Volume Estimation of Small Scale Debris Flows Based on Observations of Topographic Changes Using Airborne LiDAR DEMs
文献类型：期刊论文
| 作者 | Hosung KIM ; Seung Woo LEE ; Chan-Young YUNE ; Gihong KIM |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2014-05 |
| 卷号 | 11期号:3页码:578-591 |
| 关键词 | Debris flow Topographic change LiDAR DEM Volume estimation Global navigation satellite system (GNSS) |
| 通讯作者 | Gihong KIM |
| 英文摘要 | This paper describes a geographic information system (GIS)-based method for observing changes in topography caused by the initiation, transport, and deposition of debris flows using high-resolution light detection and ranging (LiDAR) digital elevation models (DEMs) obtained before and after the debris flow events. The paper also describes a method for estimating the volume of debris flows using the differences between the LiDAR DEMs. The relative and absolute positioning accuracies of the LiDAR DEMs were evaluated using a real-time precise global navigation satellite system (GNSS) positioning method. In addition, longitudinal and cross-sectional profiles of the study area were constructed to determine the topographic changes caused by the debris flows. The volume of the debris flows was estimated based on the difference between the LiDAR DEMs. The accuracies of the relative and absolute positioning of the two LiDAR DEMs were determined to be ±10 cm and ±11 cm RMSE, respectively, which demonstrates the efficiency of the method for determining topographic changes at an scale equivalent to that of field investigations. Based on the topographic changes, the volume of the debris flows in the study area was estimated to be 3747 m3, which is comparable with the volume estimated based on the data from field investigations. |
| 收录类别 | SCI |
| 公开日期 | 2014-05-06 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6889]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.3 |
| 推荐引用方式 GB/T 7714 | Hosung KIM,Seung Woo LEE,Chan-Young YUNE,et al. Volume Estimation of Small Scale Debris Flows Based on Observations of Topographic Changes Using Airborne LiDAR DEMs[J]. Journal of Mountain Science,2014,11(3):578-591. |
| APA | Hosung KIM,Seung Woo LEE,Chan-Young YUNE,&Gihong KIM.(2014).Volume Estimation of Small Scale Debris Flows Based on Observations of Topographic Changes Using Airborne LiDAR DEMs.Journal of Mountain Science,11(3),578-591. |
| MLA | Hosung KIM,et al."Volume Estimation of Small Scale Debris Flows Based on Observations of Topographic Changes Using Airborne LiDAR DEMs".Journal of Mountain Science 11.3(2014):578-591. |
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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