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

Chuanxi Zhao*, Wei Yang, Matt Westoby, Baosheng An, Guangjian Wu, Weicai Wang, Zhongyan Wang, Yongjie Wang, Stuart Dunning

*Corresponding author for this work

Research output: Contribution to journalComment/debatepeer-review

Abstract

On 22 March 2021, a ~50 M m3 ice-rock avalanche occurred from 6500 m asl in the Sedongpu basin, southeastern Tibet. The avalanche transformed into a highly mobile flow which temporarily blocked the Yarlung Tsangpo river. The avalanche flow lasted ~5 minutes and produced substantial geomorphological reworking. This event, and previous ones from the basin, occurred concurrently with, or shortly after recorded positive 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.
Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalThe Cryosphere
Volume16
DOIs
Publication statusAccepted/In press - 11 Feb 2022

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