KMS Institute of Mountain Hazards and Environment,CAS
| DEM-based Watershed Topographic Attributes Extraction and Analysis | |
| Language | 英语 |
| Yuan Lifeng1; Zhou Qigang1; Zhang Qingfeng2; Li Wenwen3; Jiang Weiguo4 | |
| 2006 | |
| Source Publication | 2006 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-8 |
| Pages | 902-904 |
| meeting | IEEE International Geoscience and Remote Sensing Symposium (IGARSS) |
| Conference Date | JUL 31-AUG 04, 2006 |
| Conference Place | Denver |
| Country | CO |
| Publication Place | NEW YORK |
| Publisher | IEEE |
| Contribution Rank | 1 |
| Abstract | 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. |
| Keyword | DEM Topographic attribution Watershed delineation |
| DOI | 10.1109/IGARSS.2006.234 |
| ISBN | 978-0-7803-9509-1 |
| ISSN | 2153-6996 |
| Indexed By | EI ; CPCI |
| Accession number | Accession number:20074110856339 |
| WOS ID | WOS:000260989400229 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/33512 |
| Collection | 成都山地所知识仓储（2009年以前） |
| Corresponding Author | Yuan Lifeng |
| Affiliation | 1.Institute of Mountain Hazards and Environment, Graduate School, CAS, Beijing, China; 2.College of Resources and Environment, NWAFU, Yangling, China; 3.State Key Laboratory of Remote Sensing Information Sciences, IRSA, CAS, Beijing, China; 4.College of Resources Science and Technology, BNU, Beijing, China |
| First Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation GB/T 7714 | Yuan Lifeng,Zhou Qigang,Zhang Qingfeng,et al. DEM-based Watershed Topographic Attributes Extraction and Analysis[C]. NEW YORK:IEEE,2006:902-904. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 1-04241381.pdf（599KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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