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Articles | Volume 17, issue 6
Articles | Volume 17, issue 6
https://doi.org/10.5194/tc-17-2533-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-17-2533-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 6
Brief communication
 | Highlight paper
 | 
28 Jun 2023
Brief communication | Highlight paper |  | 28 Jun 2023

Brief communication: Rapid  ∼  335  ×  106 m3 bed erosion after detachment of the Sedongpu Glacier (Tibet)

Andreas Kääb and Luc Girod

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An, B. S., Wang, W. C., Yang, W., Wu, G. J., Guo, Y. H., Zhu, H. F., Gao, Y., Bai, L., Zhang, F., Zeng, C., Wang, L., Zhou, J., Li, X., Li, J., Zhao, Z. J., Chen, Y. Y., Liu, J. S., Li, J. L., Wang, Z. Y., Chen, W. F., and Yao, T. D.: Process, mechanisms, and early warning of glacier collapse-induced river blocking disasters in the Yarlung Tsangpo Grand Canyon, southeastern Tibetan Plateau, Sci. Total Environ., 816, 151652, https://doi.org/10.1016/j.scitotenv.2021.151652, 2022. 
Bai, L., Jiang, Y., and Mori, J.: Source processes associated with the 2021 glacier collapse in the Yarlung Tsangpo Grand Canyon, southeastern Tibetan Plateau, Landslides, 20, 421–426, https://doi.org/10.1007/s10346-022-02002-6, 2022. 
Ballantyne, C. K.: Paraglacial geomorphology, Quaternary Sci. Rev., 21, 1935–2017, https://doi.org/10.1016/S0277-3791(02)00005-7, 2002. 
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Editorial statement
This paper describes a very dramatic rate of landscape change that is both scientifically notable across the geoscience community, and of general interest to the public. The key messages can be communicated in a very accessible way, and the satellite imagery associated with the analysis clearly show the high impact changes to the valley.
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Short summary
Following the detachment of the 130 × 106 m3 Sedongpu Glacier (south-eastern Tibet) in 2018, the Sedongpu Valley underwent massive large-volume landscape changes. An enormous volume of in total around 330 × 106 m3 was rapidly eroded, forming a new canyon of up to 300 m depth, 1 km width, and almost 4 km length. Such consequences of glacier change in mountains have so far not been considered at this magnitude and speed.
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