Second Tibetan Plateau Scientific Expedition and Research Program (STEP) (grant no. 2019QZKK0201), the National Natural Science Foundation of China (grant nos. 41961134035, 41988101), the Royal Society Newton Advanced Fellowship (grant no. NA170325), and the National Key Research and Development Project (grant no. 2019YFC1509102).
Subjects: F700 Ocean Sciences
F800 Physical and Terrestrial Geographical and Environmental Sciences
Department: Faculties > Engineering and Environment > Geography and Environmental Sciences
Depositing User: Rachel Branson
Date Deposited: 11 May 2022 14:37
Last Modified: 11 May 2022 14:45
URI: http://nrl.northumbria.ac.uk/id/eprint/49097

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