A Study Of Terrain Interpretation by Self-Created Three-Dimensional Visualization Maps

• Main Authors: Li-Ping Li, 李麗萍
• Other Authors: Yu-Shen Hsiao
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/84671051725702605177

碩士 === 國立中興大學 === 水土保持學系所 === 105 === This thesis is aimed at developing self-created three-dimensional visualization maps in order to analyze feasibility of aiding in terrain interpretation. We use Generic Mapping Tools (GMT) for plotting three-dimensional visualization maps, and Fortran programs for processing complex computations. On terrain slope, four methods are adopted and analyzed in this thesis; On terrain openness, we seriously consider the search radius, terrain contrast, and color palette. Furthermore, we create a three-dimensional palette for showing the elevation information on the three-dimensional visualization maps. In this thesis, the study areas include many special terrains in Taiwan, and they are all converted to the self-developed three-dimensional visualization maps. Rigorous analysis and comparisons for these maps are carried out in this thesis. The results show that the three-dimensional visualization maps can better highlight the micro-topographies (gully, trench, sandbank, and so on), and also can provide valuable references for landslide disaster, watershed division and terrain changes. The main purpose of this study is to further bring contributions to the regions of disaster prevention, soil and water conservation, environmental monitoring, and resource exploration.