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系統識別號 U0026-2708201015195000
論文名稱(中文) 應用福衛三號觀測資料探討極光區全電子含量在南北半之異同
論文名稱(英文) Analysis of total electron content in the auroral regions of the northern and southern hemispheres based on FORMOSAT-3/COSMIC data
校院名稱 成功大學
系所名稱(中) 太空天文與電漿科學研究所
系所名稱(英) Assistant, Institute of Space, Astrophysical and Plasma Sciences(ISAPS)
學年度 98
學期 2
出版年 99
研究生(中文) 李軒銘
研究生(英文) Hsuan-Ming Lee
學號 la697103
學位類別 碩士
語文別 中文
論文頁數 88頁
口試委員 指導教授-談永頤
口試委員-汪愷悌
口試委員-許志浤
中文關鍵字 極光  總電子密度含量  掩星觀測資料  南半球  北半球 
英文關鍵字 aurora  AE index  TEC  northern  southern  GOX 
學科別分類
中文摘要 南半球極光區的觀測相對於北半球的少,是因為南半球沒有那麼多地面觀測站,在這個前提下我們利用統計的方式來呈現南北半球極光區的關聯。本文根據福衛三號所得到掩星觀測儀的資料再加以計算得到總電子密度含量。另一方面,利用掩星觀測儀資料所對應的極光電噴流參數,藉由總電子密度含量與此參數作累積機率的方式來探討全球地磁緯度與地磁時間下,所計算出的總電子密度含量的機率圖形,將資料分為季節性以及全年性加以討論,發現資料在季節的區分下與三年總資料下的分析結果具有相同的結論。南北半球在低緯度地區電子密度總和與極光電噴流參數普遍不相關,高緯度地區則隨著極光電噴流參數愈大,南北半球資料在極光區裡的電子密度總和愈大。此外本文利用所定義的符合度探討南北半球極光區裡的相關性,發現南北半球在極光區裡相關性較非極光區高並且當極光電噴流參數較高時,南北半球高緯度極光區電子密度總和的相關性也較高。本論文所討論之南北半球之間的總電子密度含量關聯性將對於了解南北半球之間關聯性的研究有所幫助。
英文摘要 Observations of the aurora zone in the southern hemisphere are fewer compared with the northern hemisphere, because there are not many ground stations in the south hemisphere. We use statistical methods to study the relation between the aurora zones in the northern and southern hemispheres. Based on GOX data from FORMOSAT-3, we calculate the total electron content (TEC) at various locations in the ionosphere. We also find the AE index corresponding to the GOX data. The relations between TEC and AE are discussed. Cumulative probabilities associated with TEC and AE index are found for various magnetic local time (MLT) and magnetic latitudes (MLAT). The relation between the TEC in the southern and northern hemispheres is analyzed and discussed based on 3-years' data, with and without separating them under seasonal consideration. We arrive at similar conditions for the two kinds of data. In the southern and northern hemispheres, TEC and AE index are unrelated at low MLAT, but highly related at high MLAT when AE index increases . Generally, TEC in the auroral region is larger than other MLAT ranges. Based on various conditions regarding the connection between TEC in the two hemispheres, we find good correlation for the auroral region MLAT as the AE index is high. Finally, the discussion on TEC-AE relation in this study may improve the understanding of the connection between the northern and southern hemispheres.
論文目次 摘要……………………………………………………………… I
Abstract…………………………………………………………… II
致謝……………………………………………………………… IV
目錄 ……………………………………………………………… V
表目錄 …………………………………………………………… VIII
圖目錄 …………………………………………………………… IX
第一章 序論
1.1 研究背景……………………………………………………1
1.1.1 全天空照相機………………………………………1
1.1.2 衛星影像……………………………………………3
1.1.3 極光電噴流參數...…………………………………5
1.2 AE與極光的關係…………………………………………8
1.3 研究目的 ………………………………………………………11
第二章 資料來源
2.1 福爾摩沙衛星三號………………………………………12
2.2 全球定位系統……………………………………………15
2.3 GOX觀測方式介紹.………………………………………16
2.4 GOX資料反推原理
2.4.1 TEC計算方法..………….………………………..19
2.4.2 如何由TEC反推回N(h)…………………………23

第三章 統計方法與資料處理
3.1 推導統計方法..……………………………………………28
3.2 應用方法
3.2.1 TEC 與 AE的關係………………………………36
3.2.2 資料處理的流程……………………………………36
第四章 資料的討論
4.1 f圖形的討論
4.1.1 根據三年資料來討論……………………………....46
4.1.2 根據季節來討論..…………………………………..51
4.2 南北半球f相關性探討
4.2.1 南半球北半球百分比相關………………………….66
4.2.2 指定條件下百分比f值相關分析…………………..67
4.2.3 高緯度地區相關…………………………………….70
第五章 結論與建議
5.1 結論……………………………………………………….80
5.2 建議……………………………………………………….82
參考文獻………………………………………………………………83
附錄……………………………………………………………………85
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