Articles | Volume 23, issue 9
https://doi.org/10.5194/nhess-23-3015-2023
https://doi.org/10.5194/nhess-23-3015-2023
Research article
 | 
08 Sep 2023
Research article |  | 08 Sep 2023

Early warning system for ice collapses and river blockages in the Sedongpu Valley, southeastern Tibetan Plateau

Wei Yang, Zhongyan Wang, Baosheng An, Yingying Chen, Chuanxi Zhao, Chenhui Li, Yongjie Wang, Weicai Wang, Jiule Li, Guangjian Wu, Lin Bai, Fan Zhang, and Tandong Yao

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Cited articles

Allen, S. K., Sattar, A., King, O., Zhang, G., Bhattacharya, A., Yao, T., and Bolch, T.: Glacial lake outburst flood hazard under current and future conditions: worst-case scenarios in a transboundary Himalayan basin, Nat. Hazards Earth Syst. Sci., 22, 3765–3785, https://doi.org/10.5194/nhess-22-3765-2022, 2022. 
An, B., Wang, W., Yang, W., Wu, G., Guo, Y., Zhu, H., Gao, Y., Bai, L., Zhang, F., and Zeng, C.: 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. 
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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, 2023. 
Bhattacharya, A., Bolch, T., Mukherjee, K., King, O., Menounos, B., Kapitsa, V., Neckel, N., Yang, W., and Yao, T.: High Mountain Asian glacier response to climate revealed by multi-temporal satellite observations since the 1960s, Nat. Commun., 12, 4133, https://doi.org/10.1038/s41467-021-24180-y, 2021. 
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Short summary
We present the structure and performance of the early warning system (EWS) for glacier collapse and river blockages in the southeastern Tibetan Plateau. The EWS warned of three collapse–river blockage chain events and seven small-scale events. The volume and location of the collapses and the percentage of ice content influenced the velocities of debris flows. Such a study is helpful for understanding the mechanism of glacier hazards and for establishing similar EWSs in other high-risk regions.
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