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姓名 莊適銘(Shih-Ming Chuang) 查詢紙本館藏 畢業系所 太空科學研究所 論文名稱 臺灣地區電離層季節異常與太陽活動之相關性研究
(The Relativity between Season Anomaly of Ionoshpere and Solar Activity in Taiwan)相關論文 檔案 [Endnote RIS 格式] [Bibtex 格式] [相關文章] [文章引用] [完整記錄] [館藏目錄] [檢視] [下載]
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摘要(中) 台灣地處電離層赤道異常區,最大電漿頻率foF2居全球之冠,
本論文利用電離層探測儀,探討台灣地區上空foF2特性與太陽週期間之變化。統計分析第廿一和廿二太陽活動週期,1976-1996,間的觀測資料,得知foF2日變化中出現一年雙峰頻次於午後最為明顯且與電離層電子密度之日變化呈現正相關;年變化方面,雙峰出現頻次與太陽活動及電子密度之年變化也皆呈現正相關。各季極值變化與太陽活動性一致,惟獨夏季極值與太陽活動相關性在0600 LT後較為特出,與另三季極值變化皆相反。各季foF2極值差距除春季減冬季與秋季減冬季外,皆與太陽黑子數呈正相關。而各極值於一年中出現日期則較不受太陽週期影響。摘要(英) Taiwan is right under the equatorial ionization anomaly, EIA, region, and therefore it yields the greatest value in the critical plasma frequency foF2 of the world. This research examines solar activity variations in the foF2 recorded in Taiwan. A statistical investigation of the foF2 during the solar cycle 21 and 22 reveals that the foF2 yields pronounced maximum values in the spring and fall during the post noon period. The appearance of the two maximum is approximately proportional to the diurnal variations of the foF2. Meanwhile, the appearance of the two maximum is found to be in proportional to the solar activity and the yearly mean of the foF2. Variation of the maximum value in the spring and fall, and the minimum value in the winter are similar to those of the solar activity except the summer.
Difference between the extreme generally are proportional to the solar cycle variation, expect between spring and winter as well as fall and winter. The appearance dates of the extreme seem not to be a function of the solar activity.關鍵字(中) ★ 電離層
★ foF2
★ 季節異常
★ 太陽活動關鍵字(英) ★ fOF2
★ solar activity
★ EIA
★ season anomaly論文目次 摘 要 i
Abstract ii
誌 謝 iii
目 錄 iv
圖 目 錄 v
表 目 錄 vi
第一章 緒論 1
1.1 電離層 1
1.2 研究動機 3
第二章 觀測儀器與資料處理分析 5
2.1 觀測儀器 5
2.2 資料處理 7
2.3 資料分析 12
第三章 討論與結論 26
3.1 討論 26
3.2 結論 30
參考文獻 31
附 錄 32
附錄A 33
附錄B 46
附錄C 51參考文獻 Appleton, E. V., Two anomalies in the ionosphere, Nature, 157,691, 1946.
Brekke, A, Physics of the upper polar atmosphere, John Wiley & Sons Ltd, 1995.
Davies, K., Ionospheric Radio, Peter Peregrinus Ltd., London, United Kingdom, 1990.
Huang, Y. N., K. Cheng, and S-W. Chen,On the equatorial anomaly of the ionospheric total electron content near the northern anomaly crest region, Journal of Geophysical Research, 94, 13515-13525,1989.
Kelly, T., Preliminary instructions for turning on, setting up, and initial testing of IPS-42 ionosonde, KEL Aerospace PTY. LTD., Australia, 1981.
Liu, T. Y., Y. I. Chen, and J. S. Lin, Statistical investigation of the saturation effect in the ionosphere foF2 versus sunspot, solar radio noise, and solar EUV radiation, J. Geophys. Res., 108(A2), 1067, doi:10.1029/2001A007543, 2003.
Ratcliffe, T. A., Final remarks of 1957 AGARD conference on sporadic E ionozation, in ionospheric Sporadic E, edited by E. K. Smith and S. Matsushita, p.28, Pergamon Press, New York, 1962.
李建志, 利用數位電離層探測儀與特高頻雷達共同觀測電離層, 博士論文, 國立中央大學太空科學研究所, 2000。
許文榮, 電離層日出前之層峰變化, 碩士論文, 國立中央大學太空科學研究所, 1997。指導教授 劉正彥(Jann-Yenq Liu) 審核日期 2004-7-19 推文 facebook plurk twitter funp google live udn HD myshare reddit netvibes friend youpush delicious baidu 網路書籤 Google bookmarks del.icio.us hemidemi myshare