A terrain openness index for the extraction of karst Fenglin and Fengcong landform units from DEMs
文献类型：期刊论文
| 作者 | Meng, Xin; Xiong, Li-yang; Yang, Xian-wu; Yang, Bi-sheng; Tang, Guo-an |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 15期号:4页码:752-764 |
| 关键词 | DEM Karst landform Fenglin and Fengcong landform Terrain openness Landform units |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-017-4742-z |
| 文献子类 | Article |
| 英文摘要 | The Fenglin and Fengcong landform units are considered to be an important representation for defining the degree of development of Karst landforms. However, these terrain features have been proven difficult to delineate and extract automatically because of their complex morphology. In this paper, a new method for identifying the Fenglin and Fengcong landform units is proposed. This method consists of two steps: (1) terrain openness calculation and (2) toe line extraction. The proposed method is applied and validated in the Karst case area of Guilin by using ASTER GDEM with one arc-second resolution. The openness of both the positive and negative terrain and a threshold were used to extract toe lines for segmenting depressions and pinnacles in Fenglin and Fengcong landforms. A comparison between the extracted Fenglin and Fengcong landform units and their real units from high resolution images was carried out to evaluate the capability of the proposed method. Results show the proposed method can effectively extract the Fenglin and Fengcong landform units, and has an overall accuracy of 93.28%. The proposed method is simple and easy to implement and is expected to play an important role in the automatic extraction of similar landform units in the Karst area. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000429949900007 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35420]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.4 |
| 推荐引用方式 GB/T 7714 | Meng, Xin,Xiong, Li-yang,Yang, Xian-wu,et al. A terrain openness index for the extraction of karst Fenglin and Fengcong landform units from DEMs[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(4):752-764. |
| APA | Meng, Xin,Xiong, Li-yang,Yang, Xian-wu,Yang, Bi-sheng,&Tang, Guo-an.(2018).A terrain openness index for the extraction of karst Fenglin and Fengcong landform units from DEMs.JOURNAL OF MOUNTAIN SCIENCE,15(4),752-764. |
| MLA | Meng, Xin,et al."A terrain openness index for the extraction of karst Fenglin and Fengcong landform units from DEMs".JOURNAL OF MOUNTAIN SCIENCE 15.4(2018):752-764. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。