DOI: 10.1002/2014GL060850
论文题名: The 2011 Tohoku Tsunami observed by an array of ocean bottom electromagnetometers
作者: Zhang L. ; Baba K. ; Liang P. ; Shimizu H. ; Utada H.
刊名: Geophysical Research Letters
ISSN: 0094-9929
EISSN: 1944-9660
出版年: 2014
卷: 41, 期: 14 起始页码: 4937
结束页码: 4944
语种: 英语
英文关键词: electromagnetic field
; propagation direction
; tsunami induced
; wave height
Scopus关键词: Electric fields
; Electromagnetic fields
; Analysis method
; Data analysis methods
; Faraday's laws
; Magnetic and electric fields
; Propagation direction
; Propagation process
; Tsunami generation
; Wave heights
; Tsunamis
; electromagnetic method
; estimation method
; parameterization
; seafloor
; tsunami
; wave generation
; Pacific Ocean
英文摘要: A tsunami induces secondary electromagnetic (EM) fields of significant intensity as a result of Faraday's law, and these EM fields can be recorded by instruments on the seafloor. Such observations will provide parameters that are useful in understanding tsunami generation and propagation processes. As such, EM sensors can be used as a type of tsunami sensor. In the present study, we report the observation of tsunami-induced EM signals by a small array of ocean bottom electromagnetometers consisting of four stations in the northwestern Pacific Ocean. Then, several data analysis methods are used to estimate tsunami parameters. Referring to the theoretical relation, the wave height is estimated from the observed magnetic and electric fields. Also, the propagation direction of the 2011 Tohoku Tsunami is estimated by applying analysis methods for an array and a single station. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904518728&doi=10.1002%2f2014GL060850&partnerID=40&md5=a6b7d34d869b2a44aa1b87bad7bebe6b
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7193
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: Earthquake Research Institute, University of Tokyo, Tokyo, Japan
Recommended Citation:
Zhang L.,Baba K.,Liang P.,et al. The 2011 Tohoku Tsunami observed by an array of ocean bottom electromagnetometers[J]. Geophysical Research Letters,2014-01-01,41(14).