DEM-based Watershed Topographic Attributes Extraction and Analysis
文献类型：会议论文
| 作者 | Yuan L. F. ; Zhou Q. G. ; Zhang Q. F. ; Li W. W. ; Jiang W. G. ; Ieee |
| 出版日期 | 2006 |
| 关键词 | DEM Topographic attribution Watershed delineation digital elevation model |
| 页码 | 911-913 |
| 英文摘要 | This paper study topographic attributes extraction and analysis methods based on grid DEMs. We used mathematic statistics method and comparative analysis to analyze effect of DEMs with different resolutions on the outcome of topographic terrain extraction, including slope, topographic index (i.e. In (alpha/tan beta)), watershed area, and drainage network. The results show that effect of DEMs with different resolution on topographic attributes is different. Terrain is smoothed, the mean slope decreases, the mean value of In(alpha/tan beta) distribution increases, the total area of watershed increases, the count of subwatersheds decrease, the total length of streams decrease, and the drainage density decreases as DEMs grid size increase. |
| 收录类别 | CPCI |
| 会议录出版者 | Ieee |
| 语种 | 英语 |
| ISBN号 | 978-0-7803-9509-1 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/25374]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Yuan L. F.,Zhou Q. G.,Zhang Q. F.,et al. DEM-based Watershed Topographic Attributes Extraction and Analysis[C]. 见:. |
入库方式： OAI收割
来源：地理科学与资源研究所
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