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姓名	呂英賢(Ying-Hsien Lu)  查詢紙本館藏	畢業系所	太空科學研究所
論文名稱	中華衛星一號觀測電離層中緯度電漿團之研究
相關論文	★ 阻滯電位分析儀之數值模擬 ★ 中華衛星一號電離層電漿電動效應儀(IPEI)資料之頻譜分析 ★ 中華衛星一號電位勢阻滯分析儀(RPA)觀測原理及資料分析 ★ 確定雷達流星尾資料之輻射點及其應用於1998年中壢雷達觀測獅子座流星雨 ★ 中華衛星一號觀測電離層電漿氣泡密度變化之統計及研究 ★ 中華衛星一號觀測電離層較大的電漿氣泡在季節及經度之統計與研究 ★ 中華衛星一號所觀測由磁暴突始產生的電漿波脈動現象 ★ ROCSAT 1姿態受外力擾動之探討 ★ 磁暴期間快速滲入電場對磁赤 道地區電離層上升運動速度的影響 ★ 太空飛行碎片對運行於地球軌道物體的碰撞機率 ★ 赤道地區日落後垂直上昇速度與不規則體發生的相關性研究 ★ 以中華衛星一號(福衛一號)在1999至2004年的觀測資料來研究低緯度電離層電漿團在全球、四季及地方時間的分佈 ★ 利用福衛一號的資料探討間熱帶輻合區中的深層對流與電離層不規則體相關性
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摘要(中)	在研究中華衛星一號觀測電離層的資料時，我們看到許多電漿密度突然增加的現象。Oya et al.在1986年首次利用Hinotori衛星(圓軌道、650km高度、31.4度傾角)資料報導此現象，把此現象定名為blob。並且對其出現的特徵做了一年(1981/2/22~1982/2/22約1000個不規則體)的統計資料分析。發現分佈在赤道異常區外的blob和赤道地區的bubble兩者除了有類似的尺度，其他特徵如發生地點、冬夏比春秋易發生、在低磁擾動和低太陽輻射下也較易發生的情況都和bubble相反。表示blob絕不是產生bubble的機制可以解釋的。 本篇論文探討在華衛一號1999年接近太陽黑子極大期所觀測到的blob資料再作統計分析，與Oya et al.在1986年針對1981年太陽黑子極大期所做的統計資料給與驗證。並對其出現的特徵作進一步的分析。此外並探討產生中緯度不規則體的兩個機制:Perkins instability、instability of Es Layer，發現到此兩機制的背景資料，例如最容易發生不穩定的時間是在夜晚，地點是在中緯度電離層，且Perkins不穩定產生不規則體內部的flow，也就是具備outward、poleward、westward或eastward flow，幾乎都和我們所觀測到的blob內部的flow相吻合。且Es Layer instability所產生的spread Es 絕大部份都是往西南向漂移，其西向的flow也和本篇論文探討的blob中，98%的西向運動的結果是一致的。我們將利用這些結果去了解blob可能出現的原因。
關鍵字(中)	★ 電漿團	關鍵字(英)	★ blob
論文目次	目錄 摘要………………………………………………Ⅰ 誌謝………………………………………………Ⅱ 目錄………………………………………………Ⅲ 圖目錄……………………………………………Ⅴ 表目錄……………………………………………Ⅶ 第一章 前言................................. ....... 1 1.1赤道地區及中緯度電離層背景介紹與研究動機 ………………1 1.2 blob的歷史 ……………………………………………………11 第二章 華衛一號觀測結果………………………… 14 2.1中華衛星一號的座標系統 …………………………………… 14 2.2 觀測資料 ……………………………………………………14 2.2.1 single blob …………………………………………………15 2.2.2 blobs with midlatitude irregularities ………………15 2.2.3 blobs with bubbles ………………………………………15 2.3 統計資料 ……………………………………………………16 2.3.1 統計方法 ……………………………………………………16 2.3.2 統計結果 ………………………………………………16 第三章 中低緯度不規則體產生機制 ………28 3.1 Perkins instability ………………………………………28 3.1.1夜間中緯度電離層背景介紹和Perkins model……………28 3.1.2 Perkins 穩定……………………………………………… 30 3.1.3 Perkins 不穩定…………………………………………… 33 3.2 Es Layer instability……………………………………… 37 3.2.1 E層和Es 層簡介………………………………………… 37 3.2.2 Pedersen and Hall 極化………………………………… 41 3.2.3 Es Layer instability model ………………………… 42 3.2.4 Es layer 不穩定的消失……………………………………48 3.3 討論…………………………………………………………… 49 第四章 中緯度不穩定機制與blob的關聯. 50 4.1 blob 可能產生原因 ………………………………………… 50 4.2 blob的產生和Perkins 不穩定的關係 …………………… 52 4.3 case study…………………………………………………… 54 4.4 blob的產生和Es Layer不穩定的關係 …………………… 57 第五章 討論與結論……………………………………… 69 5.1 Perkins 不穩定的歷史背景和blob的探討 ……………… 69 5.1.1 Perkins的growth rate太小的問題…………………… 69 5.1.2 Perkins不穩定的西向運動……………………………… 70 5.1.3中緯度不規則體的極區向運動 …………………………… 72 5.1.4 sunspot和Perkins不穩定的關係 …………………… 73 5.2 Es Layer 不穩定的歷史背景和blob的探討……………… 78 5.2.1 Es patches的西向漂移…………………………………… 78 5.2.2 Es層電場map到F層的證據:造成F層抬升…………… 78 5.2.3 Spread Es 和blob的探討 ……………………………… 80 5.2.4 sunspot 和 Es Layer 不穩定的關係………………………81 5.3 總結 … …………………………………………………………82 參考文獻........................................... 87 附錄一(電離層簡介) …………………………………………… 93 附錄二(地球dipole介紹)……………………………………… 94 附錄三(GRT不穩定) …………………………………………… 96 附錄四(日地關係圖) ………………………………………… 101 附錄五(磁爆下的Perkins不穩定) … ……………………………102 圖目錄 圖1-1 赤道E層電場map到F層示意圖……………………………….4 圖1-2 傍晚赤道地區電離層抬升圖…………….………………………. 5 圖1-3 GRT不穩定示意圖………………………….…………………….6 圖1-4 線性GRT growth rate隨高度變化圖 ………….……………….. 7 圖1-5 中緯度不規則體和赤道bubble區分圖 …………………………9 圖2-1 single blob quick-look Display(00034)……………….…………..19 圖2-2 blobs with midlatitude irregularities quick-look Display(99221)….. 20 圖2-3 blobs with bubbles quick-look Display(99105)…………………. 21 圖2-4 blob 出現次數和Local Time統計圖………………………….. 22 圖2-5 blob 出現次數和出現月份統計圖………………………….….. 23 圖2-6 blob 出現次數和Dip Latitude統計圖………………….……… 24 圖2-7 single blob出現次數和Dip Latitude統計圖 …………………. 25 圖2-8 blob 出現次數和Kp index統計圖……………………………. .26 圖2-9 blob 出現次數和blob’s type統計圖 ………………………….. 27 圖3-1 中緯度座標示意圖…………………………………………….…29 圖3-2 中緯度和赤道地區電漿穩定情況圖…………………………….31 圖3-3 擾動往東的中緯度地區穩定圖示……………………………….33 圖3-4 擾動往東北的中緯度地區不穩定圖示………………………….34 圖3-5 Earth’s dipole field ………………………………………….……36 圖3-5-1 Perkins flow(1) …………………………………………….…...36 圖3-6 Perkins flow(2)……………………………………………….…...37 圖3-7 E層日夜變化圖………………………………………………….38 圖3-8 Es層示意圖………………………………………………………38 圖3-9 風切定理………………………………………………………….39 圖3-10 電場在磁場裡的電流圖………………………………………….42 圖3-11 Es層 形成圖示 ……………………………………………... 44 圖4-1 Perkins 不穩定和東風的關係圖………………………………...54 圖4-2 99264 quick-look Display ………………………………………..60 圖4-3 99174 quick-look Display ………………………………………..61 圖4-4 00005 quick-look Display ………………………………………..62 圖4-5 99328 quick-look Display ………………………………………..63 圖4-6 00004 quick-look Display ………………………………………..64 圖4-7 99138 quick-look Display ………………………………………..65 圖4-8 99230 quick-look Display ………………………………………..66 圖4-9 99304 quick-look Display ………………………………………..67 圖4-10 blob的內部flow變化統計圖………………………………….68 圖5-1 太陽活動和Perkins growth rate的關係圖 ……………………..76 圖5-2 太陽黑子隨年代變化圖 ………………………………………...77 圖5-3 spread Es 隨當地時間變化圖 ………………………………... 81 圖5-4 1981年blobs出現衛星軌道圖 ………………………………... 86 圖B1-1 電離層隨高度變化圖…………………………………………… 93 圖B2-1 Earth’s dipole field示意圖………………………………………. 94 圖B3-1 ration of gyro to collision frequencies ………………………… 100 圖B3-2 導電性隨高度變化圖 ………………………………………… 100 圖B4-1 日地關係圖 …………………………………………………… 101 圖B5-1 磁爆下Perkins電流往南北緯擴散圖.……………………….. 102 表目錄 表2-1 blob出現次數和Local Time統計資料數值 ……………….….. 22 表2-2 blob出現次數和月份統計資料數值………………………….... 23 表2-3 blob出現次數和磁緯統計資料數值……………………….…... 24 表2-4 single blob出現次數和磁緯統計資料數值 ……………………25 表2-5 blob出現次數和Kp index統計資料數值……………………….26 表2-6 blob出現次數和blob’s type統計資料數值…………………….27 表4-1 blob出現次數和內部flow變化統計資料數值…………………68 表4-2 blob和Perkins flow吻合情形統計資料………………………..68 表B1-1 電離層簡介表……………………………………………………93 表B2-1 地球參數…………………………………………………………95
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指導教授	蘇信一(Shin-Yi Su)	審核日期	2005-7-5
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