Comparisons of Dynamic Landslide Models on GIS Platforms
文献类型：期刊论文
| 作者 | Wu, Yuming2; Tian, Aohua1,2,3; Lan, Hengxing2 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 12期号:6页码:16 |
| 关键词 | landslide dynamics landslide classification dynamic models depth-averaged model GIS |
| DOI | 10.3390/app12063093 |
| 通讯作者 | Lan, Hengxing(lanhx@lreis.ac.cn) |
| 英文摘要 | Numerical simulation is one of the methods to assess landslide movement processes, which is beneficial for engineering design and urban planning. With the development of computer technology, GIS has gradually become the mainstream platform for landslide simulation due to data availability and algorithm integrability. However, the dynamic processes of landslides are complicated, which makes integration difficult on GIS platforms. Some assumptions are applied to simplify these dynamic processes and solve this problem. Generally, there are two main types of numerical models on GIS platforms: models based on the Eulerian description and models based on the Lagrangian description. Case studies show that Eulerian models are suitable for flow-like movement, and Lagrangian models are suitable for discrete rigid bodies movement. Different models face different problems: the Eulerian-based models show numerical diffusion and oscillation, and the Lagrangian-based model needs to consider complicated shear and collision processes. In addition, the 3-D model can describe more details in the z-direction, while the depth-averaged model can obtain a reasonable range of motion, depth, and speed quickly. From the view of numerical simulation, inappropriate models, assumptions, and numerical schemes will produce errors. The landslide type refers to several forms of mass wasting associated with a wide range of ground movements, which guides establishing dynamic models and numerical schemes on GIS platforms and helps us obtain results accurately. |
| WOS关键词 | ROCKFALL HAZARD ; FLOW MODEL ; SPH MODEL ; SIMULATION ; FRAGMENTATION ; MOUNTAIN ; MASS |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)[XDA23090301] ; National Natural Science Foundation of China[41941019] ; National Natural Science Foundation of China[42041006] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0904] |
| WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000776048800001 |
| 出版者 | MDPI |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/173620]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Lan, Hengxing |
| 作者单位 | 1.China Univ Min & Technol Beijing, Coll Geosci & Surverying Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yuming,Tian, Aohua,Lan, Hengxing. Comparisons of Dynamic Landslide Models on GIS Platforms[J]. APPLIED SCIENCES-BASEL,2022,12(6):16. |
| APA | Wu, Yuming,Tian, Aohua,&Lan, Hengxing.(2022).Comparisons of Dynamic Landslide Models on GIS Platforms.APPLIED SCIENCES-BASEL,12(6),16. |
| MLA | Wu, Yuming,et al."Comparisons of Dynamic Landslide Models on GIS Platforms".APPLIED SCIENCES-BASEL 12.6(2022):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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