圖書典藏及影音數位平台

本計畫擬於103年度施做二次淤積測量工作，預定於103年第一次豪大雨後辦理水面以下測量，以多音束測深儀量測水深，水面上以航拍技術配合空載光達（LiDAR），製作庫區數值地形模型及數值高程模型（DEM）等，量測範圍為EL.235M並再往外推100公尺水平範圍，應涵蓋水庫兩旁台三線道路，並包括大壩及溢洪道至落水池為止。另外於汛期過後須辦理水面下以測深儀量測水深，並進行水庫容積計算，以比較了解歷年之淤積情形。

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 works to improve and expand of irrigated farmland in Chianan region, but also possesses with hydroelectric Power, water supply system and flood control, etc. The large amounts of sediment was transposed to storage from the reservoir by flood since it has been storaged and through several typhoons and heavy rain. This situation will result unfavorable effect on the operation of the reservoir. In order to execute silt dredging and watershed management effectively, so this plan uses Airborne-LIDAR and Multibeam to conduct data collection, which are with high accuracy and high density. According to the result of analysis of erosion and siltation, this plan becomes the foundation of dredging engineering and watershed management etc.