Glacial Lake Inventory and Lake Outburst Flood/Debris Flow Hazard Assessment after the Gorkha Earthquake in the Bhote Koshi Basin
文献类型：期刊论文
| 作者 | Liu Mei1,2 ; Chen Ningsheng2; Zhang Yong1,2; Deng Mingfeng2
|
| 刊名 | WATER
 |
| 出版日期 | 2020 |
| 卷号 | 12期号:2页码:464 |
| 关键词 | glacial lake outburst flood (GLOF) debris flow Bhote Koshi landslides Gorkha earthquake hazard assessment |
| DOI | 10.3390/w12020464 |
| 产权排序 | 1 |
| 通讯作者 | Chen, Ningsheng(chennsh@imde.ac.cn) |
| 文献子类 | Article |
| 英文摘要 | Glacial lake outburst floods (GLOF) evolve into debris flows by erosion and sediment entrainment while propagating down a valley, which highly increases peak discharge and volume and causes destructive damage downstream. This study focuses on GLOF hazard assessment in the Bhote Koshi Basin (BKB), where was highly developed glacial lakes and was intensely affected by the Gorkha earthquake. A new 2016 glacial lake inventory was established, and six unreported GLOF events were identified with geomorphic outburst evidence from GaoFen-1 satellite images and Google Earth. A new method was proposed to assess GLOF hazard, in which large numbers of landslides triggered by earthquake were considered to enter into outburst floods enlarge the discharge and volume of debris flow in the downstream. Four GLOF hazard classes were derived according to glacial lake outburst potential and a flow magnitude assessment matrix, in which 11 glacial lakes were identified to have very high hazard and 24 to have high hazard. The GLOF hazard in BKB increased after the earthquake due to landslide deposits, which increased by 216.03 x 10(6) m(3), and provides abundant deposits for outburst floods to evolve into debris flows. We suggest that in regional GLOF hazard assessment, small glacial lakes should not be overlooked for landslide deposit entrainment along a flood route that would increase the peak discharge, especially in earthquake-affected areas where large numbers of landslides were triggered. |
| 电子版国际标准刊号 | 2073-4441 |
| WOS关键词 | MORAINE-DAMMED LAKES ; MOUNT EVEREST REGION ; DEBRIS FLOWS ; CATASTROPHIC DRAINAGE ; CLIMATE-CHANGE ; RIVER-BASIN ; FLOODS ; HIMALAYAS ; BREACH ; RISK |
| 资助项目 | National Natural Science Foundation of China[41671112] ; National Natural Science Foundation of China[41861134008] ; 135 Strategic Program of the IMHE, CAS[SDS-135-1705] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000519846500155 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; 135 Strategic Program of the IMHE, CAS |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34137]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Chen Ningsheng |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing 100049, China 2.Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; |
| 推荐引用方式 GB/T 7714 | Liu Mei,Chen Ningsheng,Zhang Yong,et al. Glacial Lake Inventory and Lake Outburst Flood/Debris Flow Hazard Assessment after the Gorkha Earthquake in the Bhote Koshi Basin[J]. WATER,2020,12(2):464. |
| APA | Liu Mei,Chen Ningsheng,Zhang Yong,&Deng Mingfeng.(2020).Glacial Lake Inventory and Lake Outburst Flood/Debris Flow Hazard Assessment after the Gorkha Earthquake in the Bhote Koshi Basin.WATER,12(2),464. |
| MLA | Liu Mei,et al."Glacial Lake Inventory and Lake Outburst Flood/Debris Flow Hazard Assessment after the Gorkha Earthquake in the Bhote Koshi Basin".WATER 12.2(2020):464. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。