台灣地區中界層於第22-23太陽週期間之特性研究

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姓名

陳建誠(Chien-Cheng Chen) 查詢紙本館藏

畢業系所

太空科學研究所

論文名稱

台灣地區中界層於第22-23太陽週期間之特性研究

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摘要(中)

中界層（Intermediate and Descending Layer, IDL)是存在於F層底部之一薄層狀結構，其形成機制主要與E-F層間電子谷中的南北向中性風風切有關。中界層在形成後會緩慢地向下往E層移動，其移動特性與大氣潮汐變化有關。本論文利用台灣地區之電離層探測儀，探討其上空中界層特性與大氣潮汐於太陽週期間的變化。經由統計分析1989-2000年間的觀測資料，得知中界層發生機率與太陽活動呈現負相關。潮汐週期於夏、秋、及冬季時不受太陽週期影響，於春季時則與太陽活動有關。最後，濃度於太陽週期間之分布趨勢與太陽活動呈現正相關。

關鍵字(中)

★ 中界層
★ 太陽週期

關鍵字(英)

★ Intermediate and Descending Layer
★ IDL
★ solar cycle

論文目次

致謝............................ii
目錄...........................iii
圖目錄............................iv
第一章導論.........................1
1.1 電離層......................1
1.2 中界層......................2
1.3 研究目的與論文內容..........9
第二章觀測儀器與資料研判..........10
2.1 電離層探測儀...............10
2.2 資料研判方式...............11
第三章資料處理與分析..............14
3.1 發生機率之月分布...........14
3.2 發生機率與高度之日變化.....18
3.3 濃度變化...................35
第四章討論與結論..................39
4.1 發生機率與太陽週期.........39
4.2 潮汐與太陽週期.............41
4.3 濃度與太陽週期.............42
4.2 結論.......................43
參考文獻............................44

參考文獻

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指導教授

劉正彥(Jann-Yenq Liu)

審核日期

2003-7-3

推文