A possible space-based tsunami early warning system using observations of the tsunami ionospheric hole

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題名:	A possible space-based tsunami early warning system using observations of the tsunami ionospheric hole
作者:	劉正彥;Kamogawa, Masashi;Orihara, Yoshiaki;Tsurudome, Chiaki;Tomida, Yuto;Kanaya, Tatsuya;Ikeda, Daiki;Gusman, Aditya Riadi;Kakinami, Yoshihiro;Liu, Jann-Yenq;Toyoda, Atsushi
貢獻者:	地球科學學院太空科學與工程學系
關鍵詞:	639/33/525/869;704/2151/2809;704/4111;704/525/869;Coastal zone;Earthquakes;Emergency communications systems;Global positioning systems;GPS;Humanities and Social Sciences;multidisciplinary;Science;Seismic activity;Tsunamis
日期:	2016-12-01
上傳時間:	2026-04-23 11:02:52 (UTC+8)
出版者:	Nature Publishing Group;London: Springer Science and Business Media LLC
摘要:	摘要： AbstractIonospheric plasma disturbances after a large tsunami can be detected by measurement of the total electron content (TEC) between a Global Positioning System (GPS) satellite and its ground-based receivers. TEC depression lasting for a few minutes to tens of minutes termed as tsunami ionospheric hole (TIH) is formed above the tsunami source area. Here we describe the quantitative relationship between initial tsunami height and the TEC depression rate caused by a TIH from seven tsunamigenic earthquakes in Japan and Chile. We found that the percentage of TEC depression and initial tsunami height are correlated and the largest TEC depressions appear 10 to 20 minutes after the main shocks. Our findings imply that Ionospheric TEC measurement using the existing ground receiver networks could be used in an early warning system for near-field tsunamis that take more than 20 minutes to arrive in coastal areas. 其他題名： Sci Rep 出版者： London: Springer Science and Business Media LLC 出版日期： 2016-12-01 出處： Scientific Reports, 2016-12, Vol.6 (1), p.37989, Article 37989 資源來源： ProQuest Open Access Content Collection 版權： The Author(s) 2016 版權： Copyright Nature Publishing Group Dec 2016 版權： Copyright © 2016, The Author(s) 2016 The Author(s) 識別號： ISSN: 2045-2322 識別號： EISSN: 2045-2322 識別號： DOI: 10.1038/srep37989 識別號： PMID: 27905487
顯示於類別:	[太空科學與工程學系] 期刊論文

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