In this study, we used historical topographic maps, satellite images, and original aerial photographs, which were taken using aerial stereo photography technology, to make digital elevation models that mimicked the recovery process of topographic evolution. After reviewing the three types of maps and images, we chose the Putanpunas stream watershed to mimic the recovery process of topographic evolution. Aerial photos were used to construct a digital elevation model for analyzing the topographic evolution. We found the largest change in elevation to be 45 m at an upstream location. Midstream and downstream changes in elevation were less than 8 m. A hydrological analysis provided solid evidence confirming the accuracy of the mimicked topographic evolution of a landslide site. Utilizing these maps and images in combination will serve as a powerful tool for regional planning, hazard assessment, sediment transport management, and environmental protection.
為了持續優化網站功能與使用者體驗,本網站將Cookies分析技術用於網站營運、分析和個人化服務之目的。
若您繼續瀏覽本網站,即表示您同意本網站使用Cookies。