Characterizing the evolution life cycle of the Sunkoshi landslide in Nepal with multi-source SAR data
文献类型：期刊论文
| 作者 | Ao, Meng1; Zhang, Lu1; Dong, Yuting3; Su, Lijun2 ; Shi, Xuguo3; Balz, Timo1; Liao, Mingsheng1
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| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2020 |
| 卷号 | 10期号:1页码:17988 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-020-75002-y |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | A catastrophic landslide disaster happened on 2 August 2014 on the right bank of Sunkoshi River in Nepal, resulting in enormous casualties and severe damages of the Araniko highway. We collected multi-source synthetic aperture radar (SAR) data to investigate the evolution life cycle of the Sunkoshi landslide. Firstly, Distributed Scatterers SAR Interferometry (DS-InSAR) technology is applied to analyze 20 ALOS PALSAR images to retrieve pre-disaster time-series deformation. The results show that the upper part, especially the top of the landslide, has long been active before collapse, with the largest annual LOS deformation rate more than -30 mm/year. Time series deformations measured illustrate that rainfall might be a key driving factor. Next, two pairs of TerraSAR-X/TanDEM-X bistatic data are processed to identify the landslide affected area by intensity change detection, and to generate pre-and post-disaster DSMs. Surface height change map showed maximum values of -150.47 m at the source region and 55.65 m in the deposit region, leading to a debris volume of 5.4785 +/- 0.6687 million-m(3). Finally, 11 ALOS-2 PALSAR-2 and 82 Sentinel-1 SAR images are analyzed to derive post-disaster annual deformation rate and long time series displacements of the Sunkoshi landslide. The results illustrated that the upper part of the landslide were still in active deformation with the largest LOS displacement velocity exceeding-100 mm/year. |
| 语种 | 英语 |
| WOS记录号 | WOS:000602843400001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/55887]  |
| 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 | Zhang, Lu |
| 作者单位 | 1.State Key Laboratory of Information Engineering in Surveying, Mapping, and Remote Sensing, Wuhan University, Wuhan, China; 2.Key Laboratory for Mountain Hazards and Earth Surface Process of CAS, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China 3.Faculty of Information Engineering, China University of Geosciences, Wuhan, China; |
| 推荐引用方式 GB/T 7714 | Ao, Meng,Zhang, Lu,Dong, Yuting,et al. Characterizing the evolution life cycle of the Sunkoshi landslide in Nepal with multi-source SAR data[J]. SCIENTIFIC REPORTS,2020,10(1):17988. |
| APA | Ao, Meng.,Zhang, Lu.,Dong, Yuting.,Su, Lijun.,Shi, Xuguo.,...&Liao, Mingsheng.(2020).Characterizing the evolution life cycle of the Sunkoshi landslide in Nepal with multi-source SAR data.SCIENTIFIC REPORTS,10(1),17988. |
| MLA | Ao, Meng,et al."Characterizing the evolution life cycle of the Sunkoshi landslide in Nepal with multi-source SAR data".SCIENTIFIC REPORTS 10.1(2020):17988. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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