Reconstructing the Past, Present and Future of Sandbar Change by remote satellite sensing and UAV Aerial Photography
應用衛星遙測及無人機航拍重現沙洲變遷的過去現在與未來
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          Considering the issue of sustainable ecology, attention has been paid to the problem of widespread use of modern engineering to solve environmental problems, resulting in insufficient sand resources in sandbanks and the reduction of lagoon ecosystem areas. This not only affects the volume of the lagoon itself, but also the ecological environment and industrial aquaculture. As a result, a team led by professor Shih-Chun Hsiao and deputy director Wen-son Chiang of the Tainan Hydraulics Laboratory has been developing strategies of human and environmental adaptation to the changes of sandbanks. Their team is applying hydrological simulation in conjunction with aerial photographs of landform and topography, taken by Professor Jiann-yeou Rau of geomatics, and using the water quality analysis technique of associate professor Chih-hua Chang of environmental engineering for: 1) evaluating how to reduce the groin effect by simulating scenarios; 2) developing UAV photogrammetry for 3D modeling to monitor sandbar changes; and 3) using multispectral and water quality monitoring instruments to analyze changes in salinity following a rainstorm.

          考量生態永續的沙洲變遷議題,關注在現代技術大量利用工程來解決環境問題,導致沙洲沙源不足,以至於潟湖面積減少的問題,這不僅是影響潟湖本身的容積,更影響潟湖本身的生態環境與產業養殖問題,因此本計劃中水工所蕭士俊、江文山副所長團隊應用水文模擬,配合測量系饒見有老師航拍之地貌、地形資訊,並以環境工程的張智華老師之水質分析技術,共同來研擬因應沙洲變遷,環境與人為活動的調適策略:1.透過模擬情境來評估如何減少港口的突堤效應、2.發展UAV攝影3D建模來監測沙洲變遷、3.利用多光譜與水質監測儀器來分析暴雨鹽度變化。