以作者查詢圖書館館藏 、以作者查詢臺灣博碩士 、以作者查詢全國書目 、勘誤回報 、線上人數:11 、訪客IP:3.144.34.48
姓名 吳宗祐(Tsung-Yu Wu) 查詢紙本館藏 畢業系所 太空科學研究所 論文名稱 利用全球電離層圖偵測2014年8月24日美國加州南納帕規模6.0地震電離層前兆
(Seismo-Ionospheric Precursor in the GIM TEC associated with the 24 August 2014 M6.0 South Napa Earthquake)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]
- 本電子論文使用權限為同意立即開放。
- 已達開放權限電子全文僅授權使用者為學術研究之目的,進行個人非營利性質之檢索、閱讀、列印。
- 請遵守中華民國著作權法之相關規定,切勿任意重製、散佈、改作、轉貼、播送,以免觸法。
摘要(中) 利用全球電離層圖(Global Ionosphere Map, GIM)之全電子含量(Total Electron Content, TEC),探討2014年8月24日M6.0美國加州南納帕地震電離層異常前兆。首先統計研究2000年1月1日至2014年8月23日(近15年期間),美國加州地區52筆規模M≧5.0地震前後30天GIM TEC異常變化。Z檢定統計結果呈現這些地震前2-4天02:00-04:00UT期間,GIM TEC會顯著異常減少(負異常)。時序分析結果顯示GIM TEC於2014年8月22日(南納帕地震前2天)02:00UT時段出現負異常,此一事件之時間異常前兆與統計結果相吻合。空間分析異常之全球分佈,結果發現此一負異常持續於2014年8月22日02:00-12:00UT(地震前2天) 且唯獨出現在震央附近。比對GIM TEC空間梯度之全球異常分佈,發現東向梯度於8月19日16:00-24:00UT出現異常極大,僅發生於震央附近。此兩空間異常說明南納帕地震前2-5天,震央附近之GIM TEC出現異常變化。進一步以物理模式重製此一電離層負異常現象,顯示地震孕震期間所產生之西向電場可能扮演重要角色。 摘要(英) This study examines seismo-ionospheric precursors (SIPs) in the global ionosphere map (GIM) of the total electron content (TEC) associated with the 24 August 2014 M6.0 South Napa earthquake. We separate analysis of GIM to three parts including statistical, temporal and spatial analysis. Extract 52 M≧5.0 earthquake during 1 January 2000 to 23 August 2014 to do z-test. Z-test result indicates that there are significantly TEC decreasing (negative anomaly) 2-4 days before earthquake during 02:00-04:00UT. The temporal SIP in the GIM TEC around the epicenter significantly decreasing at 02:00UT on 22 August. Spatial SIP in the GIM TEC indicate that negative anomaly only happen around the epicenter during 02:00-12:00UT on 22 August. Check spatial gradient of GIM TEC and find that there are negative anomaly of eastward gradient during 16:00-24:00UT on 19 August. Both of spatial analysis show the result that SIP was triggered 2-5 days before the South Napa earthquake. Model simulation is further carried out to reproduce the SIP in the GIM before the earthquake. Results indicate that the westward electric field generated over the epicenter area during the earthquake preparation period might be essential. 關鍵字(中) ★ 地震
★ 電離層關鍵字(英) 論文目次 中文摘要 i
英文摘要 ii
誌謝 iii
目錄 v
圖目錄 vii
表目錄 ix
一、緒論 1
1-1 電離層 1
1-2 地震電離層前兆 3
1-3 研究動機 8
二、觀測資料與分析方法 10
2-1 全球電離層圖 10
2-2 全球電離層全電子含量異常定義 13
2-3 Z檢定 15
2-4 全球電離層圖全電子含量時間前兆 17
2-5 全球電離層圖全電子含量空間前兆 18
三、南納帕地震分析 20
3-1加州地區地震統計 20
3-2南納帕地震之時間變化 26
3-3南納帕地震之空間變化 28
四、討論與結論 31
參考文獻 46
附錄一 48
附錄二 53參考文獻 Liu, J. Y., Y. I. Chen, Y. J. Chuo, and H. F. Tsai (2001), Variations of ionospheric total electron content during the Chi-Chi earthquake, GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 7, PAGES 1383-1386, APRIL 1, 2001
Liu, J. Y., Y. J. Chuo, S. J. Shan, Y. B. Tsai, S. A. Pulinets, and S. B. Yu
(2004), Pre‐earthquake ionospheric anomalies monitored by GPS TEC,
Ann. Geophys., 22, 1585–1593, doi:10.5194/angeo-22-1585-2004.
Liu, J. Y., et al. (2009), Seismoionospheric GPS total electron content
anomalies observed before the 12 May 2008 Mw7.9 Wenchuan earthquake,
J. Geophys. Res., 114, A04320, doi:10.1029/2008JA013698.
Liu, J. Y., Y. I. Chen, C. H. Chen, and K. Hattori (2010),Temporal and spatial precursors in the ionospheric global positioning system (GPS) total electron content observed before the 26 December 2004 M9.3 Sumatra–Andaman Earthquake, JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 115, A09312, doi:10.1029/2010JA015313, 2010
Liu, J. Y., C. H. Chen, C.‐H. Lin, H. F. Tsai, C. H. Chen, and M. Kamogawa (2011), Ionospheric disturbances triggered by the 11 March 2011 M9.0 Tohoku earthquake, J. Geophys. Res., 116, A06319, doi:10.1029/2011JA016761.
Liu, J. Y., H. Le, Y. I. Chen, C. H. Chen, L. Liu, W. Wan, Y. Z. Su, Y. Y. Sun, C. H. Lin, and M. Q. Chen (2011), Observations and simulations of seismo-ionospheric GPS total electron content anomalies before the 12 January 2010 M7 Haiti earthquake, JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 116, A04302, doi:10.1029/2010JA015704, 2011
Liu, J.Y., Chen, C.H., Tsai, H.F., Le, H., 2013. A Statistical study on seismo-ionospheric anomalies of the total electron content for the period of 56 MP6.0 earthquakes occurring in China during 1998–2012. Chin. J. Space Sci. 0254–2164/2013/33(3), 258–269.
Chen, Y.-I., et al. Statistical evidences of seismo-ionospheric precursors applying receiver operating characteristic (ROC) curve on the GPS total electron content in China. Journal of Asian Earth Sciences (2015), http://dx.doi.org/10.1016/j.jseaes.2015.05.028
Su, Y. C., J. Y. Liu, S. P. Chen, H. F. Tsai, and M. Q. Chen (2013), Temporal and spatial precursors in ionospheric total electron content of the 16 October 1999 Mw7.1 Hector Mine earthquake, J. Geophys. Res. Space Physics, 118, 6511–6517, doi:10.1002/jgra.50586
Amante, C. and B.W. Eakins, 2009. ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis. NOAA Technical Memorandum NESDIS NGDC-24. National Geophysical Data Center, NOAA. doi:10.7289/V5C8276M指導教授 劉正彥(Jann-Yenq Liu) 審核日期 2016-7-28 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