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題名 | 南部空氣污染與氣象環境相關性分析 |
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作者姓名(中文) | 宋偉國; 洪崇軒; 賈澤民; 巫美儀; | 書刊名 | 航空技術學院學報 |
卷期 | 5:1 民95.08 |
頁次 | 頁23-31 |
分類號 | 445.63 |
關鍵詞 | 空氣污染; 氣象; |
語文 | 中文(Chinese) |
中文摘要 | 本研究選取2004年4月5-30日為研究期,分析高雄地區氣象條件與臭氧分佈相關性,結果顯示4月5-30日共有八段時期為臭氧高污染日,其中五段時期均為高壓迴流天氣型態,顯示高屏地區空氣污染與天氣系統密切關係。本研究選取其中一個高壓迴流案例,分析氣象條件,顯示局部環流相當顯著,臺灣南部白天為西南風或西北風,風速相當弱,臭氧濃度相當高,近地層有逆溫現象,顯示高壓下沉逆溫不利於空氣污染垂直擴散,因白天天氣晴朗,利於臭氧生成,而地面盛行向岸風,將污染物堆積於內陸,加上風速弱,無法水平傳送出去,形成地面堆積高污染濃度現象。 風場模擬方面,Meso模擬臺南與高雄地區風場仍為偏西北風,其外側濱海地區亦為西北風,此區風場顯係為海風發展所致,MM5模擬結果顯示,下午臺南與高雄風向為西北風型態,與Meso模擬結果一致。夜間臺南、高雄北部仍為西北風型態主導,高雄南部則有部分西南氣流,此為氣流過山之影響。本個案高壓迴流之模擬,海風則顯著,MM5與Meso模擬南臺灣大致均為之西北風,二者結果大致接近,顯示未來應該可以使用Meso模擬空氣污染傳送過程。 |
英文摘要 | We choose a period occurred from 5th to 30th April in 2004 to analysis the relationship between the local circulation and the distribution of the Ozone. There were 8 cases of high ozone concentration during these periods The synoptic weather belongs to weak high pressure pattern. This result showes that the relationship is significant between weather pattern and ozone . The wind over the southern Taiwan blows southwesterly or northwesterly at daytime. The concentration of the ozone reaches the maxim during the mid-noon and afternoon. The relation is closely between the distribution of the ozone concentration and the local circulation. The wind is weak and the reverse temperature owing to subsidence of the high pressure such that is favored formation of the higher concentration of the ozone. Also, the compare between the model of Meso and MM5 is similar. The result implys that we can use the simple Meso model to replace the MM5 for simulation of the local circulation at the Kaoshung. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。