| 基于DEM的永平县森林防火瞭望台可见性分析 |
| |
| 引用本文： | 阳昭. 基于DEM的永平县森林防火瞭望台可见性分析[J]. 林业调查规划, 2020, 45(1): 67-71 |
| |
| 作者姓名： | 阳昭 |
| |
| 作者单位： | 永平县林业和草原局,云南 永平 672600 |
| |
| 摘 要： | 为获取永平县4个森林防火瞭望台观测到的可见区域面积等数据,在ArcGIS10.2下采用ArcMap10.2的3D分析工具和其它地理处理工具,基于永平县等高线数据生成DEM用于可见性分析获取瞭望观测可见区域面积;下载ASTER GDEM V2版的DEM数据用于天际线分析获取瞭望观测视线覆盖范围。分析结果表明:瞭望台可直接瞭望观测到的可见面积占永平县域面积的19.7%,县域面积均在其瞭望观测视线覆盖范围内,通过瞭望台可直接瞭望观测或间接监测到全县林火情况。
|
| 关 键 词： | 森林防火瞭望台 DEM 可见性分析 天际线分析 瞭望观测 视线覆盖范围 永平县 |
Visibility Analysis of Forest Fire Observatory in Yongping County Based on DEM |
| |
| YANG Zhao. Visibility Analysis of Forest Fire Observatory in Yongping County Based on DEM[J]. Forest Inventory and Planning, 2020, 45(1): 67-71 |
| |
| Authors: | YANG Zhao |
| |
| Affiliation: | (Yongping Forestry and Grassland Bureau,Yongping,Yunnan 672600,China) |
| |
| Abstract: | In order to obtain the visible area data of four forest fire observatories in Yongping County,the 3D analysis tools and other geographical processing tools of ArcMap10.2 were used to generate DEM based on contour data of Yongping County for visibility analysis.DEM data of ASTER GDEM V2 was downloaded for skyline analysis to obtain the coverage of observation in sight.The results showed that the visible area directly observed by the observatories accounted for 19.7%of the area of Yongping County.The forest fires of the whole county which was within the scope of its observation in sight could be directly observed or indirectly monitored by the observatories. |
| |
| Keywords: | forest fire observatory DEM visibility analysis skyline analysis observation coverage of observation in sight Yongping County |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
