Refined Three-Dimensional River Channel Reconstruction Method Based on Coarse DEMs for Flood Simulation
文献类型：期刊论文
| 作者 | Ma, Yongyong; Hou, Jingming; Liu, Wei2,3; Li, Bingyao; Wang, Tian; Wang, Feng |
| 刊名 | ENVIRONMENTAL MODELING & ASSESSMENT
 |
| 出版日期 | 2023-10-01 |
| 卷号 | N/A |
| 关键词 | River topography Flood Terrain reconstruction DEM Numerical simulation |
| DOI | 10.1007/s10666-023-09887-0 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Flood forecasts commonly require reliable input data to accurately reflect the actual situation. Although widely used in the world, the coarse digital elevation models (DEMs) from remote sensing often provide poor representations of the real topography due to the effects of water and mountain shadows. Remote sensing methods cannot reliably capture riverbed elevations, and fine-scale DEMs are needed. Due to the high cost of labor and material resource limitations, complete fine-scale DEMs are difficult to obtain to support flood forecasting across long reaches at sufficiently high precision. This work presents a refined three-dimensional river channel reconstruction method by considering the longitudinal and lateral topographic features of rivers to provide realistic river terrain data. The performance of this method in flood simulation is confirmed by simulating extreme flood events in the lower-670-km reach of the Jinsha River at a 30-m resolution. The numerical simulations and field measurements are quantitatively compared in terms of flood peaks and flood propagation processes. Numerical experiments further confirm that uncertainties from terrain inputs are not amplified by the hydrodynamic model when producing the final flood forecasting outputs. |
| WOS关键词 | DAM-BREAK ; WAVE-PROPAGATION ; CROSS-SECTIONS ; OVERLAND-FLOW ; MODEL ; UNCERTAINTY ; BATHYMETRY ; EXTRACTION ; EFFICIENT ; CHINA |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000968247600001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200788]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Xian Univ Technol, State Key Lab Eco Hydraul Northwest Arid Reg China, 5 Jinhua Rd, Xian 710048, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Yongyong,Hou, Jingming,Liu, Wei,et al. Refined Three-Dimensional River Channel Reconstruction Method Based on Coarse DEMs for Flood Simulation[J]. ENVIRONMENTAL MODELING & ASSESSMENT,2023,N/A. |
| APA | Ma, Yongyong,Hou, Jingming,Liu, Wei,Li, Bingyao,Wang, Tian,&Wang, Feng.(2023).Refined Three-Dimensional River Channel Reconstruction Method Based on Coarse DEMs for Flood Simulation.ENVIRONMENTAL MODELING & ASSESSMENT,N/A. |
| MLA | Ma, Yongyong,et al."Refined Three-Dimensional River Channel Reconstruction Method Based on Coarse DEMs for Flood Simulation".ENVIRONMENTAL MODELING & ASSESSMENT N/A(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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