圖書典藏及影音數位平台

曾文水庫興建於曾文溪上游，主要目標為調節並充分利用曾文溪之水資源，改善與擴充嘉南地區耕地之灌溉，完成後兼具水力發電、給水及防洪等效應。水庫自蓄水以來，歷經多次颱風豪雨侵襲，水庫集水區洪水造成大量泥沙推移至蓄水區域內，其淤落之分佈情形及其可能對水庫營運產生不利之影響，為有效執行曾文水庫之清淤排淤、集水區治理等計畫，故辦理本案以空載光達配合多音束水深測量獲取高精度及高密度測點資料，藉由成果資料瞭解沖淤區域、大小及原因，作為後續執行清淤排淤、集水區治理等計畫之依據。

TsengWen Reservoir built in upstream of TsengWen River. The main objective is regulation and making full use of water resources of TsengWen River. TsengWen Reservoir not only to improve and expand of irrigated farmland in Southwest region, but also possesses with hydroelectric Power, water supply system and flood control etc. Since the reservoir water has gone through several typhoons and heavy rain hit. Reservoir watershed pushed to move large amounts of sediment to storage area caused by flood water. This situation will result unfavorable effect on operation of reservoir. In order to execute silt dredging engineering, and management of watershed effectively, so this plan use Airborne-LIDAR and Multibeam to conduct data collection, which with high accuracy and high density. According to the result for analysis of erosion and siltation, this plan becomes the foundation for follow-up plans of the silt dredging engineering, management of watershed etc.