Multisite Remote Sensing for Tsunami-Induced Waves
文献类型:期刊论文
作者 | Chen, Gang; Wang, Jin; Wu, Chen; Huang, Xueqin; Zhong, Dingkun; Qi, Hao; Huang, Liang; Li, Yaxian |
刊名 | IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
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出版日期 | 2016 |
卷号 | 54期号:12页码:7177-7184 |
关键词 | Gravity waves ionosonde phase progression ray tracing tsunami |
ISSN号 | 0196-2892 |
通讯作者 | Chen, G (reprint author), Wuhan Univ, Sch Elect Informat, Wuhan 430072, Peoples R China. |
英文摘要 | In 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. |
收录类别 | SCI ; EI |
语种 | 英语 |
源URL | [http://ir.nssc.ac.cn/handle/122/5631] ![]() |
专题 | 国家空间科学中心_空间科学部 |
推荐引用方式 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.,...&Li, Yaxian.(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. |
入库方式: OAI收割
来源:国家空间科学中心
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