Meter-level resolution Digital Elevation Models (DEMs) have become widely available since airborne LiDAR systems are popular. Although displaying high-resolution DEMs with stereo viewing screen allows us to realistically experience the topographic changes, it is difficult to overlay or inter-analyze with other thematic maps. This study devotes to the theory of deriving topographic parameters from high-resolution DEMs and the visualization of the parameters as raster maps, such as hillshade maps, slope maps, aspect maps, openness maps and multi-directional hillshade maps and so on. These maps enable users to observe topographic features with two-dimensional maps. For demonstration, maps of some example topographic parameters are generated with the Global Mapper. The characteristics and advantages of each topographic parameter will be analyzed through a visual investigation of the maps. The tint scheme and color continuity of multiple frames will be discussed as well. The combination of multiple topographic parameters into a map will also be assessed to display topographic information, which meets the requirements of some particular applications. This study is expected to be useful for a variety of applications of high-resolution DEMs.
|出版狀態||Published - 2015 一月 1|
|事件||36th Asian Conference on Remote Sensing: Fostering Resilient Growth in Asia, ACRS 2015 - Quezon City, Metro Manila, Philippines|
持續時間: 2015 十月 24 → 2015 十月 28
|Other||36th Asian Conference on Remote Sensing: Fostering Resilient Growth in Asia, ACRS 2015|
|城市||Quezon City, Metro Manila|
|期間||15-10-24 → 15-10-28|
All Science Journal Classification (ASJC) codes