- 學位論文
利用自動無人水下載具監測水庫水質可行性評估
Feasibility Assessment of Reservoir Water Quality Monitoring by Autonomous Underwater Vehicle
摘要
傳統湖泊水庫大多使用人工採樣進行水質監測，需要花費一定的人力成本和時間成本，且只能依採樣點的監測結果來判斷水質狀況，缺乏全面性及說服力。自動無人水下載具（簡稱AUV）是一種全自動水質監測微型潛艇，經過軟體設定之後可以在一水域內進行非定點的連續監測，而且攜帶方便且可以單人操作，若能應用於湖泊水庫監測，即可在人力較少並較短時間內，進行較全面性的水質監測資料。 本次研究使用AUV進行湖泊水質監測分析，同時進行傳統人工採樣檢測分析，結合並比對兩者數值後，分析湖泊水質狀況並討論AUV應用於湖泊水庫水質監測之適用性。本研究以花蓮縣壽豐鄉之鯉魚潭為實驗場址，鯉魚潭為花蓮著名旅遊景點，每年都會舉行很多陸上活動及水上活動，加上周圍的生活污水排入，水質因而受到影響而惡化，偶爾會有優養化的狀況發生。本研究使用AUV對鯉魚潭分成北、中、南三個區域進行水質連續監測，監測項目有湖泊深度、pH值、溫度、濁度、溶氧、與葉綠素a；同時租船在事先規劃的5個採樣點進行現地人工監測作業，量測水溫、pH值、溶氧、濁度、及透明度，並於定點採取水樣保存後帶回實驗室進行檢測，檢測項目包含導電度、葉綠素a、BOD、COD、總磷、氨氮及大腸桿菌群。 結合本次研究AUV與人工採樣水質監測結果後，使用卡爾森水體營養指數計算，鯉魚潭水質處於普養狀態，限制營養鹽為氮。比對兩者監測結果後，發現AUV監測結果有些微偏高的情形，但是整體數據的趨勢是一致的，只要經過調整與校正，AUV還是能在較短的時間內獲得較全面的水質資料，所以利用AUV來進行水庫水質的監測工作是可行的。
並列摘要
Most traditional lakes and reservoirs make use of manual sampling for water quality monitoring, which costs amount of manpower and time-consuming definitely. Furthermore, the method is lack of both synthesis and persuasiveness since the water quality status had only determined by the monitoring results of sampling points. AUV is a kind of full-automatic water quality monitoring micro submarine, which can carry out non-point continuous monitoring in a water area after being set by software, and it is convenient to carry and it can be operated by one person. If it can be applied to the monitoring of lakes and reservoirs, it can carry out comprehensive water quality monitoring data in a short time with less manpower. In this study, AUV is used for lake water quality monitoring and analysis, and traditional manual sampling and detection are carried out at the same time. After comparing the two values, the water quality of the lake is analyzed and the applicability of AUV in Lake and reservoir water quality monitoring is discussed. In this study, Liyu Lake, Shoufeng Township, Hualian County, is the experimental site, and Liyu Lake is a famous tourist attraction of Hualian County. Many land activities are held every year. In this study, AUV was used to monitor the water quality of Liyu Lake, which was divided into three areas: north, middle and south. The monitoring items included depth, pH, temperature, turbidity, dissolved oxygen, and chlorophyll a. At the same time, the chartering ship entered 5 sampling points in advance carry out field manual monitoring, measure water temperature, pH, dissolved oxygen, turbidity and transparency, and take water samples to be preserved at designated points and then take them back to the laboratory for testing. The test items include conductivity, chlorophyll a, BOD, COD, total phosphorus, ammonia nitrogen and coliform group. Combined with the monitoring results of AUV and artificial sampling water quality in this study, the water quality of Liyu Lake is in the state of Mesotrophic according to the calculation of Carlson trophic state index, and the nutrient salt is limited to nitrogen. After comparing the monitoring results of the two, it is found that the AUV monitoring results are slightly higher, but the overall trend of data is the same. As long as adjusted and corrected, the AUV can be obtained in a relatively short time. Therefore, it is feasible to use AUV to monitor the water quality of the reservoir.