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Multisite Remote Sensing for Tsunami-Induced Waves
Chen, Gang; Wang, Jin; Wu, Chen; Huang, Xueqin; Zhong, Dingkun; Qi, Hao; Huang, Liang; Li, Yaxian; Chen, G (reprint author), Wuhan Univ, Sch Elect Informat, Wuhan 430072, Peoples R China.
Department空间科学部
Source PublicationIEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
2016
Volume54Issue:12Pages:7177-7184
ISSN0196-2892
Language英语
KeywordGravity Waves Ionosonde Phase Progression Ray Tracing Tsunami
AbstractIn the 2011 Tohoku tsunamigenic earthquake, ionospheric anomalies generated by tsunami-induced gravity waves were observed by many types of instruments. Three digisondes and one Doppler receiver located in East Asia were applied to investigate the far-field ionospheric response to the westward-propagating gravity waves generated by the earthquake. Based on time-period spectrum analysis, oscillations between 20 and 36 min on the f oF2 (critical frequency of F2 layer) curves and Doppler variations of each observation location were identified. The horizontal group speed, generation time, and source location estimated with the ray-tracing method all indicated that the periodic disturbances recorded by the four radio systems were gravity waves induced by the tsunami following the 2011 Tohoku earthquake. The plasma frequency variations at five fixed altitudes in the ionospheric F2 layer over I-Cheon were used to investigate the vertical propagation of the tsunami-associated gravity waves. The measured phase progression in the vertical direction was opposite that of the energy transport, which further confirmed that the recorded waves were atmospheric gravity waves. The use of multisite remote sensing for examining tsunami-induced waves in the ionosphere may open new perspectives in oceanic monitoring and future tsunami warning systems.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5631
Collection空间科学部
Corresponding AuthorChen, G (reprint author), Wuhan Univ, Sch Elect Informat, Wuhan 430072, Peoples R China.
Recommended Citation
GB/T 7714
Chen, Gang,Wang, Jin,Wu, Chen,et al. Multisite Remote Sensing for Tsunami-Induced Waves[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2016,54(12):7177-7184.
APA Chen, Gang.,Wang, Jin.,Wu, Chen.,Huang, Xueqin.,Zhong, Dingkun.,...&Chen, G .(2016).Multisite Remote Sensing for Tsunami-Induced Waves.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,54(12),7177-7184.
MLA Chen, Gang,et al."Multisite Remote Sensing for Tsunami-Induced Waves".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 54.12(2016):7177-7184.
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2016547177-7184.pdf(1524KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
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