臺灣博碩士論文加值系統

本論文利用電離層探測儀觀測電離層最大層峰foF2的資料來研究強地震發生前電離層電漿密度的變化情形。首先引進統計方法以地震前的觀測資料建立判別地震徵兆之參考背景。以此方法探討1994~1997年間，規模(Mw)≧5.0地震期間之電離層。發現地震前foF2之變化可歸納出一判別模式。此模式在四年期間於地震發生之前三天內偵測到地震訊號的比率為69%，而地震前五天內偵測到訊號的比率可達82%。同時發現地震之規模愈大其偵測到的比率也愈高。此外亦發現判別模式出現於地震前不同天數時也會有某種特性與趨勢。以1998年之地震為檢測，結果此一特性與趨勢和測試資料變化相互吻合。

This research work studies the ionospheric penetration frequency foF2 recorded by an ionosonde to understand ionospheric density variations priori the occurrence of earthquakes. A statistic method is introduced to construct a reference which is employed to find the precursor of the earthquakes. Base on the derived reference, a typical feature of earthquake precursor is isolated from ionospheric foF2 recorded during earthquakes Mw≧5.0, 1994-1997. It is found that the probabilities of observing the features 1-3 days and 1-5 days priori the occurrence of earthquakes are 69% and 82%, respectively. Meanwhile, the greater earthquake magnitude is, the greater probability is. A certain characteristics and tendency in ionospheric foF2 seems to be related to the appearing day of the feature. A analysis shows that ionospheric variation is foF2 observed during earthquake events, 1998 generally agree with the characteristics and tendency.

誌謝a
ABSTRACTb
摘要c
第一章 緒論1
第二章 地震與電離層4
2.1板塊運動與地震的形成4
2.2電離層的形成及現象10
2.3電漿污染理論13
第三章 電離層觀測儀器16
3.1 電離層探測儀16
3.2 全球定位系統18
第四章 資料分析20
4.1歷史回顧20
4.2 統計分析方法23
4.2 算術平均法29
第五章 觀測結果31
5.1F域層峰31
5.2垂直全電子含量40
第六章 討論與結論42
附錄一、1994~1997年台灣地區規模5.0以上之地震資料45
附錄二、1994~1997年台灣地區規模5.0以上之地震分佈圖50
參考資料51

Barnes R. A., J. R.; R. S. Leonard, Observation of ionospheric disturbances following the alaska earthquake, 1965
Bishop, G. L., Klobuchar, J. A., and Doherty, P. H., Multipath effects on the determination of absolute ionospheric time delay from GPS signals, Radio Science, 20, 388-396, 1995
Blanc, E., Observations in the upper atmosphere of infrasonic waves from natural or artifical sources:a summary., Ann. Geophys., 3, 673-688.
Boyarchuk, K. A., A. M. Lomonosov, S. A. Pulinets, and V. V. Hegai, Variability of Earth atmospheric electric field and ion-aerosols kinetics in troposphere, Studia Geophysics Geodaetica, 1998.
Davies K., Ionospheric Radio, Peter Peregrinus Ltd. Publishing, U.K., 1990
Eric Calais, J. Bernard Minster, GPS, earthquakes, the ionosphere, and the Space Shuttle, Physics of the Earth and Planetary Interiors, V105, 167-181, 1998
Furumoto A. S., G. W. Prolss, P. F. Weaver, and P. C. Yuen, Acoustic coupling into the ionosphere from seismic waves of the earthquake at Kurile Islands on Auguest 11, 1969, 1970.
Hata, M., X. Tian, I. Takumi, S. Yabashi, and A. Imaizumi, ELF Horizontal Magnetic Flux Precursor of the Moderate M5.8 Yamanashi ’96 Inland Earthquake,-A general approach to electromagnetic wave precursor-, Journal of Atmospheric Electricity, Vol. 16, No. 3, pp. 199-220, 1996.
Hofmann-Wellenhof B., H. Lichtenegger, and J. Collins, GPS Theory and Practice, Springer-Verlag, New York, 1992.
Kikuchi H., Meteorologico-electric phenomena and electrohydrodynamics (EHD) or electromagnetohydrodynamics (EMHD), in Environmental and Space Electromagnetics, H. Kikuchi ed., Springer-Verlag, Tokyo, 1991.
Legen’ka, A. D., S. A. Pulinets, B. Zolesi, J. Defranceschi, and S. D. Gregory, Reaction of the ionosphere on Italian earthquake on November 23, 1980, private communcation.
Liu C.H., Klostermeyer, K.C. Yeh, T.B. Jones, T. Robinson, O. Holt, R. Leitinger, T. Ogawa, S. Kenji, K. Susumu, T. Ogawa, A.J. Bedard, and L. Kersley, Global Dynamic Resposes of the Atmosphere to the Eruption of Mount St. Helens on May 18, 1980, J. Geophys. Res., 87, A8, 6281-6290, 1982.
Maritz, J. S. and R.G. Jarrett, A Note on Estimating the Variance o the sample Median, Journal of the American Statistical Association, V73, No. 361, 1978.
Pulinets, S. A., A. D. Legen’ka, and V. A. Alekseev, On the possible mechanism of the seismo-ionospheric coupling, in Dusty and Dirty Plasma, Noise and Chaos in Space and in the Laboratory, Plenum Press Publishing, New York, 532-544, 1994a.
Publinets, S. A., A. D. Legen’ka, and V. A. Alekseev, Pre-earthquake ionospheric effects and their possible mechanisms, in Dusty and Dirty Plasmas, Noise and Chaos in Space and in the Laboratory, Plenum Press Publishing, New York,545-557, 1994b.
Shalimov, S. L., M. B. Gokhberg, Lithosphere-ionosphere coupling mechanism and its application for earthquake in Iran on June 20, 1990: 2. Interpretation of the ionospheric effects (in press 1997).
Shalimov, S. L., M. B. Gokhberg, Lithosphere-ionosphere coupling mechanism and its application for earthquake in Iran on June 20, 1990. A review of ionospheric measurements and basic assumptions, Physics of the Earth and Planetary Interiors, V105, 211-218, 1998.
Tadanori Ondoh, Ionospheric disturbances associated with great earthquake of Hokkaido southwest coast, Japan of July 12, 1993, Physics of the Earth and Planetary Interiors, V105, 261-269, 1998.
Voitove, G. I., I. P. Dobrovolsky, Chemical and isotropic-carbon instabilities of the native gasflows in seismically active regions, Physics of the Earth, 3, 20-31, 1994(in Russian).
Zaslavski, Y., M. Parrot, E. Blanc, Analysis of TEC measurements above active seismic regions, Physics of the Earth and Planetary Interiors, V105, 219-228, 1998.
Zelenova, T. I., and A. D. Legen’ka, Ionospheric effects connected wuth the Moneron earthquake 05.09.71, Izvestiya USSR Acad. Sci., 6, 89, 1989.
林明德 譯, 板塊構造學, 國立編譯館, 明文書局股份有限公司, 台北, 民國79年.
阮維周、盧世民, 譯, 地球的構造層圈, 環球書社, 台北, 民國66年11月.
徐明同, 地震學, 國立編譯館主編, 黎明文化事業公司出版, 台北, 民國68年.
孫正江 和 王華俊, 地電概論, pp. 53-69, 地震出版社, 1984.
葉怡君, 電離層的地震現象, 碩士論文, 國立中央大學太空科學研究所, 中壢, 1996.
蔡和芳, 全球定位系統觀測電離層全電子含量, 碩士論文, 國立中央大學太空科學研究所, 中壢, 1995.