Glacier surging controls glacier lake formation and outburst floods: The example of the Khurdopin Glacier, Karakoram
文献类型：期刊论文
| 作者 | Bazai, Nazir Ahmed1,3,5; Cui, Peng1,2,3; Liu, Dingzhu1,5; Carling, Paul A.4; Wang, Hao2,3; Zhang, Guotao1,2,5; Li, Yao1,5; Hassan, Javed1,3,5 |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2022 |
| 卷号 | 208页码:20 |
| 关键词 | Glacial lake Glacial lake outburst flood Glacial surge Remote sensing Cross-correlation feature tracking Climate change |
| ISSN号 | 0921-8181 |
| DOI | 10.1016/j.gloplacha.2021.103710 |
| 通讯作者 | Cui, Peng(pengcui@imde.ac.cn) ; Liu, Dingzhu(liudingzhu@imde.ac.cn) |
| 英文摘要 | Ice dammed glacial lake outburst floods (GLOFs) associated with surge glaciers are increasing in response to climate change. Predicting the phenomenon to protect downstream communities remains challenging around the globe. Surge-type glaciers are characterized by unsteady movements and frequent frontal advances, which cause natural hazards by obstructing river channels, forming ice-dammed lakes, which can cause GLOFs, posing threats downstream. The determination of the surge characteristics, timing and evolution of lakes and GLOFs is fundamental to flood control and disaster management. In this study, the case of the Khurdopin Glacier (Karakoram) is used to elucidate key behavioral characteristics of surging glaciers that usefully can be applied to understand the GLOF hazard from glaciers worldwide. Seven surge periodical cycles associated with the Khurdopin Glacier that occurred at intervals of 19-20 years between 1880 and 2020 were investigated using a GLOF dataset. The ice flow dynamics of three surge events that occurred between 1970 and 2020 were analyzed using high-resolution satellite imagery. The results indicate that the maximum and minimum surge velocities control the conduit development that drains lakes resulting in a number of GLOFs. A surge between 1998 and 2002 generated six GLOFs. A subglacial drainage model was developed to estimate the timing of the peak discharge in GLOF hydrographs. The results show that conduit melt enlargement becomes the dominant drainage process at one-third of the rising limb. These floods' high peak discharges and short durations are primarily due to the higher lake water temperature, which controls the conduit enlargement rate. Based on the current study results, the proposed model can be adopted worldwide for surge-type glaciers. The initiation of the main surge period, which leads to lake formation, can be anticipated, as the pre-surge period can be identified using remote-sensing analysis. The timing of ice-dammed lake formation and GLOFs can be estimated, providing residents and authorities time to take precautionary measures and thus limiting damage downstream. |
| WOS关键词 | VARIEGATED GLACIER ; DAMMED LAKES ; BRIEF COMMUNICATION ; KYAGAR GLACIER ; SURGES ; EVOLUTION ; ALASKA ; DAMS ; MAGNITUDE ; FREQUENCY |
| 资助项目 | Second Tibet Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0906] ; National Natural Science Foundation of China[41941017] ; Sichuan Province Science and Technology Support Program[2021YFH0009] ; monitoring team of Pakistan national Disaster Management Authority ; China-Pakistan Joint Research Center on Earth Science ; Quaid-i-Azam University ; Karakoram International University |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000740514200003 |
| 出版者 | ELSEVIER |
| 资助机构 | Second Tibet Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; Sichuan Province Science and Technology Support Program ; monitoring team of Pakistan national Disaster Management Authority ; China-Pakistan Joint Research Center on Earth Science ; Quaid-i-Azam University ; Karakoram International University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/169493]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Cui, Peng; Liu, Dingzhu |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.CAS HEC, China Pakistan Joint Res Ctr Earth Sci, Islamabad 45320, Pakistan 4.Univ Southampton, Geog & Environm Sci, Southampton SO17 1BJ, Hants, England 5.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bazai, Nazir Ahmed,Cui, Peng,Liu, Dingzhu,et al. Glacier surging controls glacier lake formation and outburst floods: The example of the Khurdopin Glacier, Karakoram[J]. GLOBAL AND PLANETARY CHANGE,2022,208:20. |
| APA | Bazai, Nazir Ahmed.,Cui, Peng.,Liu, Dingzhu.,Carling, Paul A..,Wang, Hao.,...&Hassan, Javed.(2022).Glacier surging controls glacier lake formation and outburst floods: The example of the Khurdopin Glacier, Karakoram.GLOBAL AND PLANETARY CHANGE,208,20. |
| MLA | Bazai, Nazir Ahmed,et al."Glacier surging controls glacier lake formation and outburst floods: The example of the Khurdopin Glacier, Karakoram".GLOBAL AND PLANETARY CHANGE 208(2022):20. |
入库方式： OAI收割
来源：地理科学与资源研究所
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