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Frequency and size change of ice-snow avalanches in the central Himalaya: A case from the Annapurna II glacier

文献类型：期刊论文

作者Li, Yao5; Cui, Yi-Fei4,5; Hao, Jian-Sheng3; Zhang, Zheng-Tao2; Wang, Hao1; Guo, Jian5; Wang, Shuo-Fan5
刊名ADVANCES IN CLIMATE CHANGE RESEARCH
出版日期2024-06-01
卷号15期号:3页码:464-475
关键词Ice-snow avalanche Glacier instability Climate change Central Himalaya Remote sensing
ISSN号1674-9278
DOI10.1016/j.accre.2024.03.006
英文摘要Glaciers have retreated and shrunk in High Mountain Asia since the mid-20th century because of global warming, leading to glacier instability and hazardous ice-snow avalanches. However, the complex relationship between ice-snow avalanches and factors such as climate and potential triggers are difficult to understand because of the lack of observational data. Here, we addressed ice-snow avalanches on the Annapurna II glacier in Nepal, Central Himalaya. We constructed an ice-snow avalanche history using long-term multi-source remote sensing images (1988-2021) and mapped the velocity fields of glaciers using cross-correlation analysis on SAR and optical images. Then, we investigated the impact of climate change and earthquakes on the frequency and size of ice-snow avalanches. The results demonstrate that the frequency of ice-snow avalanches has increased from 10 in 1988 to 27 in 2020, but the average area of ice-snow avalanche deposits has decreased by approximately 70%, from 3.4 x 105 m2 in 1988 to 1.2 x 105 m2 in 2020. The evolutionary characteristic of ice avalanches is linked to the impact of glacier retreat (reduction in ice material supply) and increased activity under climate change. The glacier movement velocity controls the size of ice-snow avalanches and can be set as an indicator for ice-snow avalanche warnings. On the Annapurna II glacier, an ice-snow avalanche occurred when the glacier velocities were greater than 1.5 m d-1. These results offer insights into ice-snow avalanche risk assessment and prediction in high-mountain areas, particularly in regions characterised by dense glacier distribution.
WOS关键词LAKE OUTBURST FLOODS ; HIGH-MOUNTAIN ASIA ; HANGING GLACIER ; DEBRIS ; SUSCEPTIBILITY ; INVENTORY ; DATABASE ; IMAGERY ; MOTION ; ALASKA
资助项目National Natural Science Foundation of China[42301086] ; National Natural Science Foundation of China[42120104002] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0906] ; China Postdoctoral Science Foundation[2023M731874] ; China Postdoctoral Science Foundation[2022M721771] ; Fundamental Research Funds for the Central Universities[2021NTST28] ; School of National Safety and Emergency Management of Beijing Normal University Funds ; Research Fund Program of the State Key Laboratory of Hydroscience and Engineering[2021 -KY -04]
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001273363200001
出版者KEAI PUBLISHING LTD
资助机构National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; China Postdoctoral Science Foundation ; Fundamental Research Funds for the Central Universities ; School of National Safety and Emergency Management of Beijing Normal University Funds ; Research Fund Program of the State Key Laboratory of Hydroscience and Engineering
源URL[http://ir.igsnrr.ac.cn/handle/311030/207047]  
专题陆地表层格局与模拟院重点实验室_外文论文
通讯作者Cui, Yi-Fei
作者单位1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Beijing Normal Univ, Sch Natl Safety & Emergency Management, Beijing 100875, Peoples R China
3.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Minist Water Resources, Key Lab Hydrosphere Sci, Beijing 100084, Peoples R China
5.Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Hydraul Engn, Beijing 100084, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yao,Cui, Yi-Fei,Hao, Jian-Sheng,et al. Frequency and size change of ice-snow avalanches in the central Himalaya: A case from the Annapurna II glacier[J]. ADVANCES IN CLIMATE CHANGE RESEARCH,2024,15(3):464-475.
APA Li, Yao.,Cui, Yi-Fei.,Hao, Jian-Sheng.,Zhang, Zheng-Tao.,Wang, Hao.,...&Wang, Shuo-Fan.(2024).Frequency and size change of ice-snow avalanches in the central Himalaya: A case from the Annapurna II glacier.ADVANCES IN CLIMATE CHANGE RESEARCH,15(3),464-475.
MLA Li, Yao,et al."Frequency and size change of ice-snow avalanches in the central Himalaya: A case from the Annapurna II glacier".ADVANCES IN CLIMATE CHANGE RESEARCH 15.3(2024):464-475.

入库方式： OAI收割

来源：地理科学与资源研究所

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