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研究生(外文):CHEN, BIN-JIUN
論文名稱(外文):Spatiotemporal Analysis of PM2.5 Dispersion in Puli, Taiwan
外文關鍵詞:Prewitt operatorline detectionpoint detectionspatiotemporal analysisPM2.5
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埔里鎮坐落於埔里盆地之內,因地形因素導致PM2.5容易沉積,除此之外還有許多汙染因素,如有國道6號貫穿埔里鎮,且鄰近觀光景點日月潭不遠,帶來大量交通量,進而產生大量碳排放使埔里PM2.5更加嚴重,此外還有農民燒草、工業排放等因素影響,使PM2.5時常處於高濃度狀態,不利於鎮民健康,而在高濃度PM2.5的環境下活動,無疑是慢性殘害身體健康。本研究以埔里鎮架設的微型感測器PM2.5資料為主,並參考中央氣象局的氣象資料與埔里鎮的土地資料、等高線、汙染源地圖等綜合資料。以布里威特運算(Prewitt operator)、線擷取、點偵測等多種影像分析處理技術進行多尺規研究,並在傳統遮罩加入時間概念,能夠分析不同時間PM2.5流動的現象。並從多種研究概念的排列組合中,找出適合分析污染源、PM2.5流動、PM2.5分布等多種情況下相對應的遮罩設計。期望能從埔里PM2.5濃度變化找出相關特徵,研究有哪些因素對埔里PM2.5造成嚴重影響。未來可以將研究範圍擴大至中台灣,並納入更多感測器及環保署設立的空氣品質監測站,研究PM2.5的大範圍流動。
Puli Township is located in Puli Basin and PM2.5 is easy to concentrate because of the terrains of Puli Basin. In addition, there are many pollution sources. For example, the National Highway No. 6 is not far from the Sun Moon Lake, seducing a large number of tourist cars and buses which yield a lot of air pollutions and make PM2.5 concentrations in Puli more serious. In addition, crops burning, industrial gas emissions and other factors also contribute to the heavy concentrations and spoil citizens’ health. The multi-source data of this study come from the PM2.5 micro sensors in Puli, meteorological data of the Central Weather Bureau and the comprehensive data of the land use, terrain contours, and monitored pollution sites.
The study uses various image analysis and processing techniques, such as Prewitt operator, Line detection, Point detection, and adds time concept to traditional shielding, which can analyze the phenomenon of PM2.5 phenomena at different times And from a variety of research concepts arranged combination, to find a suitable for analysis of pollution sources, PM2.5 phenomena, PM2.5 distribution and other conditions corresponding to the mask design. It is expected that the relevant characteristics can be found from the change of PM2.5 concentration in Poli and the factors of which have a serious impact on PM2.5 in Puli..In the future, the scope of research could be expanded to Central Taiwan and more sensors and air quality monitoring stations set up by the Environmental Protection Agency could be included to study the widespread flow of PM2.5.

致謝詞 i
摘 要 ii
Abstract iii
目 次 v
表 目 次 viii
圖 目 次 ix
第一章 緒論 1
1.1 研究動機 1
1.2 研究背景 2
1.3 研究目的 2
1.4 研究架構 3
第二章 文獻探討 4
2.1 PM2.5對健康影響 4
2.2 遮罩傳統應用 7
2.2.1 角點擷取 7
2.2.2 線擷取 7
2.2.3 邊擷取 8
2.3 大氣與空間分析 10
2.4 步態能量圖像 11
第三章 研究方法 13
3.1 資料來源 13
3.2 風速風向玫瑰圖 14
3.3 缺失值處理 15
3.3.1 加權式線性內插 15
3.3.2 高斯平滑 16
3.4 空汙特徵分析工具 17
3.4.1 點擷取 20
3.4.2 線擷取 21
3.4.3 布里威特運算 22
3.4.4 梭柏運算 23
3.5 時空分析 24
3.6 步態能量影像 25
第四章 實驗結果 27
4.1 埔里風向風速分析 27
4.2 埔里地形環境 40
4.3 埔里土地使用圖 41
4.4 埔里汙染源分佈 42
4.5 不同位置、同時間遮罩分析 42
4.5.1 點汙染 42
4.5.2 線汙染 46
4.5.3 邊緣汙染 49
4.5.4 合併多方向邊緣汙染 52
4.6 同位置 不同時間遮罩實驗 55
4.7 不同位置 不同時間遮罩實驗 57
4.8 特殊情境 60
4.8.1 颱風 60
4.8.2 節慶 62
4.8.3 上下班 65
第五章 結論 67
參考文獻 68
一、中文部分 68
二、英文部分 68


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