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

Lookup NU author(s): Dr Stuart DunningORCiD

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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.

Publication metadata

Author(s): Zhao C, Yang W, Westoby M, An B, Wu G, Wang W, Wang Z, Wang Y, Dunning S

Publication type: Article

Publication status: Published

Journal: The Cryosphere

Year: 2022

Volume: 16

Issue: 4

Pages: 1333-1340

Online publication date: 12/04/2022

Acceptance date: 11/02/2022

Date deposited: 02/03/2022

ISSN (print): 1994-0416

ISSN (electronic): 1994-0424

Publisher: Copernicus GmbH

URL: https://doi.org/10.5194/tc-2021-306

DOI: 10.5194/tc-2021-306

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