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| 研究生： |
李紳豪 Lee, Shen-Hao |
|---|---|
| 論文名稱： |
探討地面磁場的變化與極光區位置的關係 Study of the Ground Magnetic Field Variations in Relation to the Location of the Auroral Zone |
| 指導教授： |
談永頤
Tam, Sunny W.Y. |
| 學位類別： |
碩士 Master |
| 系所名稱： |
理學院 - 太空天文與電漿科學研究所 Institute of Space, Astrophysical and Plasma Sciences(ISAPS) |
| 論文出版年： | 2012 |
| 畢業學年度： | 100 |
| 語文別： | 中文 |
| 論文頁數： | 207 |
| 中文關鍵詞： | 極光區 、東西向極光電噴流 、極光電噴流參數 、AE觀測站 、地面磁場 |
| 外文關鍵詞： | Auroral Zone, Eastward and Westward Auroral Electrojets, Auroral Electrojet Index, AE observatories, Ground Magnetic Field |
| 相關次數： | 點閱：87 下載：0 |
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在本篇論文中，我們利用地面觀測站的磁場與極光電噴流參數(AE indices)為我們主要分析的資料，主要目的是希望利用極光區內的8個AE觀測站的地面磁場變化與AE參數來做分析，透過AE參數位於100~400範圍內的相關係數、橫向磁場的平均值在較大的偏差下發生的頻率、和機率密度分佈圖等三種不同的分析，可以幫助我們了解在極光區內受到極光電噴流影響下，具有的磁場擾動現象。而利用這些觀察出的現象，可以訂立出一套極光區的標準。並同時利用這套標準對不同緯度的測站進行分析，其中分成四大地區:分別為極光區非AE測站、極地區域測站、位於極光區與極地之間的測站、最後為中低緯度的測站來進行分析。
藉由對不同地區做上述三種分析，來觀察與極光區的標準有何差異性，並可以透過這樣的差異性來瞭解不同地區受到磁場擾動的電流不同，所呈現的結果也就不同。而透過對不同緯度下的分析結果，在未來可以判斷該地面測站是否受到極光影響。
The main purpose of this thesis is to analyze the ground magnetic field variation and AE indices from 8 AE observatories, it helps us to understand the magnetic disturbance phenomenon under the auroral electrojet in auroral zone through three different analyses, which are correlation for the data within the range AE=100~400, frequency of occurrence for large deviation from the mean values of horizontal magnetic field, and probability density distribution, and establish the auroral standards with the observation phenomenon.
With the standards established, we analyze four observatories with different latitudes, which include a non-AE observatory in the auroral zone, one in the polar cap, one between the auroral zone and the polar cap, and one at medium-low latitude.
Finally we study the differences between the four observatories at different latitudes based on the three different analyses, and observe the magnetic perturbations due to the different current systems in the ionosphere. Through the difference of the properties of the magnetic field variation, we can distinguish, in particular, if the ground magnetic field of an observatory is influenced by the auroral particle precipitations.
Chen, F. F., Introduction to Plasma Physics and Controlled Fusion, Plenum Press, New York, 1974.
Davis, T. N., Negative correlation between polar cap visual aurora and magnetic activity, J. Geophys. Res., 68, 4447, 1963.
Ghodgaonkar, D. K., Vasundara, V. V., and Varadan, V. K., A free-space method for measurement of dielectric constants and loss tangents at microwave frequencies, IEEE Trans. Instrum. Meas., 37, 3, 1989.
Hartfuss, H. J., Geist, T., and Hirsch, M., Heterodyne methods in millimetre wave plasma diagnostics with applications to ECE, interferometry and reflectometry, Plasma Phys. Control. Fusion, 39, 1693, 1997.
Horwitz, J. L. and Akasofu, S. I., On the relationship of the polar cap current systerm to the north-south component of the interplanetary magnetic field, J. Geophys. Res., 84, 2567, 1979.
Kivelson, M. G. and Russell, C. T., Introduction to Space Physics, Cambridge University Press, New York, 1995.
Kawasaki, K. and Akasofu, S. I., A study of polar cap and auroral zone magnetic variations, World Data Center A for Solar-Terr. Phys. Rep. UAG-18, U. S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Data Service, 1972.
Musil, J. and Zacek, F., Microwave measurement of complex permittivity by free space methods and their applications, Elsevier Science Publishing Company, 22, 275, 1986.
Pozar, D. M., Microwave Engineering. 2nd ed. John Willey & Son, 1998.
Rostoker, G. and Phan, T. D., Variation of auroral electrojet spatial location as a function of the
level of magnetospheric activity, J. Geophys. Res., 91, 1716, 1986.
Rodgers, J. L. and Nicewander, W. A., Thirteen ways to look at the correlation coefficient, The American Statistician, 42, 59, 1988.
Sun, W. and Akasofu, S. I., A source of auroral electrons and the magnetospheric substorm current systems, J. Geophys. Res., 108, 8006, 2003.
Takahashi, K., Meng, C., Kamei, T., Kikuchi, T. and Kunitake, M., Near real-time aurora electrojet index: An international collaboration makes rapid delivery of aurora electrojet index, Space Weather, 2, S110033, 2004.
參考網站:
http://en.wikipedia.org/wiki/Tokamak.
http://www.usiter.org/imges/iter_full.jpg
http://epaper.kek.jp/e98/PAPERS/WEP09A.PDF
http://pitjournal.unc.edu/volume1/issue1/pogrebnyak
http://physicsworld.com/cws/article/print/43875
http://etds.lib.ncku.edu.tw/etdservice
/download_file?etdun=U0026-0812200915130713&
fileName=U0026-0812200915130713-1.pdf
http://sf.nctu.edu.tw/award/past/five/article
/popsci6_content.php
http://phys.ncku.edu.tw/~astrolab/e_book/sun/captions
/magnetosphere.html
http://wdc.kugi.kyoto-u.ac.jp/aedir/index.html
http://johnmayhk.wordpress.com/2008/08/07/correlation/
http://en.wikipedia.org/wiki/Correlation
http://biostatistics.cmu.edu.tw/online
/teaching_corner_031.pdf http://mail.cmu.edu.tw/~tcli
/%B2%C4%A4Q%A4%BB%B3%B9.pdf
http://www.mcu.edu.tw/department/management/stat/ch_web
/etea/Statistics-3-net/chap23.pdf
http://140.116.77.14/mate/lab2/Course/962sta/ch4.pdf
http://dufu.math.ncu.edu.tw/calculus/calculus_eng
/node232.html
http://www.phy.ntnu.edu.tw/demolab/html.php?html=Notes
/dataProcess
http://www.nasa.gov/mission_pages/themis/auroras
/substorm_history.html.
http://en.wikipedia.or/wiki/File:Magnetosphere_rendition.jpg
http://wdc.kugi.kyoto-u.ac.jp
http://www.space.dtu.dk/English/Research
/Scientific_data_and_models/Magnetic_Ground_Stat
ions.aspx
http://wdc.kugi.kyoto-u.ac.jp/aedir/index.html
http://roma2.rm.ingv.it
http://www.intermagnet.org/Imomap_e.php
http://mail.cmu.edu.tw/~tcli/%B2%C4%A4Q%A4%BB%B3%B9.pdf
http://zh.wikipedia.org/wiki/
http://allthen.wordpress.com/2006/05/11/