Articles | Volume 16, issue 4
https://doi.org/10.5194/tc-16-1333-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-1333-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Brief communication: An approximately 50 Mm3 ice-rock avalanche on 22 March 2021 in the Sedongpu valley, southeastern Tibetan Plateau
Chuanxi Zhao
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing 100101, China
College of Earth and Environmental Sciences, Lanzhou University,
Lanzhou 730000, China
Wei Yang
CORRESPONDING AUTHOR
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing 100101, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences,
Beijing 100101, China
Matthew Westoby
Department of Geography and Environmental Sciences, Northumbria
University, Newcastle upon Tyne, NE1 8ST, UK
Baosheng An
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing 100101, China
School of Science, Tibet University, Lhasa 850011, China
Guangjian Wu
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing 100101, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences,
Beijing 100101, China
South-East Tibetan Plateau station for integrated observation and research of alpine environment, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Lulang 860100, China, Lulang, China
Weicai Wang
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing 100101, China
CAS Center for Excellence in Tibetan Plateau Earth Sciences,
Beijing 100101, China
Zhongyan Wang
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing 100101, China
Yongjie Wang
Key Laboratory of Tibetan Environment Changes and Land Surface
Processes, Institute of Tibetan Plateau Research, Chinese Academy of
Sciences, Beijing 100101, China
South-East Tibetan Plateau station for integrated observation and research of alpine environment, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Lulang 860100, China, Lulang, China
Stuart Dunning
School of Geography, Politics and Sociology, Newcastle University,
Newcastle upon Tyne, NE1 7RU, UK
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Manuscript not accepted for further review
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Stefan Fugger, Catriona L. Fyffe, Simone Fatichi, Evan Miles, Michael McCarthy, Thomas E. Shaw, Baohong Ding, Wei Yang, Patrick Wagnon, Walter Immerzeel, Qiao Liu, and Francesca Pellicciotti
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Yan Zhong, Qiao Liu, Matthew Westoby, Yong Nie, Francesca Pellicciotti, Bo Zhang, Jialun Cai, Guoxiang Liu, Haijun Liao, and Xuyang Lu
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Slope failures exist in many paraglacial regions and are the main manifestation of the interaction between debris-covered glaciers and slopes. We mapped paraglacial slope failures (PSFs) along the Hailuogou Glacier (HLG), Mt. Gongga, southeastern Tibetan Plateau. We argue that the formation, evolution, and current status of these typical PSFs are generally related to glacier history and paraglacial geomorphological adjustments, and influenced by the fluctuation of climate conditions.
Yongkang Xue, Tandong Yao, Aaron A. Boone, Ismaila Diallo, Ye Liu, Xubin Zeng, William K. M. Lau, Shiori Sugimoto, Qi Tang, Xiaoduo Pan, Peter J. van Oevelen, Daniel Klocke, Myung-Seo Koo, Tomonori Sato, Zhaohui Lin, Yuhei Takaya, Constantin Ardilouze, Stefano Materia, Subodh K. Saha, Retish Senan, Tetsu Nakamura, Hailan Wang, Jing Yang, Hongliang Zhang, Mei Zhao, Xin-Zhong Liang, J. David Neelin, Frederic Vitart, Xin Li, Ping Zhao, Chunxiang Shi, Weidong Guo, Jianping Tang, Miao Yu, Yun Qian, Samuel S. P. Shen, Yang Zhang, Kun Yang, Ruby Leung, Yuan Qiu, Daniele Peano, Xin Qi, Yanling Zhan, Michael A. Brunke, Sin Chan Chou, Michael Ek, Tianyi Fan, Hong Guan, Hai Lin, Shunlin Liang, Helin Wei, Shaocheng Xie, Haoran Xu, Weiping Li, Xueli Shi, Paulo Nobre, Yan Pan, Yi Qin, Jeff Dozier, Craig R. Ferguson, Gianpaolo Balsamo, Qing Bao, Jinming Feng, Jinkyu Hong, Songyou Hong, Huilin Huang, Duoying Ji, Zhenming Ji, Shichang Kang, Yanluan Lin, Weiguang Liu, Ryan Muncaster, Patricia de Rosnay, Hiroshi G. Takahashi, Guiling Wang, Shuyu Wang, Weicai Wang, Xu Zhou, and Yuejian Zhu
Geosci. Model Dev., 14, 4465–4494, https://doi.org/10.5194/gmd-14-4465-2021, https://doi.org/10.5194/gmd-14-4465-2021, 2021
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The subseasonal prediction of extreme hydroclimate events such as droughts/floods has remained stubbornly low for years. This paper presents a new international initiative which, for the first time, introduces spring land surface temperature anomalies over high mountains to improve precipitation prediction through remote effects of land–atmosphere interactions. More than 40 institutions worldwide are participating in this effort. The experimental protocol and preliminary results are presented.
Thomas E. Shaw, Wei Yang, Álvaro Ayala, Claudio Bravo, Chuanxi Zhao, and Francesca Pellicciotti
The Cryosphere, 15, 595–614, https://doi.org/10.5194/tc-15-595-2021, https://doi.org/10.5194/tc-15-595-2021, 2021
Short summary
Short summary
Near surface air temperature (Ta) is important for simulating the melting of glaciers, though its variability in space and time on mountain glaciers is still poorly understood. We combine new Ta observations on glacier in Tibet with several glacier datasets around the world to explore the applicability of an existing method to estimate glacier Ta based upon glacier flow distance. We make a first step at generalising a method and highlight the remaining unknowns for this field of research.
Yanbin Lei, Tandong Yao, Lide Tian, Yongwei Sheng, Lazhu, Jingjuan Liao, Huabiao Zhao, Wei Yang, Kun Yang, Etienne Berthier, Fanny Brun, Yang Gao, Meilin Zhu, and Guangjian Wu
The Cryosphere, 15, 199–214, https://doi.org/10.5194/tc-15-199-2021, https://doi.org/10.5194/tc-15-199-2021, 2021
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Two glaciers in the Aru range, western Tibetan Plateau (TP), collapsed suddenly on 17 July and 21 September 2016, respectively, causing fatal damage to local people and their livestock. The impact of the glacier collapses on the two downstream lakes (i.e., Aru Co and Memar Co) is investigated in terms of lake morphology, water level and water temperature. Our results provide a baseline in understanding the future lake response to glacier melting on the TP under a warming climate.
William D. Smith, Stuart A. Dunning, Stephen Brough, Neil Ross, and Jon Telling
Earth Surf. Dynam., 8, 1053–1065, https://doi.org/10.5194/esurf-8-1053-2020, https://doi.org/10.5194/esurf-8-1053-2020, 2020
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Glacial landslides are difficult to detect and likely underestimated due to rapid covering or dispersal. Without improved detection rates we cannot constrain their impact on glacial dynamics or their potential climatically driven increases in occurrence. Here we present a new open-access tool (GERALDINE) that helps a user detect 92 % of these events over the past 38 years on a global scale. We demonstrate its ability by identifying two new, large glacial landslides in the Hayes Range, Alaska.
Yaoming Ma, Zeyong Hu, Zhipeng Xie, Weiqiang Ma, Binbin Wang, Xuelong Chen, Maoshan Li, Lei Zhong, Fanglin Sun, Lianglei Gu, Cunbo Han, Lang Zhang, Xin Liu, Zhangwei Ding, Genhou Sun, Shujin Wang, Yongjie Wang, and Zhongyan Wang
Earth Syst. Sci. Data, 12, 2937–2957, https://doi.org/10.5194/essd-12-2937-2020, https://doi.org/10.5194/essd-12-2937-2020, 2020
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In comparison with other terrestrial regions of the world, meteorological observations are scarce over the Tibetan Plateau.
This has limited our understanding of the mechanisms underlying complex interactions between the different earth spheres with heterogeneous land surface conditions.
The release of this continuous and long-term dataset with high temporal resolution is expected to facilitate broad multidisciplinary communities in understanding key processes on the
Third Pole of the world.
Cited articles
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, 2021
Bolch, T., Shea, J. M., Liu, S., Azam, F. M., Gao, Y., Gruber, S.,
Immerzeel, W. W., Kulkarni, A., Li, H., and Tahir, A. A.: Status and change
of the cryosphere in the extended Hindu Kush Himalaya region, in: The Hindu
Kush Himalaya Assessment, Springer International Publishing, Cham, Germany, 209–255, https://doi.org/10.1007/978-3-319-92288-1_7, 2019.
Chen, C., Zhang, L., Xiao, T., and He, J.: Barrier lake bursting and flood
routing in the Yarlung Tsangpo Grand Canyon in October 2018, J. Hydrol.,
583, 124603, https://doi.org/10.1016/j.jhydrol.2020.124603, 2020.
China Meteorological Data Service Centre (CMDSC): https://data.cma.cn/, last access: 20 May 2021.
Ekström, G. and Stark, C. P.: Simple scaling of catastrphic landslide
dynamics, Science, 339, 1416–1419, https://doi.org/10.1126/science.1232887,
2013.
Evans, S. G., Delaney, K. B., and Rana, N. M.: The occurrence and mechanism
of catastrophic mass flows in the mountain cryosphere, in: Snow and
Ice-Related Hazards, Risks, and Disasters, second edn., Elsevier, 541–596,
https://doi.org/10.1016/B978-0-12-817129-5.00004-4, 2021.
Falaschi, D., Kääb, A., Paul, F., Tadono, T., Rivera, J. A., and Lenzano, L. E.: Brief communication: Collapse of 4 Mm3 of ice from a cirque glacier in the Central Andes of Argentina, The Cryosphere, 13, 997–1004, https://doi.org/10.5194/tc-13-997-2019, 2019.
Haeberli, W., Huggel, C., Kääb, A., Zgraggen-Oswald, S., Polkvoj,
A., Galushkin, I., Zotikov, I., and Osokin, N.: The Kolka-Karmadon rock/ice
slide of 20 September 2002: an extraordinary event of historical dimensions
in North Ossetia, Russian Caucasus, J. Glaciol., 50, 533–546,
https://doi.org/10.3189/172756504781829710, 2004.
Iverson, R. M., George, D. L., and Logan, M.: Debris flow runup on vertical
barriers and adverse slopes, J. Geophys. Res.-Earth, 121, 2333–2357,
https://doi.org/10.1002/2016JF003933, 2016.
Jacquemart, M., Loso, M., Leopold, M., Welty, E., and Tiampo, K.: What
drives large-scale glacier detachments? Insights from Flat Creek glacier,
St. Elias Mountains, Alaska, Geology, 48, 703–707,
https://doi.org/10.1130/G47211.1, 2020.
Kääb, A., Jacquemart, M., Gilbert, A., Leinss, S., Girod, L., Huggel, C., Falaschi, D., Ugalde, F., Petrakov, D., Chernomorets, S., Dokukin, M., Paul, F., Gascoin, S., Berthier, E., and Kargel, J. S.: Sudden large-volume detachments of low-angle mountain glaciers – more frequent than thought?, The Cryosphere, 15, 1751–1785, https://doi.org/10.5194/tc-15-1751-2021, 2021.
Planet: Daily Earth Data to See Change and Make Better Decisions,
https://www.planet.com/explorer/#/interval/1%20day/types/PSScene, last access: 12 May 2021.
RGI Consortium: Randolph Glacier Inventory–A Dataset of Global Glacier
Outlines: Version 6.0, Technical Report, Global Land Ice Measurements from
Space, Colorado, USA, Digital Media [data set], https://doi.org/10.7265/N5-RGI-60,
2017.
Shean, D. and Bhushan, S.: dshean/hma_mb_paper: Release for accepted article: Data, notebooks, scripts and notes for Shean et al. (2020) paper on High-Mountain Asia glacier mass balance, Zenodo [code], https://zenodo.org/record/3600624, 2020.
Shugar, D., Jacquemart, M., Shean, D., Bhushan, S., Upadhyay, K., Sattar,
A., Schwanghart, W., McBride, S., de Vries, M. V. W., and Mergili, M.: A
massive rock and ice avalanche caused the 2021 disaster at Chamoli, Indian
Himalaya, Science, 373, 300–306, https://doi.org/10.1126/science.abh4455, 2021.
Tong, L. Q., Tu, J. N., Pei, L. X., Guo, Z. C., Zheng, X. W., Fan, J. H.,
Zhong, X., Liu, C. L., Wang, S. S., He, P., and Chen, H.: Preliminary
discussion of the frequent debris flow events in Sedongpu Basin at Gyala
Peri peak, Yarlung Zangbo River, J. Eng. Geol., 26, 1552–1561,
https://doi.org/10.13544/j.cnki.jeg.2018-401, 2019.
USGS: Lists, Maps, and Statistics: Basic earthquake counts for the World and United States, https://www.usgs.gov/programs/earthquake-hazards/lists-maps-and-statistics (last access: 10 May 2021), 2022.
Veh, G., Korup, O., and Walz, A.: Hazard from Himalayan glacier lake
outburst floods, P. Natl. Acad. Sci. USA, 117, 907–912,
https://doi.org/10.1073/pnas.1914898117, 2020.
Wang, R. J., Liu, S. Y., Shangguan, D. H., Radic, V., and Zhang, Y.: Spatial
Heterogeneity in Glacier Mass-Balance Sensitivity across High Mountain Asia,
Water, 11, 776, https://doi.org/10.3390/w11040776, 2019.
Wang, W., Yang, J., and Wang, Y.: Dynamic processes of 2018 Sedongpu
landslide in Namcha Barwa–Gyala Peri massif revealed by broadband seismic
records, Landslides, 17, 409–418, https://doi.org/10.1007/s10346-019-01315-3,
2020.
Yang, W.: An ice-rock avalanche in the Sedongpu basin in 29 October 2019, TIB-AV-Portal [video], https://doi.org/10.5446/56816, 2022.
Yao, T. D., Xue, Y. K., Chen, D. L., Chen, F. H., Thompson, L., Cui, P.,
Koike, T., Lau, W. K. M., Lettenmaier, D., Mosbrugger, V., Zhang, R. H., Xu,
B. Q., Dozier, J., Gillespie, T., Gu, Y., Kang, S. C., Piao, S. L.,
Sugimoto, S., Ueno, K., Wang, L., Wang, W. C., Zhang, F., Sheng, Y. W., Guo,
W. D., Ailikun, Yang, X. X., Ma, Y. M., Shen, S. S. P., Su, Z. B., Chen, F.,
Liang, S. L., Liu, Y. M., Singh, V. P., Yang, K., Yang, D. Q., Zhao, X. Q.,
Qian, Y., Zhang, Y., and Li, Q.: Recent Third Pole's Rapid Warming
Accompanies Cryospheric Melt and Water Cycle Intensification and
Interactions between Monsoon and Environment: Multidisciplinary Approach
with Observations, Modeling, and Analysis, B. Am. Meteorol. Soc., 100,
423–444, https://doi.org/10.1175/BAMS-D-17-0057.1, 2019.
Zhao, B., Li, W., Wang, Y., Lu, J., and Li, X.: Landslides triggered by the
Ms 6.9 Nyingchi earthquake, China (18 November 2017): analysis of the
spatial distribution and occurrence factors, Landslides, 16, 765–776,
https://doi.org/10.1007/s10346-019-01146-2, 2019.
Zheng, G., Mergili, M., Emmer, A., Allen, S., Bao, A., Guo, H., and Stoffel, M.: The 2020 glacial lake outburst flood at Jinwuco, Tibet: causes, impacts, and implications for hazard and risk assessment, The Cryosphere, 15, 3159–3180, https://doi.org/10.5194/tc-15-3159-2021, 2021.
Short summary
On 22 March 2021, a ~ 50 Mm 3 ice-rock avalanche occurred from 6500 m a.s.l. in the Sedongpu basin, southeastern Tibet. It caused temporary blockage of the Yarlung Tsangpo river, a major tributary of the Brahmaputra. We utilize field investigations, high-resolution satellite imagery, seismic records, and meteorological data to analyse the evolution of the 2021 event and its impact, discuss potential drivers, and briefly reflect on implications for the sustainable development of the region.
On 22 March 2021, a ~ 50 Mm 3 ice-rock avalanche occurred from 6500 m a.s.l. in the Sedongpu...